这种方法能够保证文摘对多文档集合的各个重要子主题有较好的反映，而文摘本身冗余度较低。
Summary generated by this method can reflect all the important subtopics well, and also has a lower redundancy.
这种方法能够保证文摘对多文档集合的各个重要子主题有较好的反映，而文摘本身冗余度较低。
Summary generated by this method can reflect all the important subtopics well, and also has a lower redundancy.
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