@inbook{413f73dc091c4b47861be19e38234c69,
title = "Experiments in sparsity reduction: Using clustering in collaborative recommenders",
abstract = "The high cardinality and sparsity of a collaborative recommender's dataset is a challenge to its efficiency. We generalise an existing clustering technique and apply it to a collaborative recommender's dataset to reduce cardinality and sparsity. We systematically test several variations, exploring the value of partitioning and grouping the data.",
author = "Derek Bridge and Jerome Kelleher",
note = "Publisher Copyright: {\textcopyright} Springer-Verlag Berlin Heidelberg 2002.; 13th Irish Conference on Artificial Intelligence and Cognitive Science, AICS 2002 ; Conference date: 12-09-2002 Through 13-09-2002",
year = "2002",
doi = "10.1007/3-540-45750-x\_18",
language = "English",
series = "Lecture Notes in Artificial Intelligence (Subseries of Lecture Notes in Computer Science)",
publisher = "Springer Verlag",
pages = "144--149",
editor = "Michael O{\textquoteright}Neill and Sutcliffe, \{Richard F. E.\} and Conor Ryan and Malachy Eaton and Griffith, \{Niall J. L.\}",
booktitle = "Artificial Intelligence and Cognitive Science - 13th Irish Conference, AICS 2002, Proceedings",
address = "Germany",
}