Opinion Sentence and Topic Relevant Sentence Extraction by Using Coherent Structure among the Sentences

We developed a new sentence extraction framework, the Sliding Window Framework, by using coherent structure among the sentences. Coherent structure means that the sentences that relate to a certain topic in an article are written in clusters to preserve the logical organization. To use the structure, our method makes blocks that consist of sentences in a window of a certain size, then estimates the score of each block, and judges each sentence from the scores. We applied our framework to opinion sentence extraction and topic relevant sentence extraction. In the result of our experiments, our framework achieved a very high recall ratio and a high F-value.