The International Symposium on Spatial and Temporal Databases 2019 (SSTD 2019) is the sixteenth event of a series of biannual symposia that discuss new and exciting research in spatial, temporal and spatio-temporal data management and related technologies with the goal to set future research directions. The primary focus of SSTD symposia is on original results in the areas of theoretical foundations, design, implementation, and applications of spatial and temporal database technology. SSTD also welcomes experience reports from application specialists and the commercial community that describe lessons learned in the development, operation, and maintenance of actual systems in practical and innovative applications. The goal is to exchange research ideas and results across academia, industry and government from diverse geographies, and career stages.

SSTD 2019 solicits submissions in four tracks.

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.

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.

Industry track:
Authors are invited to submit industry papers that describe original experiences, challenges, systems and applications in industry.

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.

Topics of interest for all four tracks include, but are not limited to, the following in the context of spatial, temporal, and spatio-temporal data:
* Access Methods
* AI and Machine Learning
* Computational Geometry
* Crowdsourcing and User-Generated Content
* Data Mining and Knowledge Discovery
* Data Quality and Cleaning
* Data Streams
* Data Types and Query Languages
* Data Warehousing and Decision Support
* Database Design and Conceptual Modeling
* Experiments, Benchmarks, and Performance Evaluation
* Fairness, Accountability, and Transparency
* Geographic Information Retrieval
* Graph Modeling and Algorithms
* Indoor Space
* Location-Based Services
* Location-Based Social Networks
* Map Matching
* Moving Objects
* 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
* Sensor Networks
* Similarity Search
* Spatial Networks
* Spatio-textual Techniques
* Transportation
* Uncertain, Imprecise, and Probabilistic Data
* Urban Planning
* User Interfaces and Visualization
* Web Information Retrieval

All submissions should be in English, formatted in PDF according to the ACM SIG Conference Proceedings (sigconf) template available at: http://www.acm.org/publications/proceedings-template. Long research papers and industry papers are limited to 10 pages while short research papers, demo papers, and vision papers are limited to 4 pages. Papers should be submitted via Easychair to the appropriate track through:
http://easychair.org/conferences/?conf=sstd2019.

SSTD 2019 proceedings will appear on ACM Digital Library.


Important Dates
===========================
Research & Industry tracks
Abstract Deadline: March 25, 2019
Paper Deadline: April 1, 2019

Demo & Vision tracks
Abstract Deadline: April 8, 2019
Paper Deadline: April 15, 2019

Notifications: June 10, 2019
Camera-Ready: July 1, 2019

All deadlines refer to 23:59 (11:59pm) in the AoE (Anywhere on Earth) time zone.


General Chairs
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Dimitris Sacharidis (Technische Universität Wien, Austria)
Panagiotis Bouros (Johannes Gutenberg University Mainz, Germany)


Honorary Chair
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Dimitris Papadias (Hong Kong University of Science and Technology)


Program Chairs
==============

Research & Industry track
Walid Aref (Purdue University, USA)
Christian Jensen (Aalborg University, Denmark)
Kjetil Nørvåg (Norwegian University of Science and Technology, Norway)

Demo track
Michela Bertolotto (University College Dublin, Ireland)

Vision track
Mohamed Sarwat (Arizona State University, USA)


Proceedings Chair
=================
Ahmed Mahmood (Google, USA)


Publicity Chairs
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George J. Fakas (Uppsala University, Sweden)
Mingjie Tang (Hortonworks, USA)
Dingming Wu (Shenzhen University, China)


Sponsorship Chairs
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Petko Bakalov (ESRI, USA)
Marcos R. Vieira (Google, USA)


Webmaster
=========
Theodoros Chondrogiannis (University of Konstanz, Germany)


SSTD Steering Committee
=======================
Shashi Shekhar (University of Minnesota, USA)
Mario A. Nascimento (University of Alberta, Canada)
Yan Huang (University of North Texas, USA)
Ki-Joune Li (Pusan National University, South Korea)
Bernhard Seeger (University of Marburg, Germany)
Yannis Theodoridis (University of Piraeus, Greece)
Raymond Chi-Wing Wong (Hong Kong University of Science and Technology)