61 Lakhina PPTs View free & download

Mining Anomalies Using Traffic Feature Distributions Anukool Lakhina Mark Crovella Christophe Diot i PowerPoint PPT Presentation

Mining Anomalies Using Traffic Feature Distributions Anukool Lakhina Mark Crovella Christophe Diot i - Relationship between link traffic and OD flow traffic is captured by the routing ... However, quite intuitively OD flows are correlated. ...

Relationship between link traffic and OD flow traffic is captured by the routing ... However, quite intuitively OD flows are correlated. ...

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Network Anomography PowerPoint PPT Presentation

Network Anomography - A B C OD flow I-b Courtesy: Anukool Lakhina [Lakhina04] OD flow I-b Link c-b Link d-c Link f-d Link l-f Fri Sat Sun bt = At xt (t=1, ...

A B C OD flow I-b Courtesy: Anukool Lakhina [Lakhina04] OD flow I-b Link c-b Link d-c Link f-d Link l-f Fri Sat Sun bt = At xt (t=1, ...

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NetworkWide Security Analysis PowerPoint PPT Presentation

NetworkWide Security Analysis - Network-Wide Security Analysis. Anukool Lakhina. with Mark Crovella and Christophe Diot ... Working Hypothesis: Diagnosis & situational awareness requires a ...

Network-Wide Security Analysis. Anukool Lakhina. with Mark Crovella and Christophe Diot ... Working Hypothesis: Diagnosis & situational awareness requires a ...

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Mining Anomalies Using Traffic Feature Distributions PowerPoint PPT Presentation

Mining Anomalies Using Traffic Feature Distributions - ... Traffic Feature Distributions. Anukool Lakhina, Mark Crovella, Christophe Diot ... A general, unsupervised method for reliably detecting and classifying network ...

... Traffic Feature Distributions. Anukool Lakhina, Mark Crovella, Christophe Diot ... A general, unsupervised method for reliably detecting and classifying network ...

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Radiative meson transitions in the quark model PowerPoint PPT Presentation

Radiative meson transitions in the quark model - in the quark model. Olga Lakhina. University of Pittsburgh. Research Advisor. Eric Swanson ... Using SHO meson wave functions. Dipole (long wave-length) approximation ...

in the quark model. Olga Lakhina. University of Pittsburgh. Research Advisor. Eric Swanson ... Using SHO meson wave functions. Dipole (long wave-length) approximation ...

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Sensitivity of PCA for Traffic Anomaly Detection PowerPoint PPT Presentation

Sensitivity of PCA for Traffic Anomaly Detection - PCA transforms data into new coordinate system ... Cattell's Scree Test. Humphrey-Ilgen. Kaiser's Criterion. None are reliable. 16 ...

PCA transforms data into new coordinate system ... Cattell's Scree Test. Humphrey-Ilgen. Kaiser's Criterion. None are reliable. 16 ...

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Detectability of Traffic Anomalies in Two Adjacent Networks PowerPoint PPT Presentation

Detectability of Traffic Anomalies in Two Adjacent Networks - Christophe Diot. 3. Anomaly detection in large networks ... Validated against multiple networks at different time. Abilene 03, Geant 04, Sprint Europe 03 ...

Christophe Diot. 3. Anomaly detection in large networks ... Validated against multiple networks at different time. Abilene 03, Geant 04, Sprint Europe 03 ...

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The Probability Distribution of Extreme Geomagnetic Events in the Auroral Zone PowerPoint PPT Presentation

The Probability Distribution of Extreme Geomagnetic Events in the Auroral Zone - The Probability Distribution of Extreme Geomagnetic Events in the Auroral Zone R.S. Weigel Space Weather Laboratory Department of Computational and Data Sciences

The Probability Distribution of Extreme Geomagnetic Events in the Auroral Zone R.S. Weigel Space Weather Laboratory Department of Computational and Data Sciences

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Anomaly detection and sequential statistics in time series PowerPoint PPT Presentation

Anomaly detection and sequential statistics in time series - Data collection: phone call records and summaries of an account's previous history ... Sn exceeds a threshold w. Change point detection in network traffic. Data ...

Data collection: phone call records and summaries of an account's previous history ... Sn exceeds a threshold w. Change point detection in network traffic. Data ...

