Simple sentiment analysis using regular expression: Difference between revisions
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Simple sentiment analysis using regular expression (edit)
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== 輸入文字範例3 == | == 輸入文字範例3 == | ||
「不」、「愉快」相隔幾字 | |||
<pre> | <pre> | ||
與 pokeman 的冒險，會有不少的爭執、不愉快 | 與 pokeman 的冒險，會有不少的爭執、不愉快 | ||
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# 正面情緒 (positive sentiment) | # 正面情緒 (positive sentiment) | ||
#* 方式: 搜尋包含「愉快」但是前面不包含「不」或「沒」字 | #* 方式: 搜尋包含「愉快」但是前面不包含「不」或「沒」字 | ||
#* 搜尋: 搜尋: {{kbd | key =<nowiki>^((?![不|沒]).)+(愉快)</nowiki>}} ([https://regex101.com/r/ABzfEj/1 線上測試]) | #* 搜尋: 搜尋: {{kbd | key =<nowiki>^((?![不|沒]).)+(愉快)</nowiki>}} 或 {{kbd | key =<nowiki>^([^不|沒])+(愉快)</nowiki>}} ([https://regex101.com/r/ABzfEj/1 線上測試]) | ||
# 負面情緒 (negative sentiment) | # 負面情緒 (negative sentiment) | ||
#* 方式: 搜尋包含「愉快」但是前面包含「不」或「沒」字 | #* 方式: 搜尋包含「愉快」但是前面包含「不」或「沒」字 | ||
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* 以標點符號當作斷點 | * 以標點符號當作斷點 | ||
延伸閱讀 | == 延伸閱讀 == | ||
* [https://en.wikipedia.org/wiki/Sentiment_analysis Sentiment analysis - Wikipedia] | |||
* [https://en.wikipedia.org/wiki/Emotion_classification Emotion classification - Wikipedia] | |||
* [http://www.rexegg.com/regex-lookarounds.html Lookahead and Lookbehind Tutorial—Tips &Tricks] | * [http://www.rexegg.com/regex-lookarounds.html Lookahead and Lookbehind Tutorial—Tips &Tricks] | ||
* [http://www.alchemyapi.com/products/alchemylanguage/sentiment-analysis Sentiment Analysis | AlchemyAPI] | * [http://www.alchemyapi.com/products/alchemylanguage/sentiment-analysis Sentiment Analysis | AlchemyAPI] | ||
[[Category:Regular expression]] [[Category:Software]] [[Category:Programming]] [[Category:Data Science]] [[Category:Search]] [[Category:String manipulation]] | [[Category:Regular expression]] [[Category:Software]] [[Category:Programming]] [[Category:Data Science]] [[Category:Search]] [[Category:String manipulation]] | ||