スライド 1

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1 HotMiner:Discovering Hot Topics from Dirty Text Malu Castellanos

2 Overview

3 Overview

4 Introduction

5 Introduction Hewlett-Packard 2 Search Case case

6 Introduction Search Log Postfiltering

7 Introduction Case Log

8 Part I:Mining Search Logs SearchView,

9 Preprocessing HP 3 Usage) DoSearch ReviewResultsDoc DoSearch Usage,Query Web search view

10 Preprocessing V) Wij i 2 k-means

11 Postfiltering SearchView:: HTML

12 Postfiltering Probability Distribution 2 w = k ij ij [ tfij log( n / df j )] Wij TF IDF n tfij i j k i Flexibility to augument K di dj AVG_SIM(di) AVG_SIM(C

13 Posftifltering AVG_SIM(dij S(Ck) AVG_SIM(di) Z Z(AVG_SIM(di)) = [ AVG_SIM(di -AVG_SIM(Ck)] / S(Ck)

14 Postfiltering L Postfiltering

15 Experimental Result HotMiner HP 100 case A. B. A B:

16 Experimental Result HotMiner WEB

17 Experimental Result SOM_PAK Fig6.3 SOM SOM

18 Experimental Result TD IDF a e a,c,e

19 Experimental Result A. B. B

20 Experimental Result Shared Memory memory shared memory Shared Memory Memory shared Shared Memory Memory shared

21 Experimental Result Fig6.4 patch HP-UX for Y2K compliance Fig6.5 sendmail mail unknown sendmail SOM (Fig6.4 Fig.6.6 Y2K

22 Experimental Result SearchView ContentView AVG_SIM(Ck) S(Ck)

23 PartII Mining Case Log Search Log Case log Search Log Case Case

24 Technical Description case

25 Thesaurus Assistant

26 Thesaurus Assistant Smith-Waterman Thesaurus Creation

27 Sentence Identifier elsif

28 Sentence Identifier

29 Sentence Extractor IR P149

30 TF/IDF Sentence Extractor P149

31 Sentence Extractor case

32 Sentence Extractor IR 2 2 P151

33 Experimental Results 5000 case 15 case

34 Mining Case Excerpts for Hot Topics 5 Fig.6.9) case case case SearchLog SOM Searchlog case F-measure

35 Conclusions Hotminer Search Case HP Search Log Case Log:

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