One of the first steps in the process of integrating information from multiple sources into a desired target format is to specify the relationships, called schema mappings, between the source schemas and the target schema. In this demonstration, we showcase a new methodology for designing schema mappings. Our system Eirene interactively solicits data examples from the mapping designer in order ...

We introduced a new approach, termed schema coordination, as an alternative to the well-known schema integration approach for processing cooperative queries in federated database systems. The schema coordination approach is based on the attribute correspondence matrix that links similar attributes in all component databases. In this paper, we compare the schema coordination approach with the sc...

We address the problem of unsupervised matching of schema information from a large number of data sources into the schema of a data warehouse. The matching process is the first step of a framework to integrate data feeds from thirdparty data providers into a structured-search engine’s data warehouse. Our experiments show that traditional schemabased and instance-based schema matching methods fa...

This paper explores why actors may develop different interpretations of a new concept. It leverages work from cognitive science to define this interpretive process in terms of creating coherence: fitting the new concept into the existing conceptual schema. We argue that variation in conceptualization results in part from cognitively cohering the concept in different ways. We appeal to the socia...

This paper describes the object-oriented design and implementation of an extensible schema manager for object-oriented databases. In order to achieve extensibility, we have adopted an open class hierarch y approach using an ob ject-oriented implementation where an object-oriented database maintains its implementation classes as user-defined classes. A Graphical interface for an Object-Qriented ...

When the schema of an object database system is modiied, the database needs to be changed in such a way that the schema and the database remain consistent with each other. This paper uses the OO1 benchmark 2], appropriately modiied, to compare the two most used approaches for transforming the database, namely the immediate and the deferred database transformation 4]. 1 Immediate vs. Lazy Databa...

Evolutionary linguistics and historical pragmatics can inform each other on a theoretical as well as on a methodological level. This paper introduces a computational model to study the impact of pragmatic factors on language evolution and change. It explores the validity of the frequently cited statement that ‘[i]t would not be entirely inappropriate to regard languages in their diachronic aspe...

This study represents a theoretical investigation of teacher self-efficacy using abductive interpretative phenomenological analysis in the context initial education. We reveal process through which pre-service teacher's self-schema adapts response to his first classroom teaching experience. also observe that narrative has role this adaptation. Consequently, we show is an aspect more generalised...