Encyclopedia of Social Network Analysis and Mining

2014 Edition
| Editors: Reda Alhajj, Jon Rokne

Recommender Systems, Semantic-Based

  • Fatih Gedikli
  • Dietmar Jannach
Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-6170-8_116

Synonyms

Glossary

Collaborative Filtering

A recommendation method which is based on rating information of the user community

Content-Based Filtering

A recommendation method which is based on characteristics of the recommended items as well as individual user feedback

Hybrid Recommender System

A recommender system that combines different recommendation approaches or data sources

Rating Matrix

A grid containing the users’ implicit or explicit item ratings

Cold-Start Problem

The ramp-up phase of a recommender where preference data is missing

Definition

Recommender systems (RS) are software tools that are predominantly used on e-commerce sites and for other online services as a means to help the online customer find the most relevant shopping items or pieces of information quickly. Today, such systems can be found for a variety of different domains such as books, movies, music, hotels, restaurants, or news.

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References

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Recommended Reading

  1. Jannach D, Zanker M, Felfernig A, Friedrich G (2010) Recommender systems – an introduction. Cambridge University Press, LeidenGoogle Scholar
  2. Ricci F, Rokach L, Shapira B, Kantor PB (eds) (2011) Recommender systems handbook. Springer, New YorkzbMATHGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Fatih Gedikli
    • 1
  • Dietmar Jannach
    • 1
  1. 1.Department of Computer Science, TU DortmundDortmundGermany