TISS: An Integrated Summarization System for TSC-3

In consideration of the previous workshop, we participate in TSC-3 to make improvements on important sentence extraction used in dry run of TSC-2. We formulate important sentence extraction as a combinational optimization problem that determines a set of sentences containing as many important information fragments as possible. In addition to the extraction method, we reinforce peripheral components such as sentence ordering, anaphora analysis and sentence compression to improve summary readability. We propose a remedy of chronological ordering by complementing presupposed information of each sentence. This paper reports mainly on important sentence extraction and sentence ordering.