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SIGIR
2003
ACM
15 years 12 months ago
Quantitative evaluation of passage retrieval algorithms for question answering
Passage retrieval is an important component common to many question answering systems. Because most evaluations of question answering systems focus on end-to-end performance, comp...
Stefanie Tellex, Boris Katz, Jimmy J. Lin, Aaron F...
KDD
2010
ACM
300views Data Mining» more  KDD 2010»
15 years 5 months ago
Using data mining techniques to address critical information exchange needs in disaster affected public-private networks
Crisis Management and Disaster Recovery have gained immense importance in the wake of recent man and nature inflicted calamities. A critical problem in a crisis situation is how t...
Li Zheng, Chao Shen, Liang Tang, Tao Li, Steven Lu...
ICDE
2012
IEEE
238views Database» more  ICDE 2012»
13 years 9 months ago
Mining Knowledge from Data: An Information Network Analysis Approach
Abstract—Most objects and data in the real world are interconnected, forming complex, heterogeneous but often semistructured information networks. However, many database research...
Jiawei Han, Yizhou Sun, Xifeng Yan, Philip S. Yu
CIKM
2009
Springer
16 years 1 months ago
The effect of negation on sentiment analysis and retrieval effectiveness
We investigate the problem of determining the polarity of sentiments when one or more occurrences of a negation term such as “not” appear in a sentence. The concept of the sco...
Lifeng Jia, Clement T. Yu, Weiyi Meng
SIGMETRICS
2002
ACM
117views Hardware» more  SIGMETRICS 2002»
15 years 6 months ago
Context-aware TCP/IP
Abstract-This paper discusses the design and evaluation of CATNIP, a ContextAware Transport/Network Internet Protocol for the Web. This integrated protocol uses application-layer k...
Carey L. Williamson, Qian Wu