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TRECVID
2008
15 years 1 months ago
Beyond Semantic Search: What You Observe May Not Be What You Think
This paper presents our approaches and results of the four TRECVID 2008 tasks we participated in: high-level feature extraction, automatic video search, video copy detection, and ...
Chong-Wah Ngo, Yu-Gang Jiang, Xiao-Yong Wei, Wanle...
CLEF
2007
Springer
15 years 6 months ago
Using Geographic Signatures as Query and Document Scopes in Geographic IR
This paper reports the participation of the University of Lisbon at the 2007 GeoCLEF task. We adopted a novel approach for GIR, focused on handling geographic features and feature ...
Nuno Cardoso, David Cruz, Marcirio Silveira Chaves...
HICSS
2003
IEEE
95views Biometrics» more  HICSS 2003»
15 years 5 months ago
Knowledge Negotiation in Asynchronous Learning Networks
The negotiation of what is to count as mutually acceptable collaborative knowledge is difficult to conduct when participants cannot interact face-to-face. We review certain relate...
Gerry Stahl
INFORMATICALT
2000
110views more  INFORMATICALT 2000»
14 years 11 months ago
A Game Theoretic Analysis of Mechanisms to Induce Regional Technological Cooperation
A concept of regional technological cooperation is developed based on a cooperative game theoretic model, in which a plan of payoff distributions induces an agreement that is accep...
Hanif D. Sherali, Qing Li
CSCW
2004
ACM
15 years 5 months ago
The multiple views of inter-organizational authoring
Collaborative authoring is a common workplace task. Yet, despite improvements in word processors, communication software, and file sharing, many problems continue to plague co-aut...
David W. McDonald, Chunhua Weng, John H. Gennari