inference control problems in statistical database query systems

... included in small amounts in other printing products Chemical pulping In chemical pulping, the cellulose fibres are uncovered by degradation and removal of the lignin in the wood This is done in large ... virgin pulp, is debarking of the wood and cutting it into chips Since the cellulose fibres in wood are strongly associated with hemi-cellulose and lignin the mechanical methods for pulping virgin ... shared my interest for training and so during breaks there was always some stimulating discussion about strength training, pulse intervals, nutrition or something else in this area Michael and...

Ngày tải lên: 24/03/2014, 05:20

... imposing ever increasing demands for better, faster, cheaper and more reliable control systems There are challenging control needs all around us, in manufacturing and process industries, in transportation ... automation by focusing on interesting issues ranging from the classical area of flexible manufacturing systems to the emerging area of distributed multi-agent control systems A reading track along ... the implications of the scheduling problem Integration of sensing, planning and control in a manufacturing work-cell represents an attractive problem in intelligent control A unified fi'amework...

Ngày tải lên: 12/06/2014, 11:52

... imposing ever increasing demands for better, faster, cheaper and more reliable control systems There are challenging control needs all around us, in manufacturing and process industries, in transportation ... automation by focusing on interesting issues ranging from the classical area of flexible manufacturing systems to the emerging area of distributed multi-agent control systems A reading track along ... the implications of the scheduling problem Integration of sensing, planning and control in a manufacturing work-cell represents an attractive problem in intelligent control A unified fi'amework...

Ngày tải lên: 27/06/2014, 18:20

... imposing ever increasing demands for better, faster, cheaper and more reliable control systems There are challenging control needs all around us, in manufacturing and process industries, in transportation ... automation by focusing on interesting issues ranging from the classical area of flexible manufacturing systems to the emerging area of distributed multi-agent control systems A reading track along ... the implications of the scheduling problem Integration of sensing, planning and control in a manufacturing work-cell represents an attractive problem in intelligent control A unified fi'amework...

Ngày tải lên: 10/08/2014, 01:23

... passivity In this approach the original system is virtually decomposed into subsystems (rigid links and joints) so that the control problem of the complete system is converted into the control ... constraints that the environment imposes on the robot Hence, the large body of theories and results in constrained systems in principle applies to force-controlled robots Roughly speaking, the ... controller ( "In principle" is usually not exactly the same as "in p r a c t i c e " ) Geometric constraints are the conceptual model of infinitely stiff constraints Dynamic constraints are relationships...

Ngày tải lên: 10/08/2014, 01:23

... property being in fact equivalent to functional controllability of outputs for linear systems) Since "inputs" in engineering terms translates into "actuators", devices designed by intentionally introducing ... mechanical design, sensing and actuating systems, and also proposed interesting analysis and control problems, concerning e.g the distribution of control action among several agents (fingers) subject ... of a nonlinear, driftless control system In the related vocabulary, components of u are "inputs" The non-integrability of the original constraint has its control- theoretic counterpart in Frobenius...

Ngày tải lên: 10/08/2014, 01:23

... by adaptively updating some rule parameter [3] In order to make the developed fuzzy controllers more convincing, it becomes a trend in demonstrating the controller performance in practice Particularly, ... structure control is applied to robot manipulators to solve the problem in position tracking control, hybrid force/position control, contour-following control, and the deburring robot control, ... using some linguistic rules, and then establish the control by sequentially learning the control strategies of the individual subsystems TaskExcution LearningMechanism , ' Switch', LinguistiiCriteri°nI"...

Ngày tải lên: 10/08/2014, 01:23

... the input-output decoupling and linearization problem for the original output q The mapping from f to q, represented by Eq (2.14), contains the main nonlinearities of the robot link dynamics In ... By working in the Fourier domain, this method defines the required open-loop control torque in one step (for linear models of one-link flexible arms) or in few iterations (in multi-link manipulators) ... i o n in t h e f r e q u e n c y d o m a i n For linear non-minimum phase mechanical systems, a stable inversion algorithm in the frequency domain has been introduced in [3] by regarding both...

Ngày tải lên: 10/08/2014, 01:23

... bipeds is minimizing the required control effort in regulating the motion Studying the passive (unactuated) systems is the first effort in this direction This line of research is still in its infancy ... the impact problems of kinematic chains is yet to be written Thus, modeling and control of bipedal machines would greatly benefit from future results obtained by the investigators in the field ... bipedal systems [16] The approach eliminates the discontinuity problems, allows the application of the analytical tools developed to study nonlinear dynamical systems, and brings a formal definition...

Ngày tải lên: 10/08/2014, 01:23

... such as ping-pong, air hockey, juggling, catching and balancing The remainder of this chapter will provide a brief introduction to the principles behind visual servoing and highlight the control ... servo control include the image plane coordinares of points in the image [4, 9, 16, 35], the distance between two points in the image plane and the orientation of the line connecting those two points ... routing If this tendency is confirmed, then new control problems will be considered where the interaction between driver and control system will be dominant In heavy vehicles platooning and in...

Ngày tải lên: 10/08/2014, 01:23

... included in the system Finally, vision-based systems often need to operate in different modes depending on the surrounding circumstances (for example a car may be following, overtaking, merging ... for combining and integrating the inputs and control of a multitude of sensors R o b u s t n e s s Multisensor fusion techniques have been applied to a wide range of problem domains, including: ... navigation systems In: Proe 1994 IEEE Int Conf Multisens Fusion Integr Intel Syst Las Vegas, NV, pp 1-8 [9] Dekhil M, Henderson T C 1996 Instrumented sensor systems In: Proe 1996 I E E E Int Conf...

