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ICDM
2007
IEEE
173views Data Mining» more  ICDM 2007»
16 years 27 days ago
Sparse Word Graphs: A Scalable Algorithm for Capturing Word Correlations in Topic Models
Statistical topic models such as the Latent Dirichlet Allocation (LDA) have emerged as an attractive framework to model, visualize and summarize large document collections in a co...
Ramesh Nallapati, Amr Ahmed, William W. Cohen, Eri...
IJCNN
2007
IEEE
16 years 27 days ago
Branching Principal Components: Elastic Graphs, Topological Grammars and Metro Maps
— To approximate complex data, we propose new type of low-dimensional “principal object”: principal cubic complex. This complex is a generalization of linear and nonlinear pr...
Alexander N. Gorban, Neil R. Sumner, Andrei Yu. Zi...
ASPDAC
2006
ACM
91views Hardware» more  ASPDAC 2006»
16 years 17 days ago
Fast substrate noise-aware floorplanning with preference directed graph for mixed-signal SOCs
— In this paper, we introduce a novel substrate noise estimation technique during early floorplanning, based on the concept of Block Preference Directed Graph (BPDG) and the cla...
Minsik Cho, Hongjoong Shin, David Z. Pan
MIR
2006
ACM
223views Multimedia» more  MIR 2006»
16 years 16 days ago
Adaptive image retrieval using a Graph model for semantic feature integration
The variety of features available to represent multimedia data constitutes a rich pool of information. However, the plethora of data poses a challenge in terms of feature selectio...
Jana Urban, Joemon M. Jose
ER
2004
Springer
79views Database» more  ER 2004»
15 years 12 months ago
Multi-phase Process Mining: Building Instance Graphs
Abstract. Deploying process-driven information systems is a time-consuming and error-prone task. Process mining attempts to improve this by automatically generating a process model...
Boudewijn F. van Dongen, Wil M. P. van der Aalst