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Sketching and Streaming Entropy via Approximation Theory PowerPoint PPT Presentation

Sketching and Streaming Entropy via Approximation Theory - Interpolate degree-k polynomial q(zj) = S1 zj. Output q(0) Multiplicative ... For what other problems can we use this 'generalize-then-interpolate' strategy? ...

Interpolate degree-k polynomial q(zj) = S1 zj. Output q(0) Multiplicative ... For what other problems can we use this 'generalize-then-interpolate' strategy? ...

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Network Anomaly Detection PowerPoint PPT Presentation

Network Anomaly Detection - Anomalies can often indicate network problems. DDoS, worms, flash crowds, outages, ... Tomography. Infer volume anomalies from link traffic measurements. Early Inverse ...

Anomalies can often indicate network problems. DDoS, worms, flash crowds, outages, ... Tomography. Infer volume anomalies from link traffic measurements. Early Inverse ...

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Enterprise Network Troubleshooting PowerPoint PPT Presentation

Enterprise Network Troubleshooting - Three Disjoint Views of the Network. Policy: The operator's 'wish list' ... 'WorldCom Inc...suffered a widespread outage on its Internet backbone that ...

Three Disjoint Views of the Network. Policy: The operator's 'wish list' ... 'WorldCom Inc...suffered a widespread outage on its Internet backbone that ...

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Is Statistical Machine Learning Safe in an Adversarial Environment PowerPoint PPT Presentation

Is Statistical Machine Learning Safe in an Adversarial Environment - 1. Is Statistical Machine Learning Safe in an Adversarial Environment. Blaine Nelson, RAD Lab ... Blaine Nelson Marco Barreno Fuching Jack Chi. Ling Huang ...

1. Is Statistical Machine Learning Safe in an Adversarial Environment. Blaine Nelson, RAD Lab ... Blaine Nelson Marco Barreno Fuching Jack Chi. Ling Huang ...

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Network Tomography and Anomaly Detection PowerPoint PPT Presentation

Network Tomography and Anomaly Detection - (opening it up can. disturb the system) too complex to measure everywhere, all the time ... Convergence analysis of [Crisan, Doucet 01; Le Gland, Oudjane 02] applies. ...

(opening it up can. disturb the system) too complex to measure everywhere, all the time ... Convergence analysis of [Crisan, Doucet 01; Le Gland, Oudjane 02] applies. ...

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Diagnosing Network Disruptions with Networkwide Analysis PowerPoint PPT Presentation

Diagnosing Network Disruptions with Networkwide Analysis - 'Ground truth' Time period: January 1, 2006 to June 30, 2006. Seattle. 6,766,986. Sunnyvale ... Destination Next-hop AS Path. 130.207.0.0/16. R1. 1..dest. R1 ...

'Ground truth' Time period: January 1, 2006 to June 30, 2006. Seattle. 6,766,986. Sunnyvale ... Destination Next-hop AS Path. 130.207.0.0/16. R1. 1..dest. R1 ...

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Sensitivity of PCA for Traffic Anomaly Detection - PCA (subspace method) in one . Challenges with current PCA methodology ... Cattell's Scree Test. Humphrey-Ilgen. Kaiser's Criterion. None are reliable. 11 ...

PCA (subspace method) in one . Challenges with current PCA methodology ... Cattell's Scree Test. Humphrey-Ilgen. Kaiser's Criterion. None are reliable. 11 ...

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Sensitivity of PCA for Traffic Anomaly Detection - Each principal axis in the direction of maximum (remaining) energy ... Cattell's Scree Test - Humphrey-Ilgen - Kaiser's Criterion. None are reliable. 17 ...

Each principal axis in the direction of maximum (remaining) energy ... Cattell's Scree Test - Humphrey-Ilgen - Kaiser's Criterion. None are reliable. 17 ...

