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Wide-Area Traffic: The Failure of Poisson Modeling
- IEEE/ACM TRANSACTIONS ON NETWORKING
, 1995
"... Network arrivals are often modeled as Poisson processes for analytic simplicity, even though a number of traffic studies have shown that packet interarrivals are not exponentially distributed. We evaluate 24 wide-area traces, investigating a number of wide-area TCP arrival processes (session and con ..."
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Cited by 1775 (24 self)
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with fixed hourly rates, but that other connection arrivals deviate considerably from Poisson; that modeling TELNET packet interarrivals as exponential grievously underestimates the burstiness of TELNET traffic, but using the empirical Tcplib [Danzig et al, 1992] interarrivals preserves burstiness over many
Empirically-Derived Analytic Models of Wide-Area TCP Connections: Extended Report
, 1994
"... We analyze 2.5 million TCP connections that occurred during 14 wide-area traffic traces. The traces were gathered at five "stub" networks and two internetwork gateways, providing a diverse look at wide-area traffic. We derive analytic models describing the random variables associated with ..."
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Cited by 205 (15 self)
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with telnet, nntp, smtp, and ftp connections, and present a methodology for comparing the effectiveness of the analytic models with empirical models such as tcplib [DJ91]. Overall we find that the analytic models provide good descriptions, generally modeling the various distributions as well as empirical
Abstract Empirically-Derived Analytic Models of Wide-Area TCP Connections ∗
"... We analyze 3 million TCP connections that occurred during 15 wide-area traffic traces. The traces were gathered at five “stub ” networks and two internetwork gateways, providing a diverse look at wide-area traffic. We derive analytic models describing the random variables associated with telnet, nnt ..."
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, nntp, smtp, and ftp connections. To assess these models we present a quantitative methodology for comparing their effectiveness with that of empirical models such as Tcplib [DJ91]. Our methodology also allows us to determine which random variables show significant variation from site to site, over time
An ATM Traffic Model Based on Empirical Traffic Measurements
"... The characterization of ATM traffic is very important in many aspects such as validating traffic models, designing congestion control algorithms, implementing communication protocols, and developing switch architectures. In this paper, we present measurements of applications obtained from the High-S ..."
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-Speed Networking and Performance Lab (HSNP) at Michigan State University. These applications are selected based on studies of Wide-Area TCP/IP traffic measurements conducted by Danzig et al. [1, 2, 3]. Experimental results designed to investigate traffic characteristics from a large amount of data collected
Work, Welfare, and Family Structure: What Have We Learned?
, 1996
"... This paper explores the validity of these criticisms using the available empirical evidence and, in turn, evaluates the impact of various reforms to the system. "Welfare" most commonly refers to the Aid to Families with Dependent Children (AFDC) program, which provides cash assistance to l ..."
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Cited by 18 (1 self)
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This paper explores the validity of these criticisms using the available empirical evidence and, in turn, evaluates the impact of various reforms to the system. "Welfare" most commonly refers to the Aid to Families with Dependent Children (AFDC) program, which provides cash assistance
226 IEEWACM TRANSA1310NS ON NETWORKING, VOL.3, NO.3, ftJNE195 Wide Area Traffic: The Failure of Poisson Modeling
"... Abstract — Network arrivats are often modeled as Poisson processes for analytic simplicity, even though a number of traffic studk have shown that packet interarrivals are not exponentially distributed. We evatuate 24 wide area traces, investigating a number of wide area TCP arrival procemea (session ..."
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processes with frxed hourly rates, but that other connection arrivals deviate considerably from Poisson; that modeling TELNET packet interarrivrda as exponential grievously underestimates the burstineaa of TELNET traffic, but using the empirical Tcplib [12] interarrivals preservea burstiness over many time
ASTRONOMY AND ASTROPHYSICS On the abundance gradient of the galactic disk
, 2000
"... Abstract. Estimates of the gas temperature in planetary nebulae obtained from the [O III] emission line ratio and from the Balmer discontinuity indicate differences reaching up to 6000 K (Liu & Danziger 1993). The [O III] temperature is commonly used to obtain the ionic fractions of highly ioniz ..."
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Abstract. Estimates of the gas temperature in planetary nebulae obtained from the [O III] emission line ratio and from the Balmer discontinuity indicate differences reaching up to 6000 K (Liu & Danziger 1993). The [O III] temperature is commonly used to obtain the ionic fractions of highly
Legislation on the Work Effort of Women Heading Households: A Framework for Analysis and the Evidence to Date
, 1984
"... Research on Poverty at the University of Wisconsin by the Urban Institute. I would like to thank Sheldon Danziger, Robert Hutchens, Wendell Primus, Douglas Wolf, and the participants of two workshops at the University of Wisconsin for comments. Expert research assistance was also provided by Luise C ..."
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Research on Poverty at the University of Wisconsin by the Urban Institute. I would like to thank Sheldon Danziger, Robert Hutchens, Wendell Primus, Douglas Wolf, and the participants of two workshops at the University of Wisconsin for comments. Expert research assistance was also provided by Luise
Singapore’s dilemma: Control versus autonomy in IT-led development
- The Information Society
, 2001
"... A frequently debated question is whether technology molds society or is molded by it. From the rst perspec-tive, known as a determinist view of technology (Ebersole, 1995), the Internet carries with it certain types of val-ues, organization, and social structure that will inevitably impact society. ..."
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Cited by 2 (0 self)
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purposes, even using it to increase centralized con-trol. The most extensive empirical study of computeri-zation and political control was carried out by Danziger, Dutton, Kling, and Kraemer (1982), whose analysis of data from some 500 U.S. cities and counties indicated that computerization tended