ACM UMAP 2021 is the premier international conference for researchers and practitioners working on systems that adapt to individual users, to groups of users, and that collect, represent, and model user information.

ACM UMAP 2021 invites Demonstrations and Late-Breaking Results (LBR) papers of innovative UMAP-based systems (including research prototypes). You are encouraged to submit your Demo or LBR by March 26th, 2021.


Important Dates

  • Submission of demos and LBR papers:  March 26, 2021
  • Notification of acceptance: April 19, 2021
  • Camera-ready versions of accepted papers: May 7, 2021
  • Conference: June 21-25, 2021 

Note: The submissions times are 11:59 pm AoE time (Anywhere on Earth)


Submission formats


  • Max. 3 pages + max. 1 additional page for references
  • (Required) unpublished page describing how they would present the demo virtually and/or in person
  • (Optional) video or external material demonstrating the system
  • Publication in ACM UMAP 2021 Adjunct Proceedings
  • Presentation as a (potentially virtual) demo + poster at the conference

Late-Breaking Results

  • Max. 7 pages + max. 2 additional pages for references
  • (NEW: required) unpublished page with a list of questions the authors aim to get feedback on
  • Publication in ACM UMAP 2021 Adjunct Proceedings
  • Presentation as a (potentially virtual) poster at the conference

Submission via


Demonstrations will showcase research prototypes and commercially available products in a dedicated session. Demo submissions must be based on an implemented and tested system that pursues one or more innovative ideas in the interest areas of the conference.

Demonstrations are an excellent and exciting way to showcase implementations and to get valuable feedback from the community. Each demo submission must make clear which aspects of the system will be demonstrated, and how these will be demonstrated on-site as well as online.

To better identify the value of demos, we also encourage authors to submit a pointer to a screencast (max. 5 minutes on Vimeo or YouTube) or any external material related to the demo (e.g., shared code on GitHub).

Descriptions of demonstrations should have a length of max. 3 pages + 1 page of references in the new ACM single-column style. On an extra page (not to be published), submissions should include a specification of the technical requirements for demonstrating the system at UMAP 2021. Given uncertainties surrounding the COVID-19 pandemic, this extra page should also describe if/how the demo can be presented in a virtual setting (e.g. with a video or a live link to the system).

Late-Breaking Results

Late-Breaking Results (LBR) are research-in-progress that must contain original and unpublished accounts of innovative research ideas, preliminary results, industry showcases, and system prototypes, addressing both the theory and practice of User Modeling, Adaptation and Personalization. In addition, papers introducing recently started research projects or summarizing project results are welcome as well.

We encourage researchers and practitioners to submit a late-breaking work as it provides a unique opportunity for sharing valuable ideas, eliciting useful feedback on early-stage work, and fostering discussions and collaborations among colleagues.

Late-Breaking Results papers have a length of up to 7 pages + 2 pages of references in the new ACM single-column style and will be presented to the conference as (in-person and virtual) posters. On an extra page (not to be published), submissions should include a list of questions that the authors aim to get feedback on during the poster session at UMAP 2021.


Submission and Review Process

Papers will be reviewed single-blind and do not need to be anonymized before submission.

Papers (demo and LBR) 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 (we strongly recommend the usage of LaTeX for the camera-ready papers to minimize the extent of reformatting):

Note: 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.

Submit your papers in PDF format via EasyChair for ACM UMAP 2021 Demos and Late-Breaking Results at (choose “New Submission” and make sure to select “UMAP 2021 Demo and LBR”).

The review process will be single-blind, i.e. authors’ names should be included in the papers. Submissions will be reviewed by at least two independent reviewers. They will be assessed based on their originality and novelty, potential contribution to the research field, potential impact in particular use cases, and the usefulness of presented experiences, as well as their overall readability.

Papers that exceed the page limits or do not adhere to the formatting guidelines will be returned without review.


Publication and Presentation

Accepted Demo and Late-Breaking Results papers will be published in the ACM UMAP 2021 Adjunct Proceedings in the ACM Digital Library. All categories will be presented at the poster reception of the conference, in the form of a poster and/or a software demonstration following poster format. This form of presentation will provide presenters with an opportunity to obtain direct feedback about their work from a wide audience during the conference. Due to the uncertainties regarding the COVID-19 pandemic, the poster session may be partially or fully virtual.

At least one author of each accepted paper must register for the conference and present the paper there.


Late-Breaking Results and Demo Chairs

  • Bart Knijnenburg, Clemson University, South Carolina, USA
  • Eva Zangerle, Universität Innsbruck, Austria