Titlebook: In Search of Elegance in the Theory and Practice of Computation; Essays dedicated to Val Tannen,Limsoon Wong,Michael Fourman Book 2013 Spr

現(xiàn)任者

User Trust and Judgments in a Curated Database with Explicit Provenance,els of trust in sources and users change dynamically. In such settings, users must use their judgment as they collect and modify data. As an example, a battlefield information officer preparing a report to inform his or her superiors about the current state of affairs must gather and integrate data

Forage飼料

An Abstract, Reusable, and Extensible Programming Language Design Architecture,etermine (1)?the specific nature of the computational services such a language is designed for, (2)?for what users it is intended, and (3)?on what devices and in what environment it is to be used. It is therefore possible to propose a set of basic building blocks and operations thereon as combinatio

motivate

A Discussion on Pricing Relational Data,d. We advocate for a framework where the seller defines a ., by essentially stipulating the price of some queries, and the buyer is allowed to purchase data expressed by any query they wish: the system will derive the price automatically from the pricing scheme. We show that, in order to understand

monopoly

Tractable Reasoning in Description Logics with Functionality Constraints,d an ontology, where the latter is a set of logical assertions. Ontological query answering has applications, for instance, in the Semantic Web and in semantic data integration. We propose as ontology language a new description logic, called DLR., allowing for roles of arbitrary arity and role inclu

疲憊的老馬

BUCK

abolish

Supplement

Data Quality Problems beyond Consistency and Deduplication,uplication. This paper accentuates several other challenging issues that are essential to developing data cleaning systems, namely, error correction with performance guarantees, unification of data repairing and record matching, relative information completeness, and data currency. We provide an ove

清澈

GENUS

Looking at the World Thru Colored Glasses,inburgh database group and led to the MONDRIAN annotation management system and the . archiving system, respectively. In this paper, we present an application of MONDRIAN to represent and query the history of evolving databases. We show how the annotation model and query language underlying MONDRIAN