in this paper, we describe our implementation of an interior point algorithm for large scale systems. first we identify system with small and medium methods convex optimization, then we use interior point method for identification. finally we offer an interior point method that uses nonlinear cost function and see that we achieve a good trade-off between error and cpu time. actually, in this pa...

Direction-of-arrival (DOA) estimation algorithm for uniform planar arrays has been applied in many fields. The multiple signal classification (MUSIC) obvious advantage high-resolution source scenarios. However, the MUSIC high computational costs, therefore it is hard to be used real-time scenes. Many studies are dedicated accelerating by parallel hardware, especially Graphics Processing Units (...

Coherent-cache shared-memory architectures often give disappointing performance which can be alleviated by manual tuning. We describe a new trace analysis tool, clarissa, which helps diagnose problems and pinpoint their causes. Unusually, clarissa works by analysing potential contention, instead of measuring predicted contention by simulating a speciic memory system design. This is important be...

Digital Breast Tomosynthesis (DBT) is a technology that creates three dimensional (3D) images of breast tissue. Tomosynthesis mammography detects lesions that are not detectable with other imaging systems. If image reconstruction time is in the order of seconds, we can use Tomosynthesis systems to perform Tomosynthesis-guided Interventional procedures. This research has been designed to study u...