Aim and Topics
Important Dates
Conference Code of Conduct
Organizing Committee

Logic and Engineering of Natural Language Semantics 18 (LENLS18)

**Online** only
Dates: November 13(Sat), 14(Sun), and 15(Mon), 2021
  • Alastair Butler (Hirosaki University)
  • Daisuke Bekki (Ochanomizu University)
  • Koji Mineshima (Keio University)
  • Elin McCready (Aoyama Gakuin University)
Invited Speakers:
  • Maria Aloni (University of Amsterdam)
  • Michael Wayne Goodman (Nanyang Technological University)
  • Atsushi Shimojima (Doshisha University)

Aim and Topics

LENLS is an annual international workshop on formal syntax, semantics and pragmatics. It will be held as one of the workshops of the JSAI International Symposia on AI (JSAI-isAI2021) sponsored by the Japan Society for Artificial Intelligence (JSAI).

Note that LENLS 18 attendance has changed to being **Online** only. Plans for having a physical presence option for attendance have been abandoned in line with the decision made by the organisers of JSAI-isAI2021 to hold the Symposia online only.

We invite submissions to this year's workshop on topics in formal syntax, semantics and pragmatics, and related fields, including but in no way limited to the following:

  • Formal syntax, semantics and pragmatics of natural language
  • Model-theoretic and/or proof-theoretic semantics of natural language
  • Computational Semantics
  • Game-theoretic/Bayesian approaches to pragmatics
  • Nonclassical Logic and its relation to natural language (especially Substructural/Fuzzy/Categorical/Topological logics)
  • Formal Philosophy of language
  • Scientific methodology and/or experimental design for linguistics

Selected Papers

A selection of the accepted/invited full papers will be published as a portion of a volume "JSAI-isAI selected papers" from 'Lecture Notes in Artificial Intelligence (LNAI)' series (Springer Verlag).

Important dates:

Abstract submission deadline:September 5 (Sun), 2021 (extended)
Notification of acceptance:September 27 (Mon), 2021
Deadline for camera-ready copy:October 29, 2021, 23:59 (in JST)
Deadline for registration:November 12, 2021
LENLS18:November 13(Sat), 14(Sun), and 15(Mon), 2021


Please follow the link below and register yourself until November 12, 2021 (in JST).

The registration fee is free for JSAI members and 2,000 yen for non-JSAI members. Note that the zoom password of the workshop will be informed to the registered persons only.


Zoom URL:
Meeting ID: 839 9182 6690
Zoom password:(refer to the email sent from the registration system)

1st Day: November 13 (Sat)

9:50-10:00 Opening remark
10:00-11:00 Invited talk  (Chair: Alastair Butler)
  • Michael Wayne Goodman
  • "Old Dogs, New Tricks, and Semantics"
11:00-12:30 Session  (Chair: Naoya Fujikawa)
  • Ahmad Jabbar
  • "Pluralism for Relativists: a new framework for context dependence"
  • Shintaro Matsuura
  • "How to Explain the Mechanism of Metalinguistic Dispute"
  • Shuhei Shimamura
  • "Relevance as Minimality: A Logical Expressivist Approach"
14:30-16:00 Session  (Chair: Katsuhiko Sano)
  • Oleg Kiselyov and Haruki Watanabe
  • "QNP Textual Entailment with Polynomial Event Semantics"
  • Chenchen Song
  • "On the semantics of root syntax: challenges and directions"
  • Daisuke Bekki
  • "A Proof-theoretic Analysis of Weak Crossover"
16:30-17:30 Session  (Chair: Wataru Uegaki)
  • Kristina Liefke
  • "Remembering individuals and remembering scenes"
  • Kristina Liefke and Markus Werning
  • "Factivity variation in experiential 'remember'-reports"

2nd Day: November 14 (Sun)

10:00-11:00 Invited talk  (Chair: Koji Mineshima)
  • Atsushi Shimojima
  • "Proxy Logics: an Approach to Semantic Functions of Diagrams"
11:00-12:30 Session  (Chair: David Y. Oshima)
  • Muyi Yang
  • "Sensitive to future: the case of Japanese nara-conditionals"
  • Masaya Taniguchi and Satoshi Tojo
  • "Incremental derivations with Q combinator in CCG"
  • Satoru Suzuki
  • "Generics and Belief Contraction"
14:30-16:00 Session  (Chair: Yoshiki Mori)
  • Osamu Sawada
  • "Interpretations of sense-based minimizers in Japanese and English: Local and global sense-based measurements"
  • David Yoshikazu Oshima
  • "The semantics and pragmatics of the Japanese honorific titles san, kun, and chan"
  • Makoto Kaneko
  • "An analysis of a peculiar PPI licensing in French and Japanese negated purpose clauses in terms of an implicit externalization of the negation due to the non-responsibility"
16:30-17:30 Session  (Chair: Ribeka Tanaka)
  • Julian Grove and Jean-Philippe Bernardy
  • "Probabilistic compositional semantics, purely"
  • Fabio De Martin Polo
  • "A Cut-free Hypersequent Calculus for Intuitionistic Modal Logic IS5"

