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» Feature selection through gravitational search algorithm
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ICWSM
2008
15 years 1 months ago
Wikipedia as an Ontology for Describing Documents
Identifying topics and concepts associated with a set of documents is a task common to many applications. It can help in the annotation and categorization of documents and be used...
Zareen Saba Syed, Tim Finin, Anupam Joshi
GIS
2006
ACM
16 years 25 days 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...
SIGIR
2010
ACM
15 years 3 months ago
Interactive retrieval based on faceted feedback
Motivated by the commonly used faceted search interface in e-commerce, this paper investigates interactive relevance feedback mechanism based on faceted document metadata. In this...
Lanbo Zhang, Yi Zhang
SOFSEM
2004
Springer
15 years 5 months ago
Measures of Intrinsic Hardness for Constraint Satisfaction Problem Instances
Our aim is to investigate the factors which determine the intrinsic hardness of constructing a solution to any particular constraint satisfaction problem instance, regardless of th...
George Boukeas, Constantinos Halatsis, Vassilis Zi...
SETN
2004
Springer
15 years 5 months ago
Incremental Mixture Learning for Clustering Discrete Data
Abstract. This paper elaborates on an efficient approach for clustering discrete data by incrementally building multinomial mixture models through likelihood maximization using the...
Konstantinos Blekas, Aristidis Likas