How to compare a sentence from a file with links obtained from the internet

Natasha Fokeer

Hello,

I wanted to know how do we compare a sentence from a file with links obtained from the internet.

I have already done the following things:

1. Upload a file

2. File is stored on hard disk

3. Use the file

4. Read the file

5. Extract the sentences

6. Send them to google

7. Return the links (results)

Now , i want to compare the sentences with the links obtained so as to determine plagiarism.

        i.e if the sentence matches the link exactly

               then plagarism

   store those links

         else no plagiarism

             discard the other links

Can anyone help plz? Provide some ideas of how to implement this part.

Best Regards,

Natasha

2 Replies

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kiran kumar16y ago
you can extract the sentences using string reader..then to perform google search you must use web services offered by google....download google service api and then start doing your task...
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Sam Hobbs16y ago
I am sure there are many ways but this might help get you started.

For each document, create an array of words, so that you can quickly move from a word to the next and/or previous word. Then create a map of words to a list of index values for the appearances of the word. For words in the suspected (student's) document, find the occurences in the potentially matching document(s) and then check for matches of surrounding words.

I think that will work. You will want to ignore some words, such as "a" and "the", at least for the beginning of matching sequences, but I assume you can figure that out.

And another use of the word array is that your program can use just index values for comparing words, which can make comparison faster. You would need a way for the words in all documents to have the same index values. You could do that by putting in the word array only words that are in the suspected (student's) document; words that are not in the student document don't need to be stored. Then when you process the otehr documents, if the word is not in the array of words in the student document, ignore the word; you don't need it.
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