3rd Day: November 15 (Mon)

10:00-11:30 Session  (Chair: Osamu Sawada)
  • Mana Ishida, Hitomi Yanaka and Daisuke Bekki
  • "Compositional Semantics for Compound Words in Medical Case Retrieval"
  • Alastair Butler
  • "Parsed corpus development with a quick access interface"
  • Chungmin Lee
  • "Factivity in Chinese: Viewed from the Altaic Alternation Type"
13:30-15:00 Session  (Chair: Elin McCready)
  • Shun Ihara and Yuta Tatsumi
  • "The Duality of Negative Attitudes in Japanese Conditionals"
  • Joseph Tabolt
  • "Japanese Type-4 Verbs are Individual-level Predicates"
  • Eri Tanaka and Kenta Mizutani
  • "Presuppositions and Comparison Classes in Japanese hodo-equatives"
15:30-17:00 Session  (Chair: Yurie Hara)
  • Elin McCready
  • "Honorifics, Grounds and Ideologies"
  • Liping Tang
  • "Cheap talk under partial conflicts: a dynamic analysis of pragmatic meaning"
  • Ana Clara Polakof
  • "An experimental approach to slurs and swearwords in the Rio de la Plata"
17:00-18:00 Invited talk  (Chair: Alastair Butler)
  • Maria Aloni
  • "Logic and Conversation: neglect-zero effects at the semantics-pragmatics interface"
18:00-18:15 Closing remark

Conference Code of Conduct

All attendees, speakers, sponsors and volunteers at our conference are required to agree with the following code of conduct. Organisers will enforce this code throughout the event. We expect cooperation from all participants to help ensure a safe environment for everybody.

The Quick Version

Our conference is dedicated to providing a harassment-free conference experience for everyone, regardless of gender, gender identity and expression, age, sexual orientation, disability, physical appearance, body size, race, ethnicity, or religion (or lack thereof). We do not tolerate harassment of conference participants in any form. Sexual language and imagery is not appropriate for any conference venue, including talks, workshops, parties, Twitter and other online media. Conference participants violating these rules may be sanctioned or expelled from the conference without a refund at the discretion of the conference organisers.

The Less Quick Version

Harassment includes offensive verbal comments related to gender, gender identity and expression, age, sexual orientation, disability, physical appearance, body size, race, ethnicity, religion, sexual images in public spaces, deliberate intimidation, stalking, following, harassing photography or recording, sustained disruption of talks or other events, inappropriate physical contact, and unwelcome sexual attention.

Participants asked to stop any harassing behavior are expected to comply immediately.

If a participant engages in harassing behavior, the conference organisers may take any action they deem appropriate, including warning the offender or expulsion from the conference with no refund.

If you are being harassed, notice that someone else is being harassed, or have any other concerns, please contact the following member of conference staff immediately: Elin McCready / Daisuke Bekki

Conference staff will be happy to help participants contact hotel/venue security or local law enforcement, provide escorts, or otherwise assist those experiencing harassment to feel safe for the duration of the conference. We value your attendance.

We expect participants to follow these rules at conference and workshop venues and conference-related social events.

Organizing/Program Committee:

  • Daisuke Bekki (Ochanomizu University)
  • Alastair Butler (Hirosaki University)
  • Richard Dietz (University of Tokyo)
  • Patrick D. Elliott (Massachusetts Institute of Technology)
  • Naoya Fujikawa (University of Tokyo)
  • Yurie Hara (Hokkaido University)
  • Robert Henderson (University of Arizona)
  • Hitomi Hirayama (Kyushu Institute of Technology)
  • Magdalena Kaufmann (University of Connecticut)
  • Kristina Liefke (Ruhr University Bochum)
  • Koji Mineshima (Keio University)
  • Elin McCready (Aoyama Gakuin University)
  • Yoshiki Mori (University of Tokyo)
  • David Y. Oshima (Nagoya University)
  • Katsuhiko Sano (Hokkaido University)
  • Osamu Sawada (Kobe University)
  • Ribeka Tanaka (Ochanomizu University)
  • Wataru Uegaki (University of Edinburgh)
  • Katsuhiko Yabushita (Naruto University of Education)
  • Tomoyuki Yamada (Hokkaido University)
  • Shunsuke Yatabe (Kyoto University)
  • Kei Yoshimoto (Tohoku University)