The temporal query language TQuel
ACM Transactions on Database Systems (TODS)
DOODLE: a visual language for object-oriented databases
SIGMOD '92 Proceedings of the 1992 ACM SIGMOD international conference on Management of data
User interface evaluation of a direct manipulation temporal visual query language
MULTIMEDIA '97 Proceedings of the fifth ACM international conference on Multimedia
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Proceedings of the SIGCHI conference on Human Factors in Computing Systems
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Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
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Data & Knowledge Engineering - Special issue: Temporal representation and reasoning
Discovering Temporal Patterns for Interval-Based Events
DaWaK 2000 Proceedings of the Second International Conference on Data Warehousing and Knowledge Discovery
IFQ: a visual query interface and query generator for object-based media retrieval
ICMCS '97 Proceedings of the 1997 International Conference on Multimedia Computing and Systems
Sequenced Subset Operators: Definition and Implementation
ICDE '02 Proceedings of the 18th International Conference on Data Engineering
QueryLines: approximate query for visual browsing
CHI '05 Extended Abstracts on Human Factors in Computing Systems
Mining Nonambiguous Temporal Patterns for Interval-Based Events
IEEE Transactions on Knowledge and Data Engineering
Mining relationships among interval-based events for classification
Proceedings of the 2008 ACM SIGMOD international conference on Management of data
Search User Interfaces
ActiviTree: Interactive Visual Exploration of Sequences in Event-Based Data Using Graph Similarity
IEEE Transactions on Visualization and Computer Graphics
LifeFlow: visualizing an overview of event sequences
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Visually defining and querying consistent multi-granular clinical temporal abstractions
Artificial Intelligence in Medicine
A Temporal Pattern Search Algorithm for Personal History Event Visualization
IEEE Transactions on Knowledge and Data Engineering
Querying event sequences by exact match or similarity search: Design and empirical evaluation
Interacting with Computers
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In our burgeoning world of ubiquitous sensors and affordable data storage, records of timestamped events are being produced across nearly every domain of personal and professional computing. The resulting data surge has created an overarching need to search these records for meaningful patterns of events. This paper reports on a two-part user study, as well as a series of early tests and interviews with clinical researchers, that informed the development of two temporal query interfaces: a basic, menu-based interface and an advanced, graphic-based interface. While the scope of temporal query is very broad, this work focuses on two particularly complex and critical facets of temporal event sequences: intervals (events with both a start time and an end time), and the absence of an event. We describe how users encounter a common set of difficulties when specifying such queries, and propose solutions to help overcome them. Finally, we report on two case studies with epidemiologists at the US Army Pharmacovigilance Center, illustrating how both query interfaces were used to study patterns of drug use.