Call for Contributions

SSTD 2021 solicits submissions in four tracks.

1. Research Track

Authors are invited to submit long research papers that present original research contributions. The selection criteria include quality, novelty, correctness, and relevance to SSTD. Authors are also invited to submit short research papers that discuss exciting new work that is not yet mature enough for a long paper. In particular, novel but significant proposals will be considered for acceptance to this category despite not having gone through sufficient experimental validation or lacking strong theoretical foundation.

2. Demo Track

Authors are invited to submit demo papers, describing demonstrations of systems, developed or under development. The selection criteria for the demonstration proposals include: the novelty, the technical advances and challenges, and the overall practical attractiveness of the demonstrated system.

3. Industry Track

Authors are invited to submit industry papers that describe original experiences, challenges, systems and applications in industry. For each industry paper, at least one author should have a non-academic affiliation.

4. Vision Track

Authors are invited to submit vision papers that describe revolutionary ideas that are likely to guide research in the near future, challenge existing assumptions prevalent in the research community, or identify novel applications and technology trends that create new research challenges.

Submission Guidelines

All submissions should be in English, formatted in PDF according to the ACM SIG Conference Proceedings (sigconf) template available at: If you use Overleaf, you can access the ACM official template at:

Long research papers and industry papers are limited to 10 pages (ACM sigconf). Short research papers, demo papers, and vision papers are limited to 4 pages (ACM sigconf). These page limits are inclusive of references and any appendices. Papers should be submitted via Easychair at: to the appropriate track.

Best submissions will be selected for an extended journal submission to a special issue of “SSTD 2021 Best Papers” in GeoInfomatica. One of them will be selected as “SSTD's Ralf H. Güting Best Paper Award”.

Topics of Interest

Topics of interest for the four tracks include, but are not limited to, the following in the context of spatial, temporal, and spatio-temporal data.

  • Access Methods and Indexing
  • AI and Machine Learning
  • Computational Geometry
  • Crowdsourcing and User-Generated Content
  • Data Mining and Knowledge Discovery
  • Data Quality and Cleaning
  • Data Types and Query Languages
  • Database Design and Conceptual Modeling
  • Data Science
  • Experiments, Benchmarks, and Performance Evaluation
  • Fairness, Accountability, and Transparency
  • Graph Modeling and Algorithms
  • Indoor Space
  • Location-Based Services
  • Map Matching
  • New Hardware Platforms
  • Ontologies and Taxonomies
  • Parallel and Distributed Databases
  • Privacy, Security, and Integrity
  • Query Optimization
  • Real Applications and Systems
  • Recommender Systems
  • Semantic Data Techniques and Reasoning
  • Similarity Search
  • Spatial Networks
  • Spatio-textual Techniques
  • Temporal Data and Data Streams
  • Transportation
  • Uncertain, Imprecise, and Probabilistic Data
  • Urban Planning
  • User Interfaces and Visualization