Journal on Data Semantics V (original) (raw)
Related papers
2006
Volume Editors Stefano Spaccapietra École Polytechnique Fédérale de Lausanne, EPFL IC LBD, Station 14 1015 Lausanne, Switzerland E-mail: stefano. spaccapietra@ epfl. ch Karl Aberer Philippe Cudré-Mauroux École Polytechnique Fédérale de Lausanne, EPFL I and C, LSIR, Station 14 1015 Lausanne, Switzerland E-mail:{karl. aberer, philippe. cudre-mauroux}@ epfl. ch Library of Congress Control Number: 2006929224 CR Subject Classification (1998): H. 2, H. 3, I. 2, H. 4, C. 2 LNCS Sublibrary: SL 3–Information Systems and Application, incl.
Data semantics: What, where, and how
Database Application Semantics, 1995
At the panel held during the last session of the DS-6 conference, four panelists --Leo Mark, Robert Meersman, Sham Navathe, and Arnon Rosenthal --addressed the key questions related to the topic of the conference, related their perspectives to what was presented and discussed at the conference, and suggested research issues in data semantics that they would like to see addressed in the future. The panel was organized, introduced, and moderated by the author. Several conference participants also presented short position statements during the panel. This chapter summarizes the lively and often insightful panel discussion, along with additional thoughts of the author/moderator.
Lecture Notes in Computer Science, 2008
The traditional perception of isolated data systems is changing to a new one where the interest of a real and efficient interoperation among those data systems is recognized. However, many problems must be solved yet before a real interoperation becomes true. In order to overcome the existing problems, there is a considerable number of proposals that can be found in the specialized literature that promote the idea of semantic interoperability. A new framework to achieve semantic interoperability among agent based data systems at a communication level is proposed in this paper. This framework permits agents belonging to different data systems 1) to send each other suitable messages without requiring the establishment of a common communication pattern in advance; 2) to understand, completely or partially, those messages that are interchanged among themselves; and 3) to invoke web services offered by the data systems at a high level without needing to go into technical details. An ontology that captures the semantics of different communication acts is the key element for supporting the functionalities provided by the framework. Furthermore, the framework has been extended to support semantic descriptions of web services, which favor their automatic discovery. The usefulness of the presented framework is evaluated using two case study of interoperation among heterogeneous data systems; on one side through the agents of those systems, and on the other side, through the combination of an agent and a web service. This work is supported by a grant of the Basque Government. All authors are members of the Interoperable DataBases Group, online at http://siul02.si.ehu.es. This work is mainly supported by the University of the Basque Country, Diputación Foral de Gipuzkoa (cosupported by the European Social Fund) and CICYT [TIN2004-07999-C02-00].
2005
The problem of data semantics is establishing and maintaining the correspondence between a data source and its intended subject matter. We review the long history of the problem in Databases, and contrast it with recent research on the Semantic Web. We then propose two new directions for research on the problem and sketch some open research questions.
Aspects of data semantics: Names, species and complex physical objects
Lecture Notes in Computer Science, 1978
Investigating the definition of administrative information systems in the LEGOL Project using legislation as experimental material, a new approach to data semantics is found necessary. The emphasis is upon the operations linking data to reality.
Some practical problems and their influence on semantics
1996
This paper offers an assessment of what has been achieved in three decades of work on the semantics of programming languages and pinpoints some practical problems in computing which might stimulate further research. The examples sketched in this paper come from the author's own research on concurrent object oriented languages, from database practice, and from more speculative research on Internet issues.
INFORMATION SYSTEM APPROACH TO SEMANTICS
ABSTRACT The proposed here approach presents the language as an information system with two connected levels of representation – one which concerns basic semantic primitives and operators and one which concerns the grammatical level of the natural language. We assume that there is a common general underlying semantic scheme for all languages and that any grammatical rule can be represented as consisting of some semantic primitives /internal representations, which are mind-operable. The Language Faculty is a highly non-redundant system. What is the extent of the inter-set mapping that the system permits? Can, for example, statives be characterized by the aspectual (change-of-state) property of dynamic domains? The claim advanced in this paper is that this kind of attribution constitutes a violation of the rule that preserves domain specific properties. A change-of-state characteristic is preserved for the semantic interpretation of the dynamic functions of verbs. In the first part of this paper, it is shown that in Russian, the Instrumental case marking on the secondary predicate implies a choice-of-state operation. It is explained why a change-of-state cannot be attributed to stative domains of adjectives and nouns, and the conditions are established for the interpretation of a choice-of-state function. It is supposed that the semantic representation of events must be treated separately from the analysis of objects’ states and characteristics. The proposed approach to Language as Information System is developed in the second part of the paper. Secondary predication in Russian is modeled by means of a ‘connected to the semantic level database’ (SDB), and the links between basic semantic units and grammar are analyzed. The results obtained from the SDB reports confirm that the semantic representation of events must be treated separately from the analysis of objects’ states and characteristics. They also show that the Instrumental case marking implies a choice-of-state mind operator independently of a function on events. KEYWORDS Language Information System, Semantic Level
Semantics is the study of meaning in language. This clear and comprehensive textbook is the most up-to-date introduction to the subject available for undergraduate students. It not only equips students with the concepts they need in order to understand the main aspects of semantics, it also introduces the styles of reasoning and argument which characterize the field. It contains more than 200 exercises and discussion questions designed to test and deepen readers' understanding. More inclusive than other textbooks, it clearly explains and contrasts different theoretical approaches, summarizes current debates, and provides helpful suggestions for further reading. Examples are drawn both from major world languages, such as Mandarin Chinese, Japanese, Arabic, Spanish and English, and from minority ones. The book also highlights the connections between semantics and the wider study of human language in psychology, anthropology and linguistics itself.