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CIKM
2008
Springer
14 years 11 months ago
Active relevance feedback for difficult queries
Relevance feedback has been demonstrated to be an effective strategy for improving retrieval accuracy. The existing relevance feedback algorithms based on language models and vect...
Zuobing Xu, Ram Akella
CIKM
2008
Springer
14 years 11 months ago
On low dimensional random projections and similarity search
Random projection (RP) is a common technique for dimensionality reduction under L2 norm for which many significant space embedding results have been demonstrated. However, many si...
Yu-En Lu, Pietro Liò, Steven Hand
CIKM
2008
Springer
14 years 11 months ago
Topological analysis of an online social network for older adults
Social network systems on the Internet, such MySpace and LinkedIn, are growing in popularity around the world. The level of such activity is now comparable to that associated with...
Marcella Wilson, Charles K. Nicholas
ASPLOS
2006
ACM
14 years 11 months ago
Tradeoffs in fine-grained heap memory protection
Different uses of memory protection schemes have different needs in terms of granularity. For example, heap security can benefit from chunk separation (by using protected "pa...
Jianli Shen, Guru Venkataramani, Milos Prvulovic
DOCENG
2005
ACM
14 years 11 months ago
Generative semantic clustering in spatial hypertext
This paper presents an iterative method for generative semantic clustering of related information elements in spatial hypertext documents. The goal is to automatically organize th...
Andruid Kerne, Eunyee Koh, Vikram Sundaram, J. Mic...