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Mapping-driven XML transformation

... from the source data based on schema mappings). We present a three-phase framework for high-performance XML-to-XML transformation based on ...

Publication - erhard - 06/15/2023 - 06:42 - 0 comments - 1 attachment

Mapping XML and Relational Schemas with Clio

... Schema Matching, the process of matching elements of a source schema with elements of a target schema, and Schema Mapping, the process of creating a query that ...

Publication - massmann - 04/17/2013 - 10:16 - 0 comments - 1 attachment

Translating Web Data

... problem in modern information systems. We present a novel framework for mapping among XML and relational schemas in which a high-level mapping is translated into semantically meaningful queries that ... Our approach works in two phases. In the rst phase, a high-level mapping, expressed as a set of attribute-to-attribute ...

Publication - massmann - 04/17/2013 - 09:27 - 0 comments - 0 attachments

Quasi-inverses of schema mappings

... the exact semantics of this operator turned out to be a fairly delicate task. Furthermore, this notion is rather restrictive, since it is rare that a schema mapping possesses an inverse. In this paper, we introduce and study ...

Publication - huliganka - 04/17/2013 - 02:49 - 0 comments - 1 attachment

Constraint-based XML query rewriting for data integration

... 0 Citations range:  n/a Attachment Size ... We study the problem of answering queries through a target schema, given a set of mappings between one or more source schemas and ...

Publication - huliganka - 04/17/2013 - 00:38 - 0 comments - 1 attachment

Nested Mappings: Schema Mapping Reloaded

... Fuxman, A.; Hernandez, M.A.; Ho, H.; Miller, R.J.; Papotti, P.; Popa, L. ...

Publication - huliganka - 04/17/2013 - 00:05 - 0 comments - 1 attachment

Query reformulation with constraints

... Deutsch, A.; Popa, L.; Tannen, V. Author:  ... 0 Citations range:  ...

Publication - huliganka - 04/16/2013 - 23:38 - 0 comments - 1 attachment

Composing Schema Mappings: Second-Order Dependencies to the Rescue

... 486.39 KB A schema mapping is a specification that describes how data structured under one schema (the ... schema) is to be transformed into data structured under a different schema (the target schema). A fundamental problem is composing ...

Publication - cat - 04/16/2013 - 19:16 - 0 comments - 1 attachment

XML mapping technology: Making connections in an XML-centric world

... 0 Citations range:  n/a Attachment Size ... which diverse kinds of information can be represented as a result of the self-describing nature and extensibility of XML itself. The ...

Publication - cat - 04/16/2013 - 18:05 - 0 comments - 1 attachment

Preserving mapping consistency under schema changes

... their semantics, and their query capabilities.When a mapping is left inconsistent by a schema change, it has to be detected and updated. We present a novel ...

Publication - admin - 04/16/2013 - 17:38 - 0 comments - 1 attachment

Clio Grows Up: From Research Prototype to Industrial Tool

... schema mappings, has progressed in the past few years from a research prototype into a technology that is behind some of IBM's mapping technology. Clio provides a ...

Publication - admin - 04/16/2013 - 13:38 - 0 comments - 1 attachment

Schema mapping evolution through composition and inversion

... building blocks for many information integration tasks. A schema mapping is a high-level specification of the relationship between two schemas, and ...

Publication - cat - 04/16/2013 - 12:16 - 0 comments - 0 attachments

Mapping Adaptation under Evolving Schemas

... reflected in the mappings. Mappings left inconsistent by a schema change have to be detected and updated. As large, complicated ... view definitions) is becoming impractical. We present a novel framework and a tool (ToMAS) for automatically adapting mappings as ...

Publication - cat - 04/16/2013 - 10:49 - 0 comments - 1 attachment

The Clio Project: Managing Heterogeneity

... 564.77 KB Clio is a system for managing and facilitating the complex tasks of heterogeneous data ... and integration. In Clio, we have collected together a powerful set of data management techniques that have proven invaluable in ... present the underlying themes of our approach and present a brief case study. (cs.toronto.edu) ...

Publication - massmann - 04/16/2013 - 10:38 - 0 comments - 1 attachment

Semantic Adaptation of Schema Mappings when Schemas Evolve

... depending on the schemas, such as schema mappings. In a heterogenous environment, where cooperation among data sources depends ... mappings and the evolution. We design and implement a mapping adaptation system based on mapping composition as well as ...

Publication - cat - 04/16/2013 - 09:16 - 0 comments - 1 attachment

An Equational Chase for Path-Conjunctive Queries, Constraints, and Views

... 0 Citations range:  n/a We consider the class of path-conjunctive queries ...

Publication - huliganka - 04/16/2013 - 05:38 - 0 comments - 0 attachments

Top-k generation of integrated schemas based on directed and weighted correspondences

... Radwan, A; Popa, L; Stanoi, IR; Younis, A Author:  ...

Publication - cat - 04/16/2013 - 04:16 - 0 comments - 1 attachment

Interactive generation of integrated schemas

... Schema integration is the problem of creating a unified target schema based on a set of existing source schemas that relate to each other via specified ...

Publication - cat - 04/16/2013 - 04:05 - 0 comments - 1 attachment

Simplifying Information Integration: Object-Based Flow-of-Mappings Framework for Integration

... execution of schema mappings. We now use Clio as part of a broader data-flow framework in which mappings are just one component. These ... we describe how we use Unified Famous Objects (UFOs), a schema abstraction similar to business objects, as our data model, how we ...

Publication - cat - 04/15/2013 - 22:49 - 0 comments - 0 attachments