WordNet: a lexical database for English
Communications of the ACM
Combining fuzzy information from multiple systems (extended abstract)
PODS '96 Proceedings of the fifteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
A framework for expressing and combining preferences
SIGMOD '00 Proceedings of the 2000 ACM SIGMOD international conference on Management of data
Optimal aggregation algorithms for middleware
PODS '01 Proceedings of the twentieth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
PREFER: a system for the efficient execution of multi-parametric ranked queries
SIGMOD '01 Proceedings of the 2001 ACM SIGMOD international conference on Management of data
Understanding and Using Context
Personal and Ubiquitous Computing
Optimizing Multi-Feature Queries for Image Databases
VLDB '00 Proceedings of the 26th International Conference on Very Large Data Bases
Multidimensional Semistructured Data: Representing Context-Dependent Information on the Web
CAiSE '02 Proceedings of the 14th International Conference on Advanced Information Systems Engineering
Query Processing Issues in Image(Multimedia) Databases
ICDE '99 Proceedings of the 15th International Conference on Data Engineering
An Approach for Measuring Semantic Similarity between Words Using Multiple Information Sources
IEEE Transactions on Knowledge and Data Engineering
Preference formulas in relational queries
ACM Transactions on Database Systems (TODS)
Personalized Queries under a Generalized Preference Model
ICDE '05 Proceedings of the 21st International Conference on Data Engineering
Constrained optimalities in query personalization
Proceedings of the 2005 ACM SIGMOD international conference on Management of data
AGILE: adaptive indexing for context-aware information filters
Proceedings of the 2005 ACM SIGMOD international conference on Management of data
Proceedings of the 2006 ACM SIGMOD international conference on Management of data
Foundations of preferences in database systems
VLDB '02 Proceedings of the 28th international conference on Very Large Data Bases
Eliciting matters: controlling skyline sizes by incremental integration of user preferences
DASFAA'07 Proceedings of the 12th international conference on Database systems for advanced applications
A context-aware preference model for database querying in an ambient intelligent environment
DEXA'06 Proceedings of the 17th international conference on Database and Expert Systems Applications
Modeling and storing context-aware preferences
ADBIS'06 Proceedings of the 10th East European conference on Advances in Databases and Information Systems
Search structures and algorithms for personalized ranking
Information Sciences: an International Journal
Contextual Ranking of Database Querying Results: A Statistical Approach
EuroSSC '08 Proceedings of the 3rd European Conference on Smart Sensing and Context
A personalized access model: concepts and services for content delivery platforms
Proceedings of the 10th International Conference on Information Integration and Web-based Applications & Services
CPref-SQL: a query language supporting conditional preferences
Proceedings of the 2009 ACM symposium on Applied Computing
Toward context and preference-aware location-based services
Proceedings of the Eighth ACM International Workshop on Data Engineering for Wireless and Mobile Access
Personalizing queries based on networks of composite preferences
ACM Transactions on Database Systems (TODS)
PerK: personalized keyword search in relational databases through preferences
Proceedings of the 13th International Conference on Extending Database Technology
Introducing contexts into personalized web applications
Proceedings of the 12th International Conference on Information Integration and Web-based Applications & Services
A survey on representation, composition and application of preferences in database systems
ACM Transactions on Database Systems (TODS)
Relaxing queries based on XML structure and content preferences
WISS'10 Proceedings of the 2010 international conference on Web information systems engineering
Modeling the propagation of user preferences
ER'11 Proceedings of the 30th international conference on Conceptual modeling
Flexible and extensible preference evaluation in database systems
ACM Transactions on Database Systems (TODS)
Improving contextual advertising by adopting collaborative filtering
ACM Transactions on the Web (TWEB)
Hi-index | 0.00 |
To provide users with only relevant data from the huge amount of available information, personalization systems utilize preferences to allow users to express their interest on specific pieces of data. Most often, user preferences vary depending on the circumstances. For instance, when with friends, users may like to watch thrillers, whereas, when with their kids, they may prefer to watch cartoons. Contextual preference systems address this challenge by supporting preferences that depend on the values of contextual attributes such as the surrounding environment, time or location. In this paper, we address the problem of finding interesting data items based on contextual preferences that assign interest scores to pieces of data based on context. To this end, we propose a number of pre-processing steps. Instead of pre-computing scores for all data items under all potential context states, we exploit the hierarchical nature of context attributes to identify representative context states. Furthermore, we introduce a method for grouping preferences based on the similarity of the scores that they produce. This method uses a bitmap representation of preferences and scores with various levels of precision that lead to approximate rankings with different degrees of accuracy. We evaluate our approach using both real and synthetic data sets and present experimental results showing the quality of the scores attained using our methods.