In this paper, region features and relevance feedback are used to improve the performance of CBIR. Unlike existing region-based approaches where either individual regions are used or only simple spatial layout is mode...In this paper, region features and relevance feedback are used to improve the performance of CBIR. Unlike existing region-based approaches where either individual regions are used or only simple spatial layout is modeled, the proposed approach simultaneously models both region properties and their spatial relationships in a probabilistic framework. Furthermore, the retrieval performance is improved by an adaptive filter based relevance feedback. To illustrate the performance of the proposed approach, extensive experiments have been carried out on a large heterogeneous image collection with 17,000 images, which render promising results on a wide variety of queries.展开更多
The study on database technologies, or more generally, the technologies ofdata and information management, is an important and active research field. Recently, many excitingresults have been reported. In this fast gro...The study on database technologies, or more generally, the technologies ofdata and information management, is an important and active research field. Recently, many excitingresults have been reported. In this fast growing field, Chinese researchers play more and moreactive roles. Research papers from Chinese scholars, both in China and abroad, appear in prestigiousacademic forums. In this paper, we, nine young Chinese researchers working in the United States,present concise surveys and report our recent progress on the selected fields that we are workingon. Although the paper covers only a small number of topics and the selection of the topics is farfrom balanced, we hope that such an effort would attract more and more researchers, especially thosein China, to enter the frontiers of database research and promote collaborations. For the obviousreason, the authors are listed alphabetically, while the sections are arranged in the order of theauthor list.展开更多
文摘In this paper, region features and relevance feedback are used to improve the performance of CBIR. Unlike existing region-based approaches where either individual regions are used or only simple spatial layout is modeled, the proposed approach simultaneously models both region properties and their spatial relationships in a probabilistic framework. Furthermore, the retrieval performance is improved by an adaptive filter based relevance feedback. To illustrate the performance of the proposed approach, extensive experiments have been carried out on a large heterogeneous image collection with 17,000 images, which render promising results on a wide variety of queries.
文摘The study on database technologies, or more generally, the technologies ofdata and information management, is an important and active research field. Recently, many excitingresults have been reported. In this fast growing field, Chinese researchers play more and moreactive roles. Research papers from Chinese scholars, both in China and abroad, appear in prestigiousacademic forums. In this paper, we, nine young Chinese researchers working in the United States,present concise surveys and report our recent progress on the selected fields that we are workingon. Although the paper covers only a small number of topics and the selection of the topics is farfrom balanced, we hope that such an effort would attract more and more researchers, especially thosein China, to enter the frontiers of database research and promote collaborations. For the obviousreason, the authors are listed alphabetically, while the sections are arranged in the order of theauthor list.
