Call for Papers

The 1st Conference of the Asia-Pacific Chapter of the Association for Computational Linguistics and the 10th International Joint Conference on Natural Language Processing (AACL-IJCNLP 2020) will be held as a virtual conference from December 4th to December 7th, 2020. The organization committee from Soochow University will work with Program Chairs and Remote Presentation Chairs to promote a stimulating and lively experience. The conference invites the submission of long and short papers on substantial, original, and unpublished research in all aspects of natural language processing. Accepted papers will be presented as oral talks or posters.

AACL-IJCNLP 2020 has a goal of a diverse technical program. In addition to traditional research results, papers may present negative findings, survey an area, announce the creation of a new resource, argue a position, and report novel linguistic insights. All accepted papers must be presented at the conference to appear in the proceedings. At least one author of each accepted paper must register for AACL-IJCNLP 2020 by the early registration deadline.


AACL-IJCNLP 2020 has the goal of a broad technical program. Relevant topics for the conference include, but are not limited to, the following areas (in alphabetical order):

  • Dialog and Interactive Systems
  • Discourse and Pragmatics
  • Information Extraction and Text Mining
  • Information Retrieval and Document Analysis
  • Knowledge Graph
  • Lexical Semantics
  • Linguistic Theories, Cognitive Modeling and Psycholinguistics
  • Machine Learning for NLP
  • Machine Translation and Multilinguality
  • NLP Applications
  • Phonology, Morphology and Word Segmentation
  • Question Answering
  • Resources and Evaluation
  • Semantics
  • Sentiment Analysis and Argument Mining
  • Social Media and Computational Social Science
  • Speech, Vision, Robotics, Multimodal Grounding
  • Summarization and Generation
  • Tagging, Chunking, Syntax and Parsing
  • Textual Inference and Other Areas of Semantics

Important Dates

Anonymity period begins Tuesday May 26, 2020
Submission due (long & short) Friday June 26, 2020
Notification of acceptance Friday Sept 11, 2020
Camera ready papers due Monday Oct 5, 2020

Note: All deadlines are 11:59PM UTC-12:00

Paper Submission Information

AACL-IJCNLP 2020 uses a double-blind review process. Each submission will be reviewed by at least three program committee members.

Long papers

Long AACL-IJCNLP 2020 submissions must describe substantial, original, completed and unpublished work. Wherever appropriate, concrete evaluation and analysis should be included. Review forms will be made available prior to the deadlines.

Each Long paper submission may consist of up to eight (8) pages of content, plus unlimited pages for references; final versions of long papers will be given one additional page of content (up to 9 pages) so that reviewers’ comments can be taken into account.

Long papers will be presented orally or as posters as determined by the program committee. The decisions as to which papers will be presented orally and which as poster presentations will be based on the nature rather than the quality of the work. There will be no distinction in the proceedings between long papers presented orally and as posters.

Short papers

AACL-IJCNLP 2020 also solicits short papers. Short paper submissions must describe original and unpublished work. Please note that a short paper is not a shortened long paper. Instead short papers should have a point that can be made in a few pages. Some kinds of short papers are:

  • A small, focused contribution
  • Work in progress
  • A negative result
  • An opinion piece
  • An interesting application nugget

Each Short paper may consist of up to four (4) pages of content, plus unlimited pages for references. Final versions of short papers will be given one additional page of content (up to 5 pages of content). Authors are encouraged to use this additional page to address reviewers’ comments in their final versions.

Short papers will be presented in one or more oral or poster sessions. While short papers will be distinguished from long papers in the proceedings, there will be no distinction in the proceedings between short papers presented orally and as posters.

IMPORTANT: Anonymity Period

AACL-IJCNLP 2020 adopts ACL’s new policies for submission, review, and citation. Submissions that violate any of these policies will be rejected without review.

Most importantly, the policies define an anonymity period, which starts on May 26, 2020 (11:59pm PDT) and end on Sept 11, 2020.

If you have posted a non-anonymized version of your paper online before the start of the anonymity period, you may submit an anonymized version to the conference. The submitted version must not refer to the non-anonymized version, and you must inform the program chair(s) that a non-anonymized version exists. During the anonymity period, you may not update a non-anonymized version, advertise an anonymized or non-anonymized version on social media, or take any other action that would compromise double-blind reviewing during the anonymity period.

Paper Submission and Templates

Submission is electronic, using the Softconf START conference management system. The submission site is now available at

Long/short paper submissions must use the official AACL-IJCNLP 2020 style templates. Long papers must not exceed eight (8) pages of content. Short papers must not exceed four (4) pages of content. References do not count against these limits.

Download LaTeX files

Download Microsoft Word files

Overleaf Template

Note: The supplementary material does not count towards page limit and should not be included in paper, but should be submitted separately using the appropriate field on the submission website.

All submissions must be in PDF format and must conform to the official style guidelines, which are contained in the template files that will become available on the conference website shortly.

Submissions will be distributed or shared only for the purpose of (1) peer review; (2) checking compliance with the policies of the ACL, ACL-sponsored conferences, ACL-sponsored journals, or other ACL-sponsored organizations (such as workshops) regarding multiple submissions or resubmissions; and (3) investigating possible misconduct (such as plagiarism).

Instructions for Double-Blind Review

To ensure anonymity, submissions and supplementary materials must not include the authors’ names and affiliations. Furthermore, self-references that reveal the author’s identity, e.g., “We previously showed (Smith, 1991) …”, should be avoided. Instead, use citations such as “Smith (1991) previously showed …”. Acknowledgments of funding or assistance must also be omitted. Submissions should not contain pointers to supplemental information on the web; any such material should be submitted as supplementary materials. Submissions that do not conform to these requirements will be rejected without review.

Supplementary Materials: Appendices, Software and Data

Each AACL-IJCNLP 2020 submission can be accompanied by a single PDF appendix, one .tgz or .zip archive containing software, and one .tgz or .zip archive containing data.

AACL-IJCNLP 2020 encourages the submission of these supplementary materials to improve the reproducibility of results, and to enable authors to provide additional information that does not fit in the paper. For example, preprocessing decisions, model parameters, feature templates, lengthy proofs or derivations, pseudocode, sample system inputs/outputs, and other details that are necessary for the exact replication of the work described in the paper can be put into the appendix.

Nonetheless, the paper submissions need to remain fully self-contained. Although these supplementary material are available to reviewers, they are not asked to review or download them. If the pseudo-code or derivations or model specifications are an important part of the contribution, or if they are important for the reviewers to assess the technical correctness of the work, they should be a part of the main paper, and not appear in the appendix. Supplementary materials need to be fully anonymized to preserve the double-blind reviewing policy.

Multiple Submission Policy

Papers that have been or will be submitted to other meetings or publications must indicate this at submission time in the START submission form. Authors of papers accepted for presentation at AACL-IJCNLP 2020 must notify the program chairs by the camera-ready deadline as to whether the paper will be presented. We will not accept for publication or presentation the papers that overlap significantly in content or results with papers that will be (or have been) published elsewhere.

Authors submitting more than one paper to AACL-IJCNLP 2020 must ensure that submissions do not overlap significantly (>25%) with each other in content or results.

Contact Information


Program co-chairs
Kevin Knight (Didi Chuxing) Hua Wu (Baidu Inc.)

General chair
Kam-Fai Wong (The Chinese University of Hong Kong)