TOWARDS THE ALGEBRAIC ANALYSIS OF HYPERLINK STRUCTURES

Structuring media objects such as text or graphics by means of XML is a broadly discussed issue in hypermedia modelling. Thereby, an entire hypermedia document is not only arranged in such a way that different developers may interchange data and have easy access to the inner structure of media objects. Moreover, utilizing a given document structure to find new possibilities of linking documents is a major concern. Formal approaches, however, rarely appear in this context. In this paper, we contribute to formally structuring media objects and their linkage, thereby aiming at analyzing hyperlink structures. That is, properties of hyperlink structures such as reachability, existence of certain paths through a hyperdocument, or dangling links may be verified mathematically in advance of implementing the hyperdocument. Algebraic specifications serve as a formal model which allows to obtain algebras reflecting hyperlink structures and which is open to analyze their static properties.

Download Full-text

Supporting the Genealogical Document Transcription Process

International Journal of Social and Organizational Dynamics in IT ◽

10.4018/ijsodit.2013100101 ◽

2013 ◽

Vol 3 (4) ◽

pp. 1-18

Author(s):

Enric Mayol ◽

Maria José Casañ

Keyword(s):

Family History ◽

Information Sources ◽

Reference Model ◽

Easy Access ◽

Digital Information ◽

Conceptual Schema ◽

Document Structure ◽

Transcription Process ◽

Vital Records ◽

Digital Documentation

Lately, genealogy has been becoming a new popular activity and has increasing interest due to the easy access to heritage documentation on internet and digital documentation. The main interesting information sources for genealogy research are different kinds of genealogical documents (census, church vital records, wills, …). In Spain, several projects to digitalize heritage and genealogical documentation have developed recently, in order to improve its access and to preserve its conservation state. Such digital information is useful, but it would be even more useful to have its transcription in a persistent and searchable support like databases or web repositories. However, there not exist any standard proposal of what must be the contents of these database repositories. In this paper the authors describe main characteristics of a tool to support the transcription process of genealogical documentation. This tool allows for easy, intuitive and fast transcription of genealogical documentation, in agreement with the contents of each different kind of genealogical documents. Given an model describing a genealogical document structure and contents, our tool supports the user to transcribe the document contents. The authors also propose a conceptual schema to model and to describe, in a generic and uniform way, the main contents of such genealogical documentation of interest for genealogy and family history research. This model should be a first step to have a reference model to describe heritage documents, to facilitate the transcription process and to share transcribed data among different researchers and databases.

Download Full-text

Database-Driven Product Catalog System

Web-Powered Databases ◽

10.4018/978-1-59140-035-6.ch006 ◽

2003 ◽

pp. 144-174

Author(s):

Johanna Wenny Rahayu ◽

Andrew Flahive ◽

David Taniar

Keyword(s):

Product Information ◽

Information Storage And Retrieval ◽

Information Storage ◽

Easy Access ◽

Web Based ◽

Storage And Retrieval ◽

Efficient Access ◽

The World ◽

Media Objects ◽

Catalog System

A Web-based Product Catalog is an online product database that requires easy access from anywhere in the world and uses the most efficient method for information retrieval. The database should support all products no matter what attributes the products have. Many large businesses have been unsuccessful in their attempts to create a product database that enables fast, efficient access across the Web. As there are many complex issues involved with the storage of product information, many companies settle for poorly designed databases as a tradeoff to becoming Web compatible faster. This chapter explores database-driven E-Commerce product catalogs and the issues that inhibit its creation. A Web-based Product Catalog System has been put forward in this chapter that allows for storage of all product specific information. Storage and retrieval of attributes that have no structure, like media objects (pictures, video clips, audio samples) have also been implemented in this system. Media objects are becoming an important feature to product catalogs, especially those intended for deployment on the Internet. Another important feature supported by the system is the ability switch between languages. This multi-language feature allows all of the product information to be understood right around the world, broadening the potential users of the system.

Download Full-text

A Formal Model of Arms Market with Cash-for-Favours

Peace Economics Peace Science and Public Policy ◽

10.1515/peps-2014-0017 ◽

2014 ◽

Vol 20 (3) ◽

pp. 411-428 ◽

Cited By ~ 1

Author(s):

Partha Gangopadhyay

Keyword(s):

Nash Equilibrium ◽

Formal Model ◽

Market Imperfections ◽

Static Properties ◽

Equilibrium Outcome ◽

Arms Trade ◽

Market Production ◽

Choice Variable ◽

First Time

AbstractBoth corruption and market imperfections are important facets of modern arms markets. In the standard literature of arms market, production, procurement, sales (exports) and purchases (imports) of arms take place in the shadow of corruption. Corruption is an integral part of the environment of the arms trade that exerts an influence upon the outcome in the arms market. In our work, we make corruption as a choice variable of the powerful players in the global arms market and examine the equilibrium consequence of corruption that is strategically chosen by armament firms. We develop a simple duopoly to characterize a perfect Nash equilibrium of cash-for-favors and establish perplexing comparative static properties of this equilibrium. The primary intuition here is that cash-for-favors can have serious impacts on the equilibrium of an oligopoly through their effects on the incentives of and constraints on individual firms. We offer a model of endogenous corruption, to our understanding for the first time, to examine the global arms market in order to establish that the equilibrium outcome in the arms market cannot be fully captured by the standard results of oligopoly. Researchers have to extremely careful in applying the standard tools of oligopoly to the arms market as our results suggest that endogenous corruption can reverse most of the known results of oligopoly.

Download Full-text