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TRECVID
2008
15 years 7 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
16 years 8 days 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 11 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»
15 years 5 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 11 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