NLP
Regex
- regexper - Regular Expression Visualization Site.
Lookahead & lookbehind
Given the string foobarbarfoo
| Regex | Description |
|---|---|
| bar(?=bar) | finds the 1st bar ("bar" which has "bar" after it) |
| bar(?!bar) | finds the 2nd bar ("bar" which does not have "bar" after it) |
| (?<=foo)bar | finds the 1st bar ("bar" which has "foo" before it) |
| (?<!foo)bar | finds the 2nd bar ("bar" which does not have "foo" before it) |
Tools
- Automatic text summarizer
- wisesight-sentiment - Thai sentiment analysis.