Help to choose algorithm for computing difference between 2 texts?












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I have a task to create a tool, which will be able to find articles-duplicates of a given reference article.
I know word vectorization (tf-idf,word2vec), RNN methods, but i can not choose something suitable for my situation.



My requirments:




  • data are being collected on the fly (program parses articles from web sites, so i don't have regular DB with collection of texts)

  • there is a reference text, whose copies need to be found

  • copies could be copypasted, partially copypasted (by paragraphs) or paraphrased


  • reference-vs-copy comparison algorithm is preferable, but not required (instead of reference-vs-corps)

  • algorithm shouldn't do deep semantic analyzis, only kind of word counting, word vectorization, substring search

  • instead one algorithm, i can use a set of herurisitcs

  • algorithms can do false positive dicisions


I come up with such ideas:




  1. download pretrained word2vec and compare means of word-vectors

  2. Build a dictionary word->count from every text and compare it to reference dictionary

  3. collect about 100 texts, vectorize them according to tf-idf and find closest to the reference


I will apreciate, if you will point specific algorithms, libs, examples based on key-word extractions, dummy substring search, line difference comparison for python or CLI.









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    $begingroup$


    I have a task to create a tool, which will be able to find articles-duplicates of a given reference article.
    I know word vectorization (tf-idf,word2vec), RNN methods, but i can not choose something suitable for my situation.



    My requirments:




    • data are being collected on the fly (program parses articles from web sites, so i don't have regular DB with collection of texts)

    • there is a reference text, whose copies need to be found

    • copies could be copypasted, partially copypasted (by paragraphs) or paraphrased


    • reference-vs-copy comparison algorithm is preferable, but not required (instead of reference-vs-corps)

    • algorithm shouldn't do deep semantic analyzis, only kind of word counting, word vectorization, substring search

    • instead one algorithm, i can use a set of herurisitcs

    • algorithms can do false positive dicisions


    I come up with such ideas:




    1. download pretrained word2vec and compare means of word-vectors

    2. Build a dictionary word->count from every text and compare it to reference dictionary

    3. collect about 100 texts, vectorize them according to tf-idf and find closest to the reference


    I will apreciate, if you will point specific algorithms, libs, examples based on key-word extractions, dummy substring search, line difference comparison for python or CLI.









    share







    New contributor




    Дмитрий is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.







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      0





      $begingroup$


      I have a task to create a tool, which will be able to find articles-duplicates of a given reference article.
      I know word vectorization (tf-idf,word2vec), RNN methods, but i can not choose something suitable for my situation.



      My requirments:




      • data are being collected on the fly (program parses articles from web sites, so i don't have regular DB with collection of texts)

      • there is a reference text, whose copies need to be found

      • copies could be copypasted, partially copypasted (by paragraphs) or paraphrased


      • reference-vs-copy comparison algorithm is preferable, but not required (instead of reference-vs-corps)

      • algorithm shouldn't do deep semantic analyzis, only kind of word counting, word vectorization, substring search

      • instead one algorithm, i can use a set of herurisitcs

      • algorithms can do false positive dicisions


      I come up with such ideas:




      1. download pretrained word2vec and compare means of word-vectors

      2. Build a dictionary word->count from every text and compare it to reference dictionary

      3. collect about 100 texts, vectorize them according to tf-idf and find closest to the reference


      I will apreciate, if you will point specific algorithms, libs, examples based on key-word extractions, dummy substring search, line difference comparison for python or CLI.









      share







      New contributor




      Дмитрий is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.







      $endgroup$




      I have a task to create a tool, which will be able to find articles-duplicates of a given reference article.
      I know word vectorization (tf-idf,word2vec), RNN methods, but i can not choose something suitable for my situation.



      My requirments:




      • data are being collected on the fly (program parses articles from web sites, so i don't have regular DB with collection of texts)

      • there is a reference text, whose copies need to be found

      • copies could be copypasted, partially copypasted (by paragraphs) or paraphrased


      • reference-vs-copy comparison algorithm is preferable, but not required (instead of reference-vs-corps)

      • algorithm shouldn't do deep semantic analyzis, only kind of word counting, word vectorization, substring search

      • instead one algorithm, i can use a set of herurisitcs

      • algorithms can do false positive dicisions


      I come up with such ideas:




      1. download pretrained word2vec and compare means of word-vectors

      2. Build a dictionary word->count from every text and compare it to reference dictionary

      3. collect about 100 texts, vectorize them according to tf-idf and find closest to the reference


      I will apreciate, if you will point specific algorithms, libs, examples based on key-word extractions, dummy substring search, line difference comparison for python or CLI.







      python nlp





      share







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      Check out our Code of Conduct.










      share







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      Дмитрий is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.








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      asked 4 mins ago









      ДмитрийДмитрий

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