Sentiment analysis is a branch of natural language processing (NLP) that seeks to quantify positive vs negative perceptions; akin to "tone" analysis.

情绪分析是自然语言处理的一个分支(NLP)，旨在量化积极和消极感知力；类似于“音调”分析。

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Many commercial and open source tools are available that perform natural language processing (NLP). Here are some of most popular open source packages.

有很多商业和开源工具可用于执行自然语言处理(nlp)。

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Two methods for collecting the structured data are discussed, which are natural language processing (NLP) and structured data entry (SDE).

阐述了两种结构化数据采集的方法：自然语言处理(nlp)和结构化数据输入(SDE)。

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Dr. Riskin is the CEO of Health Fidelity, provider of a commercial-grade, cloud-based natural language processing (NLP) service, and is also a Consulting Assistant Professor of Surgery at Stanford University.

FORBES: The Next Revolution in Healthcare