Questions tagged [natural-language-processing]

Natural language processing (NLP)

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10
votes
4answers
17k views

Relation and difference between information retrieval and information extraction?

From Wikipedia Information retrieval is the activity of obtaining information resources relevant to an information need from a collection of information resources. Searches can be based on ...
6
votes
2answers
651 views

Are syntax and semantic just 2 structures such that one is a model of the other?

The syntax of a language is a structure. The semantic of a language is a structure. The semantic of a language is a model of its syntax. And that's all ? The duality syntax/semantic is just model ...
2
votes
1answer
67 views

What is the Best and easiest way to create a Classifer for Sentiment Analysis [closed]

Sentiment analysis using Machine Learning is a hot topic. In the present situation when a person doesn't have a problem in having the training data set then which way should we create the classifier ...
4
votes
1answer
4k views

Semantic clustering

I have a very specific question about semantic clustering. I have a list of words/phrases. I want to run an intelligent semantic clustering algorithm on this list. Please let me know what the ...
3
votes
1answer
215 views

Specific case of a ranking model

So the problem I'm solving is this: I have a list of conversations of 3 messages each (for eg. "hi", " how are you", "remind me to fix this bug" is one conversation, and my problem will have many of ...
2
votes
4answers
996 views

What aspects of linguistics are necessary or good for natural language processing? [closed]

What aspects of linguistics are necessary or good to know for natural language processing? What references do you recommend for studying those aspects? Thanks!
2
votes
2answers
142 views

Hidden Markov Model in Tagging Problem

I try to understand the details regarding using Hidden Markov Model in Tagging Problem. The best concise description that I found is the Course notes by Michal Collins. The goal is to find a ...
0
votes
0answers
53 views

How to prove that katz backing off smoothing technique is a valid probability distribution?

How to prove that katz backing off smoothing technique is a valid probability distribution? Take the example of bigram. You can go through this link for katz back off model https://en.wikipedia.org/...