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A concept of hierarchical topic is proposed for multi-document automatic summarization task, which used multi-layer topic tree structure to represent the text set. Each node in the topic tree represent specific topic and contains multiple similar sentences in the text set. The hierarchical topic structure may describe accurately the similarity between sentences at different levels of granularity....
Shipbuilding enterprise is one of pillar industries of the state, but researches on its production plan and control are rare, thus leads to its low efficiency. So this paper proposes a multilayer production plan model, a task management model based on WBS package and a multilayer resource management model for shipbuilding enterprise. Further more a management system was developed and its success proofed...
In many NLP applications, text topic identification is a common problem. Traditional topic identification method always generated a single-layered topic structure which is usually inaccurate topic division even if generated manually by the human experts. This paper proposed a concept of hierarchical topic which used multi-layer topic tree structure to represent the text or text set. Secondly, this...
As an important aspect of bioinformatics, the main problem of genome sequencing is DNA Fragment Assembly. This paper proposed a new fragment assembly algorithm based on the long fragment filtration. Firstly, the fragment set was divided into two parts according to a threshold of the filtration length and the Bruijn graph was formed by the short fragments set. Subsequently system automatically selected...
A Multi-document Rhetorical Structure (MRS) is proposed for multi-document automatic summarization task. This structure can represent interrelationship between text units at different levels of granularity and can describe simultaneously the happen and change of various events. MRS simplify traditional multi-document representation in cross structure theory and supplement change and distribution information...
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