Justin J. Levandoski
Mohamed F. Mokbel
Abstract
We demonstrate CareDB, a context and preference-aware database system. CareDB provides scalable personalized location-based services to users based on their preferences and current surrounding context. Unlike existing location-based database systems that answer queries based solely on proximity in distance, CareDB considers user preferences and various types of context in determining the answer to location-based queries. To this end, CareDB does not aim to define new location-based queries, instead, it aims to redefine the answer of existing location-based queries. To achieve its goals, CareDB has several distinguishing characteristics that revolve around a generic and extensible preference and context-aware query processing framework that addresses (a) scalable, efficient preference joins, (b) gracefully handling contextual attributes that are expensive to derive, and (c) support for uncertain attributes.
- ABI Research. GPS-Enabled Location-Based Services (LBS) Subscribers Will Total 315 Million in Five Years. http://www.abiresearch.com/abiprdisplay.jsp?pressid=731. September, 27, 2006.Google Scholar
- S. Börzsönyi, D. Kossmann, and K. Stocker. The Skyline Operator. In ICDE, 2001.Google ScholarDigital Library
- C.-Y. Chan, H. Jagadish, K.-L. Tan, A. K. Tung, and Z. Zhang. Finding k-Dominant Skylines in High Dimensional Space. In SIGMOD, 2006. Google ScholarDigital Library
- C.-Y. Chan, H. Jagadish, K.-L. Tan, A. K. Tung, and Z. Zhang. On High Dimensional Skylines. In EDBT, 2006. Google ScholarDigital Library
- S. Chaudhuri and L. Gravano. Evaluating Top-K Selection Queries. In VLDB, 1999. Google ScholarDigital Library
- W. Jin, M. Morse, J. Patel, M. Ester, and Z. Hu. Evaluating Skylines in the Presence of Equi-joins. In ICDE, 2010.Google ScholarCross Ref
- J. J. Levandoski, M. F. Mokbel, and M. E. Khalefa. FlexPref: A Framework for Extensible Preference Evaluation in Database Systems. In ICDE, 2010.Google ScholarCross Ref
- Microsoft MapPoint: http://www.microsoft.com/mappoint/.Google Scholar
- National Weather Service Web Service: http://www.weather.gov/xml/.Google Scholar
- PostgreSQL: http://www.postgresql.org.Google Scholar
- V. Raghavan and E. Rundensteiner. Progressive Result Generation for Multi-Criteria Decision Support Queries. In ICDE, 2010.Google ScholarCross Ref
- A. M. Rashid, I. Albert, D. Coslely, S. K. Lam, S. M. McNee, J. A. Konstan, and J. Riedl. Getting to Know You: Learning New User Preferences in Recommender Sysetems. In IUI, 2002. Google ScholarDigital Library
- Yahoo Traffic Web Services: http://developer.yahoo.com/traffic/.Google Scholar
- M. L. Yiu and N. Mamoulis. Efficient Processing of Top-k Dominating Queries on Multi-Dimensional Data. In VLDB, 2007. Google ScholarDigital Library
Index Terms
- CareDB: a context and preference-aware location-based database system
Recommendations
Equivalence and minimization of conjunctive queries under combined semantics
ICDT '12: Proceedings of the 15th International Conference on Database TheoryThe problems of query containment, equivalence, and minimization are fundamental problems in the context of query processing and optimization. In their classic work [2] published in 1977, Chandra and Merlin solved the three problems for the language of ...
Scalable and efficient processing of top-k multiple-type integrated queries
AbstractIn this paper, we define a new class of queries, the top-k multiple-type integrated query (simply, top-k MULTI query). It deals with multiple data types and finds the information in the order of relevance between the query and the object. Various ...
Query containment under bag and bag-set semantics
Conjunctive queries (CQs) are at the core of query languages encountered in many logic-based research fields such as AI, or database systems. The majority of existing work assumes set semantics but often in real applications the manipulation of ...
Comments