pattern matching with two arrays

hi,

i have an issue with comparing two array lists. array a1 has the content of a set of 500 articles. array a2 has a set of noun phrases.
i need to check each element of a2 with each element of a1.
because i want to check in how many articles does the elements of a2(noun phrases) occur.

pls help...


regards
jessie

How To Ask Questions The Smart Way

What is your issue? What have you tried? Where are you stuck? Be specific.

hi,

i can't find a way of counting the number of articles that the noun phrases occur. i have 500 articles in a list. i need this to know the document frequnecy of a noun phrase.. im new to java..pls help..

Quote:

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Originally Posted by jessie

hi,

i can't find a way of counting the number of articles that the noun phrases occur. i have 500 articles in a list. i need this to know the document frequnecy of a noun phrase.. im new to java..pls help..

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The String.indexOf( ... ) method can find a substring in a String (optionally starting the search from a certain position).

kind regards,

Jos

thanks..but i have a code like this.

Code:

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int counti=0;
                        for (int i=0;i<laststring.size();i++) {
                        for (int j=0;j<content1.size(); j++) {
                                if(content1.get(j).contains(laststring.get(i))){

                                        //System.out.println("equals..:"+laststring.get(i));
                               

                                }
                               
                                }
                       
                         
                        }

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can u tell me how i can get the count of articles in which the noun phrases occur? content1 has the text of articles and laststring has the noun phrases.

How would you do this with just one article text String and one noun phrase?

if the noun phrase appears in the article the count would be one, bcos im getting only the article count..

Quote:

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Originally Posted by KevinWorkman

How would you do this with just one article text String and one noun phrase?

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What Kevin says; I hate it when someone tries to 'knit' his code together and crafts long lists of code, zigzag-ing all over the pages, containing loops, conditional statements and, oh shudder, legions of boolean flags, only to end up giving an incorrect answer. I don't want to dig through such jungles. Use a lot of small simple, self contained methods instead.

kind regards,

Jos

Quote:

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Originally Posted by jessie

if the noun phrase appears in the article the count would be one, bcos im getting only the article count..

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Huh? I don't think that's what I asked. Forget your assignment for a second.

Pretend you have one String that contains some text, and another String that contains a word to search for in that text. How would you count the number of times the word appears in the text?

Write a method that does that, and we'll go from there.

Code:

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String text= "Unions representing Health Service Executive staff have voiced disappointment at progress made at today's talks on controversial proposals to shed 5,000 jobs at the agency by the end of the year."

String searchtext = "Health"
int count =0;

if(text.contains(searchtext)){
 count++;
}
System.out.println(count);

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What happens if you use "at" as the searchtext? Check out Jos's posts for a helpful hint.