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CHI
2007
ACM
16 years 7 months ago
Effects of presenting geographic context on tracking activity between cameras
A common video surveillance task is to keep track of people moving around the space being monitored. It is often difficult to track activity between cameras because locations such...
Andreas Girgensohn, Frank M. Shipman III, Thea Tur...
SIGMOD
2009
ACM
198views Database» more  SIGMOD 2009»
16 years 7 months ago
Monitoring path nearest neighbor in road networks
This paper addresses the problem of monitoring the k nearest neighbors to a dynamically changing path in road networks. Given a destination where a user is going to, this new quer...
Zaiben Chen, Heng Tao Shen, Xiaofang Zhou, Jeffrey...
292
Voted
SIGMOD
2009
ACM
213views Database» more  SIGMOD 2009»
16 years 7 months ago
Dictionary-based order-preserving string compression for main memory column stores
Column-oriented database systems [19, 23] perform better than traditional row-oriented database systems on analytical workloads such as those found in decision support and busines...
Carsten Binnig, Stefan Hildenbrand, Franz Fär...
SIGMOD
2008
ACM
120views Database» more  SIGMOD 2008»
16 years 6 months ago
Muse: a system for understanding and designing mappings
Schema mappings are logical assertions that specify the relationships between a source and a target schema in a declarative way. The specification of such mappings is a fundamenta...
Bogdan Alexe, Laura Chiticariu, Renée J. Mi...
SIGMOD
2003
ACM
145views Database» more  SIGMOD 2003»
16 years 6 months ago
Evaluating Probabilistic Queries over Imprecise Data
Many applications employ sensors for monitoring entities such as temperature and wind speed. A centralized database tracks these entities to enable query processing. Due to contin...
Reynold Cheng, Dmitri V. Kalashnikov, Sunil Prabha...
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