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CIKM
2011
Springer
14 years 3 months ago
Lower-bounding term frequency normalization
In this paper, we reveal a common deficiency of the current retrieval models: the component of term frequency (TF) normalization by document length is not lower-bounded properly;...
Yuanhua Lv, ChengXiang Zhai
178
Voted
SMA
2009
ACM
185views Solid Modeling» more  SMA 2009»
15 years 10 months ago
A dynamic data structure for flexible molecular maintenance and informatics
We present the “Dynamic Packing Grid” (DPG) data structure along with details of our implementation and performance results, for maintaining and manipulating flexible molecul...
Chandrajit L. Bajaj, Rezaul Alam Chowdhury, Muhibu...
155
Voted
CVPR
2007
IEEE
16 years 6 months ago
Learning a Spatially Smooth Subspace for Face Recognition
Subspace learning based face recognition methods have attracted considerable interests in recently years, including Principal Component Analysis (PCA), Linear Discriminant Analysi...
Deng Cai, Xiaofei He, Yuxiao Hu, Jiawei Han, Thoma...
ICPR
2004
IEEE
16 years 5 months ago
An Undecimated Wavelet Transform Based Denoising, PPCA Based Pulse Modeling and Detection-Classification of PD Signals
Authors Address the problem of recognition and retrieval of relatively weak industrial signal such as Partial Discharges (PD) buried in excessive noise. The major bottleneck being...
Pradeep Kumar Shetty, T. S. Ramu
123
Voted
SIGSOFT
2008
ACM
16 years 4 months ago
Requirements engineering: from craft to discipline
Getting the right software requirements under the right environment assumptions is a critical precondition for developing the right software. This task is intrinsically difficult....
Axel van Lamsweerde