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Frequent items mining is an important data mining task with many real-world applications. By considering different weights of the items, weighted frequent items mining can discover more important knowledge compared to traditional frequent patterns mining. In this paper, we presented a new algorithm called count-MH to discover weighted frequent items over data streams, the proposed method is based...
This paper proposes a method aiding in low clock skew applicable to the mainstream industry clock tree synthesis (CTS) design flow. The original clock root is partitioned into several pseudo clock sources at the gate level. The automatic place and route (APR) tool may synthesize the clock tree with better performance in clock skew because each pseudo clock source drives smaller number of fan out....
This paper extends the nonlinear ISS small-gain theorem to a large-scale time delay system composed of three or more subsystems. En route to proving this small-gain theorem for systems of differential equations with delays, a small-gain theorem for operators is examined. The result developed for operators allows applications to a wide class of systems, including state space systems with delays.
The general quaternion Mandelbrot sets (abbreviated as M sets) with the additive and multiplicative dynamic noise perturbations are constructed. The topology structures and the fission evolutions of the M sets are investigated, and the boundaries the stability regions are calculated. Plenty of experiments and analysis indicate that the additive dynamic noise makes M sets displace from the original...
Aiming at the limitation of traditional graph-theory clustering method in the process of image segmentation, a new segmentation approach is proposed, which uses fuzzy similarity relationship to weight the edges while a complete graph is constituted. And fuzzy maximum spanning tree is used to clustering. Thus the traditional graph-theory clustering method is improved as the fuzzy graph-theory clustering...
This paper proposes a ZSCTS methodology aiding in zero skew clock tree synthesis suitable to the mainstream industry clock tree synthesis (CTS) design flow. At the gate level, the original clock net is broken up into smaller partitions, and the clock buffers are inserted as pseudo clock sources to drive each portion. The automatic place and route (APR) tool may synthesize each clock subtree with better...
The present study established a method to determine 7 hydroxy metabolites of polychlorinated biphenyls (PCBs) in aquatic products.Target compunds were extracted by hexane/ethyl acetate (v/v,1:1). Sulfuric acid and silica column were used to remove the impurities with 50 ml of hexane/ethyl acetate (v/v,1:1) as eluet. Silylation derivatization was effective and stable to make hydroxylated polychlorinated...
Cell/B.E. multi-view system consists of multi-view capturing, view synthesis and 3D finger tracking. It's an on-line image-based multi-view broadcasting system. Input images are obtained by the multi-view capturing and the viewpoint is determined by the finger tracking. View synthesis is to render the desired viewpoint image. In order to build a system with high performance and scalability, IBM Cell/B...
We propose a morphological quantitative evaluation method for the aging analysis of the handback skin. First of all, the non-invasive method of digital imaging technology is adopted to get the handback skin morphological data. Then, based on the algorithms of gray-level co-occurrence matrix and displacement co-occurrence matrix, morphological features of the individual handback skins are measured...
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