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System model

About: System model is a(n) research topic. Over the lifetime, 7667 publication(s) have been published within this topic receiving 81162 citation(s). more


Proceedings ArticleDOI: 10.1145/1282480.1282492
Peter P. Chen1Institutions (1)
22 Sep 1975-
Abstract: A data model, called the entity-relationship model, is proposed. This model incorporates some of the important semantic information about the real world. A special diagrammatic technique is introduced as a tool for database design. An example of database design and description using the model and the diagrammatic technique is given. Some implications for data integrity, information retrieval, and data manipulation are discussed.The entity-relationship model can be used as a basis for unification of different views of data: the network model, the relational model, and the entity set model. Semantic ambiguities in these models are analyzed. Possible ways to derive their views of data from the entity-relationship model are presented. more

Topics: Data model (71%), Semi-structured model (70%), Database design (68%) more

3,690 Citations

Journal ArticleDOI: 10.1109/TAC.2012.2206694
Dong Yue1, Engang Tian2, Qing-Long Han3Institutions (3)
Abstract: This note is concerned with event-triggered H∞ controller design for networked control systems. A novel event-triggering scheme is proposed, which has some advantages over some existing schemes. A delay system model for the analysis is firstly constructed by investigating the effect of the network transmission delay. Then, based on this model, criteria for stability with an H∞ norm bound and criteria for co-designing both the feedback gain and the trigger parameters are derived. These criteria are formulated in terms of linear matrix inequalities. Simulation results have shown that the proposed event-triggering scheme is superior to some existing event-triggering schemes in the literature. more

Topics: Networked control system (62%), Transmission delay (57%), Control system (53%) more

1,023 Citations

Proceedings ArticleDOI: 10.1109/HPDC.1998.709966
Rajesh Raman1, Miron Livny1, Marvin Solomon1Institutions (1)
28 Jul 1998-
Abstract: Conventional resource management systems use a system model to describe resources and a centralized scheduler to control their allocation. We argue that this paradigm does not adapt well to distributed systems, particularly those built to support high throughput computing. Obstacles include heterogeneity of resources, which make uniform allocation algorithms difficult to formulate, and distributed ownership, leading to widely varying allocation policies. Faced with these problems, we developed and implemented the classified advertisement (classad) matchmaking framework, a flexible and general approach to resource management in distributed environment with decentralized ownership of resources. Novel aspects of the framework include a semi structured data model that combines schema, data, and query in a simple but powerful specification language, and a clean separation of the matching and claiming phases of resource allocation. The representation and protocols result in a robust, scalable and flexible framework that can evolve with changing resources. The framework was designed to solve real problems encountered in the deployment of Condor, a high throughput computing system developed at the University of Wisconsin-Madison. Condor is heavily used by scientists at numerous sites around the world. It derives much of its robustness and efficiency from the matchmaking architecture. more

Topics: High-throughput computing (55%), Distributed Computing Environment (55%), System model (54%) more

824 Citations

Journal ArticleDOI: 10.1109/L-CA.2011.4
Abstract: In this paper we present DRAMSim2, a cycle accurate memory system simulator. The goal of DRAMSim2 is to be an accurate and publicly available DDR2/3 memory system model which can be used in both full system and trace-based simulations. We describe the process of validating DRAMSim2 timing against manufacturer Verilog models in an effort to prove the accuracy of simulation results. We outline the combination of DRAMSim2 with a cycle-accurate x86 simulator that can be used to perform full system simulations. Finally, we discuss DRAMVis, a visualization tool that can be used to graph and compare the results of DRAMSim2 simulations. more

Topics: Computer architecture simulator (65%), Memory architecture (55%), System model (51%) more

789 Citations

Proceedings ArticleDOI: 10.1145/345513.345271
01 May 2000-
Abstract: A multiple view system uses two or more distinct views to support the investigation of a single conceptual entity. Many such systems exist, ranging from computer-aided design (CAD) systems for chip design that display both the logical structure and the actual geometry of the integrated circuit to overview-plus-detail systems that show both an overview for context and a zoomed-in-view for detail. Designers of these systems must make a variety of design decisions, ranging from determining layout to constructing sophisticated coordination mechanisms. Surprisingly, little work has been done to characterize these systems or to express guidelines for their design. Based on a workshop discussion of multiple views, and based on our own design and implementation experience with these systems, we present eight guidelines for the design of multiple view systems. more

Topics: Systems design (62%), System model (61%), Design education (57%) more

739 Citations

No. of papers in the topic in previous years

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Topic's top 5 most impactful authors

Bernhard Rumpe

7 papers, 132 citations

Ingo Sander

6 papers, 29 citations

Jean-Yves Choley

5 papers, 66 citations

Volker Schaus

4 papers, 20 citations

Chika O. Nwankpa

4 papers, 80 citations

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