Natural Language Processing(NLP) Challenges in NLP Part-of-speech tagging Text segmentation Word sense disambiquation Syntax ambiguity Imperfect or irregular input Speech acts Dream of Al community to have algorithms that are capable of automatically reading and obtaining knowledge from text Copynight@ 2014 Pearson Education, Inc Slide 5-16
Copyright © 2014 Pearson Education, Inc. Slide 5- 16 Natural Language Processing (NLP) ▪ Challenges in NLP ▪ Part-of-speech tagging ▪ Text segmentation ▪ Word sense disambiguation ▪ Syntax ambiguity ▪ Imperfect or irregular input ▪ Speech acts ▪ Dream of AI community ▪ to have algorithms that are capable of automatically reading and obtaining knowledge from text
Natural Language Processing(NLP) WordNet A laboriously hand-coded database of English words their definitions, sets of synonyms, and various semantic relations between synonym sets A major resource for NLP Need automation to be completed Sentiment Analysis A technique used to detect favorable and unfavorable opinions toward specific products and services SentiWordNet Copynight@ 2014 Pearson Education, Inc Slide 5-17
Copyright © 2014 Pearson Education, Inc. Slide 5- 17 Natural Language Processing (NLP) ▪ WordNet ▪ A laboriously hand-coded database of English words, their definitions, sets of synonyms, and various semantic relations between synonym sets. ▪ A major resource for NLP. ▪ Need automation to be completed. ▪ Sentiment Analysis ▪ A technique used to detect favorable and unfavorable opinions toward specific products and services ▪ SentiWordNet