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appscale: open-source platform-level cloud computing PowerPoint PPT Presentation

appscale: open-source platform-level cloud computing - appscale: open-source platform-level cloud computing Chandra Krintz Computer Science Dept. Univ. of California, Santa Barbara OpenFabrics Alliance, Sonoma Workshop

appscale: open-source platform-level cloud computing Chandra Krintz Computer Science Dept. Univ. of California, Santa Barbara OpenFabrics Alliance, Sonoma Workshop

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Traceroute-like exploration of unknown networks: a statistical analysis A. Barrat, LPT, Universit PowerPoint PPT Presentation

Traceroute-like exploration of unknown networks: a statistical analysis A. Barrat, LPT, Universit - A. Barrat, LPT, Universit Paris-Sud, France. I. Alvarez ... Apparent complexity of Internet's structure. Problem of sampling biases. Model for traceroute ...

A. Barrat, LPT, Universit Paris-Sud, France. I. Alvarez ... Apparent complexity of Internet's structure. Problem of sampling biases. Model for traceroute ...

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Data%20Mining%20using%20Fractals%20and%20Power%20laws PowerPoint PPT Presentation

Data%20Mining%20using%20Fractals%20and%20Power%20laws - cars. UNC, 2005. C. Faloutsos. 7. School of Computer Science. Carnegie Mellon ... (and std - infinity (!)) degree. count. avg: 3.3. UNC, 2005. C. Faloutsos. 39 ...

cars. UNC, 2005. C. Faloutsos. 7. School of Computer Science. Carnegie Mellon ... (and std - infinity (!)) degree. count. avg: 3.3. UNC, 2005. C. Faloutsos. 39 ...

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Graphs%20over%20Time%20Densification%20Laws,%20Shrinking%20Diameters%20and%20Possible%20Explanations PowerPoint PPT Presentation

Graphs%20over%20Time%20Densification%20Laws,%20Shrinking%20Diameters%20and%20Possible%20Explanations - 1. Graphs over Time Densification Laws, Shrinking. Diameters and ... Graph models: Preferential attachment. Preferential attachment [Albert & Barabasi, 99] ...

1. Graphs over Time Densification Laws, Shrinking. Diameters and ... Graph models: Preferential attachment. Preferential attachment [Albert & Barabasi, 99] ...

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Data Mining using Fractals and Power laws PowerPoint PPT Presentation

Data Mining using Fractals and Power laws - Boston U., 2005. C. Faloutsos. 1. School of Computer Science. Carnegie Mellon ... Boston U., 2005. C. Faloutsos. 2. School of Computer Science. Carnegie Mellon ...

Boston U., 2005. C. Faloutsos. 1. School of Computer Science. Carnegie Mellon ... Boston U., 2005. C. Faloutsos. 2. School of Computer Science. Carnegie Mellon ...

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Surviving Large Scale Internet Outages PowerPoint PPT Presentation

Surviving Large Scale Internet Outages - Title: PowerPoint Presentation Last modified by: sysadm Created Date: 1/1/1601 12:00:00 AM Document presentation format: On-screen Show Other titles

Title: PowerPoint Presentation Last modified by: sysadm Created Date: 1/1/1601 12:00:00 AM Document presentation format: On-screen Show Other titles

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Diagnosing NetworkWide Traffic Anomalies PowerPoint PPT Presentation

Diagnosing NetworkWide Traffic Anomalies - An Illustration. Detect. the time of the anomaly. Identify. the source ... A Geometric Illustration. In general, anomalous traffic results in a large value of ...

An Illustration. Detect. the time of the anomaly. Identify. the source ... A Geometric Illustration. In general, anomalous traffic results in a large value of ...

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Tips on working with your advisor or, managing your manager PowerPoint PPT Presentation

Tips on working with your advisor or, managing your manager - Window-shopping for a bit not a bad idea. But, beware the 'many masters and no mentor' pitfall ... Remember the PhD is your gift to yourself. Sorry, I don't ...

Window-shopping for a bit not a bad idea. But, beware the 'many masters and no mentor' pitfall ... Remember the PhD is your gift to yourself. Sorry, I don't ...

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Diagnosing Anomalies with NetworkWide Analysis PowerPoint PPT Presentation

Diagnosing Anomalies with NetworkWide Analysis - Increasing in sophistication: worm-compromised. hosts and bot-nets are massively distributed ... 1/1000 sampling, 10 min bins. Sprint European commercial network ...

Increasing in sophistication: worm-compromised. hosts and bot-nets are massively distributed ... 1/1000 sampling, 10 min bins. Sprint European commercial network ...

