Participants of former LTC events came from:

Australia Austria Bangladesh Belgia Brasil Bulgary Canada China Croatia Czech Republic Denmark EU Egypt Estonia Ethiopia Finland France Germany Ghana Greece Hungary India Iran Ireland Italy Japan Korea Kyrgistan Latvia Libya Lithania Malta Madagascar Morocco Mexico Netherlands Nigeria Norway Peru Poland Qatar Portugal Romania Russia Serbia Slovakia Slovenia South_Africa Spain Sweeden Switzerland Tunisia Turkey UK Ukraine Uzbekistan USA Vietnam

Since 1995! 22nd Anniversary!

Registration Open


WELCOME to the
8th Language & Technology Conference:
Human Language Technologies
as a Challenge for Computer Science and Linguistics
November 17-19, 2017, Poznań, Poland
In memoriam Alain Colmerauer (1941-2017)
Pioneer of logic programming in natural language processing
LTC Program Committee member in 2005
who left us on May 12, 2017



Jacek Jaśkowiak, Mayor of Poznań

BramaPoznania.jpg Dworzec.jpg Jesuit_College.jpg katedra-poznan.jpg Koziolki.jpg MaltaPoznan.jpg Okraglak.jpg Ostrow.jpg Poznanbrowar2.jpg RATUSZ.jpg StaryBrowar.jpg StaryMarych.jpg StaryRynekPoznan.jpg Zamek.jpg coll.jpg

Fundacja UAM
Adam Mickiewicz University,
Collegium Minus, Presidence
Adam Mickiewicz University Foundation


ELRA       FLaReNet       META_Net       PTI       IEEE Computer Society Poznań


Amazon Samsung XTM


Dear Colleagues,

The 8th Language and Technology Conference (LTC 2017), a meeting organized by the Faculty of Mathematics and Computer Science of the Adam Mickiewicz University, Poznań, Poland and the Adam Mickiewicz University Foundation, will take place on November 17-19, 2017. Following the tradition of the past events, it is supported by ELRA, FlaReNet, and META-NET.

Yes, we started 22 years ago! Our tradition goes back to the Language and Technology Awareness Days, a meeting organized in 1995 with the assistance of the European Commission (DG XIII). Among the key speakers were Antonio Zampolli (Italy), Dafydd Gibbon (Germany), Dan Tufiş (Romania), Orest Kossak (Ukraina). Today, we refer to this event as the first LTC. Ten years later, we decided to meet again, and since then the conference is being organized every two years as the “Language & Technology Conference: Human Language Technologies as a Challenge for Computer Science and Linguistics”.

Since the very beginning (1995) the meetings of the LTC series continue to address Human Language Technologies (HLT) as a challenge for computer science, linguistics and related fields. Fostering language technologies and resources remains an important objective in our dynamically changing information-saturated world that motivate us to invite you for joining us at the LTC 2017 in Poznań.

Zygmunt Vetulani and Patrick Paroubek
LTC 2017 Co-Chairs and


Chris Cieri

Executive Director, Linguistic Data Consortium,University of Pennsylvania,3600 Market Street, Philadelphia, PA. 19104 Penn State University, USA

BIO: Christopher Cieri’s interests lie at the intersection of language, large data, and computation. He received his PhD in Linguistics from the University of Pennsylvania where he focused on sociolinguistics, language contact, phonetics, phonology and morphology. He has worked since 1983 applying technology to linguistic analysis and language teaching using data sets that are too large to process with purely human effort. Cieri became the Executive Director of the Linguistic Data Consortium in 1998 and has since been responsible for overseeing all aspects of the Consortium’s operations including the publication of over 500 data sets and the management of many sponsored programs. His current work focuses on the science of linguistic annotation and the analysis of conversational data, most recently in identifying linguistic features to correlate with clinical diagnostic categories. See here for CV

Title: Addressing the Language Resource Gap through Alternative Incentives, Workforces and Workflows

Abstract:For most languages, genres and technologies, the absence of Language Resources impedes progress despite several decades of intensive effort from governments and companies around the world. This deficiency even affects languages with worldwide economic and political influence and for most of the world’s 7000 linguistic varieties, the absence is acute. Current approaches cannot hope to meet the resource demand for even a reasonable subset of languages because they seek to document phenomena of great variability using resources that are highly constrained in terms of amount, duration and scope. This paper describes efforts that use non-monetary incentives to elicit greater contributions of linguistic data, metadata and annotation and sketches the adjustments to workforces, workflows and post-processing needed to collect and exploit data so elicited. MORE

Joseph van Genabith

DFKI GmbH, Saarbrücken, Germany

BIO: Josef van Genabith is one of the Scientific Directors of DFKI, the German Research Centre for Artificial Intelligence, where he heads the Multilingual Technologies (MLT) Group, and jointly with Prof. Hans Uszkoreit, the Language Technology (LT) Lab. He is also Professor of Translation-Oriented Language Technologies at Saarland University, Germany. He was the founding Director of the Centre for Next Generation Localisation (CNGL, now ADAPT), in Dublin, Ireland, and a Professor in the School of Computing at Dublin City University (DCU). He worked as a researcher at the Institut für Maschinelle Sprachverarbeitung (IMS) at the University of Stuttgart, Germany. He was awarded a PhD from the University of Essex, U.K., and obtained his first degree at RWTH Aachen, Germany. His research interests include machine translation, parsing, generation, computer-assisted-language-learning and morphology. Currently he coordinates the QT21 H2020 research and innovation project on machine translation ( and heads EC SMART 2014/1074 and 2015/1091 service contracts on European Language Resource Coordination (ELRC) ( The Impact of Neural Networks on Language Technologies: a Case Study on Machine Translation. MORE

Title: The Impact of Neural Networks on Language Technologies: a Case Study on Machine Translation

Abstract: Deep Neural Nets (DNNs) are revolutionising many (if not most) areas in Artificial Intelligence, including Language Technologies (LTs), often with remarkable performance improvements. In this talk, I would like to take a closer look at why this is the case, focusing on Machine Translation (MT). I will contrast neural MT with previous approaches to MT. In doing so I will be drawing on research carried out in the QT21 H2020 research and innovation project ( and QT21 systems for the WMT-2015, -2016 and -2017 shared tasks. I will concentrate on morphologically complex languages with less constrained word order. I will also consider the more general impact of DNNs on processing pipelines, interoperability (as in system engineering) and end-to-end training for complex LT systems. I will outline potential benefits and end with a list of some of the currently open research questions.

