bayesian

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How to implement TF_IDF feature weighting with Naive Bayes

I\'m trying to implement the naive Bayes classifier for sentiment analysis. I plan to use the TF-IDF weighting measure. I\'m just a little stuck 开发者_如何转开发now. NB generally uses the word(featur[详细]

2023-03-12 04:18 分类：问答
What is a good open source package for building flexible spam detection on a large Rails site?

My site is getting larger and it\'s starting to attract a lot of spam through various channels.The site has a lot of different types of UGC (profiles, forums, blog comments, status updates, private me[详细]

2023-03-11 10:36 分类：问答
how to predict quality of data?

I\'m very sorry if I\'m wording this wrong in advance but I have a large dataset and I am trying to analyze it, but most of the data is not correct and need some help figuring out how to select the co[详细]

2023-03-10 16:43 分类：问答
Ideal algorithmic approach -- Rule-engine / Decision-Tree and some Learning logic?

My requirement is probably close to what one expects of an \"Expert System\". And looking for the simplest solution, that can give me real-time or near-real time inference, with some offline (non-real[详细]

2023-03-08 00:55 分类：问答
Log likelihood to implement Naive Bayes for Text Classification

I am implementing Naive Bayes algorithm for text classification. I have ~1000 documents for training and 400 documents for testing. I think I\'ve implemented training part correctly, but I am confused[详细]

2023-02-20 15:49 分类：问答
Document Analysis and Tagging

Let\'s say I have a bunch of essays (thousands) that I want to tag, categorize, etc.Ideally, I\'d like to train something by manually categorizing/tagging a few hundred, and then let the thing loose.[详细]

2023-02-13 00:42 分类：问答
parameter optimization for classifier algorithm

It is said that different algorithms have different parameters. I don\'t really see this as true, say if it is a tree decision algorithm and naive bayesian algorithm, what开发者_运维知识库 is the para[详细]

2023-02-12 21:32 分类：问答
wondering if Bayes classifier is right approach?

I\'m wondering if a Bayes classifier makes sense for an application where the same phrase \"served cold\" (for example) is \"good\" when associated some things (beer, soda) but \"bad\" when related to[详细]

2023-02-08 12:44 分类：问答
Any framework for real-time correlation/analysis of event-stream (aka CEP) in Erlang?

Would like to analyze a stream of events, sharing certain characteristics (s.a. a common source), and within a given time-window, ultimately to correlate those multiple events and draw some inference[详细]

2023-01-27 13:59 分类：问答
How to filter emails using content and subject?

In my application(C#) i need to filter emails based on their content. If an email is a double-op开发者_如何学Ct in need to send it to a specified email address if it\'s a normal email i should send it[详细]

2023-01-24 07:03 分类：问答