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Power consumption is one of the key optimization objectives for modern integrated circuit designs. More than 40% of the total power consumption is contributed by clock trees due to their high frequency of switching and high capacitance. In the traditional physical design flow, placement is done before clock tree synthesis (CTS). CTS constructs a tree to connect the clock source with all the registers...
Distributed assembly permutation flowshop scheduling problem (DAPFSP) has important applications in modern assembly systems. In this paper, we address the DAPFSP with total flowtime minimization. According to the problem knowledge, we present a two-level representation which consists of product permutation and job sequences. A two-stage discrete invasive weed optimization (DIWO) algorithm is proposed...
Pin accessibility influences the routability of a design at the stage of block/chip assembling. The estimation model for pin accessibility in previous researches counts the total number of intersections between each pin and M2 routing tracks. It does not consider the variation of pin accessibility as the spacing between a pin and its neighboring pins and metal wires changes. Besides, it cannot properly...
Background modelling and subtraction is an essential component in motion analysis with wide range of applications in computer vision, whereas the task becomes more challenging in context of complex scenarios such as dynamic backgrounds. In this paper, we address the problem of modelling dynamic backgrounds in online tensor leaning framework. We use Tucker decomposition to model thespatio-temporal...
This paper proposes an effective global Fruit Fly Optimization (GFFO) for the hybrid flowshop (HFS) problem with makespan criterion. To improve FFO's exploration ability, a global osphresis foraging and a global vision foraging is introduced. We calibrate the parameters and operators for the presented GFFO algorithm by means of a design of experiments approach. Comparative evaluations show that the...
As the extension of matrices, tensors are very powerful tools to model the heterogeneous multidimensional arrays in applications. Similar to bi-clustering in matrices, co-clustering can simultaneously extract the coherent patterns along all modes of tensors. In recent years, various techniques have been developed to identify co-clusters in tensor. In this paper, a novel co-clustering method based...
Particle impoverishment is inevitably induced because of the random particles prediction and resampling applied in particle filter, especially in SLAM problem with a large number of dimensions. To overcome these limitations, an improved FastSLAM system using artificial fish-swarm optimized distributed unscented particle filter (AFSO-DUPF) is developed in this paper. The main contribution of this paper...
Muscle fatigue is one of the main factors that influencing the sports performance and resulting in injuries. In this paper, the fatigue analysis for early warning system based on fuzzy algorithm is developed. The system does not need to construct complex mathematical functions, based on the participants' surface Electromyography (sEMG), heartbeat rate and exercise time after exercise to calculate...
Much attention has been focused on the applications of the passive multistatic radar due to its numerous advantages. A linear combination framework for target detection in the passive multistatic radar is proposed here to improve the detection performance. In our framework, the individual test statistics are computed through cross-correlation, then these test statistics from spatially separated receivers...
In view of the shortcomings of the artificial bee colony (ABC) algorithm, such as slow convergence speed, low convergence accuracy and easy to fall into local optimum, a balanced colony algorithm (NABC) based on multiple selections strategy is proposed. Firstly, the fitness and the current optimal honey source position are considered fully to improve the search strategy in onlooker searching stage,...
With the wide application of cloud computing, cloud computing security issues are now becoming more and more popular. By analyzing the security of information resources sharing in cloud computing environment, this paper discusses the technical, political and social issues of security protection.
The detection of protein complexes from protein-protein interaction (PPI) networks is an important step toward understanding the functional organization within cells. A great number of graph clustering algorithms have been proposed to undertake this task. Since PPI data collected by high-throughput technologies is quite noisy, simply applying graph clustering algorithms on PPI data is generally not...
With the rapid development of biclustering techniques in machine learning and data mining, such techniques have been successfully applied to practical problems such as gene expression analysis, text mining, collaborative filtering and market analysis. In this work, biclustering techniques were applied to segmentation of gray-scale human face images. A biclustering-based framework (BISA), which iteratively...
Over the last decade, anti-cancer therapies (chemotherapy and radiation, hormonal, neoadjuvant, and combinatorial therapies) have prolonged the lives of cancer patients. However, present cancer therapies fail in a high percentage of cases due to an incomplete elimination of the tumor cells, resulting in relapse and metastasis of the tumor. The vast majority of cancer-related deaths are due to metastatic...
With increasing miniaturization of electronic devices and systems, the dimension of solder joints and pitches has been continuously scaling down, while the current density carried by solder joints increasing significantly, consequently a critical issue, electromigration (EM), has become a key reliability concern. The EM behavior in the joint is mainly dependent on the magnitude and distribution of...
The distributed SLAM system is a value method for mobile robot navigation. But particle impoverishment is inevitably because of the random particles prediction and resampling applied in generic particle filter, especially in SLAM problem that involve a large number of dimensions. In this paper, the distributed particle swarm optimized particle filter was developed to improve the SLAM system. The Quantum-behaved...
It is always a challenge to recognize human face from distorted images. This paper examines classification capability of Gabor phase representations on human face recognition for distorted images and the findings are compared with the results from principle component analysis.
With the rapid development of machine-learning and data-mining techniques, biclustering (co-clustering) has become an important and widespread technique in multiple areas such as gene expression analysis, text mining and market segmentation. In this work, we proposed an efficient co-clustering method named SVD-based hybrid pattern search (SHPS). It is a score-function-based method, and specifically...
In this paper, singular value decomposition is applied to detect the co-clusters in mutant-atom matrix data of solid angle. A set of significant patterns are found in the given matrix data with coherent solid angle values on both mutants and atoms. These patterns could provide clues about the main mechanism associated with drug resistance. In one pattern, all the mutants have the same response level...
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