(To see Verónica&Guitar click the picture)

Verónica Dahl
Computing Science Department, Simon Fraser University, Burnaby B.C., Canada

Verónica Dahl is an Argentine/Canadian computer scientist who is recognized as one of the 15 founders of the field of logic programming. She has contributed over 100 scientific publications in the fields of computational linguistics, deductive knowledge bases, computational molecular biology and web based virtual worlds. She has received numerous scientific awards, such as the Calouste Gulbenkian Award for Science and Technology, and a few literary awards as well. Her greatest ambition is to help bridge the gap between the formal and the humanistic sciences, in the hopes that this will be conducive to an overall more balanced world. She is presently Professor Emeritus at Simon Fraser University. Her research is supported by NSERC.
See here for full CV

Title:Truth and Beauty in Computational Linguistics

We coin and propose the "Colmerauer test" as an alternative to the Turing test as a method to evaluate computational linguistic theories along the axes of truth (how much of the truth are we able to glean within a given approach?) and beauty (how elegant are the formulations resulting from a given approach?). We argue that in computational linguistics, the Colmerauer test is superior to the more widely used Turing test.

Jan Wielemaker
Centrum voor Wiskunde en Informatica (CWI), the Netherlands
Kyndi, California

Jan Wielemaker is a Dutch computer scientist. He is the initiator of and lead developer of SWI-Prolog, the most widely used Prolog implementation. He has been involved in a large number of academic research projects in domains such as knowledge engineering, ontology management, natural language processing, linked data processing and data science as well as commercial activities including business rule enforcement, knowledge based systems, security and natural language understanding. The development of SWI-Prolog has been embedded and was guided by the needs of these projects, turning SWI-Prolog into a versatile, robust and scalable system. Current activities involve deploying Prolog for transparent data science and coordinating the developers community.

Title: A second life for Prolog

Abstract: Spread over three sessions we will first give a brief overview of the basics behind declarative programming and Prolog. In the next sessions we discuss how Prolog can be used as part of a modern IT tool chain. A tentative list of topics are (1) deploying Prolog as a web server including Pengines, Prolog engines on the web, (2) combining Prolog and R into a data science pipeline and (3) accessing linked data (RDF) from Prolog.

Alain Colmerauer, Pionieer of logic programming in NLP - Special Session

Alain Colmerauer (1941-2017), Pioneer of logic programming in natural language processing and LTC Program Committee member in 2005, left us on May 12, 2017

Call for Papers and Participation

Alain Colmerauer Special Session on Logic Programming and NLP at the 8th Language and Technology Conference (LTC 2017), November 17-19, 2017, Poznań, Poland

In memoriam Alain Colmerauer (1941-2017), Pioneer of logic programming in natural language processing, LTC Program Committee member in 2005

In memory of Alain Colmerauer who left us on May 12, 2017, and to whom LTC 2017 is dedicated, we organize a special session, for which contributions that rely or extend his work, as well concerning himself are solicited. These contributions can be research as well as state of the art papers, mini-tutorials or demos. Besides papers on new results we will highly appreciate contributions reporting on author’s former results (already published or not), often remaining unknown to the large public, in particular those that directly refer to the work of Alain Colmeauer and/or his students. Also critical and comparative studies concerning logic programing versus other programming paradigms are welcome.
We will consider:
- papers,
- posters,
- demos,
- and other forms.
We plan a post-conference publication of peer reviewed full papers within 6 month after the conference (more details will be announced).

Authors who wish to contribute to the Alain Colmerauer Session must submit an abstract according to the standard procedure indicated below and on this web page, and to inform the LTC 2017 organizers of their intention. We also intend an open panel discussion were we expect a wide participation.

The Alain Colmerauer Session will be fully integrated with the LTC. This means that its program is accessible to all LTC participants, and similarly, the participants of the Session will have access to all LTC events. However, the session will have its own deadlines and publication policy.

Please contact the organizers writing to and (cc to,, and

Zygmunt Vetulani, Patrick Saint-Dizier and Krzysztof Apt

Zygmunt Vetulani (Poland), Patrick Saint-Dizier (France), Krzysztof Apt (The Netherlands and Poland)

* Deadline for submission of abstracts: October 26, 2017
* Acceptance/Rejection of abstracts: within one week after submission, but not later than November 1, 2017
* Participation fees for authors of accepted abstracts are to be payed no later than on November 1, 2017
* Colmerauer Session: during LTC, November 17-19, 2017

The conference language is English.

We accept abstracts in English only. The abstracts length should be of 3000 – 5000 characters (incl. spaces). Abstracts should contain the title, author(s) name(s) and affiliation(s), as well “Colmerauer Session” as a keyword. The abstracts should be submitted using the general LTC procedure (see section “Paper Submission” at
Abstract submission is obligatory to all active participants of the Colmerauer Session but does not exclude submission to the LTC – main conference. In that case following the general LTC submission procedure is mandatory.
Important notice. The above mentioned forms of publication will not exclude of the publication in the post-conference book.

POST-CONFERENCE PAPERS A post-conference volume with extended versions of selected papers will be published in Lecture Notes in Artificial Intelligence series (Springer Verlag). Papers will be selected based on reviewers’ reports among the best evaluated papers of general interest with new, innovative results. Preference will be given to papers providing significant content extension with respect to the paper presented at the conference.

Only electronic registration will be possible. Details will be published at

As for all LTC events (see, for deadlines see DATES above.

The 8th Language and Technology Conference (LTC 2017), a meeting organized by the Faculty of Mathematics and Computer Science of the Adam Mickiewicz University, Poznań, Poland and the Adam Mickiewicz University Foundation, will take place on November 17-19, 2017. Following the tradition of the past events, it is supported by ELRA, FlaReNet, and META-NET. Since the very beginning (1995) the meetings of the LTC series continue to address Human Language Technologies (HLT) as a challenge for computer science, linguistics and related fields. This year the conference will feature invited talks by Chris Cieri (Penn State University, USA), Verónica Dahl (Simon Fraser University, School of Computing Science, Burnaby B.C., Canada) , Joseph van Genabith (DFKI, Germany), and Jan Wielemaker (University of Amsterdam, Netherlands).

For further information visit LTC website

CONTACT (cc to


The list of conference topics includes the following (the ordering is not significative):

  • communicative intelligence
  • computational semantics
  • computer modeling of language competence
  • corpora-based methods in language engineering
  • electronic language resources and tools
  • formalization of natural languages
  • HLT related policies
  • HLT standards and best practices
  • HLTs as support for e-learning
  • HLTs as support for foreign language teaching
  • HLTs as support in solving homeland security problems (technology applications and legal aspects)
  • knowledge representation
  • language-specific computational challenges for HLTs (especially for languages other than English)
  • legal issues connected with HLTs (problems and challenges)
  • less resourced languages
  • logic programming in natural language processing
  • man-machine NL interfaces
  • methodological issues in HLT
  • NL applications in robotics
  • NL based interfaces
  • NL understanding by computers
  • NL user modeling
  • NLP methods in cyber-criminality detection and prevention
  • parsing and other forms of NL processing
  • question answering
  • sentiment, opinion and emotion analysis
  • speech processing
  • system prototype presentations
  • systems with NL competence
  • technological aspects of nonverbal linguistics
  • text-based information retrieval and extraction
  • tools and methodologies for developing multilingual systems
  • translation enhancement tools
  • validation in all areas of HLTs
  • visionary papers in the field of HLT
  • WordNet-like ontologies

This list is by no means closed and we are open to further proposals. Please do not hesitate to contact us in order to feed us with your suggestions and ideas of how to satisfy your expectations concerning the program. The Program Committee is also open to suggestions concerning accompanying events (workshops, exhibits, panels, etc). Suggestions, ideas and observations should be addressed directly to the LTC Co-Chairs by email ( or .