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Graphs over Time Densification Laws, Shrinking Diameters and Possible Explanations PowerPoint PPT Presentation

Graphs over Time Densification Laws, Shrinking Diameters and Possible Explanations - Graphs over Time Densification Laws, Shrinking Diameters and Possible Explanations Jurij Leskovec, CMU Jon Kleinberg, Cornell Christos Faloutsos, CMU

Graphs over Time Densification Laws, Shrinking Diameters and Possible Explanations Jurij Leskovec, CMU Jon Kleinberg, Cornell Christos Faloutsos, CMU

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Surviving Large Scale Internet Failures PowerPoint PPT Presentation

Surviving Large Scale Internet Failures - Malicious route advertisements via worms. 8/29/09 ... Slammer Worm (Jan 2003) Scanner worm started w/ buffer overflow of MS SQL. ...

Malicious route advertisements via worms. 8/29/09 ... Slammer Worm (Jan 2003) Scanner worm started w/ buffer overflow of MS SQL. ...

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Structural Analysis of Network Traffic Flows PowerPoint PPT Presentation

Structural Analysis of Network Traffic Flows - How to extract meaning from this high dimensional structure in a systematic fashion? ... Can we get a high-level understanding of a set of OD flows in terms of ...

How to extract meaning from this high dimensional structure in a systematic fashion? ... Can we get a high-level understanding of a set of OD flows in terms of ...

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Dimensionality Reduction in Sensor Networks PowerPoint PPT Presentation

Dimensionality Reduction in Sensor Networks - [3] Misha Belkin and Partha Niyogi, 'Laplacian eigenmaps for dimensionality ... Application: Wireless Motion Detection Sensor Net ...

[3] Misha Belkin and Partha Niyogi, 'Laplacian eigenmaps for dimensionality ... Application: Wireless Motion Detection Sensor Net ...

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Mining Anomalies in NetworkWide Flow Data PowerPoint PPT Presentation

Mining Anomalies in NetworkWide Flow Data - Network-Wide data we use: Traffic matrix views for Abilene and G ant at 10 min bins ... Worm. Point-Multipoint. 10. Automatically Classifying Anomalies [LCD:SIGCOMM05] ...

Network-Wide data we use: Traffic matrix views for Abilene and G ant at 10 min bins ... Worm. Point-Multipoint. 10. Automatically Classifying Anomalies [LCD:SIGCOMM05] ...

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Detecting Distributed Attacks Using NetworkWide Flow Analysis PowerPoint PPT Presentation

Detecting Distributed Attacks Using NetworkWide Flow Analysis - to atlanta. to LA. from nyc. 8 ... separate normal & anomalous network-wide traffic ... Then, decompose traffic in all OD flows by projecting onto the two ...

to atlanta. to LA. from nyc. 8 ... separate normal & anomalous network-wide traffic ... Then, decompose traffic in all OD flows by projecting onto the two ...

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Data Mining using Fractals and Power laws - self-managing storage. infrastructure. a storage brick (0.5 5 TB) ~1 PB ' ... Self-* Storage (Ganger ) C. Faloutsos. 11. School of Computer Science. Carnegie Mellon ...

self-managing storage. infrastructure. a storage brick (0.5 5 TB) ~1 PB ' ... Self-* Storage (Ganger ) C. Faloutsos. 11. School of Computer Science. Carnegie Mellon ...

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Sampling Biases in IP Topology Measurements PowerPoint PPT Presentation

Sampling Biases in IP Topology Measurements - Pick k unique source nodes, uniformly at random ... When traces are run from few sources to large destinations, some portions of ...

Pick k unique source nodes, uniformly at random ... When traces are run from few sources to large destinations, some portions of ...

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Inference and Signal Processing for Networks PowerPoint PPT Presentation

Inference and Signal Processing for Networks - University of Michigan - Ann Arbor. http://www.eecs.umich.edu/~hero. Outline ... day. day. temperature. WISP: Nov. 04. Key problem: dimension estimation ...

University of Michigan - Ann Arbor. http://www.eecs.umich.edu/~hero. Outline ... day. day. temperature. WISP: Nov. 04. Key problem: dimension estimation ...

