Aim and Topics
Important Dates
Sponsor
Conference Code of Conduct
Program Committee
Local Organizers
Contact
Websites of the past editions
LENLS1
LENLS2
LENLS3
LENLS4
LENLS5
LENLS6
LENLS7
LENLS8
LENLS9
LENLS10
LENLS11
LENLS12
LENLS13
LENLS14
LENLS15
LENLS16
LENLS17
LENLS18
LENLS19
LENLS20
Post-proceedings volumes
LENLS2 (2005)
LENLS3 (2006)
LENLS4 (2007)
LENLS5 (2008)
LENLS6 (2009)
LENLS7 (2010)
LENLS8 (2011)
LENLS9 (2012)
LENLS10 (2013)
LENLS11 (2014)
LENLS12 (2015)
LENLS13 (2016)
LENLS14 (2017)
LENLS15 (2018)
LENLS16 (2019)
LENLS17 (2020)
LENLS18 (2021)
LENLS19 (2022)

Logic and Engineering of Natural Language Semantics (LENLS21)

Venue(s):
Dates: November 28(Fri)-30(Sun), 2025
Chair:
  • David Y. Oshima (Nagoya University)
Co-chairs:
  • Daisuke Bekki (Ochanomizu University)
  • Koji Mineshima (Keio University)
Invited Speaker(s):
  • TBA (TBA)

Aim and topics

LENLS is an annual international conference on formal linguistics (i.e., syntax, semantics and pragmatics), computational linguistics, the philosophy of language, and related fields, including but not limited to the following:

  • Formal syntax, semantics and pragmatics of natural language
  • Model-theoretic and/or proof-theoretic semantics of natural language
  • Computational approaches to semantics and pragmatics
  • Nonclassical logic and its relation to natural language (e.g. substructural, fuzzy, categorical, and topological logic)
  • Formal philosophy of language
  • Scientific methodology and/or experimental design in linguistics

LENLS21 is scheduled to take place in a in-person format (with a physical presence in Nagoya), but with a limited option for a virtual presence via zoom.

Important dates:

Abstract submission deadline:Aug. 31, 2025
Notification of acceptance:Oct. 1, 2025
Deadline for early registration:Oct. 15, 2025
Deadline for the revised abstract:Nov. 15, 2025
LENLS20:Nov. 28-30, 2025
Deadline for full papers:Dec. 15, 2025

Sponsor

LENLS is being organized by an alliance of "AI systems that can explain by language based on knowledge and reasoning" project (Grant Number JPMJCR20D2), funded by JST CREST Programs "Core technologies for trusted quality AI systems." LENLS 20 is co-organized by Nagoya University.

Conference Code of Conduct

All attendees, speakers, sponsors and volunteers at our conference are required to adhire to 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 everyone.

The Quick Version

The organizers are 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, and social media. Conference participants violating these rules may be sanctioned or expelled from the conference without a refund at the discretion of the 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, and religion (or lack thereof), as well as 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 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 without a refund.

If you experience harassment, notice that someone else is being harassed, or have any other concerns, please contact the following conference staff members immediately: Elin McCready and Daisuke Bekki

THe 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 as well as conference-related social events.

Program Committee:

  • David Y. Oshima (Nagoya University)
  • Daisuke Bekki (Ochanomizu University)
  • Koji Mineshima (Keio University)

Local Organizers:

  • David Y. Oshima (Nagoya University)

Contact:

lenls21[[at]]easychair.org