On numerous requests and questions we are pleased to announce a special call for demos and posters to be presented during the LTC 2017 (November 17-19, 2017) at dedicated time slots.

This Call for Demos and Posters Language is addressed to the whole concerned community: researchers, language engineers, language engineering providers. We welcome demos and/or posters presenting final results as well as current on-going projects concerning Language Resources (LR), LR Tools and LR-based Software, as well as related theoretical issues.
Companies are invited to present their novel or state-of-the-art products. We are interested in:

  • language technology based products,
  • application-scale language engineering tools,
  • applications for production, conservation and maintenance of HLT language resources.

The content of demos/posters must be strictly compatible with the thematic scope of the LTC (see above).

Submission should be made in the same way as for LTC papers. Authors are supposed to submit an abstract of 300 – 500 words (including title, affiliation, keywords), no longer than one page.
Submission procedure as for regular LTC papers (with DEMO/POSTER in the paper description).

Submissions should not be anonymous and will be checked by Organizers for compatibility with the general LTC activity area, as well for formal correctness.

Abstracts will be published in the “Abstracts Corner” of the proceedings:
- in both paper and electronic form if submitted before October 29 and the payment of the conference fee effected by November 1,
- in the electronic form only in case of submission before November 6 and payment before November 9 (Thursday).

Demo presenters are supposed to be equipped with necessary mobile computer equipment. No additional screens will be available. Internet will be provided. Posters must be in the A0 format and will be displayed horizontally. No other format will be accepted.

Submission deadline: November 9

All presenters must register to the LTC and pay the conference fee. Fees as well as the payment procedure are the same for demo, poster and paper presenters.
Presentation of demos and posters closely related to an accepted paper (the same title with the subtitle respectively DEMO or POSTER) is free for paper presenters.



Zygmunt Vetulani (Adam Mickiewicz University, Poznań, Poland) - chair
Patrick Paroubek(LIMSI-CNRS, Orsay, France) - chair
Victoria Arranz (ELRA, France)
Jolanta Bachan (Adam Mickiewicz University, Poznań, Poland)
Núria Bel (Universitat Pompeu Fabra, Barcelona, Spain)
Krzysztof Bogacki (Warsaw University, Poland)
Christian Boitet (IMAG, France)
Gerhard Budin (Univ. Vienna, Austria)
Nicoletta Calzolari (ILC/CNR, Italy)
Nick Campbell (Trinity College Dublin, Ireland)
Khalid Choukri (ELRA, France)
Adam Dąbrowski (Poznań University of Technology, Poland)
Elżbieta Dura (University of Skovde, Sweden)
Katarzyna Dziubalska-Kołaczyk (Adam Mickiewicz University, Poznań, Poland)
Moses Ekpenyong (Uyo University, Nigeria)
Cedrick Fairon (University of Louvain, Belgium)
Christiane Fellbaum (Princeton University, USA)
Piotr Fuglewicz (TIP Sp. z o.o., Poland)
Maria Gavrilidou (ILSP, Greece)
Dafydd Gibbon (University of Bielefeld, Germany)
Marko Grobelnik (J. Stefan Institute, Slovenia)
Eva Hajičová (Charles University, Czech Republic)
Krzysztof Jassem (Adam Mickiewicz University, Poland)
Girish Nath Jha (Jawaharlal Nehru University, India)
Katarzyna Klessa (Adam Mickiewicz University, Poznań, Poland)
Cvetana Krstev (University of Belgrade, Serbia)
Eric Laporte (University Marne-la-Vallee, France)
Yves Lepage (Waseda University, Japan)
Gerard Ligozat (LIMSI/CNRS, France)
Natalia Loukachevitch (Research Computing Center of Moscow State University, Russia)
Wiesław Lubaszewski (AGH, Poland)
Bente Maegaard (Centre for Language Technology, Denmark)
Bernardo Magnini (ITC IRST, Italy)
Jacek Marciniak (Adam Mickiewicz University in Poznań, Poland)
Joseph Mariani(LIMSI-CNRS, Orsay, France)
Jacek Martinek (Poznań University of Technology, Poland)
Gayrat Matlatipov (Urgench State University,Uzbekistan)
Keith J. Miller (MITRE, USA)
Asunción Moreno (UPC, Spain)
Agnieszka Mykowiecka (IPI PAN, Poland)
Jan Odijk (Univ. Utrecht, The Netherlands)
Maciej Ogrodniczuk (IPI PAN, Poland)
Karel Pala (Masaryk University, Czech Republic)
Pavel S. Pankov (National Academy of Sciences, Kyrgyzstan)
Patrick Paroubek (LIMSI-CNRS, France)
Adam Pease (IPsoft, New York City, USA)
Maciej Piasecki (Wrocław University of Technology, Poland)
Stelios Piperidis (ILSP, Greece)
Gabor Proszeky (Morphologic, Hungary)
Georg Rehm (DFKI, Germany)
Michał Ptaszyński (University of Hokkaido, Japan)
Rafał Rzepka (University of Hokkaido, Japan)
Kepa Sarasola Gabiola (Univ. del Pas Vasco, Spain)
Frédérique Segond (Viseo Group, France)
Sanja Seljan (University of Zagreb, Croatia)
Zhongzhi Shi (Institute of Computing Technology / Chinese Academy of Sciences, China)
Janusz Taborek (Adam Mickiewicz University, Poznań, Poland)
Ryszard Tadeusiewicz (AGH, Poland)
Marko Tadić (University of Zagreb, Croatia)
Dan Tufiş (RCAI, Romania)
Hans Uszkoreit (DFKI, Germany)
Tamás Váradi (RIL, Hungary)
Andrejs Vasiljevs (Tilde, Latvia)
Cristina Vertan (Univ. Hamburg, Germany)
Dusko Vitas (University of Belgrade, Serbia)
Piek Vossen (VU University Amsterdam, Netherlands)
Jan Węglarz (Poznań University of Technology, Poland)
Bartosz Ziółko (AGH, Poland)
Mariusz Ziółko (AGH, Poland)
Richard Zuber (CNRS, France)
Andrzej Zydroń (XTM-INTL, UK)


Zygmunt Vetulani - chair / UAM (e-mail)
Jolanta Bachan / UAM
Marek Kubis - secretary / UAM
Jacek Marciniak / UAM
Tomasz Obrębski / UAM
Hanna Szafrańska / FUAM
Marta Witkowska / UAM
Mateusz Witkowski /UAM

The conference language is English.


