Questions tagged [search-theory]

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How to find a cost function with only a statistical measure of success?

Using the U.S.A. as a loose analogy, we have search algorithms that find the names and number of States adjacent to a given State (containing a selected city). The goal is to minimize the number of "...
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113 views

A/B split/bucket testing with three or more variants

Let's say I have three search engine e.g. search engine A, search engine B and search engine C. Each search engine is given a set of queries Q (e.g. apple,banana,carrot....), this set Q remains the ...
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Has there been any research work done on stochastic display of search engine results?

When using search engine query logs to make use of click-through data to order search results, there is a well-known position bias. This position bias gives search engine users a tendency to click on ...
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TF-IDF vector contents when computing cosine similarity for document search

Say you're trying to find the most similar document in a corpus to a given search query. I've seen some examples create TF-IDF vectors that are the length of the given query, and some create TF-IDF ...
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Pairwise Learning to Rank - detecting detrimental changes

The idea behind Pairwise Learning to Rank is that if you have a set of search results then a clicked on result can be used as training example to indicate that it should rank more highly that the ...