As a family of dynamic description logics, DDL(X) is constructed by embracing actions into the description logic X, where X represents well-studied description logics ranging from the ALC to the SHOIQ. To efficiently ...
详细信息
作者：
Ya-Nan WangJian-Bo SuDepartment of Automation
Shanghai Jiaotong University Key Laboratory of System Control and Information Processing Ministry of Education of China 200240 China
Considering the face image is approximate symmetry, we proposed a measurement factor to quantify the symmetrical characteristic of face images. Firstly we transform the face image into even-odd face images using parit...
详细信息
Considering the face image is approximate symmetry, we proposed a measurement factor to quantify the symmetrical characteristic of face images. Firstly we transform the face image into even-odd face images using parity decomposition method. LBP features extracted in even images to construct training sets. Then we apply Adaboost training algorithm to structure a strong classifier. Experiment proved that this method can overcome environment disturbance, and effectively improve the recognition rate.
作者：
Y. ZhengS.Y. LiSchool of Electronic Information and Electrical Engineering
Shanghai Jiao Tong University Key Laboratory of Control of Power Transmission and Conversion Ministry of Education Road Shanghai 200240 China Department of Automation
Shanghai Jiao Tong University Key Laboratory of System Control and Information Processing Ministry of Education of China Shanghai 200240 China (Tel: 34204011 )
A stabilized Distributed MPC for large scale system is proposed and its designation is given in this paper for improving the global performance of closed-loop system. To make the performance of closed-loop system more...
A stabilized Distributed MPC for large scale system is proposed and its designation is given in this paper for improving the global performance of closed-loop system. To make the performance of closed-loop system more close to that using centralized MPC, each subsystem-based MPC added the cost of the entire system into its optimization cost function. In addition, a consistency constraint and dual mode strategy are designed and adopted. Provided an initially feasible solution can be found, subsequent feasibility of the algorithm is guaranteed at every update, and the asymptotic stabilization is established.
This paper investigates variation of infinite horizon (IH) performance of Model Predictive control (MPC) without constraints as the optimization horizon changes. By exploring properties of the Difference Riccati Equat...
详细信息
作者：
Lei HouL. Hou is with the Department of Automation
Shanghai Jiao Tong University Key Laboratory of System Control and Information Processing Ministry of Education of China Shanghai 200240 China hou at ***
— The authors propose an original camera synchronization technique to generate temporally-aligned vision frames during image acquisition, based on phase-locked loop (PLL), and is applicable to low-cost wireless visio...
— The authors propose an original camera synchronization technique to generate temporally-aligned vision frames during image acquisition, based on phase-locked loop (PLL), and is applicable to low-cost wireless vision sensor networks. No dedicated receivers are required so that the algorithm is applicable to vision sensors with only data storage for image or image-feature sequences. A Manchester Encoding inspired illumination modulation method can carry sequential information owing to serial communication, as well as satisfactory robustness to disturbances, such as mobile targets, fluctuating illumination amplitude, and moving cameras, etc., approved by experiments that a 1,000-Hz vision sensor is locked to 500-Hz modulated LED illumination with only 24- μ s jitters.
The control and management problem for large-scale complex urban traffic network is not yet successfully addressed. There are still many difficulties in controlling such large systems, e.g. complexity, high dimension,...
详细信息
ISBN:
(纸本)9781479929153
The control and management problem for large-scale complex urban traffic network is not yet successfully addressed. There are still many difficulties in controlling such large systems, e.g. complexity, high dimension, multiple control objectives, and uncertainties. In the paper, a multi-level MPC hierarchy is proposed to address these difficulties for the control of large-scale urban traffic networks. Under the control hierarchy, a multi-level MPC algorithm is proposed, which includes three levels, the demand balance MPC, the subnetwork MPC, and the intersection controller from top to bottom. A case study is carried out to evaluate the proposed algorithm. The simulation results illustrate the effectiveness of the multi-level controller.
A large amount of networks are found to divide naturally into modules or communities within which the network connections are tight but between which they are sparser. However, it is still not clear that whether spars...
详细信息
A large amount of networks are found to divide naturally into modules or communities within which the network connections are tight but between which they are sparser. However, it is still not clear that whether sparse modules in which the nodes are sparsely connected internally and densely connected with other sparse or cohesive modules possibly exist and have functional meaning in complex networks. In this study, we first test BinTree Seeking method that detects both cohesive and sparse modules in a network on 4 networks with known modular structure. And then, we further study modular structure of 23 complex networks of different types and scales, and promising results indeed reveal that the sparse modules composed by the cohesively isolated nodes widely co-exist with the cohesive modules. Furthermore, the two types of modules are found often spatially closely related with each other. Compared with the cohesive modules, sizes of sparse ones are generally smaller.
In this paper, we study the global asymptotical synchronization problem of delayed complex dynamical networks with a pre-given collection of general connection topologies where synchronization cannot be achieved by us...
详细信息
In this paper, we study the global asymptotical synchronization problem of delayed complex dynamical networks with a pre-given collection of general connection topologies where synchronization cannot be achieved by using any topology alone in this collection. By using single Lyapunov and multiple Lyapunov function methods, two global asymptotical synchronization conditions with the design of switching within the pre-given collection of topologies are presented for synchronizing such complex dynamical networks. According to the topological structure of the connection matrices, we consider more general forms. Simultaneous triangularizability, diagonalizability or even symmetry of the connection matrices is no longer assumed. Finally, simulation results are used to demonstrate the effectiveness of the proposed results.
A computer vision based method was proposed to detect and track pedestrians. It worked on TLD (tracking-learning-detection) framework which was a target detection and tracking algorithm that runs the detection and tra...
详细信息
A computer vision based method was proposed to detect and track pedestrians. It worked on TLD (tracking-learning-detection) framework which was a target detection and tracking algorithm that runs the detection and tracking simultaneously and then integrated the results to update the detection and tracking modules. HOG (histograms of oriented gradients) operator and an incremental classifier based on NCC (normalized cross correlation) matching were proposed to improve the detector for the reason that TLD was prone to an error or failure when it was applied to track a pedestrian. Firstly HOG descriptor was calculated to match with the templates stored in classifier based on NCC, then the results were integrated with tracking module, and final results will be used to update the detecting module. According to the experimental results, this method has good robustness and efficiency.
作者：
Shitao TuLanjuan ZhuDepartment of Automation
Shanghai Jiao Tong University and Key Laboratory of System Control and Information Processing Ministry of Education of China 200240 China
Extraction-Transformation-Loading (ETL) plays an important role in data warehouse. Typically, performance is considered the main factor in ETL projects. Actually, faulttolerance and many other aspects influence the re...
详细信息
ISBN:
(纸本)9781467327626
Extraction-Transformation-Loading (ETL) plays an important role in data warehouse. Typically, performance is considered the main factor in ETL projects. Actually, faulttolerance and many other aspects influence the results of ETL greatly especially when the time period of projects are long and transformation rules cannot be determined from beginning, such as the situation of changing business logic. To satisfy the fault-tolerance and data validation in such kinds of situation, in this paper, we introduce a fault-tolerant algorithm which gives Redo strategy for different process interrupt scenarios. Moreover, we present a compound refresh mode consisting of full and incremental refresh to guarantee data correctness in changing business logic as well as timely data migration.
暂无评论