(I.Ch.:) Department of Algebra and Geometry, Palacký University Olomouc, Tomkova 40, 779 00 Olomouc, Czech Republic (G.Cz. and E.K.H.:) University of Szeged, Bolyai Institute, Szeged, Aradi vértanúk tere 1, HUNGARY–6720. E-mail: [email protected], [email protected], [email protected]

Abstract As the bandwidth increases, high-speed sampling rate becomes bottleneck for development of wideband spectrum sensing. Wideband sensing with sub-Nyquist attracts more attention and modulated converter (MWC) is an attractive system. For purpose breaking system structure limit, advanced framework proposed to simplify MWC structure, adopting single channel a frequency shifting module acqui...

Wireless communication is ubiquitous in people’s daily life. As requirements for wireless continue to increase, how improve system performance has become a core issue that researchers pay attention to. cooperative considered be key technology the future because it can provide better quality, higher capacity, wider coverage, richer services, and high spectrum utilization efficiency. The proposed...

semantic shifting which is one of the most important semantic processes forming the meaning of some linguistic structures was first introduced by safavi (1379). the meaning of different structures such as proverbs, are made by semantic shifting which takes place on the syntagmatic axis, but is shown on the paradigmatic axis. the corpus used in this study consists of 10 persian proverbs which ar...

The theory of constraints is an approach to production planning and control that emphasizes on the constraints to increase throughput by effectively managing constraint resources. One application in theory of constraints is product mix decision. Product mix influences the performance measures in multi-product manufacturing system. This paper presents an alternative approach by using of goal pro...

Co-clustering has emerged as an important approach for mining contingency data matrices. We present a novel approach to co-clustering based on the Information Bottleneck principle, called Information Bottleneck Co-clustering (IBCC), which supports both soft-partition and hardpartition co-clusterings, and leverages an annealing-style strategy to bypass local optima. Existing co-clustering method...

The first positive trend is the slowing of global population growth. There is a significant shift in global fertility that will enable us at least to think about moving to a world of near stable populations within a century, maybe sooner. Fertility in about 40 per cent of the world’s countries is now below the replacement rate. Another 40 per cent are experiencing continued downward movement of...

A matrix S = (sij) ∈ R n×n is said to determine a transitional measure for a digraph Γ on n vertices if for all i, j, k ∈ {1, . . . , n}, the transition inequality sij sjk ≤ sik sjj holds and reduces to the equality (called the graph bottleneck identity) if and only if every path in Γ from i to k contains j. We show that every positive transitional measure produces a distance by means of a loga...

The term ‘bottleneck’ has been extensively used in operations management literature. Management paradigms like the Theory of Constraints focus on the identification and exploitation of bottlenecks. Yet, we show that the term has not been rigorously defined. We provide a classification of bottleneck definitions available in literature and discuss several myths associated with the concept of bott...

We describe the diagnosis and treatment of bottlenecks in computer systems using decison theoretic techniques. The techniques rely on a high-level functional model of the interaction between application workloads, the operating system (Windows NT), and system hardware. Given a workload description, the model predicts the values of system counters observable with the Windows NT performance monit...