antoineaugusti/laravel-sentiment-analysis

A Laravel wrapper to perform sentiment analysis over an English sentence

Laravel Sentiment Analysis

Introduction

A Laravel wrapper for phpInsight.

Installation

PHP 7.2+, and Composer are required.

To get the latest version of Laravel Sentiment Analysis, run the command composer require antoineaugusti/laravel-sentiment-analysis.

You can register the SentimentAnalysis facade in the aliases key of your config/app.php file if you like.

'SentimentAnalysis' => Antoineaugusti\LaravelSentimentAnalysis\SentimentAnalysis::class,

Looking for a Laravel 5 compatible version?

Checkout the 1.2 version, installable by requiring "antoineaugusti/laravel-sentiment-analysis": "2.2".

Looking for a Laravel 4 compatible version?

Checkout the 1.2 version, installable by requiring "antoineaugusti/laravel-sentiment-analysis": "1.2".

Usage

Sentences can be classified as negative, neutral or positive. The only supported language for the moment is English.

Custom Dictionary

You can provide a custom dictionary by providing the path the folder when you create a new SentimentAnalysis object.

$analysis = new SentimentAnalysis(storage_path('custom_dictionary/'));

Please look at the PHPInsight data files to see how you should name and structure your files.

SentimentAnalysis::isNegative($sentence)

Returns a boolean telling if the given $sentence is classified as negative.

SentimentAnalysis::isNeutral($sentence)

Returns a boolean telling if the given $sentence is classified as neutral.

SentimentAnalysis::isPositive($sentence)

Returns a boolean telling if the given $sentence is classified as positive.

SentimentAnalysis::decision($sentence)

Get the sentiment of a sentence. Will return negative, neutral or positive

SentimentAnalysis::score($sentence)

Get the confidence of a decision for a result. The closer to 1, the better!

SentimentAnalysis::scores($sentence)

Get the score value for each decision. Returns an array. The closer to 1, the better! Return example:

['negative' => 0.5, 'neutral' => 0.25, 'positive' => 0.25]

laravel-sentiment-analysis's Issues

Call to undefined method Illuminate\Foundation\Application::share()

Getting this error on Laravel 5.4

FatalThrowableError in LaravelSentimentAnalysisServiceProvider.php line 16: Call to undefined method Illuminate\Foundation\Application::share() and version 2.1 of the wrapper

Backport Custom Dictionaries

Hey @AntoineAugusti I'm not really sure how I go about merging into a tag/release.

I've back ported the changes into my fork on a v.1.1.2 branch and tagged the release.

Do you have to create a branch in this repo and I can create pull request for it and then tag the release?

SentimentAnalysis::score() does not do what it says

Like a lot of API, this library computes the "chances" of the statement being positive, neutral and negative. For example, scores() can return:

@example ['negative' => 0.5, 'neutral' => 0.25, 'positive' => 0.25]

So, you would expect the score() function in this case to be less than 0.5 (ie. negative). It says:

    /**
     * Get the confidence of a decision for a result. The closer to 1, the better.
     *
     * @param string $string The given sentence
     *
     * @return float The confidence of a decision for a result. The close to 1, the better
     */

However looking at the code:

    public function score($string)
    {
        $scores = $this->scores($string);
        return max($scores);
    }

one can see that this will simply return 0.5, suggesting the score is "neutral".

Returns wrong sentiment for PHP 7

This package used to work up well till we had PHP 5.6 but after we upgraded to PHP 7, phrases that were "neutral" are being returned as "positive". Not sure why?

All possible neutral phrases like:
"sample test line"
"maths in science"
"men and women in a line"

Any ideas

Another language?

Is it possible to change language?

Instructions to get it work after composer update?

I do not understand how to get those working after updating composer

Please help me run it

I've installed the package updated the composer. but cant seem to run it on my controller.
Can u please give me exact line of code to how check a statement.
because when I run SentimentAnalysis::decision($sentence); , it gives me error(Non-static method Antoineaugusti\LaravelSentimentAnalysis\SentimentAnalysis::decision() should not be called statically).
Please reply ASAP. I really need it. Thanks

Adding new dataset

how to add new word in dataset ?

I revived this problem while trying to install the package using composer require

Problem 1
- Root composer.json requires antoineaugusti/laravel-sentiment-analysis ^4.0 -> satisfiable by antoineaugusti/laravel-sentiment-analysis[v4.0].
- antoineaugusti/laravel-sentiment-analysis v4.0 requires illuminate/support ^6 || ^7 -> found illuminate/support[v6.0.0, ..., 6.x-dev, v7.0.0, ..., 7.x-dev] but these were not loaded, likely because it conflicts with another require.

How use this tools

iam a newbie. Could you please show an example how to use? Thanks so much.

Custom Dictionaries

Hey,

Is it possible to set custom dictionaries?

I'm happy enough to create a pull request if there isn't.