Submission and Review Process


Long papers: 14 pages + references
Short papers: 7 pages + references

Late breaking results: Max 5 pages + 1 additional page for references
Demos presenting system prototypes or industry showcases: Max 5 pages + 1 additional page for references
Blue Sky papers: Max. 7 pages + 2 additional pages for references

Notes on length:

  • Appendices count toward the page limit
  • it is recommend that supplementary material is linked to an external source using an anonymised URL


Long papers should present original reports of substantive new research techniques, findings, and applications. They should place the work within the field and clearly indicate its innovative aspects. Research procedures and technical methods should be presented in sufficient detail to ensure scrutiny and reproducibility. Results should be clearly communicated and implications of the contributions/findings should be explicitly discussed.

Short papers should present original and highly promising research or applications. Merit will be assessed in terms of originality and importance rather than maturity, extensive technical validation, and user studies. Separation of long and short papers will be strictly enforced so papers will not compete across categories, but only within each category.


Papers must be formatted according to the new workflow for ACM publications. The templates and instructions are available here:

Authors should submit their papers as single-column. The templates are available here (using LaTeX for the camera-ready papers is highly recommended to minimize the extent of reformatting):

EasyChair Submission & Review Process:

Papers will be submitted through EasyChair: 

  • ACM HT’21 uses a double blind review process
  • Authors must omit their names and affiliations from submissions, and avoid obvious identifying statements. For instance, citations to the authors’ own prior work should be made in the third-person.


Accepted papers will require a further revision in order to meet the requirements and page limits of the camera-ready format required by ACM. Instructions for the preparation of the camera-ready versions of the papers will be provided after acceptance.

All accepted papers will be published by ACM and will be available via the ACM Digital Library. To be included in the Proceedings, at least one author of each accepted paper must register for the conference and present the paper there.


A. Main Tracks Paper Deadlines:

14 May 2021 | Paper deadline

9 July 2021 | Papers notifications

25 July 2021 | Camera-ready deadline

Submissions via EasyChair.


B. Late Breaking Results & Doctoral Consortium Deadlines

21 June 2021 | Submissions

9 July 2021 | Notifications

25 July 2021 | Camera-ready

Submissions via EasyChair.


C. Workshop & Exhibition Deadlines

30 April 2021 | Submissions

Submissions directly to kevin.koidl[a]