Name
Abstract | ||
|---|---|---|
We propose a preprocessing method for Web mining which, given semi-structured documents with the same structure and style, distinguishes useless parts and non-useless parts in each document without any knowledge on the documents. It is based on a simple idea that any n-gram is useless if it appears frequently. To decide an appropriate pair of length n and frequency a, we introduce a new statistic measure alternation count. It is the number of alternations between useless parts and non-useless parts. Given news articles written in English or Japanese with some non-articles, the algorithm eliminates frequent n-grams used for the structure and style of articles and extracts the news contents and headlines with more than 97% accuracy if articles are collected from the same site. Even if input articles are collected from different sites, the algorithm extracts contents of articles from these sites with at least 95% accuracy. Thus, the algorithm does not depend on the language, is robust for noises, and is applicable to multiple formats. |
Year | DOI | Venue |
|---|---|---|
2001 | 10.1007/3-540-45650-3_13 | Discovery Science |
Keywords | Field | DocType |
distinguishes useless part,useless part,news content,semi-structured documents,algorithm extracts content,appropriate pair,non-useless part,useless parts,alternation counts,news article,different site,web mining,frequent n-grams | Data mining,Web mining,Statistic,Computer science,Document Structure Description,Preprocessor,HTML,Hash table,Markup language,Alternation (linguistics) | Conference |
ISBN | Citations | PageRank |
3-540-42956-5 | 5 | 0.60 |
References | Authors | |
14 | 3 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Daisuke Ikeda | 1 | 52 | 7.95 |
| Yasuhiro Yamada | 2 | 52 | 10.97 |
| Sachio Hirokawa | 3 | 216 | 58.68 |