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What is fastText?

fastText is an open-source library developed by Facebook's AI Research (FAIR) team, aimed at efficiently generating word embeddings and facilitating text classification tasks. Its functionality encompasses both unsupervised training of word vectors and supervised approaches for text classification, allowing for a wide range of applications. A notable feature of fastText is its incorporation of subword information, representing words as groups of character n-grams; this approach is particularly advantageous for handling languages with complex morphology and words absent from the training set. The library is optimized for high performance, enabling swift training on large datasets, and it allows for model compression suitable for mobile devices. Users can also download pre-trained word vectors for 157 languages, sourced from Common Crawl and Wikipedia, enhancing accessibility. Furthermore, fastText offers aligned word vectors for 44 languages, making it particularly useful for cross-lingual natural language processing, thereby extending its applicability in diverse global scenarios. As a result, fastText serves as an invaluable resource for researchers and developers in the realm of natural language processing, pushing the boundaries of what can be achieved in this dynamic field. Its versatility and efficiency contribute to its growing popularity among practitioners.

What is LexVec?

LexVec is an advanced word embedding method that stands out in a variety of natural language processing tasks by factorizing the Positive Pointwise Mutual Information (PPMI) matrix using stochastic gradient descent. This approach places a stronger emphasis on penalizing errors that involve frequent co-occurrences while also taking into account negative co-occurrences. Pre-trained vectors are readily available, which include an extensive common crawl dataset comprising 58 billion tokens and 2 million words represented across 300 dimensions, along with a dataset from English Wikipedia 2015 and NewsCrawl that features 7 billion tokens and 368,999 words in the same dimensionality. Evaluations have shown that LexVec performs on par with or even exceeds the capabilities of other models like word2vec, especially in tasks related to word similarity and analogy testing. The implementation of this project is open-source and is distributed under the MIT License, making it accessible on GitHub and promoting greater collaboration and usage within the research community. The substantial availability of these resources plays a crucial role in propelling advancements in the field of natural language processing, thereby encouraging innovation and exploration among researchers. Moreover, the community-driven approach fosters dialogue and collaboration that can lead to even more breakthroughs in language technology.

Media

Media

Integrations Supported

Gensim
JavaScript
Python
WebAssembly

Integrations Supported

Gensim
JavaScript
Python
WebAssembly

API Availability

Has API

API Availability

Has API

Pricing Information

Free
Free Trial Offered?
Free Version

Pricing Information

Free
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

fastText

Company Website

fasttext.cc/

Company Facts

Organization Name

Alexandre Salle

Company Location

Brazil

Company Website

github.com/alexandres/lexvec

Categories and Features

Categories and Features

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