Installation

npm install @stdlib/datasets-liu-positive-opinion-words-en

Alternatively,

• To load the package in a website via a script tag without installation and bundlers, use the ES Module available on the esm branch (see README).
• If you are using Deno, visit the deno branch (see README for usage intructions).
• For use in Observable, or in browser/node environments, use the Universal Module Definition (UMD) build available on the umd branch (see README).
• To use as a general utility for the command line, install the corresponding CLI package globally.

The branches.md file summarizes the available branches and displays a diagram illustrating their relationships.

To view installation and usage instructions specific to each branch build, be sure to explicitly navigate to the respective README files on each branch, as linked to above.

Usage

var words = require( '@stdlib/datasets-liu-positive-opinion-words-en' );

words()

Returns a list of positive opinion words.

var list = words();
/* returns
    [
        'a+',
        'abound',
        'abounds',
        'abundance',
        'abundant',
        'accessable',
        'accessible',
        'acclaim',
        'acclaimed',
        'acclamation',
        'accolade',
        'accolades',
        ...
    ]
*/

Notes

• A word's appearance in a sentence does not necessarily imply a positive or negative opinion. See Liu (2010).
• The list includes misspelled words. Their presence is intentional, as such misspellings frequently occur in social media content.

Examples

var floor = require( '@stdlib/math-base-special-floor' );
var randu = require( '@stdlib/random-base-randu' );
var words = require( '@stdlib/datasets-liu-positive-opinion-words-en' );

var list = words();
var len = list.length;
var idx;
var i;

// Select random words from the list...
for ( i = 0; i < 100; i++ ) {
    idx = floor( randu()*len );
    console.log( list[ idx ] );
}

CLI

npm install -g @stdlib/datasets-liu-positive-opinion-words-en-cli

Usage: liu-positive-opinion-words-en [options]

Options:

  -h,    --help                Print this message.
  -V,    --version             Print the package version.

$ liu-positive-opinion-words-en
a+
abound
abounds
abundance
...

References

• Hu, Minqing, and Bing Liu. 2004. "Mining and Summarizing Customer Reviews." In Proceedings of the Tenth Acm Sigkdd International Conference on Knowledge Discovery and Data Mining, 168–77. KDD '04. New York, NY, USA: ACM. doi:10.1145/1014052.1014073.
• Liu, Bing, Minqing Hu, and Junsheng Cheng. 2005. "Opinion Observer: Analyzing and Comparing Opinions on the Web." In Proceedings of the 14th International Conference on World Wide Web, 342–51. WWW '05. New York, NY, USA: ACM. doi:10.1145/1060745.1060797.
• Liu, Bing. 2010. "Sentiment Analysis and Subjectivity." In Handbook of Natural Language Processing, edited by Nitin Indurkhya and Fred J. Damerau, 2nd ed., 627–66. Chapman & Hall/CRC. https://www.crcpress.com/Handbook-of-Natural-Language-Processing-Second-Edition/Indurkhya-Damerau/p/book/9781420085921.

See Also

• @stdlib/datasets-liu-negative-opinion-words-en: A list of negative opinion words.

Notice

This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.

Community

Copyright

Copyright © 2016-2024. The Stdlib Authors.