Ngày tải lên: 10/08/2014, 01:23

... the points of contact remains zero (i.e the points remain in contact) 216 B.J McCarragher 3.1.2 E n a b l i n g c o n d i t i o n In addition to determining motion that maintains a constraint, ... useful in restricting input Potential fields can be divided into two main groups, attractive and repulsive potentials The attractive potentials are used for maintaining and enabling constraints, ... classified into two categories according to [34]: "flexible flow systems" and "general flexible manufacturing systems" (called the "general flexible machining systems" in [34]) Flexible flow systems...

Ngày tải lên: 10/08/2014, 01:23

... In this survey chapter, we present some of the issues in designing algorithms for the control of distributed, multi-agent systems The control of such systems is becoming an increasing issue in ... Synchronization via Integration of Sensing, Planning, and Control in a Manufacturing Work-cell Tzyh-Jong Tarn 1, Mumin Song 1, and Ning Xi Department of Systems Science and Mathematics, Washington University, ... sensing to achieve an intelligent task scheduling, action planning and control The major difficulty in developing a method for modeling, analysis and design of integrated schedule, plan and control...

Ngày tải lên: 10/08/2014, 01:23

... Improvements in performance may also be obtained by allowing aircraft to individually fine tune their trajectories making use of the detailed dynamical models contained in the autopilot Finally, greater ... planner in several qualitatively different ways obtained by adjusting the parameters in the individual contributions of the participating vector fields In the outlined experiments two agents having ... Japan in the West to the Sierra Nevada mountains in the East In addition, around large urban airports there are Terminal Radar Approach Control facilities (TRACONs) numbering over 150 For instance,...

Ngày tải lên: 10/08/2014, 01:23

... of Queuing Systems 336 pp 1993 [3-540-19872-5] Noninteracting Control with Stability for Nonlinear Systems 196 pp 1994 [3-540-19891-1] Vol 197: Henry, J.; Yvon, J.P (Eds) System Modelling and ... Technology Inc, Cupertino, CA [5] Erdman M, Lozano-Perez T 1987 On multiple moving objects Algorithmica 2:477-595 [6] Erzberger H 1992 CTAS: Computer intelligence for air traffic control in the terminal ... NASA Ames Research Center, preprint [21] Pappas G J, Lygeros J, Godbole D N 1995 Stabilization and tracking of feedback linearizable systems under input constraints In: Proc 3~th IEEE ConJ Decision...

Ngày tải lên: 10/08/2014, 01:23

... Open problems in control of linear discrete multidimensional systems Li Xu, Zhiping Lin, Jiang-Qian Ying, Osami Saito, Yoshihisa Anazawa 221 Problem 6.8 An open problem in adaptative nonlinear control ... restricted In [4] is studied the preservation of properties linked to control problems (like weighted nominal performance and robust stability) for Single-Input SingleOutput systems, when performing ... interest in substitutions we propose in section 22.2 three interesting problems The motivations concerning the proposed problems are presented in section 22.3 DESCRIPTION OF THE PROBLEMS In this...

Ngày tải lên: 29/03/2014, 23:20

... discuss related work in Section and conclude in Section DATABASE COMPRESSION The nature of query processing in databases imposes several constraints in choosing a suitable database compression ... relation in Line 07 Lines 08 − 10 explore all possible ways to insert decompression operators before the join while maintaining the best possible plan for each possible output tag by calling subroutine ... hash join in the future and study its impact on our techniques Queries: We are interested in queries (particularly joins) involving compressed string-valued attributes Although queries involving...

Ngày tải lên: 30/03/2014, 13:20

... described in [ONG84] Our initial experience with the system is that dynamic linking is not preferable to static linking One problem is that initial loading of routines is slow Also, the ADT routines ... number of index keys in an index number of pages in the index the constant appearing in: rel-name.field-name OPR value the maximum value in the key range if known the minimum value in the key ... Corp., White Plains, N.Y., June 1980 [KOOI82] Kooi, R and Frankfurth, D., "Query Optimization in INGRES," IEEE Database Engineering, September 1982 [LITW80] Litwin, W., "Linear Hashing: A New Tool...

Ngày tải lên: 22/10/2013, 10:15

... resource peering,” in Proceedings of the 19th ACM Symposium on Operating Systems Principles, October 2003 [10] S Grinstein, J Huth, and J Schopf, “Resource predictors in hep applications,” in Proc ... needs and holdings There are several problems with calculating this value in computational systems We label these as problems with a well-defined currency, and in calculating and expressing valuation: ... mostly controlled by a single entity) quickly made pricing for shared resource allocation a low priority Shared resource allocation remained a hot topic in operating systems, but the goal in this...

Ngày tải lên: 07/03/2014, 17:20

... many addressing errors, the source of the corruption in a data or control error can be tracked during debugging by examining the code that is known to use the corrupted data In future database management ... errors Error checking is not usually done systematically The checking code has to be maintained as the software it checks is maintained Implementing and testing error checkers increases development ... manage and maintain the system are separated into operator and maintenance errors, since the system’s owners controlled day-to-day operations while Tandem was responsible for routine maintenance...

Ngày tải lên: 28/04/2014, 13:32