Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Large Margin Multi-modal Multi-task Feature Extraction for Image
  Classification   The features used in many image analysis-based applications are frequently of
very high dimension. Feature extraction offers several advantages in
high-dimensional cases, and many recent studies have used multi-task feature
extraction approaches, which often outperform single-task feature extraction
approaches. However, most of these methods are limited in that they only
consider data represented by a single type of feature, even though features
usually represent images from multiple modalities. We therefore propose a novel
large margin multi-modal multi-task feature extraction (LM3FE) framework for
handling multi-modal features for image classification. In particular, LM3FE
simultaneously learns the feature extraction matrix for each modality and the
modality combination coefficients. In this way, LM3FE not only handles
correlated and noisy features, but also utilizes the complementarity of
different modalities to further help reduce feature redundancy in each
modality. The large margin principle employed also helps to extract strongly
predictive features so that they are more suitable for prediction (e.g.,
classification). An alternating algorithm is developed for problem optimization
and each sub-problem can be efficiently solved. Experiments on two challenging
real-world image datasets demonstrate the effectiveness and superiority of the
proposed method.

30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin