In this document, we describe the participation of Vienna University of Technology (TUW in German) in both tasks A and B of the TREC Clinical Decision Support (TREC-CDS) Track 2015. Based on the 2014 data, we concluded that query expansion with PRF resulted in large improvements over a BM25 baseline. Thus, we investigate a manner to add an intermediary layer based on a subset of the concepts an...

Within the Global Climate Observing System (GCOS) Reference Upper-Air Network (GRUAN) there is a need for an assessment of the uncertainty in the integrated water vapour (IWV) in the atmosphere estimated from ground-based global navigation satellite system (GNSS) observations. All relevant error sources in GNSS-derived IWV are therefore essential to be investigated. We present two approaches, a...

Along with the significance of information systems in today’s global business operation, the significance of information systems control and audit is ever increasing in the effort to secure accuracy and integrity of vital business data. A study is undertaken to integrate Food and Drug Administration computerized systems validation regulations, Securities & Exchange Commission Sarbanes-Oxley Act...

Diseases must be treated healthy and on time. If they are not treated lying on time, they can escort to many health problems with these problems might become the reason of death. These problems are becoming inferior due to the scarcity of specialists, health facilities and practitioners. In an attempt to address such problems, studies ended attempts toward design and develop expert systems whic...

The article by Homedes and Ugalde in this week’s issue of PLoS Medicine is an important addition to the global discussion about Mexico’s 2003 health reform, the Seguro Popular (SP) [1]. While this reform has been controversial in Mexico [2], it has been highly praised in international circles. The Lancet ran a special series on the reform in 2006, and former U.S. President Bill Clinton lauded S...

Grabner basis is olle of the most important tools ill recent symbolic algebraic computations. Howe\'er, computing a Grobncr basis fo r the given polynomial ideal is lIot easy and it is lIot numcric.. . l1y stable if polynomials have inexact coefficients. I n this paper, we study what we should get for computing a Grabner basis with inexact coefficients alld introduce a naive method to compute a...

This paper presents a range of applications of the Regional Atmospheric Modeling System (RAMS), a comprehensive mesoscale meteorological modeling system. Applications discussed in this paper include large eddy simulations (LES) and simulations of thunderstorms, cumulus fields, mesoscale convective systems, mid-latitude cirrus clouds, winter storms, mechanicallyand thermally-forced mesoscale sys...

This is a revolutionary method which overcomes many of the antenna system analysis problems associated with UWB communication. By using this method, the antenna system is analyzed from the viewpoint of antenna to antenna transfer function, which makes it possible to consider the transmitting antenna and receiving antenna as a complete unit rather than individual element. The refined formulation...

This paper presents a summary of some of the results on dynamic spectrum allocation (DSA) that have been obtained as part of the DRiVE project. During this project two main aspects of DSA were investigated. Temporal DSA attempts to adapt the spectrum allocations of networks to time-varying loads, and spatial DSA adjusts spectrum allocations according to the load demands of different regions. Th...