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Intra-Speaker Topic Modeling for Improved Multi-Party Meeting Summarization with Integrated Random Walk

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Intra-Speaker Topic Modeling for

Improved Multi-Party Meeting Summarization with Integrated Random Walk

Yun-Nung Chen and Florian Metze

• Important utterances are topically/lexically similar to each other

• Utterances from the same speaker usually focus on similar topics

 Construct a graph to represent utterances in the document (node: utterance, edge: weighted by topical/lexical similarity) Use the graph to re-compute the importance

Topic Model

(ex. PLSA, LDA)

U2 97 U3 83

:

Multi-Party Corpus

ASR Topical Distribution

Manual

Integrated Random Walk

Summary

Rerank

U5 93 U2 88 Summary :

LTE

(baseline)

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