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As a newly shopping tool, electronic commerce has been drawing more and more attention of researchers. According to the characteristics of comments diversity, it is necessary to extract evaluation object which is an important component of sentiment information. This paper explores Conditional Random Field (CRF) to do evaluation objects extraction. After observing generally used features in sentiment...
The key of a computer-assisted diagnosis system for screening of cervical cancer is the accurate segmentation of cells. In this paper, an adaptive segmentation algorithm based on GVF Snake model is proposed to separate the nucleus from cervical smear model. We set the parameters of the model, and then use the model to segment the cervical cells based on the initial contour of nuclei. The segmentation...
The soil nitrogen transformation is one of the important parts for the nitrogen cycle in terrestrial ecosystems. The nitrogen use efficiency of the plant is limited by the nitrogen availability, which directly affect the productivity of terrestrial ecosystems. The soil nitrogen transformation is a complex process influenced by many environmental factors. This article made a detailed overview on the...
Organizational innovation generally determines the effectiveness of technological innovation to some extends. We divide the organizational innovation into two types: one focuses on human-beings and the cultural factors within organizations and the other on the innovation of organizational structure and strategy. This paper attaches more attention onto the former type and discusses the theory of organizational...
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