Understanding the relative criticality of employees is important in managing turnover and security risks associated with human capital in organizations. Traditional social network analysis measures are based on static, survey-based assessments of centrality and other sociometric aspects of organizations, limiting their effectiveness in fully evaluating human capital criticality, particularly cr...

Modern systems nowadays often integrate functionalities of different safety-criticality on the same hardware. Therefore several specialized schedulers have been proposed for these so called mixed-criticality systems, to guarantee all deadlines of high critical jobs, while keeping the quality of service as high as possible. A framework called SF3P was published to effectively simulate and analyz...

Double criticality and its nonlinear implications are considered for stratified N−layer shallow water flows with N = 1, 2, 3. Double criticality arises when the linearization of the steady problem about a uniform flow has a double zero eigenvalue. We find that there are two types of double criticality: non-semisimple (one eigenvector, and one generalized eigenvector), and semi-simple (two indep...

To provide a reference for risk management of water sources, this study screens the key risk supervision areas around river-type water sources (hereinafter referred to as the water sources) threatened by multiple fixed risk sources (the risk sources), and establishes a comprehensive methodological system. Specifically, it comprises: (1) method of partitioning risk source concentrated sub-region...

The identification of critical states is a major task in complex systems, and the availability of measures to detect such conditions is of utmost importance. In general, criticality refers to the existence of two qualitatively different behaviors that the same system can exhibit, depending on the values of some parameters. In this paper, we show that the relevance index may be effectively used ...

We define dual-critical graphs as graphs having an acyclic orientation, where the indegrees are odd except for the unique source. We have very limited knowledge about the complexity of dual-criticality testing. By the definition the problem is in NP, and a result of Balázs and Christian Szegedy [11] provides a randomized polynomial algorithm, which relies on formal matrix rank computing. It is ...

High integrity applications, such as those performing safety or security critical functions, are usually built to conform to standards such RTCA DO178B [1] or UK Def Stan 00-55 [2]. Typically such standards define ascending levels of criticality each of which requires a different and increasingly onerous level of verification. It is very common to find that real systems contain code of multiple...

The paper describes modern technologies of Computer Network Reliability. Software tool is developed to estimate of the CCN critical failure probability (construction of a criticality matrix) by results of the FME(C)A-technique. The internal information factors, such as collisions and congestion of switchboards, routers and servers, influence on a network reliability and safety (besides of hardw...

In this paper criticality within a voting game is rigorously defined and examined. Criticality forms the basis of the traditional voting power measures frequently employed to analyse voting games; therefore understanding criticality is a pre-requisite to understanding any such analysis. The concept of criticality is extended to encompass games in which players are allowed to express multiple le...