International Journal of Automation and Computing
http://www.ijac.net
Big Data Modeling and Analysis of Microblog Ecosystem
http://www.ijac.net/en/article/id/6ca1fc94-b7b8-446f-80cd-d9fffc7bbc3a
112119127
Hua-Ping Zhang, Rui-Qi Zhang, Yan-Ping Zhao, Bao-Jun Ma
Top-<em>k</em> Outlier Detection from Uncertain Data
http://www.ijac.net/en/article/id/f510d031-9092-4b23-ab40-1e792e2f4863
k distance-based outlier detection from uncertain data objects. In this work, an uncertain object is modelled by a probability density function of a Gaussian distribution. The naive approach of distance-based outlier detection makes use of nested loop. This approach is very costly due to the expensive distance function between two uncertain objects. Therefore, a populated-cells list (PC-list) approach of outlier detection is proposed. Using the PC-list, the proposed top-k outlier detection algorithm needs to consider only a fraction of dataset objects and hence quickly identifies candidate objects for top-k outliers. Two approximate top-k outlier detection algorithms are presented to further increase the efficiency of the top-k outlier detection algorithm. An extensive empirical study on synthetic and real datasets is also presented to prove the accuracy, efficiency and scalability of the proposed algorithms.]]>112128142
Salman Ahmed, Shaikh Hiroyuki
Strategies and Methods for Cloud Migration
http://www.ijac.net/en/article/id/1975b51e-d625-4662-aae9-e0086711da48
112143152
Jun-Feng Zhao, Jian-Tao Zhou
Biologically Inspired Node Generation Algorithm for Path Planning of Hyper-redundant Manipulators Using Probabilistic Roadmap
http://www.ijac.net/en/article/id/20d82203-927a-429a-811b-9eb2dd68e67b
112153161
Eric Lanteigne, Amor Jnifene
Issues in the Mining of Heart Failure Datasets
http://www.ijac.net/en/article/id/8ba11808-42a8-4118-bbd9-3b4be699e3e5
112162179
Nongnuch Poolsawad, Lisa Moore, Chandrasekhar Kambhampati
New Results on PWARX Model Identification Based on Clustering Approach
http://www.ijac.net/en/article/id/53036ff1-d681-4193-948b-85e1a93c7e16
112180188
Zeineb Lassoued, Kamel Abderrahim
Distributed <i>H</i><sub>∞</sub> PID Feedback for Improving Consensus Performance of Arbitrary-delayed Multi-agent System
http://www.ijac.net/en/article/id/6073c414-59aa-4788-8ff1-3219e6993132
H_{∞} proportional-integral-differential (PID) feedback for arbitrary-order delayed multi-agent system is investigated to improve the system performance. The closed-loop multi-input multi-output (MIMO) control framework with the distributed PID controller is firstly described for the multi-agent system in a unified way. Then, by using the matrix theory, the prescribed H_{∞} performance criterion of the multi-agent system is shown to be equivalent to several independent H_{∞} performance constraints of the single-input single-output (SISO) subsystem with respect to the eigenvalues of the Laplacian matrix. Subsequently, for each subsystem, the set of the PID controllers satisfying the required H_{∞} performance constraint is analytically characterized based on the extended Hermite-Biehler theorem. Finally, the three-dimensional set of the decentralized H_{∞} PID control parameters is derived by finding the intersection of the H_{∞} PID regions for all the decomposed subsystems. The simulation results reveal the effectiveness of the proposed method.]]>112189196
Lin-Lin Ou, Jun-Jie Chen, Dong-Mei Zhang, Wei-Dong Zhang
Structured Estimation of Tire Forces and the Ground Slope Using SM Observers
http://www.ijac.net/en/article/id/995db3ab-4c21-45b8-9ab3-02dbb2b55404
TM) integrated in the driving simulation environment SCANeR^{TM}-Studio.]]>112197204
Belgacem Jaballah, Nacer Kouider
Adaptive Subspace Predictive Control with Time-varying Forgetting Factor
http://www.ijac.net/en/article/id/d7099020-06c8-4e71-9169-adf03419bfb4
112205209
Li Zhang, Shan-Zhi Xu, Hong-Tao Zhao
Stabilizing Sets of PI/PID Controllers for Unstable Second Order Delay System
http://www.ijac.net/en/article/id/4eed4f0c-2970-4487-8b93-82ef8969b732
112210222
Rihem Farkh, Kaouther Laabidi, Mekki Ksouri
Fault Detection for a Class of Impulsive Switched Systems
http://www.ijac.net/en/article/id/649b3c2f-19bd-400e-adc1-c13fe50a5b41
H_{∞} performance for disturbances and faults. Sufficient conditions for the design of fault detection (FD) filters are presented by linear matrix inequalities. Moreover, the filter gains are characterized according to a solution of a convex optimization. Finally, an example derived from a pulse-width-modulation-driven boost converter is given to illustrate the effectiveness of the FD design approach.]]>112223230
Qing-Yu Su, Yan-Cheng Li, Xing-Ze Dai, Jian Li