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What is a good model for predicting which item the user will select from a list?

If you don't want the character input to affect the list of most probable apps, don't use the character input to predict the list of suggested apps. If you use the character input to predict a list of ...
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22 votes
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Algorithm for merging arrays while keeping their order

You can easily solve your problem by creating a directed graph $G=(V,E)$ in which $V$ is the set of all characters that appear in some input string and $E$ contains the edge $(u,v)$ if character $u$ ...
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1 vote

Permute rows of a matrix to minimize total number of inversions of its column vectors

While I do not have an answer, I have given this some thought and would like to share my ideas. I am making two simplifying assumptions but the general case shouldn't be much harder. All numbers are ...
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1 vote
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Compare solutions of counting sort

I think there are two important advantages of the original counting sort implementation. First, the original version can easily be modified in case the items (keys) being sorted includes additional ...
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2 votes

Sampling unique records from a large dataframe

A reasonable approach would be to build a hashtable that stores all unique records. Scan through the records one at a time, adding each to the hashtable if it is not already present; if it already is ...
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