Amazon user item temporal bipartite rating network

This bipartite network contains product ratings from the Amazon online shopping website. The rating scale ranges from 1 to 5, where 5 denotes the most positive rating. Nodes represent users and products, and edges represent individual ratings.

More information about the network is provided here:
http://konect.uni-koblenz.de/networks/amazon-ratings

Files:
meta.amazon-ratings -- Metadata about the network
out.amazon-ratings -- The adjacency matrix of the network in space separated values format, with one edge per line
The meaning of the columns in out.amazon-ratings are:
First column: ID of from node
Second column: ID of to node
Third column: edge weight
Fourth column: timestamp of the edge

Complete documentation about the file format can be found in the KONECT
handbook, in the section File Formats, available at:

http://konect.uni-koblenz.de/publications

All files are licensed under a Creative Commons Attribution-ShareAlike 2.0 Germany License.
For more information concerning license visit http://konect.uni-koblenz.de/license.

Use the following References for citation:

@MISC{konect:2016:amazon-ratings,
title = {Amazon ratings network dataset -- {KONECT}},
month = oct,
year = {2016},
url = {http://konect.uni-koblenz.de/networks/amazon-ratings}
}

@inproceedings{konect:lim2010,
author = {Lim, Ee-Peng and Nguyen, Viet-An and Jindal, Nitin and Liu, Bing and Lauw, Hady Wirawan},
title = {Detecting Product Review Spammers Using Rating Behaviors},
booktitle = {Proc. Int. Conf. on Information and Knowledge Management},
year = {2010},
pages = {939--948},
}

@inproceedings{konect:jindal2008,
author = {Jindal, Nitin and Liu, Bing},
title = {Opinion Spam and Analysis},
booktitle = {Proc. Int. Conf. on Web Search and Web Data Mining},
year = {2008},
pages = {219--230},
}

@inproceedings{konect:mukherjee2012,
author = {Mukherjee, Arjun and Liu, Bing and Glance, Natalie},
title = {Spotting Fake Reviewer Groups in Consumer Reviews},
booktitle = {Proc. Int. Conf. on World Wide Web},
year = {2012},
pages = {191--200},
}

@inproceedings{konect,
title = {{KONECT} -- {The} {Koblenz} {Network} {Collection}},
author = {Jérôme Kunegis},
year = {2013},
booktitle = {Proc. Int. Conf. on World Wide Web Companion},
pages = {1343--1350},
url = {http://userpages.uni-koblenz.de/~kunegis/paper/kunegis-koblenz-network-collection.pdf},
url_presentation = {http://userpages.uni-koblenz.de/~kunegis/paper/kunegis-koblenz-network-collection.presentation.pdf},
}