Acceptance will be based on the reviewers' assessments (anonymous submission model /blind reviewing/). The accepted papers will be published in the conference proceedings (hard copy, with ISBN number) and on CD-ROM. The abstracts of the accepted contributions will also be made available via the conference page (during its lifetime). Publication requires full electronic registration and payment of the conference fee (full registration) by at least one of the co-authors. For the obvious reason that the conference fee must cover (in particular) the publication costs, the following rule is applied: "One registration fee entitles publication of one paper.

A post-conference volume with extended versions of selected papers will be published in the Springer Verlag series Lecture Notes in Artificial Intelligence.

The LTC 2005 post conference selection appeared in form of Special Issue of Archives of Control Sciences (2005, Volume 15 nb. 3 and Volume 15 nb. 4)

Archives Of Control Sciences Archives Of Control Sciences

The LTC 2007 post-conference volume (revised, extended papers) appeared in the Springer Verlag series LNAI (vol. 5603).

Lecture Notes in Artificial Intelligence (5603)

The LTC 2009 post-conference volume (revised, extended papers) appeared in the Springer Verlag series LNAI (vol. 6562).

Lecture Notes in Artificial Intelligence (6562)

The LTC 2011 post-conference volume (revised, extended papers) appeared in the Springer Verlag series LNAI (vol. 8387).

Lecture Notes in Artificial Intelligence (8387)

The LTC 2013 post-conference volume (revised, extended papers) appeared in the Springer Verlag series LNAI (vol. 9561).

Lecture Notes in Artificial Intelligence (9561)

The LTC 2015 post-conference volume (revised, extended papers) is in preparation.



The conference accepts papers in English only. Papers (5 pages in the conference format) are due by September 25, 2017 (midnight, any time zone) and should not disclose the author(s) in any manner. In order to facilitate submission we have decided to reduce the formatting requirements as much as possible at this stage. Please, however, do observe the following:

  1. Accepted fonts for texts are Times Roman, Times New Roman. Courier is recommended for program listings. Character size for the main text should be 10 points, with 11 points leading (line spacing).
  2. Text should be presented in 2 columns, 8,42 cm each with 0,95 cm between columns (gutter).
  3. The accepted document size is 5 pages formatted according to (1) and (2) above.
  4. The paper must be submitted as a PDF document, together with an editable source in MS Word or Latex. (Please no other formats.)

The Word template (ELRA/LREC based format) is available here.

The Latex template (ELRA/LREC based format) is available here.

All submissions are to be made electronically via the LTC'17 web submission system (EasyChair).

Acceptance/refusal notification will be sent by October 16, 2017. At the same time, the detailed guidelines for the final submission of accepted papers will be published on the conference web site.


The deadline for final submissions is October 27, 2017.

Final papers should be sent by e-mail to as an attachment and should conform to the following rules:

  • The attached file should be named ltc-PAPERID-FirstAuthorName.pdf   /example: ltc-005-copernicus.pdf (the paper #5 with Copernicus as the submitting author).
  • The subject of your e-mail should be LTC FINAL PAPER  PAPERID   /example: LTC FINAL PAPER 005.
  • The required final format is the same as for the initial paper submission. Please use the same templates to prepare the final PDF file.
Please check that all figures are understandable in gray-scale and all non-standard fonts are embedded in the PDF file.


  • Deadline for submission of papers for review: September 25, 2017
  • Acceptance/Refusal notification: October 16, 2017
  • Deadline for submission of final versions of accepted papers: October 23, October 27, 2017
  • Conference: November 17-19, 2017
  • LTC affiliated workshops and demo/poster sessions: see the sections corresponding to respective workshops and sessions


To register complete the following form.
The payment instructions are provided on the last page of the registration form.
The paper will not be further processed until the payment of the conference fee is completed.


Non-student participants:

  • Regular registration fee (payment before November 6, 2017): 200 EURO
  • Late registration fee (payment after November 5, 2017): 260 EURO
Student participants:
  • Regular registration fee (payment before November 6, 2017): 140 EURO
  • Late registration fee (payment after November 5, 2017): 190 EURO

To be entitled to student rates the participant must present a student card (or equivalent document) valid on July 31, 2017.

Student registrations must be accompanied by proof of full-time student status (in form of scanned copy of a student ID card or equivalent document) and send by e-mail to The e-mail subject field must have the following format:
(e.g. LTC-17-student-ID-card-Vetulani)

The conference fee covers:

  • participation in the scientific program /including presentation of one paper/*)
  • conference materials
  • proceedings on CD and paper
  • social events (banquet,...)
  • coffee breaks

Conference fee for an accompanying persons is 50 EUR. The fee covers participation in non-scientific program (banquet,session coffee breaks).

The fee for one extra page (max. 2 allowed) will be charged 21 Euro.

*) In case of multiple submission the extra fee of 126 Euro for one additional paper of standard length (not covered by the conference fee paid by a co-author) is to be paid.


Warning! Please take into account that the program may still slightly change.

Day 1, Friday, November 17, 2017
Adam Mickiewicz University Library - 38/40 Ratajczaka Street

8:00 - 10:30


Collegium Maius - 10 Fredry Street

11:00 - 11:15

Opening by the Adam Mickiewicz University Rector

11:15 - 11:40

Colette Colmerauer: about Alain Colmerauer's work

11:40 - 12:20

Truth and Beauty in Computational Linguistics - Invited Talk by Verónica Dahl

12:20 - 14:10

Lunch break

Adam Mickiewicz University Library - 38/40 Ratajczaka Street

14:10 - 15:30

Sentiment Analysis

Information retrival/Information extraction 1


15:30 - 16:00

Coffee break

16:00 - 16:40

Addressing the Language Resource Gap through Alternative Incentives, Workforces and Workflows - Invited Talk by Chris Cieri

16:45 - 18:25

Emotions, Decisions, Opinions Workshop (EDO)

Alain Colmerauer Special Session

Day 2, Saturday, November 18, 2017
University Library

8:20 - 9:40

Language resources and
tools 1

Information retrival/Information extraction 2

Computational semantics 1

9:40 - 10:40

POSTERS/DEMOS session & coffee

10:40 - 11:20

A Second Life for Prolog -Invited Talk by Jan Wielemaker

11:25 - 12:25

Text annotation/normalization


Machine Translation

12:30 - 13:30

Presentation by the LTC sponsor: The Amazon Development Center

13:30 - 15:15

Lunch break

15:15 - 15:55

The Impact of Neural Networks on Language Technologies a Case Study on Machine Translation - Invited Talk by Joseph van Genabith

