Two lines of image representation based on multiple features fusion demonstrate excellent performance in image retrieval.However,there are some problems in both of them:1)the methods defining directly texture in color...Two lines of image representation based on multiple features fusion demonstrate excellent performance in image retrieval.However,there are some problems in both of them:1)the methods defining directly texture in color space put more emphasis on color than texture feature;2)the methods extract several features respectively and combine them into a vector,in which bad features may lead to worse performance after combining directly good and bad features.To address the problems above,a novel hybrid framework for color image retrieval through combination of local and global features achieves higher retrieval precision.The bag-of-visual words(BoW)models and color intensity-based local difference patterns(CILDP)are exploited to capture local and global features of an image.The proposed fusion framework combines the ranking results of BoW and CILDP through graph-based density method.The performance of our proposed framework in terms of average precision on Corel-1K database is86.26%,and it improves the average precision by approximately6.68%and12.53%over CILDP and BoW,respectively.Extensive experiments on different databases demonstrate the effectiveness of the proposed framework for image retrieval.展开更多
This paper, which is to be collocated with international research studies of the historical origins of corporate social responsibility （CSR）, deals with both the theme of CSR itself and the topics related to it thro...This paper, which is to be collocated with international research studies of the historical origins of corporate social responsibility （CSR）, deals with both the theme of CSR itself and the topics related to it through an examination of the key characteristics of the theories of the master in the field of Italian Economia Aziendale, Paolo Emilio Cassandro （1910-2004）, who wrote an impressive number of works on numerous subjects that are of notable current relevance, including the social role of business, the concept of added value, and the role of the social report in the process of providing information for external purposes. Through an analytical-descriptive approach, our work will focus in particular on certain aspects of his life and works, which show beyond doubt the great value of his contribution to the advancement, at both national and international levels, of research into CSR. The main aim of what follows is to highlight not only the innovative nature of Cassandro＇s studies of the subject when compared with other research carried out in Italy in the second half of the 20th century but also how strikingly relevant they are to CSR as a topic for international scholars today.展开更多
基金Projects(61370200,61672130,61602082) supported by the National Natural Science Foundation of ChinaProject(1721203049-1) supported by the Science and Technology Research and Development Plan Project of Handan,Hebei Province,China
文摘Two lines of image representation based on multiple features fusion demonstrate excellent performance in image retrieval.However,there are some problems in both of them:1)the methods defining directly texture in color space put more emphasis on color than texture feature;2)the methods extract several features respectively and combine them into a vector,in which bad features may lead to worse performance after combining directly good and bad features.To address the problems above,a novel hybrid framework for color image retrieval through combination of local and global features achieves higher retrieval precision.The bag-of-visual words(BoW)models and color intensity-based local difference patterns(CILDP)are exploited to capture local and global features of an image.The proposed fusion framework combines the ranking results of BoW and CILDP through graph-based density method.The performance of our proposed framework in terms of average precision on Corel-1K database is86.26%,and it improves the average precision by approximately6.68%and12.53%over CILDP and BoW,respectively.Extensive experiments on different databases demonstrate the effectiveness of the proposed framework for image retrieval.
文摘This paper, which is to be collocated with international research studies of the historical origins of corporate social responsibility （CSR）, deals with both the theme of CSR itself and the topics related to it through an examination of the key characteristics of the theories of the master in the field of Italian Economia Aziendale, Paolo Emilio Cassandro （1910-2004）, who wrote an impressive number of works on numerous subjects that are of notable current relevance, including the social role of business, the concept of added value, and the role of the social report in the process of providing information for external purposes. Through an analytical-descriptive approach, our work will focus in particular on certain aspects of his life and works, which show beyond doubt the great value of his contribution to the advancement, at both national and international levels, of research into CSR. The main aim of what follows is to highlight not only the innovative nature of Cassandro＇s studies of the subject when compared with other research carried out in Italy in the second half of the 20th century but also how strikingly relevant they are to CSR as a topic for international scholars today.
