Financial Comic Information Retrieval System

Financial ComicInformation Retrieval System
2010/05/28
1

Outline
Architecture of IR system
Indexing process
Query process
2

Indexing process
MySQL Database
Text Acquisition
Index Creation
Index
Financial Comics
資料來源：鉅融全球資本市場演進知識庫
http://www.global5capital.com
Text Transformation
3

Indexing process
Text Acquisition
Store the description of Financial Comics in the database
Database schema
4

Indexing process
Text Transformation
Convert text encoding to UTF-8
Stopping
Filter punctuation and number from document
Filter a single English alphabet
5

Indexing process
Index Creation
Unigram
Bigram
Word Segmentation
Yahoo! 斷章取義API
Compute tf.idf weight for index term
tf(term frequency)
idf(inverse document frequency)
6

7
idf value
tf value

Query process
MySQL Database
User Interaction
Ranking
Index
8

Query process
User Interaction
Construct the display of top 10 documents for a query
Highlight keywords
Ranking
Measure by tf∙idf weight
9

Demo
10

Financial Comic Information Retrieval System

by JhihMing on Jun 02, 2010

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