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ICDM
2006
IEEE
89views Data Mining» more  ICDM 2006»
16 years 13 days ago
On the Lower Bound of Local Optimums in K-Means Algorithm
The k-means algorithm is a popular clustering method used in many different fields of computer science, such as data mining, machine learning and information retrieval. However, ...
Zhenjie Zhang, Bing Tian Dai, Anthony K. H. Tung
ICCS
2007
Springer
15 years 10 months ago
A Comparison of Different Conceptual Structures Projection Algorithms
Knowledge representation (KR) is used to store and retrieve meaningful data. This data is saved using dynamic data structures that are suitable for the style of KR being implemente...
Heather D. Pfeiffer, Roger T. Hartley
EDBT
2010
ACM
155views Database» more  EDBT 2010»
15 years 9 months ago
Suffix tree construction algorithms on modern hardware
Suffix trees are indexing structures that enhance the performance of numerous string processing algorithms. In this paper, we propose cache-conscious suffix tree construction algo...
Dimitris Tsirogiannis, Nick Koudas
ECIR
2007
Springer
15 years 7 months ago
Results Merging Algorithm Using Multiple Regression Models
: This paper describes a new algorithm for merging the results of remote collections in a distributed information retrieval environment. The algorithm makes use only of the ranks o...
Georgios Paltoglou, Michail Salampasis, Maria Satr...
JCO
2010
75views more  JCO 2010»
15 years 4 months ago
A quadratic lower bound for Rocchio's similarity-based relevance feedback algorithm with a fixed query updating factor
Rocchio’s similarity-based relevance feedback algorithm, one of the most important query reformation methods in information retrieval, is essentially an adaptive supervised lear...
Zhixiang Chen, Bin Fu, John Abraham