Datasets (Cloned)

# General data
- [Open Governments](http://www.data.gov/opendatasites)
- [Gap Minder](http://www.gapminder.org/)
- [Survey data](http://www.asdfree.com/)
- [Infochimps marketplace](http://www.infochimps.com/marketplace)
- [Kaggle](http://www.kaggle.com/)
- [Collections by data scientists](http://blog.mortardata.com/post/67652898761/6-dataset-lists-curated-by-data-scientists)

# More specialized collections
- [Stanford Large Network Data](http://snap.stanford.edu/data/)
- [UCI Machine Learning](http://archive.ics.uci.edu/ml/)
- [KDD Nugets Datasets](http://www.kdnuggets.com/datasets/index.html)
- [CMU Statlib](http://lib.stat.cmu.edu/datasets/)
- [Gene expression omnibus](http://www.ncbi.nlm.nih.gov/geo/)
- [ArXiv Data](http://arxiv.org/help/bulk_data)
- [Public Data Sets on Amazon Web Services](http://aws.amazon.com/publicdatasets/)

# Others
- [Top Datasets on Reddit](http://www.kdnuggets.com/2013/12/top-datasets-on-reddit.html)
- [9 Must-Have Datasets for Investigating Recommender Systems](http://www.kdnuggets.com/2016/02/nine-datasets-investigating-recommender-systems.html)
-[Fueling the Gold Rush: The Greatest Public Datasets for AI
](https://medium.com/startup-grind/fueling-the-ai-gold-rush-7ae438505bc2#.mv5q4gy1s)
- [25+ websites to find datasets for data science projects
](https://www.analyticsvidhya.com/blog/2016/11/25-websites-to-find-datasets-for-data-science-projects/)
- [Cool Datasets](http://cooldatasets.com/)
- [Free Datasets](https://webhose.io/datasets)
- [List of open data sets 1](http://www.datapure.co/open-data-sets)
- [List of open data sets 2](http://www.kdnuggets.com/2011/02/free-public-datasets.html)

Recommender Systems
**Movies Recommendation:**

MovieLens - Movie Recommendation Data Sets http://www.grouplens.org/node/73

Yahoo! - Movie, Music, and Images Ratings Data Sets http://webscope.sandbox.yahoo.com/catalog.php?datatype=r

Jester - Movie Ratings Data Sets (Collaborative Filtering Dataset) http://www.ieor.berkeley.edu/~goldberg/jester-data/

Cornell University - Movie-review data for use in sentiment-analysis experiments http://www.cs.cornell.edu/people/pabo/movie-review-data/

**Music Recommendation:**

Last.fm - Music Recommendation Data Sets http://www.dtic.upf.edu/~ocelma/MusicRecommendationDataset/index.html

Yahoo! - Movie, Music, and Images Ratings Data Sets http://webscope.sandbox.yahoo.com/catalog.php?datatype=r

Audioscrobbler - Music Recommendation Data Sets http://www-etud.iro.umontreal.ca/~bergstrj/audioscrobbler_data.html

Amazon - Audio CD recommendations http://131.193.40.52/data/

**Books Recommendation:**

Institut für Informatik, Universität Freiburg - Book Ratings Data Sets http://www.informatik.uni-freiburg.de/~cziegler/BX/
Food Recommendation:

Chicago Entree - Food Ratings Data Sets http://archive.ics.uci.edu/ml/datasets/Entree+Chicago+Recommendation+Data
Merchandise Recommendation:

**Healthcare Recommendation:**

Nursing Home - Provider Ratings Data Set http://data.medicare.gov/dataset/Nursing-Home-Compare-Provider-Ratings/mufm-vy8d

Hospital Ratings - Survey of Patients Hospital Experiences http://data.medicare.gov/dataset/Survey-of-Patients-Hospital-Experiences-HCAHPS-/rj76-22dk

**Dating Recommendation:**

www.libimseti.cz - Dating website recommendation (collaborative filtering) http://www.occamslab.com/petricek/data/
Scholarly Paper Recommendation:

National University of Singapore - Scholarly Paper Recommendation http://www.comp.nus.edu.sg/~sugiyama/SchPaperRecData.html