Real-time computer systems: current and future trends

The possibilities of increasing the likelihood of timely service and reducing the average waiting time for requests for inter-machine exchange in distributed real-time computer systems are investigated. The analyzed effect is achieved as a result of redundant multi-way transmissions of packets that are critical to delays, which provide for the replication of transmitted packets with the task for each replica of the path (route) of the sequential passage of network nodes. The condition for the timeliness of the reserved transmissions is that the accumulated waiting in the queues of the nodes making up the path, at least for one of the replicas, does not exceed the maximum permissible time. An analytical model is proposed for estimating the average delays of multi-path redundant transmissions, when determined by the average delivery time of the first of the replicas transmitted in different ways. For requests critical to service delays, the influence of the frequency of reservation (replication) of requests on the probability of their timely service and the average waiting time accumulated at the nodes of the path for the replica delivered first was analyzed.

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Future Trends in 3D Intravascular Ultrasound (IVUS) Reconstruction

Intravascular Imaging - Advances in Bioinformatics and Biomedical Engineering ◽

10.4018/978-1-61350-095-8.ch021 ◽

2011 ◽

pp. 355-359

Author(s):

George D. Giannoglou ◽

Antonios P. Antoniadis

Keyword(s):

Real Time ◽

Intravascular Ultrasound ◽

Future Trends ◽

Coronary Anatomy ◽

Recent Advances ◽

Reconstruction Software ◽

Further Development

Recent advances in geometrically correct 3D IVUS reconstruction enable the depiction of the true coronary anatomy by combining IVUS data with biplane angiographic images. Further development of the existing 3D IVUS reconstruction software, in conjunction with advancing hardware capabilities, is expected to allow the implementation of real-time 3D IVUS reconstruction within the catheterization laboratories.

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Commonsense Reasoning in Intelligent Computer Systems

Machine Learning Methods for Commonsense Reasoning Processes ◽

10.4018/978-1-60566-810-9.ch013 ◽

2010 ◽

pp. 366-401

Author(s):

Xenia Naidenova

Keyword(s):

Computer Systems ◽

Knowledge Organization ◽

Future Trends ◽

Commonsense Reasoning ◽

Organization And Management ◽

Intelligent Computer

This chapter deals with the description of possible mechanisms for data-knowledge organization and management in intelligent computer systems. Challenges and future trends will be discussed in the last section of this chapter, followed by the concluding remarks.

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Interactive IR in OPAC Environments

Interactive Information Retrieval in Digital Environments ◽

10.4018/978-1-59904-240-4.ch002 ◽

2008 ◽

pp. 29-52

Author(s):

Iris Xie

Keyword(s):

Real Time ◽

Computer Technology ◽

Computer Systems ◽

Relevant Information ◽

University Libraries ◽

Retrieval Systems ◽

Interactive Retrieval ◽

Online Catalogs ◽

Computer Based ◽

The 1960S

Online catalogs are types of interactive computer systems; they can also be called “interactive catalogs” because a user interacts with the computer to find relevant information. The interaction is the main difference between Online Public Access Catalogs (OPACs) and other types of library catalogs (Hildreth, 1982; Matthews, 1985). Online catalogs are regarded as real-time interactive retrieval systems for libraries (Fayen, 1983). According to Peters (1991), the development of online catalogs can be characterized by three decades of development. In the 1960s, the development of online catalogs was led by the development of computer technology and the library community’s desire to increase efficiency in finding library materials. In the 1970s, commercial vendors started to replace large university libraries as the principal developers of computer-based library systems. In the 1980s, local libraries expand their control of the library catalog systems.

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