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Simple sentiment analysis using regular expression
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== 輸入文字範例2 == <pre> 我喜歡 pokemon。 我不喜歡 pokemon。 說我不喜歡 pokemon 是錯誤的。 我樂愛 pokemon。 我不樂愛 pokemon。 說我不樂愛 pokemon 是錯誤的。 </pre> 三種類型情緒 # 正面情緒 (positive sentiment) #* 方式: 搜尋 (1) 包含「喜歡」、「樂愛」但是前面不緊接「不」字 (2) 包含「不喜歡」、「不樂愛」,句子中同時包含否定字串,如例子的「錯誤」。 #* 搜尋: #** 條件 (1) 搜尋: {{kbd | key =<nowiki>[^不](喜歡|樂愛)</nowiki>}}、 #** 條件 (2) 搜尋: 找到雙重否定 {{kbd | key =<nowiki>(?=.*[不](喜歡|樂愛))(?=.*錯誤).*</nowiki>}}、 #** 整合條件 (1) 和條件 (2) 的搜尋: {{kbd | key =<nowiki>[^不](喜歡|樂愛)|(?=.*[不](喜歡|樂愛))(?=.*錯誤).*</nowiki>}} # 負面情緒 (negative sentiment) #* 方式: 搜尋包含「不喜歡」、「不樂愛」,同時句子中同時不包含否定字串,如例子的「錯誤」。 #* 搜尋: {{kbd | key =<nowiki>^(?!.*錯誤).([不](喜歡|樂愛)).*$</nowiki>}} # 中性情緒 (neural sentiment) #* 方式: 搜尋不包含「喜歡」、「樂愛」 #* 搜尋: {{kbd | key =<nowiki>^((?!(喜歡|樂愛)).)*$</nowiki>}}
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