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ECAI
2004
Springer
15 years 11 months ago
A Generalized Quadratic Loss for Support Vector Machines
The standard SVM formulation for binary classification is based on the Hinge loss function, where errors are considered not correlated. Due to this, local information in the featu...
Filippo Portera, Alessandro Sperduti
CSSE
2008
IEEE
15 years 8 months ago
Image Retrieval Based on Bit-Plane Distribution Entropy
Based on the analysis of color histogram for image retrieval, a new descriptor, bit-plane distribution entropy (BPDE), is proposed in this paper. The image is firstly divided into ...
Zhao Shan, Wang Hai-tao
ECIR
2008
Springer
15 years 7 months ago
Using Coherence-Based Measures to Predict Query Difficulty
Abstract. We investigate the potential of coherence-based scores to predict query difficulty. The coherence of a document set associated with each query word is used to capture the...
Jiyin He, Martha Larson, Maarten de Rijke
ECCV
2008
Springer
16 years 8 months ago
Local Regularization for Multiclass Classification Facing Significant Intraclass Variations
We propose a new local learning scheme that is based on the principle of decisiveness: the learned classifier is expected to exhibit large variability in the direction of the test ...
Lior Wolf, Yoni Donner
OTM
2005
Springer
15 years 11 months ago
Web Image Semantic Clustering
This paper provides a novel Web image clustering methodology based on their associated texts. In our approach, the semantics of Web images are firstly represented into vectors of t...
Zhiguo Gong, Leong Hou U, Chan Wa Cheang