Data Storage in the Cerebellar Model Articulation Controller (CMAC)

1975 ◽  
Vol 97 (3) ◽  
pp. 228-233 ◽  
Author(s):  
J. S. Albus

The storage of manipulator control functions in the CM AC memory is accomplished by an iterative process which, if the control function is sufficiently smooth, will converge. There are several different techniques for loading the CM AC memory depending on the amount of data which has already been stored and the degree of accuracy which is desired. The CM AC system lends itself to a “natural” partitioning of the control problem into manageable subproblems. At each level the CM AC controller translates commands from the next higher level into sequences of instructions to the next lower level. Data storage, or training, is accomplished first at the lowest level and must be completed, or nearly so, at each level before it can be initiated at the next higher level.

1975 ◽  
Vol 97 (3) ◽  
pp. 220-227 ◽  
Author(s):  
J. S. Albus

CM AC is an adaptive system by which control functions for many degrees of freedom operating simultaneously can be computed by referring to a table rather than by mathematical solution of simultaneous equations. CM AC combines input commands and feedback variables into an input vector which is used to address a memory where the appropriate output variables are stored. Each address consists of a set of physical memory locations, the arithmetic sum of whose contents is the value of the stored variable. The CM AC memory addressing algorithm takes advantage of the continuous nature of the control function in a way which promises to make it possible to store the necessary data in a physical memory of practical size.


2018 ◽  
Vol 71 (1) ◽  
pp. 9-25
Author(s):  
Irina V. Astashova ◽  
Alexey V. Filinovskiy

Abstract We consider a control problem for one-dimensional heat equation with quadratic cost functional. We prove the existence and uniqueness of a control function from a prescribed set, and study the structure of the set of accessible temperature functions. We also prove the dense controllability of the problem for some set of control functions.


2014 ◽  
Vol 24 (1) ◽  
pp. 5-25 ◽  
Author(s):  
Asatur Zh. Khurshudyan

Abstract A method of optimal control problems investigation for linear partial integro-differential equations of convolution type is proposed, when control process is carried out by boundary functions and right hand side of equation. Using Fourier real generalized integral transform control problem solution is reduced to minimization procedure of chosen optimality criterion under constraints of equality type on desired control function. Optimality of control impacts is obtained for two criteria, evaluating their linear momentum and total energy. Necessary and sufficient conditions of control problem solvability are obtained for both criteria. Numerical calculations are done and control functions are plotted for both cases of control process realization.


Author(s):  
Alexander S. Popkov ◽  

This article describes an algorithm for solving the optimal control problem in the case when the considered process is described by a linear system of ordinary differential equations. The initial and final states of the system are fixed and straight two-sided constraints for the control functions are defined. The purpose of optimization is to minimize the quadratic functional of control variables. The control is selected in the class of quadratic splines. There is some evolution of the method when control is selected in the class of piecewise constant functions. Conveniently, due to the addition/removal of constraints in knots, the control function can be piecewise continuous, continuous, or continuously differentiable. The solution algorithm consists in reducing the control problem to a convex mixed-integer quadratically-constrained programming problem, which could be solved by using well-known optimization methods that utilize special software.


2017 ◽  
Vol 17 (03) ◽  
pp. 1750039 ◽  
Author(s):  
Kenan Yildirim ◽  
Seda G. Korpeoglu ◽  
Ismail Kucuk

Optimal boundary control for damping the vibrations in a Mindlin-type beam is considered. Wellposedness and controllability of the system are investigated. A maximum principle is introduced and optimal control function is obtained by means of maximum principle. Also, by using maximum principle, control problem is reduced to solving a system of partial differential equations including state, adjoint variables, which are subject to initial, boundary and terminal conditions. The solution of the system is obtained by using MATLAB. Numerical results are presented in table and graphical forms.


2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Muhammad Altaf Khan ◽  
Saeed Islam ◽  
Sher Afzal Khan ◽  
Ilyas Khan ◽  
Sharidan Shafie ◽  
...  

Leptospirosis is an infectious disease that damages the liver and kidneys, found mainly in dogs and farm animals and caused by bacteria. In this paper, we present the optimal control problem applied to a dynamical leptospirosis infected vector and human population by using multiple control variables. First, we show the existence of the control problem and then use analytical and numerical techniques to investigate the existence cost effective control efforts for prevention of indirect and direct transmission of this disease. In order to do this, we consider three control functions two for human and one for vector population. We completely characterize the optimal control problem and compute the numerical solution of the optimality system using an iterative method.


