Firewalls use packet filtering to either accept or deny packets on the basis of a set of predefined rules called filters. The firewall forms the initial layer of defense and protects the network from unauthorized access. However, maintaining firewall policies is always an error prone task, because the policies are highly complex. Conflict is a misconfiguration that occurs when a packet matches ...

In this paper, an innovative technique called Relational Time-Space Data Structures is presented for Conflict Detection (CD) between 4D trajectories, improving the performance of the widely-used pairwise CD algorithms and also overcoming some of the shortages of previous Spatial Data Structures CD algorithm. WP-E project STREAM aims to coordinate the whole European ATM at strategic and tactical...

A number of methods have been proposed to automate air traffic conflict detection and resolution (CD&R), but there has been little cohesive discussion or comparative evaluation of approaches. This paper presents a survey of 68 recent CD&R modeling methods, several of which are currently in use or under operational evaluation. A framework that articulates the basic functions of CD&R is used to c...

This research studies two related functions over e-Work networks, prognostics with respect to conflict and error (CE) prediction, and detection with respect to CE diagnostics. Traditional prognostics and diagnostics approaches face two challenges: (1) How to model a system for effective conflict and error prediction and detection (CEPD); (2) Centralized CEPD algorithms are difficult to develop ...

This document is disseminated under the sponsorship of the Department of Transportation in the interest of information exchange. The United States Government assumes no liability for its contents or use thereof. The effects of sensor accuracy; data rate, and message delivery de?ay upon automated conflict detection,and resolution processing is analyzed and particular " considerationsfor 0A8S/IPC...

This paper evaluates an inductive learning approach classification technique for vehicle detection and enumeration on very high resolution imagery. It tests pre-processing procedures applied to different images in with different atmospheric conditions and automatic detection algorithms for detection and enumeration. This work contributes to the longer term objective that is beyond the scope of ...

This paper evaluates an inductive learning approach classification technique for vehicle detection and enumeration on very high resolution imagery. It tests pre-processing procedures applied to different images with different atmospheric conditions and automatic detection algorithms for detection and enumeration. This work contributes to the longer term objective that is beyond the scope of thi...

Though there is a considerable agreement amongst past studies about the great variability in conflict judgments by Air Traffic Controllers (ATCos), certain behaviors observable in control rooms speak in favor of the existence of a common core they would that controllers share regarding conflict risk perception. The study presented in this paper began with the construction (from real recordings)...

Prior neuroimaging evidence indicates that decision conflict activates medial and lateral prefrontal and parietal cortices. Theoretical accounts of cognitive control highlight anterior cingulate cortex (ACC) as a central node in this network. However, a better understanding of the relative primacy and functional contributions of these areas to decision conflict requires insight into the neural ...

The human brain protects the processing of task-relevant stimuli from interference ("conflict") by task-irrelevant stimuli via attentional biasing mechanisms. The lateral prefrontal cortex has been implicated in resolving conflict between competing stimuli by selectively enhancing task-relevant stimulus representations in sensory cortices. Conversely, recent data suggest that conflict from emot...