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Structural Analysis of Network Traffic Flows - with Dina Papagiannaki, Mark Crovella, Christophe Diot, Eric Kolaczyk, and Nina Taft ... How does traffic move throughout the network? ...

with Dina Papagiannaki, Mark Crovella, Christophe Diot, Eric Kolaczyk, and Nina Taft ... How does traffic move throughout the network? ...

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Anomaly and sequential detection with time series data PowerPoint PPT Presentation

Anomaly and sequential detection with time series data - Anomaly and sequential detection with time series data. XuanLong Nguyen ... Time series is a sequence of data points, measured typically at successive times, ...

Anomaly and sequential detection with time series data. XuanLong Nguyen ... Time series is a sequence of data points, measured typically at successive times, ...

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Internet Measurements PowerPoint PPT Presentation

Internet Measurements - Need for Internet measurements arises due to commercial, social, and technical issues ... Measurement for network operations. Detecting and diagnosing problems ...

Need for Internet measurements arises due to commercial, social, and technical issues ... Measurement for network operations. Detecting and diagnosing problems ...

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Hot Topics in Internet Measurement Research PowerPoint PPT Presentation

Hot Topics in Internet Measurement Research - Two measurement sessions in Sigcomm03, Sigcomm04. Even in SOSP, OSDI... Everybody hates TCP. Available bandwidth tools. Again, too many similar tools ...

Two measurement sessions in Sigcomm03, Sigcomm04. Even in SOSP, OSDI... Everybody hates TCP. Available bandwidth tools. Again, too many similar tools ...

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A History of and New Directions for Power Law Research PowerPoint PPT Presentation

A History of and New Directions for Power Law Research - Title: A Brief History of Lognormal and Power Law Distributions and an Application to File Size Distributions Author: michaelm Last modified by

Title: A Brief History of Lognormal and Power Law Distributions and an Application to File Size Distributions Author: michaelm Last modified by

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$Data Mining using Fractals (fractals for fun and profit) PowerPoint PPT Presentation$

Data Mining using Fractals (fractals for fun and profit) - Data Mining using Fractals (fractals for fun and profit) ... New tools: power laws, self-similarity and fractals' work, where traditional assumptions fail ...

Data Mining using Fractals (fractals for fun and profit) ... New tools: power laws, self-similarity and fractals' work, where traditional assumptions fail ...

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Streaming in a Connected World: Querying and Tracking Distributed Data Streams PowerPoint PPT Presentation

Streaming in a Connected World: Querying and Tracking Distributed Data Streams - Streaming in a Connected World: Querying and Tracking Distributed Data Streams Minos Garofalakis Intel Research Berkeley minos.garofalakis@intel.com

Streaming in a Connected World: Querying and Tracking Distributed Data Streams Minos Garofalakis Intel Research Berkeley minos.garofalakis@intel.com

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Streaming in a Connected World: Querying and Tracking Distributed Data Streams - Streaming in a Connected World: Querying and Tracking Distributed Data Streams Minos Garofalakis Intel Research Berkeley minos.garofalakis@intel.com

Streaming in a Connected World: Querying and Tracking Distributed Data Streams Minos Garofalakis Intel Research Berkeley minos.garofalakis@intel.com

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Distributed Detection of NetworkWide Traffic Anomalies - Distributed Detection of NetworkWide Traffic Anomalies

Distributed Detection of NetworkWide Traffic Anomalies

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Toward Validation and Control of Network Models PowerPoint PPT Presentation

Toward Validation and Control of Network Models - My (biased) opinion: The bar should now be very high for observation/interpretation. ... My (biased) opinion: this is one useful approach; but not the end of ...

My (biased) opinion: The bar should now be very high for observation/interpretation. ... My (biased) opinion: this is one useful approach; but not the end of ...

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A Brief History of Lognormal and Power Law Distributions and an Application to File Size Distributions PowerPoint PPT Presentation

A Brief History of Lognormal and Power Law Distributions and an Application to File Size Distributions - A Brief History of Lognormal and Power Law Distributions and an Application to File Size Distributions Michael Mitzenmacher Harvard University Motivation: General ...

A Brief History of Lognormal and Power Law Distributions and an Application to File Size Distributions Michael Mitzenmacher Harvard University Motivation: General ...

