# accuracy-meter


Measure accuracy, precision and recall of a machine learning classifier.

## Usage

```

var meter = new AccuracyMeter();

dataset.forEach(function(){

	meter.add(['positive'],['negative']); // meter.add(predicted, golden);

});

meter.get();

```

## API

### add(predicted, golden)

It adds a pair <predicted, golden>, representing the set of prdicted labels and the set of golden labels. Golden and predicted labels are both arrays.

### get()

It returns an object containing:
* precision
* recall
* fscore

# Why

* node.js is not a standard language for NLP tasks, but...
* machine learning is more and more in the cloud (check Watson NLP Classifier)
* machine learning is becoming just a set of Http end points to invoke
* node.js is perfect as middleware and client among Http end points
* ...accuracy-meter might help you to measure the accuracy of your algorithms in the cloud



accuracy-meter

bitliner

(Experimental) An ambiguous license classifier was found.

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Ambiguous License Classifier

Source files are encoded using a non-standard text encoding.

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Bad text encoding

Package version is not a valid semantic version (semver).

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Bad semver

Package has dependencies with an invalid semantic version. This could be a sign of beta, low quality, or unmaintained dependencies.

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Bad dependency semver

Source files contain bidirectional unicode control characters. This could indicate a Trojan source supply chain attack. See: trojansource.codes for more information.

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Bidirectional unicode control characters

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What is bin script confusion?

Bin script confusion

This Chrome extension includes content scripts that execute JavaScript on specified websites.

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Chrome Extension Content Script

This Chrome extension requests host permissions to access specific websites or domains.

What are Chrome extension host permissions?

Chrome Extension Host Permission

This Chrome extension requests permissions to access browser APIs, user data, or system features.

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Chrome Extension Permission

This Chrome extension requests wildcard host permissions that grant broad access to websites.

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Chrome Extension Wildcard Host Permission

Semantic versions published out of chronological order.

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Chronological version anomaly

Project maintainer's SSH key has been compromised.

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Compromised SSH key

(Experimental) Copyleft license information was found.

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Copyleft License

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Title

Critical CVE

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High CVE

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Debug access

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Possible typosquat attack

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Dynamic require

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Empty package

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File dependency

Accesses the file system, and could potentially read sensitive data.

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Filesystem access

Package has a dependency with a floating version range. This can cause issues if the dependency publishes a new major version.

What are wildcard dependencies?

Wildcard dependency

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Git dependency

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GitHub dependency

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AI-detected potential malware

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AI-detected potential security risk

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Native code

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High entropy strings

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Unicode homoglyphs

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HTTP dependency

Install scripts are run when the package is installed. The majority of malware in npm is hidden in install scripts.

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Install scripts

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Invalid manifest file

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What are invisible characters?

Invisible chars

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License change

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License exception

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License Policy Violation

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Long strings

Package has recently undergone a major refactor. It may be unstable or indicate significant internal changes. Use caution when updating to versions that include significant changes.

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Major refactor

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Known malware

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Manifest confusion

Contains a medium severity Common Vulnerability and Exposure (CVE).

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Medium CVE

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Low CVE

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Minified code

(Experimental) A package's licensing information has fine-grained problems.

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Missing license

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Missing package tarball

(Experimental) Package contains multiple licenses.

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Mixed license

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Modified license exception

(Experimental) Package contains a modified version of an SPDX license. Please read carefully before using this code.

What is a modified license?

Modified license

What is network access?

Network access

A new npm collaborator published a version of the package for the first time. New collaborators are usually benign additions to a project, but do indicate a change to the security surface area of a package.

What is new author?

New author

Package does not specify a list of contributors or an author in package.json.

Why is contributor and author data important?

No contributors or author data

Package does not have a linked bug tracker in package.json.

Why are bug trackers important?

No bug tracker

(Experimental) License information could not be found.

No License Found

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No README

Package does not have a linked source code repository. Without this field, a package will have no reference to the location of the source code use to generate the package.

accuracy-meter

accuracy-meter

Usage

API

add(predicted, golden)

get()

Why

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