Results 41 to 50 of about 983,529 (297)
Constraint Databases, Queries, and Query Languages [PDF]
We formally define the constraint database model, the concept of query in this model, and the basic constraint query languages provided by the relational calculus, the relational algebra, and DATALOG. We show how a computationally complete constraint query language can be obtained by augmenting the constraint relational calculus with basic programming ...
openaire +3 more sources
Abstract An important application of XML is the interchange of electronic data (EDI) between multiple data sources on the Web. As XML data proliferates on the Web, applications will need to integrate and aggregate data from multiple source and clean and transform data to facilitate exchange.
Alin Deutsch +4 more
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Polynomial conjunctive query rewriting under unary inclusion dependencies [PDF]
Ontology-based data access (OBDA) is widely accepted as an important ingredient of the new generation of information systems. In the OBDA paradigm, potentially incomplete relational data is enriched by means of ontologies, representing intensional ...
Kikot, Stanislav +5 more
core +1 more source
Discover, Reuse and Share Knowledge on Service Oriented Architectures
Current Semantic Web frameworks provide a complete infrastructure to manage ontologies schemes easing information retrieval with inference support. Ideally, the use of their frameworks should be transparent and decoupled, avoiding direct dependencies ...
Lei Shu +2 more
doaj +1 more source
AbstractWe investigate the relationship between programming with constraints and database query languages. We show that efficient, declarative database programming can be combined with efficient constraint solving. The key intuition is that the generalization of a ground fact, or tuple, is a conjunction of constraints over a small number of variables ...
KANELLAKIS PARIS +2 more
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Toward multi-lingual information retrieval system based on internet linguistic diversity measurement
We introduce a method for measuring the quantity of online content of a set of languages at domain level. This measurement is used for building a Multi-Lingual Information Retrieval (MLIR) system that identifies which languages are strongly represented ...
Ebtsam Mohamed +2 more
doaj +1 more source
ABSTRACT Introduction Physical rehabilitation is highly recognised in improving the quality of life of cancer survivors through prehabilitation, sequelae management and palliative care, yet its integration into routine care in Ghana has not been characterised, leading to potential gaps in service access.
Dorothy Ekua Adjabu +5 more
wiley +1 more source
HSM-QA: Question Answering System Based on Hierarchical Semantic Matching
In recent years, Question Answering (QA) systems have gained popularity as a means of acquiring knowledge. However, the prevalent approach of matching question-answer pairs still suffers from low precision and efficiency due to the inherent ambiguity of ...
Jinlu Zhang +4 more
doaj +1 more source
ABSTRACT Background Survivorship care plans (SCPs) summarize cancer treatment and guide risk‐based follow‐up for cancer survivors, yet remain difficult to create, share, and use. Stakeholder perspectives are needed to inform usable approaches.
Molly S. Talman +4 more
wiley +1 more source
A business process or workflow is an assembly of tasks that accomplishes a business goal. Business process management is the study of the design, configuration/implementation, enactment and monitoring, analysis, and re-design of workflows.
Yan Tang, Isaac Mackey, Jianwen Su
doaj +1 more source

