VAGUE: a user interface to relational databases that permits vague queries
ACM Transactions on Information Systems (TOIS)
Fixpoint iteration with subsumption in deductive databases
Journal of Intelligent Information Systems - Special issue: deductive and object-oriented databases
CoBase: a scalable and extensible cooperative information system
Journal of Intelligent Information Systems - Special issue on intelligent integration of information
A framework for expressing and combining preferences
SIGMOD '00 Proceedings of the 2000 ACM SIGMOD international conference on Management of data
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
COSIMA- your smart, speaking E-salesperson
SIGMOD '01 Proceedings of the 2001 ACM SIGMOD international conference on Management of data
The COSIMA prototype for multi-objective bargaining
Proceedings of the first international joint conference on Autonomous agents and multiagent systems: part 3
Querying with Intrinsic Preferences
EDBT '02 Proceedings of the 8th International Conference on Extending Database Technology: Advances in Database Technology
An Overview of Cooperative Answering in Databases
FQAS '98 Proceedings of the Third International Conference on Flexible Query Answering Systems
Proceedings of the 17th International Conference on Data Engineering
Proceedings of the Third Workshop on Information Systems and Artificial Intelligence: Management and Processing of Complex Data Structures
Efficient Progressive Skyline Computation
Proceedings of the 27th International Conference on Very Large Data Bases
Design and Implementation of COSIMA -A Smart and Speaking E-Sales Assistant
WECWIS '01 Proceedings of the Third International Workshop on Advanced Issues of E-Commerce and Web-Based Information Systems (WECWIS '01)
Foundations of preferences in database systems
VLDB '02 Proceedings of the 28th international conference on Very Large Data Bases
Searching in metric spaces with user-defined and approximate distances
ACM Transactions on Database Systems (TODS)
Preference formulas in relational queries
ACM Transactions on Database Systems (TODS)
Personalization of Queries in Database Systems
ICDE '04 Proceedings of the 20th International Conference on Data Engineering
Preserving privacy when preference searching in e-commerce
Proceedings of the 2003 ACM workshop on Privacy in the electronic society
A framework for analysis of data freshness
Proceedings of the 2004 international workshop on Information quality in information systems
Through different eyes: assessing multiple conceptual views for querying web services
Proceedings of the 13th international World Wide Web conference on Alternate track papers & posters
Personalized Queries under a Generalized Preference Model
ICDE '05 Proceedings of the 21st International Conference on Data Engineering
Stratified computation of skylines with partially-ordered domains
Proceedings of the 2005 ACM SIGMOD international conference on Management of data
Optimization of relational preference queries
ADC '05 Proceedings of the 16th Australasian database conference - Volume 39
Efficient detection of empty-result queries
VLDB '06 Proceedings of the 32nd international conference on Very large data bases
SaLSa: computing the skyline without scanning the whole sky
CIKM '06 Proceedings of the 15th ACM international conference on Information and knowledge management
Enabling soft queries for data retrieval
Information Systems
Semantic optimization techniques for preference queries
Information Systems
XMatch: A language for satisfaction-based selection of Grid services
Scientific Programming - Dynamic Grids and Worldwide Computing
Database querying under changing preferences
Annals of Mathematics and Artificial Intelligence
Foundations of preferences in database systems
VLDB '02 Proceedings of the 28th international conference on Very Large Data Bases
Distributed top-N query processing with possibly uncooperative local systems
VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
Efficient approximation of optimization queries under parametric aggregation constraints
VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
OLAP preferences: a research agenda
Proceedings of the ACM tenth international workshop on Data warehousing and OLAP
Utility-driven load shedding for xml stream processing
Proceedings of the 17th international conference on World Wide Web
Answering preference queries with bit-sliced index arithmetic
Proceedings of the 2008 C3S2E conference
Mining preferences from superior and inferior examples
Proceedings of the 14th ACM SIGKDD international conference on Knowledge discovery and data mining
