*First Call for Papers*

TokShop: Second Tokenization Workshop (COLM 2026) 
https://tokenization-workshop.github.io

**Important days**

- Deadline for submissions is June 23, 2026, at 11:59 pm (anywhere on earth)
- Notifications of acceptance will be sent out on July 24, 2026
- Camera-ready papers will be due shortly afterward at 11:59 pm (anywhere on 
earth)

The workshop will take place at the Hilton Union Square in San Francisco, CA, 
USA on October 9, 2026.

***Workshop Description***

The Second Tokenization Workshop (TokShop) at COLM 2026 aims to bring together 
researchers and practitioners from across machine learning to explore 
tokenization in its broadest sense. We will discuss innovations, challenges, 
and future directions for tokenization across diverse data types and modalities.

***Call for Papers***

Topics of interest include:

- Subword Tokenization in NLP: Analysis of techniques such as BPE, WordPiece, 
and UnigramLM, as well as improvements for efficiency, interpretability, and 
adaptability.
- Multimodal Tokenization: Tokenization strategies for images, audio, video, 
and other modalities, including methods to align representations across 
different types of data.
- Multilingual Tokenization: Development of tokenizers that work robustly 
across languages and scripts, and investigation into failure modes tied to 
tokenization.
- Tokenizer Modification Post-Training: Methods for updating tokenizers after 
model training to boost performance and/or efficiency without retraining from 
scratch.
- Alternative Input Representations: Exploration of non-traditional 
tokenization approaches, such as byte-level, pixel-level, or patch-based 
representations.
- Statistical Perspectives on Tokenization: Empirical analysis of token 
distributions, compression properties, and correlations with model behavior.

By broadening the scope of tokenization research beyond language, this workshop 
seeks to foster cross-disciplinary dialogue and inspire new advances at the 
intersection of representation learning, data efficiency, and model design.


***Submission Guidelines***

Our author guidelines follow the COLM requirements unless otherwise specified.

- Paper submission is hosted on OpenReview: 
https://openreview.net/group?id=colmweb.org/COLM/2026/Workshop/TokShop#tab-your-consoles
 
- We accept non-archival submissions of two types:
    - Research papers (up to 9 pages, not including references or appendices)
    - Extended abstracts (up to 2 pages)
- Please use the provided LaTeX template (Style Files) for your submission. 
Please follow the general paper formatting guidelines for COLM, as specified in 
the style files.
- You may use as many pages of references and appendix as you wish, but 
reviewers are not required to read the appendix.
- Posting papers on preprint servers like ArXiv is permitted.
- We encourage each submission to discuss the limitations as well as ethical 
and societal implications of their work, wherever applicable (but neither are 
required). These sections do not count towards the page limit.
- The paper should be anonymized and uploaded to OpenReview as a single PDF.
- The review process will be double-blind.

Read more: https://tokenization-workshop.github.io/

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