recommenderlab (version 1.0.6)

MSWeb: Anonymous web data from www.microsoft.com

Description

Vroots visited by users in a one week timeframe.

Usage

data(MSWeb)

Format

The format is: Formal class "binaryRatingMatrix".

Details

The data was created by sampling and processing the www.microsoft.com logs. The data records the use of www.microsoft.com by 38000 anonymous, randomly-selected users. For each user, the data lists all the areas of the web site (Vroots) that user visited in a one week timeframe in February 1998.

This dataset contains 32710 valid users and 285 Vroots.

References

J. Breese, D. Heckerman., C. Kadie (1998). Empirical Analysis of Predictive Algorithms for Collaborative Filtering, Proceedings of the Fourteenth Conference on Uncertainty in Artificial Intelligence, Madison, WI.

Examples

data(MSWeb)
MSWeb

nratings(MSWeb)

## look at first two users
as(MSWeb[1:2,], "list")

## items per user
hist(rowCounts(MSWeb), main="Distribution of Vroots visited per user")