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» Querying Imprecise Data in Moving Object Environments
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CIKM
2011
Springer
13 years 11 months ago
MTopS: scalable processing of continuous top-k multi-query workloads
A continuous top-k query retrieves the k most preferred objects in a data stream according to a given preference function. These queries are important for a broad spectrum of appl...
Avani Shastri, Di Yang, Elke A. Rundensteiner, Mat...
SIGMOD
2006
ACM
109views Database» more  SIGMOD 2006»
15 years 12 months ago
OMCAT: optimal maintenance of continuous queries' answers for trajectories
We present our prototype system, OMCAT, which optimizes the reevaluation of a set of pending continuous spatio-temporal queries on trajectory data, when some of the trajectories a...
Hui Ding, Goce Trajcevski, Peter Scheuermann
UIST
1997
ACM
15 years 4 months ago
Pick-and-Drop: A Direct Manipulation Technique for Multiple Computer Environments
This paper proposes a new field of user interfaces called multi-computer direct manipulation and presents a pen-based direct manipulation technique that can be used for data trans...
Jun Rekimoto
ISCI
2008
120views more  ISCI 2008»
14 years 11 months ago
Using cooperative mobile agents to monitor distributed and dynamic environments
Monitoring the changes in data values obtained from the environment (e.g., locations of moving objects) is a primary concern in many fields, as for example in the pervasive comput...
Sergio Ilarri, Eduardo Mena, Arantza Illarramendi
EDBT
2009
ACM
162views Database» more  EDBT 2009»
15 years 6 months ago
A data model for trip planning in multimodal transportation systems
This paper introduces the problem of modeling urban transportation systems in a database where certain aspects of the data are probabilistic in nature. The transportation network ...
Joel Booth, A. Prasad Sistla, Ouri Wolfson, Isabel...