Sebastian Raschka
Last updated: 01/16/2015

A collection of links to various free and open-source datasets.

I am looking forward to extend this little collection! If you don't find your favorite datasets listed here, just let me know (via email or twitter) and I will add them in no-time!

• Dataset Repositories
• Datasets by Format
  • Image
  • Audio
  • Text
  • Time Series
• Datasets by Topic
  • Natural Sciences
  • Web, Technology, and Social Networks
  • Historical Data and Human Resources
  • Finance and Companies
  • Government Data and Politics

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• Kaggle - Kaggle, the leading platform for predictive modeling competitions.

• UCI MLR - UC Irvine Machine Learning Repository.

• google.com/publicdata - Public data maintained by Google.

• Freebase - A community-curated database of well-known people, places, and things.

• mldata.org - Machine learning data set repository for uploading and finding data sets.

• Infochimps - A huge collection of large-sized data sets.

• Amazon Web Services - Public Data Sets on AWS provides a centralized repository of public data sets that can be seamlessly integrated into AWS cloud-based applications.

• Databib - A searchable catalog / registry / directory / bibliography of research data repositories.

• figshare - An online digital repository where researchers can preserve and share their research outputs, including figures, datasets, images, and videos.

• reddit r/datasets - Datasets shared on reddit.

• datahub - The free, powerful data management platform from the Open Knowledge Foundation

• Quandl - A search engine for numerical data

• enigma - A search engine for public records published by governments, companies and organizations.

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• Tiny Images Dataset - A dataset of 79,302,017 images, each being a 32x32 color image.

• ImageNet -A searchable image database.

• CAT Dataset - A dataset of 10,000 cat images.

• Amsterdam Library of Object Images (ALOI) - A color image collection of one-thousand small objects, recorded for scientific purposes.

• Face Recognition Databases - A large collection of datasets for face recognition.

• INRIA Holidays and Copydays datasets - Datasets of personal holidays photos.

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• Mobio - bi-modal (audio and video) data taken from 152 people.

• Million Song Dataset - The Million Song Dataset is a freely-available collection of audio features and metadata for a million contemporary popular music tracks.

• Music Data Mining - A collection of research done on music analysis and links to various datasets.

• CMU Audio Databases - A collection of databases for speech recognition.

• CMU Audio Databases - A collection of databases for speech recognition.

• CMU_ARCTIC speech synthesis databases - Phonetically balanced, US English single speaker databases designed for unit selection speech synthesis research.

• VoxForge - GPL speech audio corpora.

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• TechTC - Technion Repository of Text Categorization Datasets containing 300 labeled datasets with categorization difficulties indicated by baseline SVM accuracies.

• SMS Spam Collection - A public dataset of 5572 SMS messages that are labeled as either "spam" or "ham" (not spam).

• musiXmatch - A dataset of lyrics for the songs in the one million songs dataset. The lyrics are pre-processed and available as "bag of words" after stemming.

• Google books Ngram Viewer - The corpus of Google books as n-grams available for quick online queries or download.

• Jeb Bush's email archive - Jeb Bush's emails during his days as the governor of Florida.

• Amazon Google Books Ngrams - A data set containing Google Books n-gram corpuses.

• The Wayback Machine - 80 terabytes of archived web crawl data available for research.

• SMS Spam Collection - A collection of 425 SMS spam messages was manually extracted from the Grumbletext Web site.

• Yahoo News Feed dataset - An 1.5 TB dataset for building machine learning recommendation systems

• The full Reddit Submission Corpus 2006-2015 - This represents all publicly available Reddit submissions from January 2006 - August 31, 2015).

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• NGAFID - National General Aviation Flight Information Database. Time series data from various flight data recorders for flights that are approximately an hour long each.

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• 1000 Genomes Project - A Deep Catalog of Human Genetic Variation.

• Cancer Program Data Sets - a collection of genomic datasets.

• Meteorites - Registered meteorites that have impacted on Earth.

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• The Wayback Machine - 80 terabytes of archived web crawl data available for research.

• Social Network Analysis Interactive Dataset Library - a site that contains an accessible library of many of the 'open' social network analysis datasets.

• SMS Spam Collection - A collection of 425 SMS spam messages was manually extracted from the Grumbletext Web site.

• SNAP - Stanford Large Network Dataset Collection.

• Amazon Google Books Ngrams - A data set containing Google Books n-gram corpuses.

• Click Dataset - A large dataset of about 53.5 billion HTTP requests made by users at Indiana University.

• Common Crawl 2012 web corpus - A hyperlink graph of 3.5 billion web pages and 128 billion hyperlinks between these pages.

• PyPi/Maven Dependency Data - State of the Maven/Java dependency graph and state of the PyPi/Python dependency graph.

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• Titanic Survivors - dataset with 1313 samples and 10 features about Titanic survivors.

• Pass rates, race & gender - Detailed data on pass rates, race, and gender for 2013.

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• Modeling Online Auctions - Datasets of bidding for different ebay auctions.

• NYPD Crash Data Band-Aid - NYPD traffic crash data as a geocoded CSV.

• aiHit Datasets - Information on random 10,000 UK companies sampled from aiHit DB.

• Crunchbase Companies Datasets - 2 Million crunchbase company listings with over 100 data points.

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• United Nations Data about health, environment, energy, etc.

• United Stated Government Data The home of the U.S. Government’s open data.

• Survey Data from U.S.

• EconData - economic time series, produced by a number of U.S. Government agencies and distributed in a variety of formats and media.

• USGovXML - USGovXML is an index to publicly available web services and XML data sources that are provided by the US government.

• Nominate/vote data - Datasets including all the D-NOMINATE and W-NOMINATE scores.

• Jeb Bush's email archive - Jeb Bush's emails during his days as the governor of Florida.