Janusz Zalewski

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The author has developed a method of speaker identification,based on representation of speakers by some LPC-coded vowels.The minimum cumulated spectral difference between corresponding test and reference samples was the decision criterion in the recognition task.The experiments reported nere investigated the ability of the modified method to identify(More)
~ This book is primarily devoted to Dash (Directorykchitecture for Shared Memory), a multiprocessor system known from earlier publications (see “The Stanford Dash Multiprocessor,” Computer, Mar. 1992, Vol. 3 5 , No. 3 , pp. 63-79). The book also provides readers with a comprehensive view of modem multiprocessing, as it describes where the technology is(More)
All three books are collections of articles on related subjects that were previously published, mostly in IEEE Computer Society publications. They appear in an unnamedalbeit known for about a decade and highly rated-series of IEEE tutorials. The books have very similar contents; therefore, their joint review seems appropriate. Interconnection Networksfor(More)
chronous, and unbuffered and buffered, message passing. He upgrades algorithms studied in previous chapters so that mutual exclusion can be enforced on distributed systems. The chapter covers SR send and receive instructions, the powerful SR input (in) statement that implements extended rendezvous with two-way information flow, remote procedure calls, and(More)
All three books are collections of articles on related subjects that were previously published, mostly in IEEE Computer Society publications. They appear in an unnamedalbeit known for about a decade and highly rated-series of IEEE tutorials. The books have very similar contents; therefore, their joint review seems appropriate. Interconnection Networksfor(More)
The paper presents guidelines on criteria and procedures for evaluating software development tools used in safety-critical real-time systems. We present, first, a view of the taxonomy of software development tools from the perspective of the development process and the development environment. The investigation concentrates on evaluating the design tools,(More)
In recent decades, safety has emerged as a major issue in many embedded applications in the aerospace, aircraft, automobile, railways, nuclear, medical, and other industries. Safety in this context means avoiding harm to individuals or society due to malfunctioning computer equipment or software. The essential requirements for these systems are so strict(More)
This paper presents an overview and discusses the role of certification in safety-critical computer systems focusing on software, and partially hardware, used in the civil aviation domain. It discusses certification activities according to RTCA DO-178B “Software Considerations in Airborne Systems and Equipment Certification” and touches on tool(More)
This paper discusses the principles of software architectures for real-time systems. The fundamental idea of a real-time architecture is based on the concept of feedback used in control engineering. A generic architecture is derived for three major categories of real-time systems. Then a fundamental design pattern is presented, valid for all major(More)