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» Semantics of Information as Interactive Computation
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PODS
2006
ACM
177views Database» more  PODS 2006»
16 years 6 months ago
Equivalence of queries combining set and bag-set semantics
The query equivalence problem has been studied extensively for set-semantics and, more recently, for bag-set semantics. However, SQL queries often combine set and bag-set semantic...
Sara Cohen
185
Voted
COMSIS
2010
15 years 3 months ago
An accelerometer-based gesture recognition algorithm and its application for 3D interaction
Abstract. This paper proposes an accelerometer-based gesture recognition algorithm. As a pre-process procedure, raw data output by accelerometer should be quantized, and then use d...
Jianfeng Liu, Zhigeng Pan, Xiangcheng Li
CHI
1992
ACM
15 years 10 months ago
Dynamic Queries for Information Exploration: An Implementation and Evaluation
We designed, implemented and evaluated a new concept for direct manipulation of databases, called dynamic queries, that allowsuserstoformulatequerieswithgraphicalwidgets,such as s...
Christopher Ahlberg, Christopher Williamson, Ben S...
ICIP
2008
IEEE
16 years 7 months ago
Activity-based temporal segmentation for videos of interacting objects using invariant trajectory features
This paper presents a content-based approach for temporal segmentation of videos. Tracked objects are characterized by their 2D trajectories which are used in a meaningful way to ...
Alexandre Hervieu, Patrick Bouthemy, Jean-Pierre L...
ICPR
2006
IEEE
16 years 7 months ago
Semantic Understanding of Continued and Recursive Human Activities
This paper presents a methodology for semantic understanding of complex and continued human activities. A context-free grammar (CFG) based representation scheme developed earlier ...
J. K. Aggarwal, Michael S. Ryoo