information-retrieval

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tf-idf: am I understanding it right?

I am interested in doing some document clustering, and right now I am considering using TF-IDF for this.[详细]

2022-12-24 19:01 分类：问答
Text similarity function for strict document similarity

I\'m writing a piece of java software that has to make the final judgement on the similarity of two documents encoded in UTF-8.[详细]

2022-12-21 18:24 分类：问答
How do search engines conduct 'AND' operation?

Consider the following search results: Google for \'David\' - 591 millions hits in 0.28 sec Google for \'John\' - 785 millions hits in 0.18 sec[详细]

2022-12-21 03:24 分类：问答
What is non-serializable schedule? in transaction database

Can anyone explain me what isnon-serializable in transaction DB. pleas开发者_Go百科e give me an example.r1(x) r2(x)w1(y) c2 c1 is this non-serializable? Imagine this table (in Oracle):[详细]

2022-12-20 16:46 分类：问答
Java Open Source Text Mining Frameworks [closed]

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references,or expertise, but this question will likely solicit debate, a[详细]

2022-12-20 15:34 分类：问答
Self-indexing (and traditional indexing) algorithms - Implementations and advice to share?

As part of a research project I\'m currently looking for open-source implementations of self-indexing algorithms, i.e. a compressed form of the traditional inverted index yielding nice characteristics[详细]

2022-12-18 21:14 分类：问答
How should I save my data?

I have two structs like so: public struct KeyLog { Keys key; DateTime time; } public struct MouseLog { MouseEvents mouse;[详细]

2022-12-16 18:07 分类：问答
How to do related questions autopopulate

I want to get a related [things/questions] in my app, similar to what StackOverflow does, when you tab out of the Title field.[详细]

2022-12-15 19:33 分类：问答
Finding sets that are a subset of a specific set

Lets say I have 4 different values A,B,C,D with sets of identifiers attached. A={1,2,3,4,5} B={8,9,4} C={3,4,5}[详细]

2022-12-15 00:55 分类：问答
Is there a popular tool for crawling web data?

I\'m doing work on information extraction, and I need a tool to crawl data from web page , is there a popular 开发者_如何学Goone in windows?From: http://en.wikipedia.org/wiki/Web_crawler:[详细]

2022-12-14 03:49 分类：问答