Question

Permuterm indices are used for solving

Answer 1

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Answer 2

Answer:

Now that we can locate the original vocabulary words that match a wildcard query using the permuterm index, we can search up these terms in the conventional inverted index to find documents that match. As a result, we may respond to every wildcard query with a single * sign.

Explanation:

Step 1: K-grams are mapped to postings lists of all potential vocabulary items that include them in k-gram indexes. The list of K-gram posts for the bigram "ur" is depicted in the image below. The posts list's alphabetical order is significant.

Step 2: characters.The 3-grams cas, ast, and stl are all found in the word castle. The whole set of 3-grams produced for castle is $ca, cas, ast, stl, tle, le$ since we utilise the special character $ to indicate the start or end of a phrase.

Step 3: Various uses for the wildcard exist, such as the type of a parameter, field, or local variable and, on occasion, as a return type (though it is better programming practise to be more specific).

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