My research in computer architecture area mainly focuses on supporting Quality of Service in Chip MultiProcessors and analytically modeling the performance of cache/memory systems. The scaling, power, thermal and reliability constraints of the uniprocessors have turned the focus of the computer industry towards chip muti-processor (CMP) systems in many computing domains. Within a decade, we can...

Cloud computing has become a buzzword that nearly everyone has heard but only few can truly understand its correct meaning. Today, cloud has taken over the IT landscape. Cloud computing refers to menu of hosting services usually provided over the internet on a usage or metered basis, while at the same time leveraging infrastructure shared by multiple users. Cloud itself is maintained by cloud s...

In this paper, an efficient local appearance feature extraction method based the multi-resolution Curvelet transform is proposed in order to further enhance the performance of the well known Linear Discriminant Analysis(LDA) method when applied to face recognition. Each face is described by a subset of band filtered images containing block-based Curvelet coefficients. These coefficients charact...

Rising complexity within muti-tier computing architectures remains an open problem. As complexity increases so do the costs associated with operating and maintaining systems within these environments. One approach for addressing these problems is to build self-healing systems (i.e., frameworks) that can autonomously detect and recover from faulty states. Self-healing systems often combine machi...

Robot-assisted self-rehabilitation for patients with stroke is significant for their motor recovery. Meanwhile, the surface EMG can reflect human neuromuscular activity and can be used for rehabilitation robot control. In this paper, we propose a Two-Step SVM classification method based on One-versus-One SVM muti-class classification method in order to improve the time efficiency of upper limb ...

This paper describes a new database, called muti-level speech database, for spontaneous speech processing. We designed the database to cover textual and acoustic variations from declarative speech to spontaneous speech. The database is composed of 5 categories which are, in the order of decreasing spontaneity, spontaneous speech, interview, simulated interview, declarative speech with context, ...

In emerging electric power systems, increased transactions often lead to the situations where the system no longer remains in secure operating region. The flexible Ac transmission system (FACTS) controllers can play an important role in the power system security enhancement. However, due to high capital investment, it is necessary to locate these controllers optimally in the power system. FACTS...

This paper describes a method to measure and compensate a 4 axes ultra-precision machine tool that generates micro patterns on the large surfaces. The grooving machine is usually used for making a micro mold for many electrical parts such as a light guide plate for LCD and fuel cells. The ultra precision machine tool has three linear axes and one rotational table. Shaping is usually used to gen...

Over 150 years ago, Cohnheim and Durante formalized the concept that cancers might arise from a small subset of cells with stem cell properties 1-3, and in 1961, Till and McCulloch demonstrated for the first time that the existence of hematopoietic stem cells (HSC) in the bone marrow, which was postulated that stem-like cells might be the origin of cancer 4. However, only recently did an increa...

The main difficulty in the binary object classification field lays in dealing with a high variability of symbol appearance. Rotation, partial occlusions, elastic deformations, or intra-class and inter-class variabilities are just a few problems. In this paper, we introduce a novel object description for this type of symbols. The shape of the object is aligned based on principal components to ma...