News Story Clustering with Bag of Word Model and Affinity Propagation
碩士 === 國立中正大學 === 資訊工程研究所 === 99 === The 24-hour news TV channels repeat the same news stories again and again. To skip browsing repeated news stories, we propose a framework to cluster topic-related news stories together, and thus facilitate efficient browsing and summarization. Our proposed system...
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ndltd-TW-099CCU003920602016-04-13T04:16:57Z http://ndltd.ncl.edu.tw/handle/90083697719839941592 News Story Clustering with Bag of Word Model and Affinity Propagation 基於袋字模型及親和性互動演算法之新聞報導分群 Chin-Chao Huang 黃朝琴 碩士 國立中正大學 資訊工程研究所 99 The 24-hour news TV channels repeat the same news stories again and again. To skip browsing repeated news stories, we propose a framework to cluster topic-related news stories together, and thus facilitate efficient browsing and summarization. Our proposed system continuously monitors news broadcast, and automatically segments news videos into shots, removes commercial breaks, and detects anchorpersons. Each news story is represented by the bag of visual word (BoW) model, the bag of trajectory (BoT) model to describe what and how objects present in it. We also utilize concept detectors to detect concepts in news stories, and apply them to construct semantic features. We measure similarity between news stories by the earth mover’s distance, and the affinity propagation algorithm is used to cluster stories of the same topic together. Four news videos captured from Taiwanese news TV channels are studied in this thesis. We evaluate news story clustering in a news TV channel and across different channels. We also show performance of automatic news story segmentation. We verify that the news story clustering problem is much harder than near-duplicate detection and video copy detection, because video content of news stories with the same topic may vary. With the proposed methods, we conclude that various news stories can be effectively clustered. Wei-Ta Chu 朱威達 2011 學位論文 ; thesis 76 en_US |
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碩士 === 國立中正大學 === 資訊工程研究所 === 99 === The 24-hour news TV channels repeat the same news stories again and again. To skip browsing repeated news stories, we propose a framework to cluster topic-related news stories together, and thus facilitate efficient browsing and summarization. Our proposed system continuously monitors news broadcast, and automatically segments news videos into shots, removes commercial breaks, and detects anchorpersons. Each news story is represented by the bag of visual word (BoW) model, the bag of trajectory (BoT) model to describe what and how objects present in it. We also utilize concept detectors to detect concepts in news stories, and apply them to construct semantic features. We measure similarity between news stories by the earth mover’s distance, and the affinity propagation algorithm is used to cluster stories of the same topic together.
Four news videos captured from Taiwanese news TV channels are studied in this thesis. We evaluate news story clustering in a news TV channel and across different channels. We also show performance of automatic news story segmentation. We verify that the news story clustering problem is much harder than near-duplicate detection and video copy detection, because video content of news stories with the same topic may vary. With the proposed methods, we conclude that various news stories can be effectively clustered.
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author2 |
Wei-Ta Chu |
author_facet |
Wei-Ta Chu Chin-Chao Huang 黃朝琴 |
author |
Chin-Chao Huang 黃朝琴 |
spellingShingle |
Chin-Chao Huang 黃朝琴 News Story Clustering with Bag of Word Model and Affinity Propagation |
author_sort |
Chin-Chao Huang |
title |
News Story Clustering with Bag of Word Model and Affinity Propagation |
title_short |
News Story Clustering with Bag of Word Model and Affinity Propagation |
title_full |
News Story Clustering with Bag of Word Model and Affinity Propagation |
title_fullStr |
News Story Clustering with Bag of Word Model and Affinity Propagation |
title_full_unstemmed |
News Story Clustering with Bag of Word Model and Affinity Propagation |
title_sort |
news story clustering with bag of word model and affinity propagation |
publishDate |
2011 |
url |
http://ndltd.ncl.edu.tw/handle/90083697719839941592 |
work_keys_str_mv |
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