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New Directions for Power Law Research PowerPoint PPT Presentation

New Directions for Power Law Research - Power laws (and/or scale-free networks) are now everywhere. ... In computer science: file sizes, download times, Internet topology, Web graph, etc. ...

Power laws (and/or scale-free networks) are now everywhere. ... In computer science: file sizes, download times, Internet topology, Web graph, etc. ...

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Demystifying the router-level topology PowerPoint PPT Presentation

Demystifying the router-level topology - Measurement tools are primitive. Technical challenges are significant. ... Continue to conduct measurements, build more informed models, and validate them. ...

Measurement tools are primitive. Technical challenges are significant. ... Continue to conduct measurements, build more informed models, and validate them. ...

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A Brief History of Lognormal and Power Law Distributions and an Application to File Size Distributions - Recent work on file size distributions ... Start with an organism of size X0. ... At each time interval, suppose size either increases by a factor of 2 with ...

Recent work on file size distributions ... Start with an organism of size X0. ... At each time interval, suppose size either increases by a factor of 2 with ...

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Anomaly detection and sequential statistics in time series - [Scott, 2003] Potentially. fradulent ... Technical report, Univ of Wisconsin, Madison. Scott, S., A Bayesian paradigm for designing intrusion detection systems. ...

[Scott, 2003] Potentially. fradulent ... Technical report, Univ of Wisconsin, Madison. Scott, S., A Bayesian paradigm for designing intrusion detection systems. ...

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Detecting Distributed Attacks Using NetworkWide Flow Data PowerPoint PPT Presentation

Detecting Distributed Attacks Using NetworkWide Flow Data - to atlanta. to LA. from nyc. 8. Data Collected. Collect sampled NetFlow data from all routers of: ... An approach to separate normal & anomalous network-wide traffic ...

to atlanta. to LA. from nyc. 8. Data Collected. Collect sampled NetFlow data from all routers of: ... An approach to separate normal & anomalous network-wide traffic ...

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NetworkWide Traffic Analysis: Methods and Applications PowerPoint PPT Presentation

NetworkWide Traffic Analysis: Methods and Applications - to seattle. to atlanta. to LA. from nyc. 10. Why Origin-Destination Flows? ... common (user-driven) daily and weekly cycles: 17. Outline for rest of talk ...

to seattle. to atlanta. to LA. from nyc. 10. Why Origin-Destination Flows? ... common (user-driven) daily and weekly cycles: 17. Outline for rest of talk ...

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Surviving Large Scale Internet Outages - Can lead to large scale 'failures' Inability of access or diversion to malicious sites. ... Aggregation of large un-owned IP blocks. Incompatible policies among AS'es ...

Can lead to large scale 'failures' Inability of access or diversion to malicious sites. ... Aggregation of large un-owned IP blocks. Incompatible policies among AS'es ...

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tude des routes sur Internet PowerPoint PPT Presentation

tude des routes sur Internet - Dans quelle proportion les routes ne sont pas des plus courts chemins? ... R.Siamwalla, R.Sharma and S.Keshav. Discovering Internet Topology. Q. Chen and H. Chang ...

Dans quelle proportion les routes ne sont pas des plus courts chemins? ... R.Siamwalla, R.Sharma and S.Keshav. Discovering Internet Topology. Q. Chen and H. Chang ...

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D-Trigger: A General Framework for Efficient Online Detection PowerPoint PPT Presentation

D-Trigger: A General Framework for Efficient Online Detection - ... platform to support a wide-range of applications. General ... wide Anomalies ... System implementation and wide-area deployment. Novel network ...

... platform to support a wide-range of applications. General ... wide Anomalies ... System implementation and wide-area deployment. Novel network ...

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Measurement: Techniques, Strategies, and Pitfalls PowerPoint PPT Presentation

Measurement: Techniques, Strategies, and Pitfalls - Process of collecting data that measure certain phenomena about the network. Should be a science ... Packet captures (e.g., tcpdump, DAG) Flow records (e.g., netflow) ...

Process of collecting data that measure certain phenomena about the network. Should be a science ... Packet captures (e.g., tcpdump, DAG) Flow records (e.g., netflow) ...

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Lakhina PowerPoint PPT Presentations