Over the years, many XML schema matching systems have been developed. A benchmark for assessing the capabilities of schema matching systems and providing uniform conditions and the same testbed for all schema matching prototypes, has become indispensable as the matching systems grow in complexity. However, developing a benchmark for the schema matching problem is very challenging, given the wid...

Abstract Preliminary aircraft design and cabin are essential well-established steps within the product development cycle for modern passenger aircraft. In practice, execution usually takes place sequentially, with preliminary defining a basic layout detail implementation following in subsequent step. To enable higher fidelity assessment of early process—for example by means virtual reality appl...

This paper presents a new schema for handling nonlinear morphology. The schema argues for linearizing nonlinear representations before applying phonological and morphological rules.

Networks of interconnected neocortical representations of prior knowledge, "schemas," facilitate memory for congruent information. This facilitation is thought to be mediated by augmented encoding and accelerated consolidation. However, it is less clear how schema affects retrieval. Rodent and human studies to date suggest that schema-related memories are differently retrieved. However, these s...

Schemas are a key concept in strategy and organization theory. While much is known about the value of schemas and their use and structure, direct examination of how new schemas emerge are lacking. Our study of the life insurance industry’s development of the business computer schema from 1945-1975 addresses this gap. We find that schema emergence involves three key processes: (1) assimilation i...

Schema mappings play a central role in both data integration and data exchange, and are understood as high-level specifications describing the relationships between data schemas. Based on these specifications, data structured under a source schema can be transformed into data structured under a target schema. During the transformation some structural constraints, both context-free (the structur...

The paper is a contribution to the problem of semantics-preserving schema restructuring. First, the notion of schema transformation is precisely analysed, its properties of reversibility are stated and an adequate notation is proposed. Then, the paper develops a general family of entity-generating transformations, i.e. operations that add/remove entity types in a schema. This generic transforma...

A data schema is a set of constructs that emulate relations between domain instances. Schema evolution is changes in the data schema and a system of data consistency support for such modifications. Axiomatic model regulates modifications and maintains data consistency by ensuring that the data schema always satisfies a set of axioms. This paper is an extension to previous work, which has define...

This paper describes a technique to support interoperable query processing when multiple heterogeneous knowledge servers are accessed. The problem is to support query transformation transparently, so a user can pose queries locally, without any need of global knowledge about diierent data models and schema. In a companion paper, an architecture for supporting interoperability was described and ...

Schema matching, the process of matching between concepts describing the meaning of data in heterogeneous, distributed data sources (e.g. database schemata, XML DTDs, HTML form tags, etc.) is one of the basic operations required by the process of data integration. Recently, several algorithms for automatic schema matching have been proposed and evaluated in the database community. While in many...