15:55 - 16:25

Coffee break

16:25 - 17:45

Language resources and
tools 2

LRL Workshop 1

Speech 1

17:50 - 19:10

A Second Life for Prolog Tutorial (1) - by Jan Wielemaker

LRL Workshop 2

Text analysis

20:30 - 00:00

Conference Gala Dinner

Day 3, Sunday, November 19, 2017
University Library

8:00 - 10:00

Second Life for Prolog Tutorial (2) - by Jan Wielemaker

PolEval Workshop (1)

Computational semantics 2

10:00 - 10:30

Coffee break

10:30 - 11:45

Presentation by the LTC sponsor: Samsung Poland R&D Institute

11:45 - 12:45

Panel discussion

12:45 - 14:15

Lunch break

14:15 - 15:35

Language Resources and
Tools 3

PolEval Workshop (2)

Speech 2

15:40 - 16:00

Closure session


SESSION Sentiment Analysis, Day 1, 14:10 - 15:30
Omar El-Begawy, Robin Wikström and Hannu ToivonenSentiment Analysis of Customer Feedback in the Business Domain
Arina ReshetnikovaOpinion Holder & Object Extraction in Sentiment Analysis of Russian Texts
Aidan Connelly, Victor Kuri and Marco PalominoLack of consensus among sentiment analysis tools: A suitability study for SME firms
Tamara Álvarez-López, Milagros Fernández-Gavilanes, Enrique Costa-Montenegro, Jonathan Juncal-Martínez, Silvia García-Méndez and Patrice BellotA Book Reviews Dataset for Aspect Based Sentiment Analysis

SESSION Information Retrival/Information Extraction 1, Day 1, 14:10 - 15:30
Isabel Moreno, M. Teresa Romá-Ferri and Paloma MoredaCombining Profiles and Local Information for Named Entity Classification: Adjustment of a Domain and Language Independent Approach
Kazuya Shimura and Fumiyo FukumotoTitle Categorization based on Category Granularity
Julia Dembowski, Michael Wiegand and Dietrich KlakowLanguage Independent Named Entity Recognition using Distant Supervision
Cécile Robin, James O ' Neill and Paul BuitelaarAutomatic Taxonomy Generation: A Use-Case in the Legal Domain

SESSION Morphology, Day 1, 14:10 - 15:30
Rashel Fam and Yves LepageA holistic approach to a morphological inflection task
Irina Illina and Dominique FohrOut-of-Vocabulary Word Probability Estimation using RNN Language Model
Zbigniew KaletaAutomatic Pairing of Perfective and Imperfective Verbs in Polish

SESSION Alain Colmerauer Special Session, Day 1, 16:45 - 18:25
Grzegorz J Nalepa, Szymon Bobek, Mateusz Ślażyński and Krzysztof KuttKnowledge and Software Engineering with Prolog
Irene Rodrigues, Daniel Diaz and Salvador AbreuCLP(FD)-based Information Systems in Space Management Optimization
Dietmar Seipel, Falco Nogatz and Salvador AbreuProlog for Expert Knowledge Using Domain-Specific and Controlled Natural Languages
Adam MeissnerLogic Programming and Lean Reasoning Systems

SESSION Language Resources and Tools 1, Day 2, 8:20 - 9:40
Krzysztof Jassem and Paweł SkórzewskiProcessing historical texts with contemporary NLP tools
Balázs IndigMosaic n-grams: Avoiding combinatorial explosion in corpus pattern mining for agglutinative languages
Marcin Woliński, Witold Kieraś and Dorota KomosińskaAnotatornia 2 – an annotation tool geared towards historical corpora
Filip Graliński(Temporal) Language Models as a Competitive Challenge

SESSION Information Retrival/Information Extraction 2, Day 2, 8:20 - 9:40
Ahmad AghaebrahimianHybrid Deep Open-Domain Question Answering
Fabrizio Ghigi, Diana Turcsany, Thomas Kaltenbrunner and Maurizio CibelliSentence Answer Selection for Open Domain Question Answering via Deep Word Matching
Attaporn Wangpoonsarp and Fumiyo FukumotoIdentification of Domain-Specific Senses based on Word Embedding Learning
Cvetana Krstev, Dusko Vitas, Miloš Utvić and Branislava ŠandrihThe New Clothes for an Old Cookbook

SESSION Computational Semantics 1, Day 2, 8:20 - 9:40
Efe Arin, Ugur Gudelek and Murat OzbayogluQuora Duplicate
Iuliia Romaniuk, Nina Suszczanska and Przemyslaw SzmalInterpreting Syntactic Relations in Attributive Groups
Arkadiusz Janz, Jan Kocoń, Maciej Piasecki and Monika Zaśko-ZielińskaplWordNet as a Basis for Large Emotive Lexicons of Polish
Zdenka Uresova, Eva Fučíková, Eva Hajicova and Jan HajicSyntactic-Semantic Classes of Context-Sensitive Synonyms Based on a Bilingual Corpus

SESSION Text Annotation/Normalization, Day 2, 11:25 - 12:25
Ekin Ekinci, Sevinc Ilhan Omurca and Hazal TurkmenDetermining Multi Word Aspects by Using Apriori Algorithm and Syntactic Rules for Turkish Hotel Reviews
Sara Meftah, Nasredine Semmar, Fatiha Sadat and Othman ZennakiUsing Transfer Learning in Part-Of-Speech Tagging of English Tweets
Krzysztof Jassem, Filip Graliński and Tomasz ObrebskiPros and Cons of Normalizing Text with Thrax

SESSION Applications, Day 2, 11:25 - 12:25
Elena Arsevska, Sylvain Falala, Jocelyn de Goër de Hervé, Renaud Lancelot, Julien Rabatel and Mathieu RochePADI-web: Platform for Automated Extraction of Animal Disease Information from the Web
Peter Viszlay, Ján Staš, Martin Lojka, Jozef Greššák, Jozef Juhár and Slavomír GeregMulti-Conditionally Trained ASR System for Reverberant Speech Captured by Spherical Microphone Array in Adverse Acoustic Conditions
Jolanta Bachan, Mariusz Owsianny and Grażyna DemenkoCreation of a Dialogue Corpus for Automatic Analysis of Phonetic Convergence

SESSION Machine Translation, Day 2, 11:25 - 12:25
Davood Mohammadifar and Gholamreza Ghassem SaniEffects of Pre- and Post-Processing on Persian to English SMT
Violaine PrinceAn Empirical Study for a Machine Aided Translation of French Prepositions ’a`’, ’de’ and ’en’ into English
Patrycja ŚwieczkowskaTowards a direct Japanese-Polish machine translation system