Ontology-Based Data Sharing in P2P Databases
Semantic Web, Ontologies and Databases
A user-friendly interface for evaluating preference queries over tabular data
Proceedings of the 26th annual ACM international conference on Design of communication
GrouPeer: Dynamic clustering of P2P databases
Information Systems
CPref-SQL: a query language supporting conditional preferences
Proceedings of the 2009 ACM symposium on Applied Computing
Stratified division queries involving ordinal user preferences
Proceedings of the 2009 ACM symposium on Applied Computing
Tolerant division queries and possibilistic database querying
Fuzzy Sets and Systems
Anti-division Queries with Ordinal Layered Preferences
ECSQARU '09 Proceedings of the 10th European Conference on Symbolic and Quantitative Approaches to Reasoning with Uncertainty
Toward context and preference-aware location-based services
Proceedings of the Eighth ACM International Workshop on Data Engineering for Wireless and Mobile Access
Top-k Queries with Contextual Fuzzy Preferences
DEXA '09 Proceedings of the 20th International Conference on Database and Expert Systems Applications
On Three Classes of Division Queries Involving Ordinal Preferences
ISMIS '09 Proceedings of the 18th International Symposium on Foundations of Intelligent Systems
Semantic-Based Top-k Retrieval for Competence Management
ISMIS '09 Proceedings of the 18th International Symposium on Foundations of Intelligent Systems
Relaxing RDF queries based on user and domain preferences
Journal of Intelligent Information Systems
Location-aware privacy and more: a systems approach using context-aware database management systems
Proceedings of the 2nd SIGSPATIAL ACM GIS 2009 International Workshop on Security and Privacy in GIS and LBS
Discovering relative importance of skyline attributes
Proceedings of the VLDB Endowment
A Flexible Querying Approach Based on Outranking and Classification
FQAS '09 Proceedings of the 8th International Conference on Flexible Query Answering Systems
A Model for Contextual Cooperative Query Answering in E-Commerce Applications
FQAS '09 Proceedings of the 8th International Conference on Flexible Query Answering Systems
About Bipolar Division Operators
FQAS '09 Proceedings of the 8th International Conference on Flexible Query Answering Systems
Fuzzy sets in database and information systems: Status and opportunities
Fuzzy Sets and Systems
On fuzzy queries with contextual predicates
FUZZ-IEEE'09 Proceedings of the 18th international conference on Fuzzy Systems
Personalizing queries based on networks of composite preferences
ACM Transactions on Database Systems (TODS)
A fast and progressive algorithm for skyline queries with totally- and partially-ordered domains
Journal of Systems and Software
Improving the accuracy of job search with semantic techniques
BIS'07 Proceedings of the 10th international conference on Business information systems
Reusing classical query rewriting in P2P databases
DBISP2P'05/06 Proceedings of the 2005/2006 international conference on Databases, information systems, and peer-to-peer computing
Communicating through preferences
Proceedings of the 3rd International Conference on PErvasive Technologies Related to Assistive Environments
Preference query evaluation over expensive attributes
CIKM '10 Proceedings of the 19th ACM international conference on Information and knowledge management
Assessing web services quality for call-by-call outsourcing
WISEW'03 Proceedings of the Fourth international conference on Web information systems engineering workshops
Strict and tolerant antidivision queries with ordinal layered preferences
International Journal of Approximate Reasoning
A flexible bipolar querying approach with imprecise data and guaranteed results
Fuzzy Sets and Systems
Preference elicitation in prioritized skyline queries
The VLDB Journal — The International Journal on Very Large Data Bases
Preferences in AI: An overview
Artificial Intelligence
A survey on representation, composition and application of preferences in database systems
ACM Transactions on Database Systems (TODS)
A preference query model based on a fusion of local orders
ECSQARU'11 Proceedings of the 11th European conference on Symbolic and quantitative approaches to reasoning with uncertainty
On different types of fuzzy skylines
ISMIS'11 Proceedings of the 19th international conference on Foundations of intelligent systems
On database queries involving inferred fuzzy predicates
ISMIS'11 Proceedings of the 19th international conference on Foundations of intelligent systems
ESORICS'11 Proceedings of the 16th European conference on Research in computer security
