Anomaly detection remains a poorly understood area where visual inspection and manual analysis play a significant role in the effectiveness of the detection technique. We observe traffic anomalies in two adjacent networks, namely GEANT and Abilene, in order to determine what parameters impact the detectability and the characteristics of anomalies. We correlate three weeks of traffic and routing...

A new g-tracking method based on the Compton-scattering probability of photons in a spectrometer composed of segmented Ge detectors has been developed and evaluated with the GEANT 3 simulation code. The performance of this probabilistic method, in terms of photopeak detection efficiency and peak-to-total ratio calculated for a 4p array composed of planar detectors, is comparable with the ones o...

A multi-detector array has been constructed for the simultaneous measurement of energyand angular correlation of electron-positron pairs produced in internal pair conversion (IPC) of nuclear transitions up to 18 MeV. The response functions of the individual detectors have been measured with mono-energetic beams of electrons. Experimental results obtained with 1.6 MeV protons on targets containi...

Internet topology mapping studies utilize large scale topology maps to analyze various characteristics of the Internet. IP alias resolution, the task of mapping IP addresses to their corresponding routers, is an important task in building such topology maps. In this paper, we present a new probe-based IP alias resolution tool called palmtree. Palmtree can be used to complement the existing sche...

امروزه به­ دلیل شتاب روزافزون روند جهانی‌سازی در سراسر دنیا زنجیره تأمین ابعاد جدید به خود گرفته و بسیار پیچیده‌تر از قبل شده است. هوشمند باید طریق فناوری‌های مختلف به­خصوص اینترنت بتواند امکان تبادل اطلاعات سریع کل زنجیره‌ را فراهم کند. پژوهش حاضر یک مطالعه کیفی به­منظور ارائه مدل برای خدمات صندوق کارآفرینی امید صورت این روش داده‌بنیاد اشتراوس کوربین (1998)، استفاده تا اشباع نظری مصاحبه‌شوندگا...