354 search results - page 54 / 71 » Top-k learning to rank: labeling, ranking and evaluation |
ECML
2007
Springer
15 years 3 months ago
2007
Springer
L1 regularization is effective for feature selection, but the resulting optimization is challenging due to the non-differentiability of the 1-norm. In this paper we compare state...
RIAO
2007
2007
From Layout to Semantic: a Reranking Model for Mapping Web Documents to Mediated XML Representations
14 years 11 months ago
Many documents on the Web are formated in a weakly structured format. Because of their weak semantic and because of the heterogeneity of their formats, the information conveyed by...
VIP
2003
14 years 11 months ago
2003
Using different algorithms to segment different images is a quite straightforward strategy for automated image segmentation. But the difficulty of the optimal algorithm selection ...
CVPR
2001
IEEE
15 years 11 months ago
2001
IEEE
A new scheme of learning similarity measure is proposed for content-based image retrieval (CBIR). It learns a boundary that separates the images in the database into two parts. Im...
ICPR
2008
IEEE
15 years 10 months ago
2008
IEEE
We present a new method for relevance feedback in image retrieval and a scheme to learn weighted distances which can be used in combination with different relevance feedback metho...