2017 ◽  
Vol 141 ◽  
pp. 120-124 ◽  
Author(s):  
Xiao Yu ◽  
Yue Zhao ◽  
Chao Li ◽  
Chaoquan Hu ◽  
Liang Ma ◽  
...  

Cloud Computing is well known today on account of enormous measure of data storage and quick access of information over the system. It gives an individual client boundless extra space, accessibility and openness of information whenever at anyplace. Cloud service provider can boost information storage by incorporating data deduplication into cloud storage, despite the fact that information deduplication removes excess information and reproduced information happens in cloud environment. This paper presents a literature survey alongside different deduplication procedures that have been based on cloud information storage. To all the more likely guarantee secure deduplication in cloud, this paper examines file level data deduplication and block level data deduplication.


2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Fitri Yanti ◽  
Nunung Krisnawati

The background of this thesis is an increasing number of legislators Batam from Chinese citizens, at the 1999 elections, there were two people who passed to the DPRD Kota Batam, in the elections of 2004 increased to four Chinese citizens who become legislators Batam. It is not independent of their role during the sitting in the legislature as a representative of the people. This study aims to clarify the role of Chinese citizens who sat as a legislative member in Batam 1999-2009This research is a qualitative research, the historical method with the approach of political science. Steps historical research include: first heuristic, there are two sources of data are primary data and secondary data, primary data in this study is a member of the legislative representatives of the Chinese community, Chinese people, community leaders and members of the Commission, the secondary data taken from any books , newspapers and other documents, the authors do critique source consisting of external criticism and internal criticism, the three researchers to interpret, fourth historiography.The results in this study explained that the role of the Chinese community as a member of the legislature in Batam years 1999-2009, the first legislative function is set statutorily in the form of local regulations (Perda), the second control function or supervise the activities of local government in implementing legislation has been agreed , of these control functions legislators have the right to ask questions, interpellation, questionnaires and motions, the three other functions related to the budget or APBD that has been agreed with the local governments when the plenary session.  Keywords: legislative member, chinese societyLatar belakang penelitian ini adalah terjadinya peningkatan jumlah anggota DPRD Kota Batam dari warga Tionghoa, dimana pada pemilu tahun 1999 terdapat dua orang yang lolos menjadi anggota DPRD Kota Batam dan  pada pemilu tahun 2004 mengalami peningkatan menjadi empat orang. Hal ini tentunya tidak terlepas dari peran mereka selama duduk di legislatif sebagai wakil rakyat. Penelitian ini bertujuan untuk menjelaskan peran warga Tionghoa yang duduk menjadi anggota legislatif di Kota Batam tahun 1999-2009.Jenis penelitian ini adalah penelitian kualitatif historis dengan pendekatan ilmu politik.Adapunlangkah-langkah penelitian historis meliputi: pertama heuristik, di dalamnya terdapat dua sumber data yaitu data primer dan data sekunder, data primer dalam penelitian ini adalah anggota legislatif dari perwakilan masyarakat Tionghoa, masyarakat keturunan Tionghoa, tokoh masyarakat dan anggota KPU, data sekunder diambil dari buku-buku, koran dan dokumen lainnya.Kedua, kritik sumber yang terdiri dari kritik ekstern dan kritik intern.Ketiga, interpretasi dan keempat, historiografi.Hasil dalam penelitian ini menjelaskan bahwa peranan warga Tionghoa sebagai anggota legislatif di Kota Batam tahun 1999-2009,  pertama fungsi legislasi yaitu mengatur undang-undang dalam bentuk peraturan daerah (Perda), kedua fungsi kontrol atau mengawasi kegiatan pemerintah daerah dalam menjalankan Perda yang telah disepakati, dari fungsi kontrol ini anggota DPRD memiliki hak untuk bertanya, interpelasi, angket dan mosi, ketiga fungsi lainnya yang berkaitan dengan anggaran atau APBD yang telah disepakati bersama pemerintah daerah saat sidang paripurna. Bermainnya peran-peran  tersebut dengan baik, semakin menambah nilai kepercayaan warga Tionghoa  memilih dari kalangan mereka untuk pemilu selanjutnya. Kata Kunci: anggota legislatif, masyarakat tionghoa, kota batam  


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