Hygge
2024-08-16 17:26老師你好，text analytics針對(duì)unstructured text，可以解釋一下這是什么意思嗎？
所屬：CFA Level I > Quantitative Methods 視頻位置 相關(guān)試題
來源： 視頻位置 相關(guān)試題
1個(gè)回答
葛王璐助教
2024-08-16 21:29
該回答已被題主采納
同學(xué)你好，原版書上對(duì)text analytics and NLP的描述如下：
Text analytics involves the use of computer programs to analyze and derive meaning typically from large, unstructured text- or voice-based datasets, such as company filings, written reports, quarterly earnings calls, social media, email, internet postings, and surveys. Text analytics includes using computer programs to perform automated infor- mation retrieval from different, unrelated sources to aid the decision-making process. More analytical usage includes lexical analysis, or the analysis of word frequency in a document and pattern recognition based on key words and phrases. Text analytics could be used in predictive analysis to help identify indicators of future performance, such as consumer sentiment.即文本分析主要就是通過計(jì)算機(jī)程序從海量的非結(jié)構(gòu)化信息中訓(xùn)練提取有用的信息，目前Natural language processing (NLP) 技術(shù)已經(jīng)非常成熟了
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