SESSION Language Resources and Tools 2, Day 2, 16:25 - 17:45
Mika Koistinen, Kimmo Kettunen and Jukka KervinenHow to Improve Optical Character Recognition of Finnish Historical Newspapers Using Open Source Tesseract OCR Engine
Manpreet Singh Lehal, Dr. Ajit Kumar and Dr. Vishal GoyalReview of Techniques for Extraction of Bilingual Lexicon from Comparable Corpora
Filip Graliński, Rafał Jaworski and Piotr WierzchońTowards Automatic Detection of Correct Domain Words in OCR Texts from Polish Digital Libraries
Marcin Pol, Tomasz Walkowiak and Maciej PiaseckiProcessing, Analysing and Visualising Language Data using solutions prepared in CLARIN-PL LTC

SESSION Speech 1, Day 2, 16:25 - 17:45
Jolanta Bachan and Marceli TokarskiCreation and evaluation of MaryTTS speech synthesis for Polish
Anita Lorenc, Katarzyna Klessa and Daniel KrólThe structure of Polish nasalized vowels: results based on spatial energy distribution and formant frequency analysis
Amal Houidhek, Vincent Colotte, Zied Mnasri, Denis Jouvet and Imene ZangarStatistical modelling of speech units in HMM-based speech synthesis for Arabic

SESSION Text Analysis, Day 2, 17:50 - 19:10
Lena K. Schiffer, Uwe Quasthoff and Lydia MüllerSyntactic Sentence Simplification and Sentence Compression for German
Yoshimi Suzuki and Fumiyo FukumotoExtraction of Writer's Insistence in Editorial Article
Marta Vicente and Elena LloretAnalysing Positional Language Models for Natural Language Generation

SESSION Computational Semantics 2, Day 3, 8:00 - 9:00
Alina Wróblewska, Katarzyna Krasnowska-Kieraś and Piotr RybakTowards the evaluation of feature embedding models of the fusional languages
Finn Årup Nielsen and Lars Kai HansenOpen semantic analysis: The case of word level semantics in Danish
Tomasz BartosiakShared forest representation of predicate-argument structures for shared syntactic forests

SESSION Language Resources and Tools 3, Day 3, 14:15 - 15:35
Shahin Salavati and Sina AhmadiBuilding a Lemmatizer and a Spell-checker for Sorani Kurdish
Jasur Isroilov and Tomasz JastrząbPersonal names spell-checking -- a study related to Uzbek
Lars Hellan, Dorothee Beermann, Tore Bruland, Tormod Haugland and Elias AamotCreating a Norwegian valence corpus from a deep grammar

SESSION Speech 2, Day 3, 14:15 - 15:35
Nnamso Umoh, Chukwudi Nwokoro, Samuel Oyong, Susan Lindsy, Etim Ekong, Moses Ekpenyong and Pius EjodamenSpeech Emotion Classification of African Tone Languages
Swaran Lata, Raghu Arora and Bhavna ThakurAcoustic study of Tone and Lexical Stress Interaction in Punjabi
Brigitte Bigi, Bernard Caron and Abiola OyelereDeveloping Resources for Automated Speech Processing of the African Language Naija (Nigerian Pidgin)

SESSION Posters/Demos, Day 2, 9:40 - 10:40
Zygmunt Vetulani, Marta Witkowska and Umut CanbolatA New Tool for Quality Control of Text Corpora - DEMO
Amin Rahmani, Mohammad Reza Falahati and Mohammd Bagher DastgheibRICeSTQUTranslate: A suggestion oriented machine translation system for English-Persian cross-lingual information retrieval in medical domain
Katarzyna Klessa and Bożena Niećko-Bukowska“Axio” Speech Corpus: design, structure, and preliminary analyses
Dawid Wiśniewski, Jędrzej Potoniec and Agnieszka LawrynowiczTranslating competency questions to simple SPARQL-OWL
Tugba Yildiz, Savas Yildirim and Ozge SamliQuestion Classification via Deep Neural Networks
Andrzej ZydrońBeyond Neural MT
Apichai Chan-Udom, Karman Chan and Yoshimi SuzukiDetection of new words and their senses in Twitter data using Wikipedia
Magdalena WierciochImproving adverse drug reaction detection with models combination
Adrianna JanikMorphosyntactic disambiguer - Poleval 2017
Janusz Taborek and Michał PasternakGerman evaluative adjectives. Semi-automatic analysis of hotel reviews
Andrzej Zydroń and Qun LiuCalculating the Percentage Reduction in Translator Effort when using Machine Translation
Arina ReshetnikovaOpinion Holder & Object Extraction in Sentiment Analysis of Russian Texts DEMO
Lars Hellan, Dorothee Beermann, Tore Bruland, Tormod Haugland and Elias AamotCreating a Norwegian valence corpus from a deep grammar DEMO
Tomasz Walkowiak, Marcin Pol and Maciej PiaseckiDemo/poster abstract for Processing, Analysing and Visualising Language Data using solutions prepared in CLARIN-PL LTC
Maciej Piasecki, Agnieszka Dziob, Monika Zaśko-Zielińska, Tomasz Naskręt and Ewa RudnickaplWordNet 3.0 emo and WordNetLoom editor
Zygmunt Vetulani, Jacek Martinek and Marek KubisThe Adventure with Prolog at Adam Mickiewicz University in Poznań – Selected Examples

SESSION EDO, Day 1, 16:45 - 18:25
Michal Ptaszynski, Rafal Rzepka and Pawel DybalaIntroduction
Patrick Paroubek and Anna KorolevaOn the contribution of comparatives to automatic spin detection in biomedical scientific publications
Naoto Ishii, Fumito Masui and Michal PtaszynskiCan one emoticon say a thousand words?: Automatic estimation of meaning ambiguity of emoticons based on linguistic expressibility
Joji Uemura, Kazuya Mera, Yoshiaki Kurosawa and Toshiyuki TakezawaSuppressed Negative-Emotion-Detecting Method by using Transitions in Facial Expressions and Acoustic Features
Liam Watson, Barry Devereux and Brian MurphyLong distance history influences sentence valence in narrative texts
Michal Ptaszynski, Fumito Masui, Arkadiusz Janz, Jan Kocoń, Maciej Piasecki, Monika Zaśko-Zielińska and Pawel DybalaThree attempts in PolEval 2017 Sentiment Analysis Task
Michal Ptaszynski, Rafal Rzepka and Pawel DybalaWorkshop Summary and Conclusions

SESSION LRL 1, Day 2, 16:25 - 17:45
Delyth Prys, Dewi Bryn Jones and Stefano GhazzaliUsing LT tools in classroom and coding club activities to help LRLs
Jamison Cooper-Leavitt, Lori Lamel, Gilles Adda, Martine Adda-Decker and Annie RiallandCorpus base linguistic exploration via forced alignments with a ‘light-weight’ ASR tool
Karol Nowakowski, Michal Ptaszynski and Fumito MasuiImproving tokenization, transcription normalization and part-of-spoeech tagging of Ainu language through merging multiple dictionaries
Irakli Tsikarishvili, Krzysztof Jassem, Ioseb Otskheli and Urszula BoryczkaOn the development of NLP tools for the Georgian language

