If data traffic were Poisson, increases in the amount of traffic aggregated on a network would rapidly decrease the relative size of bursts. The discovery of pervasive long-range dependence demonstrates that real network traffic is burstier than any possible Poisson model. We present evidence that, despite being non-Poisson, aggregating Web traffic causes it to smooth out as rapidly as Poisson ...

Analyzing motion patterns in traffic videos can be exploited directly to generate high-level descriptions of the video contents. Such descriptions may further be employed in different traffic applications such as traffic phase detection and abnormal event detection. One of the most recent and successful unsupervised methods for complex traffic scene analysis is based on topic models. In this pa...

In this paper, we investigate the problem of efficiently provisioning connections of different bandwidth granularities in a heterogeneous WDM mesh network through dynamic traffic-grooming schemes under traffic-engineering (TE) principles. Due to the huge amount of traffic a WDM backbone network can support and the large geographic area it can cover, constructing and upgrading such an optical WD...

background and aims: traffic crashes are multi-factorial consequences caused by human factors, technical issues and environmental conditions. the present study aimed to determine epidemiology of urban traffic injuries in iran and role of some human risk factors in occurrence of such outcomes in 2010. materials and methods: through a descriptive cross-sectional study, the records of 515205 injur...

objectives: to investigate the differences in death after receiving emergency services in traffic accidents between urban and rural regions, and decompose factors of the gap in langerood, northern iran. methods: this cross-sectional study was conducted in langrood, northern iran during a 1-year period from 2013 to 2014. the hospital data of traffic crashes were used. data contained those patien...

Aggregates of real-time traffic may experience changes in their statistical characteristics often manifesting non stationary behavior. In multi protocol label switching (MPLS) networks this type of the traffic is assigned constant amount of resources. This may result in ineffective usage of resources when the load is below than expected or inappropriate performance when the load is higher. In t...

Anonymous communications provides an important privacy service by keeping passive eavesdroppers from linking communicating parties. However, an attacker can use long-term statistical analysis of traffic sent to and from such a system to link senders with their receivers. Cover traffic is an effective, but somewhat limited, counter strategy against this attack. Earlier work in this area proposes...

Complex traffic situations and high driving workload are the leading contributing factors to traffic crashes. There is a strong correlation between driving performance and driving workload, such as visual workload from traffic signs on highway off-ramps. This study aimed to evaluate traffic safety by analyzing drivers' behavior and performance under the cognitive workload in complex environment...

A key question when integrating voice traffic into a corporate data network is cost versus benefit. Will an Integrated Services network save WAN link capacity which determines network costs? Does the complexity of additional explicit quality of service enablers like Differentiated Services (DiffServ) pay off its capacity savings? In a case study we have simulated the busy hour of a bank’s Intra...

Traffic jams are a severe problem affecting cities around the world, and they are only getting worse as the population and number of vehicles continues to increase significantly while the area available for building roads does not. Annually, many citizens waste countless hours stuck in traffic, and the amount of time spent is expected to increase. One study calculated that in 75 different city ...