Introduction to NLP: The Noisy Channel Model and Applications

Slide Note

Delve into the intriguing field of Natural Language Processing (NLP) with an exploration of the Noisy Channel Model. Understand how encoding, decoding, and translation models play a crucial role in language processing tasks. Explore examples, such as translating phrases and correcting spelling, to grasp the model's application in handwriting recognition, text generation, and machine translation. Discover the significance of the Noisy Channel Model in modern communication technologies and its potential for enhancing various linguistic processes.

bolender_i Follow

Uploaded on Mar 02, 2025 | 1 Views

Download Presentation

Please find below an Image/Link to download the presentation.

The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.

You are allowed to download the files provided on this website for personal or commercial use, subject to the condition that they are used lawfully. All files are the property of their respective owners.

Download Presentation

The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.

E N D

Presentation Transcript

NLP

Introduction to NLP The Noisy Channel Model

The Noisy Channel Model Example: Input: Written English (X) Encoder: garbles the input (X->Y) Output: Spoken English (Y) More examples: Grammatical English to English with mistakes English to bitmaps (characters) P(X,Y) = P(X)P(Y|X)

Encoding and Decoding Given f, guess e f e e E F encoder F E decoder e = argmax P(e|f) = argmax P(f|e) P(e) e e translation model language model

Example Translate la maison blanche P(f|e) P(e) cat rat piano house white the the house white the red house the small cat the white house

Example Translate la maison blanche P(f|e) - + P(e) - - cat rat piano house white the the house white the red house the small cat the white house

Example Translate la maison blanche P(f|e) - + + - - + P(e) - - - + + + cat rat piano house white the the house white the red house the small cat the white house

Uses of the Noisy Channel Model Handwriting recognition Text generation Text summarization Machine translation Spelling correction See separate lecture on text similarity and edit distance