SESSION LRL 2, Day 2, 17:50 - 19:10
Ngoc Tan Le and Fatiha SadatA neural network architecture for low-resource machine transliteration
Krzysztof Stronski and Rafal JaworskiAutomatic converb detection in early Braj
Rafal Jaworski, Sanja Seljan and Ivan DunderToward educating and motivating the crowd - a crowdsourcing platform for harvesting the fruits of NLP students’ labour

SESSION PolEval 1, Day 3, 8:00 - 10:00
Łukasz Kobyliński and Maciej OgrodniczukResults of the PolEval 2017 Competition: Part-of-Speech Tagging Shared Task
Krzysztof WróbelKRNNT: Polish Recurrent Neural Network Tagger
Piotr Pęzik and Sebastian LaskowskiEvaluating an averaged perceptron morphosyntactic tagger for Polish
Paweł Rychlikowski, Michał Zapotoczny and Jan ChorowskiCharacter-Based Neural POS Tagger
Maciej Piasecki and Wiktor WalentynowiczMorphoDiTa-based Tagger Addapted to the Polish Language Technology
Katarzyna Krasnowska-KieraśMorphosyntactic disambiguation for Polish with bi-LSTM neural networks

SESSION PolEval 2, Day 3, 14:15 - 15:35
Aleksander Wawer and Maciej OgrodniczukResults of the PolEval 2017 Competition: Sentiment Analysis Shared Task
Norbert RyciakPolish Language Sentiment Analysis with Tree-Structured Long Short-Term Memory Network
Michał Lew and Piotr PęzikA Sequential Child-Combination Tree-LSTM Network for Sentiment Analysis
Tomasz Korbak and Paulina ŻakFine-tuning Tree-LSTM for phrase-level sentiment classification on a Polish dependency treebank. Submission to PolEval task 2

The Second Workshop on Processing Emotions, Decisions and Opinions (EDO 2017)

EDO Workshop paper submission deadline : September 25, 2017.

Acceptance/rejection notification: October 10, 2017.
Final version submission deadline (camera ready): October 23, 2017.
Conference/Workshop dates: November 17-19, 2017 (half-day, afternoon)

Topics of interest include, but are not limited to:
• Affect Analysis (and its applications)
• Cognitive aspects of decisions and opinions
• Decisions and NLP
• Ethics and NLP
• Knowledge acquisition
• Opinion Mining
• Pragmatics of decision making
• Preference models
• Recommendation Systems
• Sentiment Analysis
• Social Informatics
• Text mining techniques

The access to the program of both the main conference and the workshops (as well as the social program) is the same for all LTC/EDO participants.

Michał Ptaszyński, (Kitami Institute of Technology, Japan)
Rafał Rzepka, (Hokkaido University, Japan)
(Hokkaido University, Japan)
Paweł Dybała, (Jagiellonian University, Poland)

Program Committee
Alladin Ayesh, (De Montfort University, UK)
Karen Fort, (Sorbonne, France)
Dai Hasegawa, (Aoyama Gakuin University, Japan)
Magdalena Igras-Cybulska, (AGH, Poland) • Yasutomo Kimura, (Otaru University of Commerce, Japan)
Paweł Lubarski, (Poznań University of Technology, Poland) • Fumito Masui, (Kitami Institute of Technology, Japan)
Mikołaj Morzy, (Poznań University of Technology, Poland)
Koji Murakami, (Rakuten, USA)
Noriyuki Okumura, (National Institute of Technology, Akashi College, Japan) • Michał B. Paradowski, (University of Warsaw) • Tyson Roberts, (Google, Japan)
Marcin Skowron, (Johannes Kepler University, Austria)
Yuzu Uchida (Hokkai-gakuen University, Japan)
Zygmunt Vetulani (Adam Mickiewicz University, Poland)
Katarzyna Węgrzyn-Wolska (Efrei/Esigetel, France)
Adam Wierzbicki (Polish-Japanese Institute of Information Technology, Poland)
Bartosz Ziółko (AGH, Poland)


Inscription procedure: as for the general LTC (+ cc to workshop chairs)

Fees: The EDO Workshop is an integral part of the LTC (with autonomous Program Committee). Fees and payment procedures are the same as for LTC and cover participation in the general program. Free for participants registered to the general LTC. Single registration covers only one paper presentation (cf. the Publication Policy section).

The EDO Workshop accepts papers in English only. Submitted texts should not disclose the author(s) in any manner. Format and templates are the same as for the general LTC (see the Paper Submission Section; above). Papers should be submitted using EasyChair exactly as for the general LTC but copies should also be sent to the EDO Workshop ) organizers i.e. to: Kenji Araki and Paweł Dybała. Please also put "EDO 2015 submission" as Subject of your mail and "EDO" as a key word (both in the EasyChair form and in the paper itself).

Presentation: publication in the LTC proceedings (paper + CD)

More about EDO 2017: cf. (the access to the program of both the main conference and the workshop (as well as the social program) is the same for all LTC/EDO participants).

The 5th LRL Workshop (a Joint LTC-ELRA-FLaReNet-META_NET Workshop on Less-Resourced Languages): "Language Technology for Less Resourced Languages"

Girish Nath Jha (JNU, India)
Claudia Soria (CNR-ILC, Italy)

Papers submission deadline : September 25, 2017.
Workshop dates: November 17-19, 2017.
Deadline for submission of camera-ready final versions of the accepted papers: October 23, 2017.

See also the 5th LRL website.

Theme and Motivation

The rapid growth of language technology has created a new challenge for many languages of the world today. While for some, this can take the shape of a positive competition among the stake holders, for others it can push them further down in the race towards endangerment and extinction. The LT-LRL Workshop is an attempt to bring together all stake holders, users, developers, researchers, language activists, policy makers on a single platform and discuss how resources, policies, standards could be developed for these languages so that they can develop technologies to enable themselves in the digital age. We will particularly welcome contributions addressing the following issues:

1) LRL: charting the field - what do we know about currently available LTs for LRLs? What is the current status of language technologies and use of LRLs in the digital and social media environments? How to draw a comprehensive and accurate picture and create a road map for future? Who are the actors to be involved? What is the experience of researchers and developers?

2) LRL: Resource development - how are the LRLs dealing with resource crunch, creation and related issues of standards, IDEs and platforms, funding, usability, sharing etc? What are the perceptions and roles of various stake holders including the governments, industry and language communities? What are the additional challenges posed by multilingual societies? What are the language preservation strategies for LRLs in the digital age?

3) LRL : technology development - challenges in the development of specific enabling technologies for LRLs at language, speech and multi-modal levels. How are these technologies used in areas such as communication, education, entertainment, health, administration. governance etc?

