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Multilingual document mining and navigation using self-organizing maps

Multilingual document mining and navigation using self-organizing maps. Presenter : Keng -Yu Lin Author : Hsin -Chang Yang , Han-Wei Hsiao , Chung-Hong Lee IPM .2011. Outlines. Motivation Objectives Methodology Experiments Conclusions Comments. Motivation.

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Multilingual document mining and navigation using self-organizing maps

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  1. Multilingual document mining and navigation using self-organizing maps Presenter : Keng-Yu Lin Author : Hsin-Chang Yang , Han-Wei Hsiao , Chung-Hong Lee IPM .2011

  2. Outlines • Motivation • Objectives • Methodology • Experiments • Conclusions • Comments

  3. Motivation Monolingual interface may limit the spread of users who unfamiliar with the language.

  4. Objectives • To propose an approach that could automatically arrange multilingual Web pages into a multilingual Web directory to break the language barriers in Web navigation.

  5. Methodology • Preprocessing • Word segmentation • Stopword elimination • Stemming • Keyword selection • Encoding • All keywords of all documents are collected to build a vocabulary VE. • A document is encoded into a binary vector according to those keywords that occurred in it. Ex: Xi=[0,1,1,0,1,0,1,1]

  6. Methodology => document cluster map (DCM) => keyword cluster map (KCM) • SOM Algorithm

  7. Methodology Determining dominating clusters algorithm

  8. Methodology (C1,C3)=4 (C3,C5)=3 (C1,C5)=3 PK=(4+3+3)/3=3.33 Evaluation of quality of generated hierarchies

  9. Methodology • Multilingual web directory generation • Semantic similarity • Structural similarity

  10. Experiments

  11. Conclusions The approach is fully automated and requires no human intervention. The result of the alignment can be applied to tackle tasks such as multilingual information retrieval.

  12. Comments • Advantage • The research result can help people to break language barrier. • Applications • Multilingual information retrieval.

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