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Objects in fine-grained categories always share a high degree of shape similarity, making both “localizing discriminative parts” and “learning appearance descriptors” extremely difficult. We propose a framework to leverage 2D+3D cues to handle above two challenges. Towards the goal of image alignment to localize discriminative parts, traditional methods rely on either manual part annotation or image...
In this paper, we study human age estimation in face images under significant expression changes. We will address two issues: (1) Is age estimation affected by facial expression changes and how significant is the influence? (2) How to develop a robust method to perform age estimation undergoing various facial expression changes? This systematic study will not only discover the relation between age...
Humans have the capability to recognize family members. Phrases such as “John has his father's nose” or “Joe has his mother's eyes” are quite common. Motivated by this, we consider the following question: Is it possible to develop a method to extract the salient familial traits in face images for kinship recognition? If this idea works, an instrument may be invented to measure familial relationships...
Recently, we have proposed a handwriting Chinese character database HIT-OR3C. Though it has been introduced in detail, to date, it has not been evaluated by any handwriting recognition method. To help the researchers use this database for algorithm evaluation, we propose the structure of HIT-OR3C database. Moreover, we evaluate the OR3C database with a series of experiments using state-of-the-art...
Relation extraction is a challenging task in biomedical text mining due to the complex of sentences in the biomedical literature. In this paper, we address multi-class relationship extraction problem from biomedical literature using Maximum Entropy model with simple word features. The proposed method is applied to extract the protein-protein interactions. Experiments show the method achieves an accuracy...
Although Support Vector Machines(SVM) succeed in classifying several image databases using image descriptors proposed in the literature, no single descriptor can be optimal for general object categorization. This paper describes a novel framework to learn the optimal combination of kernels corresponding to multiple image descriptors before SVM training, leading to solve a quadratic programming problem...
We present an interactive, exoteric semantic knowledge base, which integrates HowNet and the online encyclopedia Wikipedia. The semantic knowledge base mainly builds on items, categories, attributes and relation between. In the constructing process, a mapping relationship is established from HowNet, Wikipedia to the new knowledge base. Different from other online encyclopedias or knowledge dictionaries,...
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