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Akbar Formula Calculator
Akbar Formula Calculator
Akbar is a term that can refer to different things depending on the context. However, based on the example you provided, I assume that you are referring to a concept in the field of information retrieval and search engines.
- score(D, Q) = Σ w(q) * tf(q, D) * idf(q)
- Here is an example of how the Akbar formula can be used to rank documents for a query:
- Suppose we have a document collection that consists of the following three documents:
- Document 1:
- "The quick brown fox jumps over the lazy dog."
- Document 2:
- "The dog is a loyal and friendly animal."
- Document 3:
- "Cats and dogs are popular pets."
- For document 1:
- score(D1, Q) = w("dog") * tf("dog", D1) * idf("dog") = 1 * 1 * log(3/2) = 0.4055
- For document 2:
- score(D2, Q) = w("dog") * tf("dog", D2) * idf("dog") = 1 * 2 * log(3/2) = 0.8111
- For document 3:
- score(D3, Q) = w("dog") * tf("dog", D3) * idf("dog") = 1 * 1 * log(3/2) = 0.4055
- Therefore, document 2 would be ranked the highest because it has the highest score based on the Akbar formula.
In information retrieval, Akbar's formula is a term frequency-based scoring function that is used to rank documents based on their relevance to a query.
The formula is as follows:
where D represents a document, Q represents a query, w(q) represents a weight assigned to the query term q, tf(q, D) represents the frequency of q in document D, and idf(q) represents the inverse document frequency of q across the entire document collection.
The idea behind the formula is that documents that contain more occurrences of the query terms, and whose query terms are less common in the entire document collection, are more likely to be relevant to the query. The weight w(q) can be used to adjust the importance of different query terms based on their significance to the query.