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WWW
2003
ACM
16 years 5 months ago
A Context-Based Information Agent for Supporting Intelligent Distance Learning Environments
The large amount of information now available on the Web can play a prominent role in building a cooperative intelligent distance learning environment. We propose a system to prov...
Mohammed Abdel Razek, Claude Frasson, Marc Kaltenb...
IJMMS
2008
108views more  IJMMS 2008»
15 years 4 months ago
Ontology-based information extraction and integration from heterogeneous data sources
In this paper we present the design, implementation and evaluation of SOBA, a system for ontology-based information extraction from heterogeneous data resources, including plain t...
Paul Buitelaar, Philipp Cimiano, Anette Frank, Mat...
CHI
2005
ACM
16 years 4 months ago
Deciphering visual gist and its implications for video retrieval and interface design
How do people make sense of a video based on viewing a few frames of that video? What elements constitute the "visual gist" in their minds? Answers to these questions wi...
Meng Yang, Gary Marchionini
ICDE
2004
IEEE
102views Database» more  ICDE 2004»
16 years 5 months ago
Approximate Temporal Aggregation
Temporal aggregate queries retrieve summarized information about records with time-evolving attributes. Existing approaches have at least one of the following shortcomings: (i) th...
Yufei Tao, Dimitris Papadias, Christos Faloutsos
GIS
2006
ACM
16 years 5 months ago
Exploiting a page-level upper bound for multi-type nearest neighbor queries
Given a query point and a collection of spatial features, a multi-type nearest neighbor (MTNN) query finds the shortest tour for the query point such that only one instance of eac...
Xiaobin Ma, Shashi Shekhar, Hui Xiong, Pusheng Zha...