Learn More
Reliability wall is one of the most challenging problems for next generation High Performance Computing (HPC) systems. Traditional system design adopts extra fault tolerance mechanism. However, the cost of fault tolerance mechanism itself may incur huge cost, so as to decrease the utilization ratio of the HPC system. To address this problem, we present(More)
Multithreaded programs execute nondeterministically on conventional architectures and operating systems. This complicates many tasks, including debugging and testing. Deterministic multithreading (DMT) makes the output of a multithreaded program depend on its inputs only, which can totally solve the above problem. However, current DMT implementations suffer(More)
The feature of the peer-to-peer system such as user anonymity, open nature makes that some peers are not responsible for their distributing inauthentic information. An effective solution is that set up the trust model in the p2p system. This paper presents a novel global trust model based on confirmation theory. The reputation of peers is calculated by C-F(More)
Along with wide application of e-mail nowadays, many spam e-mails flood into people's email inboxes and bring catastrophe to their study and work. This paper presents a novel anti-spam e-mail filter based-LVQ network in terms of spam e-mails which are mainly made up of several kinds commercial or political spam emails at present. Our experiment has proved(More)
Spectrum sensing is a key technique in cognitive radio networks (CRNs), which enables cognitive radio nodes to detect the unused spectrum holes for dynamic spectrum access. In practice, only a small part of spectrum is occupied by the primary users. Too high sampling rate can cause immense computational costs and sensing problem. Based on sparse(More)
Cancer neovascularization plays a key role in the metastasis of larynx carcinoma. However, the molecular mechanism for the neovascularization control in larynx carcinoma is poorly understood. Since placental growth factor (PLGF) has been reported to be involved in pathological angiogenesis, and since matrix metalloproteinases (MMPs) are essential for(More)