crodas/text-rank

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Extract relevant keywords from a given text

Maintainers

Details

github.com/crodas/TextRank

Source

Issues

Installs: 49 840

Dependents: 1

Suggesters: 0

Security: 0

Stars: 104

Watchers: 6

Forks: 25

Open Issues: 5

dev-master 2013-12-08 07:56 UTC

Requires

Suggests

  • ext-stem: Improves keywords selection

Unknown License 8c113c5b0cae3eeb853891ef5afdf27d678a5940

  • César D. Rodas <crodas.woop@php.net>

This package is auto-updated.

Last update: 2024-12-12 19:07:40 UTC

README

extract relevant keywords from a given text

How to use it

In order to use the class, you must instance a Config object.

<?php

require __DIR__ . "/vendor/autoload.php";

use \crodas\TextRank\Config;
use \crodas\TextRank\TextRank;

$config   = new Config;
$textrank = new TextRank($config);

$keywords = $textrank->getKeywords($some_long_text);

var_dump($keywords);

It is possible to get better results by adding few information about the language (stopword list, stemmer with pecl install stem).

<?php

require __DIR__ . "/vendor/autoload.php";

use \crodas\TextRank\Config;
use \crodas\TextRank\TextRank;
use \crodas\TextRank\Stopword;

$config = new Config;
$config->addListener(new Stopword);

$textrank = new TextRank($config);
$keywords = $textrank->getKeywords($some_long_text);

var_dump($keywords);

By doing this it will detect the language of the text and will remove common words (from the stopword list). If ext-stem is available the results will be even better.

Summarize large texts

This class is also capable of summarizing long texts

$config = new \crodas\TextRank\Config;
$config->addListener(new \crodas\TextRank\Stopword);
$analizer = new \crodas\TextRank\Summary($config);
$summary = $analizer->getSummary($text);

$summary is at most 5% of the sentences of the text.