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Traffic Anomaly Detection and Diagnosis on the Network Flow Level

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Honeybee swarming behavior using diffusion adaptation

Ali H. Sayed

Honeybees swarm when they move to a new site for their hive. During the process of swarming, their behavior can be analyzed by classifying them as informed scouts or uninformed bees, where the scouts have information about the destination while the uninfor ...

IEEE2011

Heterogeneity In Car-Following Behavior: Theory And Empirics

The aim of this paper is to gain insights into the level of heterogeneity in car-following behavior in real traffic. We use a large sample of trajectory observations collected by means of a helicopter to identify differences between the car-following behav ...

Elsevier2011

Mitigating network congestion

Carolina Osorio Pizano

Congestion is a phenomenon that arises in a variety of contexts. The most familiar representation is urban traffic congestion. Nonetheless, phenomenons such as prison cell congestion, hospital bed blocking or, at a cellular scale, ribosome congestion, also ...

EPFL2010

Impact of variations in travel demand and network supply factors for evacuation studies

Traffic simulation models are frequently used to support decisions when planning an evacuation. These models typically focus on traffic dynamics and the effect of traffic control measures in order to locate possible bottlenecks and predict evacuation times ...

2010

Relational network-service clustering analysis with set evidences

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Network administrators are faced with a large amount of network data that they need to sift through to analyze user behaviors and detect anomalies. Through a network monitoring tool, we obtained TCP and UDP connection records together with additional infor ...

2010

Tracking behavior of mobile adaptive networks

Ali H. Sayed

Adaptive networks consist of a collection of nodes with learning abilities that interact with each other locally in order to solve distributed processing and distributed inference problems in real-time. Various algorithms and performance analyses have been ...

IEEE2010

Update of the Swiss source model for road traffic noise

Hervé Lissek, François Aballéa, Pierre-Jean René

In Switzerland, the calculation method of road traffic noise is specified in the Ordonnance sur la protection contre le bruit (OPB) (Noise Protection Ordonnance (NPO)). This method is mainly based on observations that were realized in the 80s, and that are ...

2009

A methodology (CUPRITE) for urban network travel time estimation by integrating multisource data

Ashish Bhaskar

Travel time is an important network performance measure and it quantifies congestion in a manner easily understood by all transport users. In urban networks, travel time estimation is challenging due to number of reasons such as, fluctuations in traffic fl ...

EPFL2009

Malicious Traffic Detection in Local Networks with Snort

Loïc Etienne

Snort is an open source Network Intrusion Detection System combining the benefits of signature, protocol and anomaly based inspection and is considered to be the most widely de- ployed IDS/IPS technology worldwide. However, Snort's deployment in a large co ...

2009

A Two-Layered Anomaly Detection Technique Based on Multi-modal Flow Behavior Models

Jean-Yves Le Boudec

We present a novel technique to detect traffic anomalies based on network flow behavior in different traffic features. Based on the observation that a network has multiple behavior modes, we estimate the modes in each feature component and extract their mo ...

Springer Verlag2008