We present a portfolio selection methodology that responds to three major goals that most R&D organizations are concerned with – effectiveness, efficiency, and balance. The methodology uses a strategy-oriented, multi-criterion, evaluation model that integrates concepts from data envelopment analysis (DEA) and balanced scorecard (BSC). It is based on two subsequent phases. At the first phase ind...

Set intersection is a fundamental operation for evaluating conjunctive queries in the context of scientific data analysis. The state-of-the-art approach in performing set intersection, compressed bitmap indexing, achieves high computational efficiency because of cheap bitwise operations; however, overall efficiency is often nullified by the HPC I/O bottleneck, because compressed bitmap indexes ...

In this paper we address the problem of authenticated query processing in outsourced databases. An authenticated query processing mechanism allows a client to verify the validity of the query responses that it gets from an un-trusted and remote server, who stores the client’s database on its behalf. We introduce a general framework called RDAS for the problem of authenticated query processing, ...

The paper presents the comparative assessment results of 53 collection samples winter hexaploid triticale various ecological and geographical origin using traditional statistical methods complex indices ( Jk ), perspectivity Jp plasticity Jsp Finno-Scandinavian FSJ Mexican Mi adaptive potential. By method, high-yield varieties with high values individual elements plant productivity were identif...

In structural reliability analysis, simulation methods are widely used. The statistical characteristics of failure probability estimate these have been well investigated. this study, the sensitivities and its with regard to sample, called ‘contribution indexes’, proposed measure contribution sample. indexes in four methods, i.e., Monte Carlo (MCS), importance sampling (IS), line (LS) subset (SS...

Wavelet transforms are used in number of important signal and image processing tasks including image coding. The choice of the filter bank is very important and is directly linked to the efficiency of the compression. An objective criterion to guide the choice of the wavelet filters is proposed. It is composed of two indexes. The first one is a frequency index computed from the aliasing of the ...

Surprisingly enough, it is not yet known how to build directly a suffix array that indexes just the k positions at word-boundaries of a text T [1, n], taking O(n) time and O(k) space in addition to T . We propose a class-note solution to this problem that achieves such optimal time and space bounds. Word-based versions of indexes achieving the same time/space bounds were already known for suffi...

OBJECTIVES To investigate the effect of visual field defects on driving performance, and to predict practical fitness to drive. METHODS The driving performance of 87 subjects with visual field defects due to ocular abnormalities was assessed on a driving simulator and during an on-road driving test. OUTCOME MEASURES The final score on the on-road driving test and simulator indexes, such as ...

Using simultaneous pressure-volume measurements obtained during cardiac catheterization, we employ the thermodynamic phase-plane (TPP) method to characterize global contraction-relaxation coupling (CRC) between normal and impaired left ventricular (LV) ejection fraction (LVEF) groups. The cardiac cycle inscribes a closed loop in the TPP defined by the coordinates "potential" power [V(dP/dt), er...