大數據在金融界之應用 - Big data in finance Johan...

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Big data in finance
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Johan Bollen Twitter mood predicts the stock market. 德爾溫資本市場
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情感分析技術 Sentiment Analysis 從大量的文字中 ,辨識出正面與 負面等情緒,讓 這些結果產生出 商業價值
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1. 通過 Twitter 感知市場 情緒
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需克服的問題 (1) 嘲諷的句子 (2) 不同語言有不同文法 (3) 火星文
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用數據量化人們的情感 1.Opinion Finder: 積極與消極 2.Google-Profile of Mood States : 喜悅、悲慘、冷靜、緊張
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  • Fall '12
  • BrianWang

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