Fees: LRL is an integral part of the LTC (with autonomous Program Committee). Fees and payment procedures are the same for general LTC and worshop participants (cover participation in the general LTC program). Notice: the workshop is free for participants registered to the general LTC. Single registration covers only one paper presentation (general LTC or workshops) (cf. the Publication Policy section in case of more than one submitted paper).

See the LRL web site: the 5th LRL website.

The papers accepted for LRL 2017 will be published in the LTC Proceedings (hard copy, with ISBN number) and on CD-ROM. After the Workshop, a selection of the best papers will be published together with best LTC papers in a dedicated volume in the Springer Series Lecture Notes in Artificial Intelligence.

Reviewing and acceptance: on the ground of blind reviewing

More LRL participation details: cf. also the general program (the access to the program of both the main conference and the workshop (as well as the social program) is the same for all LTC/LRL participants).

PolEval 2017: Evaluation Campaign for NLP Tools for Polish

PolEval Organizing Committee

Maciej Ogrodniczuk (Institute of Computer Science, Polish Academy of Sciences)
Łukasz Kobyliński (Institute of Computer Science, Polish Academy of Sciences / Sages)
Aleksander Wawer (Institute of Computer Science, Polish Academy of Sciences)

Theme and Motivation

PolEval is a SemEval-inspired evaluation campaign for natural language processing tools for Polish. Submitted tools compete against one another within certain tasks selected by organisers, using available data and are evaluated according to pre-established procedures. PolEval 2017-related papers will be presented at a special session during LTC 2017.

Details can be found at the PolEval 2017 website.

Task 1: POS Tagging

There is an ongoing discussion whether the problem of part of speech tagging is already solved, at least for English, by reaching the tagging error rates similar or lower than the human inter-annotator agreement, which is ca. 97%. In the case of languages with rich morphology, such as Polish, there is however no doubt that the accuracies of around 91% delivered by taggers leave much to be desired and more work is needed to proclaim this task as solved. The aim of this proposed task is therefore to stimulate research in potentially new approaches to the problem of POS tagging of Polish, which will allow to close the gap between the tagging accuracy of systems available for English and languages with rich morphology.

Registered systems compete in three settings:

Subtask (A): Morphosyntactic disambiguation and guessing: Given a sequence of segments, each with a set of possible morphosyntactic interpretations, the goal of the task is to select the correct interpretation for each of the segments and provide an interpretation for segments for which only 'ign' interpretation has been given (segments unknown to the morphosyntactic dictionary).
Subtask (B): Lemmatisation: Given a sequence of segments, each with a set of possible morphosyntactic interpretations, the goal of the task is to select the correct lemma for each of the segments and provide a lemma for segments for which only 'ign' interpretation has been given (segments unknown to the morphosyntactic dictionary).
Complete system (C): POS tagging: Given a raw text in Polish, the goal of the task is to segment the text by separating individual flexemes and provide the correct lemma and POS tag for each of the segments.

Task 2: Sentiment analysis

Sentiment analysis is a vital research area, approached at different levels: phrase-level (either in the context of opinion targets/aspects or phrases defined as syntactic sub-trees), sentence-level (related to the task of tweet-level analysis). The aim of this task is to promote research on this topic in the context of the Polish language, provide reference data sets to work and motivation for potentially new methods.

The systems compete in one setting: Given a set of syntactic dependency trees, the goal of the task is to provide the correct sentiment for each sub-tree (phrase). Phrases correspond to sub-trees of dependency parse tree. The annotations assign sentiment values to whole phrases (and in some cases, sentences), regardless of their type.

Important Dates

September 25, 2017: Deadline for submission of papers for review
October 16, 2017: Acceptance/Refusal notification
October 23, 2017: Deadline for submission of final versions of accepted papers
November 17-19, 2017: Conference

Presentation of results

All accepted system descriptions, following the LTC 2017-compatible review process (in a special track and with a special deadline set to end of August) will be published in the conference proceedings provided the author registers to the conference under standard LTC conditions. Extended versions of best papers from each main track will be recommended for publication in the post-conference Springer's LNAI volume (subject to additional rounds of reviews).


LTC 2017 is located in the Adam Mickiewicz University Library (Biblioteka Uniwersytecka), ul. Ratajczaka 38/40, 61-816 Poznań.

Conference opening session on Nov. 17, 11 a.m. will take place in Collegium Maius (ul. Fredry 10, 7 min. walk from the conference location).

Registration desk will be set in the University Library (opening on Nov. 17, 8 am).
Collegium Maius
Collegium Maius, Opening Session
ul. Fredry 10
UAM Library
Adam Mickiewicz University Library, Conference place
ul. Ratajczaka 38/40

(click the map to see better)

How to get from the University Liberary to Collegium Maius?


As at the 2nd, 3rd, 4th, 5th, 6th and 7th Language and Technology Conferences (2005, 2007, 2009, 2011, 2013,2015) special awards will be granted to the best student papers. The regular or PhD students (on the date of paper submission) are concerned. Co-authored papers will be considered provided that the students' contributions exceeds 60% and that the main author(s) is (are) student(s)(this fact must be documented by a written declaration signed by all co-authors).

In 2005 the Jury, composed of the Program Committee members participating in the conference, awarded this distinction to: Ronny Melz (University of Leipzig), Hartwig Holzapfel (University of Karlsruhe), Marcin Woliński (IPI PAN, Warsaw) (picture at LTC 2011).

In 2007 the award for the best student paper was granted to Darja Fišer (University of Ljubljana).

In 2009 two awards were granted: to Mahmoud EL-Haj (University of Essex, UK) (left) and Alexander Pak (LIMSI-CNRS, Orsay, France) (right).

In 2011 the Jury decided to award three student contributions: Narayan Choudhary (Jawaharlal Nehru University, New Delhi, India)(left), Moses Ekpenyong (University of Uyo, Nigeria)(middle) and Marek Kubis (Adam Mickiewicz University in Poznań, Poland) (right).

In 2013 the Jury decided to award: Dominika Rogozińska, IPI PAN Warszawa, Juan Luo (left picture), Waseda University, Japan, and Matea Srebačić (right picture), University of Zagreb, Croatia.

In 2015 the Jury decided to award: Keith Lia (left picture), University of Copenhagen, Denmark, Marzieh Razavi (middle picture), Idiap Research Institute, Martigny, Switzerland, and Zijian Győző Yang (right picture), Pázmány Péter Catholic University, Hungary.

Notice. Pictures are clickable.


This site is in progress. Further important practical information will be published shortly. Please consult this site again from time to time.


Students interested in joining our team of volunteers at the conference are kindly asked to send an email to (cc: Please use LTC2017-Volunteer as a subject of your message.

CITY OF POZNAŃ (last updated: 2017-03-15)