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  2. Discounted cumulative gain - Wikipedia

    en.wikipedia.org/wiki/Discounted_cumulative_gain

    For example, if a query returns two results with scores 1,1,1 and 1,1,1,1,1 respectively, both would be considered equally good, assuming ideal DCG is computed to rank 3 for the former and rank 5 for the latter. One way to take into account this limitation is to enforce a fixed set size for the result set and use minimum scores for the missing ...

  3. Hierarchical and recursive queries in SQL - Wikipedia

    en.wikipedia.org/wiki/Hierarchical_and_recursive...

    In SQL:1999 a recursive (CTE) query may appear anywhere a query is allowed. It's possible, for example, to name the result using CREATE [ RECURSIVE ] VIEW . [ 16 ] Using a CTE inside an INSERT INTO , one can populate a table with data generated from a recursive query; random data generation is possible using this technique without using any ...

  4. Ranking (statistics) - Wikipedia

    en.wikipedia.org/wiki/Ranking_(statistics)

    Microsoft Excel provides two ranking functions, the Rank.EQ function which assigns competition ranks ("1224") and the Rank.AVG function which assigns fractional ranks ("1 2.5 2.5 4"). The functions have the order argument, [1] which is by default is set to descending, i.e. the largest number will have a rank 1. This is generally uncommon for ...

  5. Ranking (information retrieval) - Wikipedia

    en.wikipedia.org/wiki/Ranking_(information...

    Ranking of query is one of the fundamental problems in information retrieval (IR), [1] the scientific/engineering discipline behind search engines. [2] Given a query q and a collection D of documents that match the query, the problem is to rank, that is, sort, the documents in D according to some criterion so that the "best" results appear early in the result list displayed to the user.

  6. Learning to rank - Wikipedia

    en.wikipedia.org/wiki/Learning_to_rank

    Tie-Yan Liu of Microsoft Research Asia has analyzed existing algorithms for learning to rank problems in his book Learning to Rank for Information Retrieval. [1] He categorized them into three groups by their input spaces, output spaces, hypothesis spaces (the core function of the model) and loss functions : the pointwise, pairwise, and ...

  7. Ranking the potential upsets in the College Football Playoff

    www.aol.com/sports/ranking-potential-upsets...

    3. #9 Tennessee at #8 Ohio State Line: Ohio State -7.5. The potential: Speaking of more to lose … Ryan Day might just be coaching for his job in these playoffs. Fortunately for him, the team he ...

  8. 9 Items You Should Actually Store In The Freezer, According ...

    www.aol.com/9-items-actually-store-freezer...

    Whole Grains. Any grains that include the kernel are ideal to store in the freezer to extend their shelf-life and preserve their nutrition. This includes classic stone-ground Southern grits as ...

  9. Ranking Every ‘Below Deck’ Show From Most to Least Memorable ...

    www.aol.com/entertainment/ranking-every-below...

    The original series quickly became a major success for the network, spawning Below Deck, which debuted on Bravo in 2013, introduced viewers to various crew members who reside and work on a ...

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