Personalizing queries over large data tables
ADBIS'11 Proceedings of the 15th international conference on Advances in databases and information systems
On three classes of division queries involving ordinal preferences
Journal of Intelligent Information Systems
Towards a language for a satisfaction-based selection of grid services
PPAM'05 Proceedings of the 6th international conference on Parallel Processing and Applied Mathematics
Top-k skyline: a unified approach
OTM'05 Proceedings of the 2005 OTM Confederated international conference on On the Move to Meaningful Internet Systems
Iterative modification and incremental evaluation of preference queries
FoIKS'06 Proceedings of the 4th international conference on Foundations of Information and Knowledge Systems
Preference functional dependencies for managing choices
ER'06 Proceedings of the 25th international conference on Conceptual Modeling
Robust query processing for personalized information access on the semantic web
FQAS'06 Proceedings of the 7th international conference on Flexible Query Answering Systems
The lookahead principle for preference elicitation: experimental results
FQAS'06 Proceedings of the 7th international conference on Flexible Query Answering Systems
FQAS'11 Proceedings of the 9th international conference on Flexible Query Answering Systems
On possibilistic skyline queries
FQAS'11 Proceedings of the 9th international conference on Flexible Query Answering Systems
A fuzzy-rule-based approach to the handling of inferred fuzzy predicates in database queries
FQAS'11 Proceedings of the 9th international conference on Flexible Query Answering Systems
Representing and reasoning with qualitative preferences for compositional systems
Journal of Artificial Intelligence Research
PrefDB: bringing preferences closer to the DBMS
SIGMOD '12 Proceedings of the 2012 ACM SIGMOD International Conference on Management of Data
Composition and efficient evaluation of context-aware preference queries
DASFAA'12 Proceedings of the 17th international conference on Database Systems for Advanced Applications - Volume Part II
Information Sciences: an International Journal
Semantics and pragmatics of preference queries in digital libraries
ECDL'07 Proceedings of the 11th European conference on Research and Advanced Technology for Digital Libraries
Exploiting preference queries for searching learning resources
EC-TEL'07 Proceedings of the Second European conference on Technology Enhanced Learning: creating new learning experiences on a global scale
On a preference query language that handles symbolic scores
ADBIS'12 Proceedings of the 16th East European conference on Advances in Databases and Information Systems
Semi-skyline optimization of constrained skyline queries
ADC '11 Proceedings of the Twenty-Second Australasian Database Conference - Volume 115
A framework for query refinement with user feedback
Journal of Systems and Software
On modeling query refinement by capturing user intent through feedback
ADC '12 Proceedings of the Twenty-Third Australasian Database Conference - Volume 124
Flexible and extensible preference evaluation in database systems
ACM Transactions on Database Systems (TODS)
PAQO: a preference-aware query optimizer for PostgreSQL
Proceedings of the VLDB Endowment
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Current search engines can hardly cope adequately with fuzzy predicates defined by complex preferences. The biggest problem of search engines implemented with standard SQL is that SQL does not directly understand the notion of preferences. Preference SQL extends SQL by a preference model based on strict partial orders (presented in more detail in the companion paper [Kie02]), where preference queries behave like soft selection constraints. Several built-in base preference types and the powerful Pareto operator, combined with the adherence to declarative SQL programming style, guarantees great programming productivity. The Preference SQL optimizer does an efficient re-writing into standard SQL, including a high-level implementation of the skyline perator for Pareto-optimal sets. This pre-processor approach enables a seamless application integration, making Preference SQL available on all major SQL platforms. Several commercial B2C portals are powered by Preference SQL. Its benefits comprise cooperative query answering and smart customer advice, leading to higher e-customer satisfaction and shorter development times of personalized search engines. We report practical experiences ranging from m-commerce and comparison shopping to a large-scale performance test for a job portal.