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The increasing availability of large-scale vehicle traffic data provides us great opportunity to explore them for knowledge discovery in intelligent transportation systems. Many mechanisms have been proposed to discover all outliers in a road network lately due to an increasing capability to track moving vehicles. In this paper, we propose a new problem called the road segment-based outliers detection...
Intellectual Properties (IP), such as patents and trademarks, are one of the most critical assets in today's enterprises and research organizations. They represent the core innovation and differentiators of an organization. When leveraged effectively, they not only protect a business from its competition, but also generate significant opportunities in licensing, execution, long term research and innovation...
This paper presents an innovative methodology for accelerating scalar multiplication in an elliptic curve cryptosystem over prime fields. We improve the m-DBL operation formulae to achieve faster arithmetic, and then propose our new evaluation scheme that takes advantage of fast point operations, mainly m-DBL, and combine them with the Frac-wNAF form with the flexibility to utilize memory. Our scheme...
Nonnegative matrix factorization (NMF) is an unsupervised method whose aim is to find an approximate factorization Vn*m = Wn*r*Hr*m into non-negative matrices Wn*r and Hr*m. This paper presents an extension to NMF and discusses the development and the use of damped Newton based the non-negative matrix factorization called DNNMF with good convergence properties for wood image representation by adding...
Distributed systems, such as peer-to-peer systems, computing grids across multiple organizations, and compositional Web services require a rethinking of basic issues in their design and implementation, especially in access control mechanism. This paper establishes a model of access control in distributed systems named as policy domain access control model. We firstly give definitions of policy, credential...
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