How does this message board find similar threads?

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The discussion centers on the mechanism behind the display of similar threads at the bottom of forum posts. Participants speculate that the website likely employs keyword searching algorithms to generate these suggestions, possibly using words from thread titles. There is mention of IBM's research into developing a "context" search algorithm that aims to understand the context of searches rather than just relying on keywords and synonyms. However, it is suggested that this forum may not yet utilize such advanced technology. One user expresses interest in examining the vBulletin source code to better understand the search functionality, hypothesizing that it may involve full-text searches of initial posts. The conversation highlights the potential for more sophisticated search methods in the future, akin to concepts like the semantic web.
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I've noticed that at the bottom of each post it shows similar threads, and the matches are pretty good.

Does anyone know how it goes about doing this? Does it summarize an entire thread? Does it use tags?
 
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Pretty good question... I'd imagine that it just simply uses key-word searching algorithms. IBM's Computer Science Research and Development department are talking about trying to develop a "context" search algorithm instead. So, instead of getting a search engine which might use your keyword and synonyms for the word, you have an algorithm which (somehow) understands the context of what you're searching for.
I doubt that this website has that, since it's still in development, but they might have something nifty.
 
It just picks up a random word from the thread title.
 
michinobu said:
Pretty good question... I'd imagine that it just simply uses key-word searching algorithms. IBM's Computer Science Research and Development department are talking about trying to develop a "context" search algorithm instead. So, instead of getting a search engine which might use your keyword and synonyms for the word, you have an algorithm which (somehow) understands the context of what you're searching for.
I doubt that this website has that, since it's still in development, but they might have something nifty.

Cool concept IBM has there.. kind of like semantic web.

Maybe one day when I have time I'll take a peak at the vBulletin source code. I'm thinking it does a full-text search using the words in the title (eg: "how + does + this + message...") onto all initial posts of threads.
 

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