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Home > Machine Learning Guide > 18. Natural Language Processing 1
Podcast: Machine Learning Guide
Episode:

18. Natural Language Processing 1
Category: Technology
Duration: 00:57:48
Publish Date: 2017-06-25 19:06:41
Description:

Introduction to Natural Language Processing (NLP) topics.

## Resources - Speech and Language Processing (http://amzn.to/2uZaNyg) `book:hard` comprehensive classical-NLP bible - Stanford NLP YouTube (https://www.youtube.com/playlist?list=PL6397E4B26D00A269) `course|audio:medium` - NLTK Book (http://www.nltk.org/book) `book:medium` - Convert video to audio: ** mp4 => mp3: `for f in *.mp4; do ffmpeg -i "$f" "${f%.mp4}.mp3" && rm "$f"; done` ** youtube => mp3: setup youtube-dl (https://github.com/rg3/youtube-dl) and run `youtube-dl -x youtube.com/playlist?list=`

## Errata 22:21 "cat & car different by one word" should be "different by one letter"

## Episode Syntax vs Semantics

Parts - Corpus - Lexicon - Morphology ** Lemmas & Stems (reduce morphological variation; lemmatization more sophisticated) ** Tokens ** Stop words ** Edit-distance ** Word sense disambiguation

Syntax / Tasks - Info Extraction (POS, NER, Relationship extraction) - Parsing

Goals - Spell check - Classification ** Tagging (topic modeling / keyword extraction) ** Sentiment analysis - Search / relevance, document similarity - Natural language understanding ** Question answering ** Textual entailment ** Machine Translation (AI-complete) ** NLU vs NLP - Natural language generation ** Image captioning ** Chatbots ** Automatic summarization - Won't cover ** Optical character recognition (OCR) ** Speech (TTS, STT, Segmentation, Diarization)
Total Play: 0

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