Search Results - "okapi"

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  1. 1
    (1+1)-evolutionary gradient strategy to evolve global term weights in information retrieval

    (1+1)-evolutionary gradient strategy to evolve global term weights in information retrieval by Ibrahim, Osman Ali Sadek, Landa-Silva, Dario

    Published 2016
    “…The proposed approach outperformed the Okapi BM25 and TF-ATO with DA weighting schemes methods in terms of Mean Average Precision (MAP), Average Precision (AP) and Normalized Discounted Cumulative Gain (NDCG).…”
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  2. 2
    Improved Reinforcement-Based Profile Learning For Document Filtering

    Improved Reinforcement-Based Profile Learning For Document Filtering by Mohammed Almurtadha, Yahya

    Published 2007
    “…The proposed method was evaluated and compared with three Information Filtering methods, namely Rocchio, Okapi/BSS Basic Search System and Reinf, the incremental profile learning method. …”
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  3. 3
    Evolutionary algorithms and machine learning techniques for information retrieval

    Evolutionary algorithms and machine learning techniques for information retrieval by Ibrahim, Osman Ali Sadek

    Published 2017
    “…In the two methods, partially evolved method outperformed the mathematical model (Term Frequency-Average Term Occurrence (TF-ATO)), the probabilistic model (Okapi-BM25) and the fully evolved method. The evaluation metrics for these experiments were the Mean Average Precision (MAP), the Average Precision (AP) and the Normalized Discounted Cumulative Gain (NDCG). …”
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