In this contribution, the vulnerabilities of iris-based recognition systems to direct attacks are studied. A database of fake iris images has been created from real iris of the BioSec baseline database. Iris images are printed using a commercial printer and then, presented at the iris sensor. We use for our experiments a publicly available iris recognition system, which some modifications to im...

In this paper we present MD, a logical model for OLAP systems, and show how it can be used in the design of multidimensional databases. Unlike other models for multidimensional databases, MD is independent of any speci c implementation (relational or proprietary multidimensional) and as such it provides a clear separation between practical and conceptual aspects. In this framework, we present a...

Supported by the World Bank, the Integrated Information System for Natural Disaster Mitigation (ISNDM), including the operational service system and network telecommunication system, has been in development for three years in the Center of Disaster Reduction, Chinese Academy of Sciences, based on the platform of the GIS software Arcview. It has five main modules: disaster background information...

The use of geolocation databases for enabling spectrum sharing in the TV bands has been mandated by the Federal Communications Commission (FCC), and it is very likely to be adopted for other spectrum sharing applications as well. Although using geolocation databases is a practical approach for enabling spectrum sharing, it poses a potentially serious privacy problem. Secondary users (queriers),...

Research in the area of maxillofacial and craniofacial surgery almost always comes from images of patients. This paper discusses the possibility of integrating the database for daily medical operational needs together with data for research purposes in the area of maxillofacial and craniofacial surgery. Currently, medical institutions concentrate on systems which have the main function of manag...

Microbial rhodopsins are a diverse group of photoactive transmembrane proteins found in all three domains of life and in viruses. Today, microbial rhodopsin research is a flourishing research field in which new understandings of rhodopsin diversity, function and evolution are contributing to broader microbiological and molecular knowledge. Here, we describe MicRhoDE, a comprehensive, high-quali...

Database support for multidimensional arrays is an area of growing importance; a variety of highvolume applications such as spatio-temporal data management and statistics/OLAP become focus of academic and market interest. RasDaMan is a domain-independent array database management system with server-based query optimization and evaluation. The system is fully operational and being used in intern...

Spreadsheets in financial markets are frequently used as database, calculator and reporting application combined. This paper describes an alternative approach in which spreadsheet design and database technology have been brought together in order to alleviate management and regulatory concerns over the operational risks of spreadsheet usage. In particular, the paper focuses on the rapid creatio...

The aim of the paper is an attempt to introduce a new sequence of functions ( ) ( ) { } , , ; , , / 0,1, 2,... n P x a k s n β γ α = , which involving the Mittage-Leffler function , ( ) E z α β by using operational technique. Some interesting generating relations are obtained in sections 2. The remarkab le thing of this paper is the crucial MATLAB coding of the new sequence of functions, Databa...

We describe an operational middleware platform for maintaining the consistency of replicated data objects, called COPla (Common Object Platform). It supports both eager and lazy update propagation for replicated data in networked relational databases. The purpose of replication is to enhance the availability of data objects and services in distributed database networks. Orthogonal to recovery s...