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Journal articles on the topic 'Redundancy'

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1

Kanno, Yoshihiro, and Yakov Ben-Haim. "Redundancy and Robustness, or When Is Redundancy Redundant?" Journal of Structural Engineering 137, no. 9 (2011): 935–45. http://dx.doi.org/10.1061/(asce)st.1943-541x.0000416.

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2

Barnard, Catherine. "Redundant approaches to redundancy." Cambridge Law Journal 59, no. 1 (2000): 36–39. http://dx.doi.org/10.1017/s000819730033001x.

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THE apparently straightforward definition of redundancy contained in section 139 of the Employment Rights Act 1996 has generated a disproportionate and confused body of case law. In essence, redundancy pay is payable in three situations: the business disappears (s. 139(1)(a)(i)); the workplace disappears (s. 139(1)(a)(ii)); the job disappears (s. 139(1)(b)). As far as the disappearing workplace is concerned, recent cases have shown the courts taking a more pragmatic approach. The old contractual test laid down in UK Atomic Energy Authority v. Claydon [1974] I.C.R. 128 (where, by my contract, c
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3

Harada, Takashi. "Mode changes of redundantly actuated asymmetric parallel mechanism." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 230, no. 3 (2015): 454–62. http://dx.doi.org/10.1177/0954406215588479.

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A novel parallel mechanism which enlarges the workspace by singularity-free mode changes is proposed. The proposed mechanism has inherited the design of Linear DELTA, three translational degree-of-freedom and the moving plate driven by three linear actuators. In addition, the mechanism is extended by redundant actuation by four linear actuators and asymmetric design. New criterions about redundancy and singularity of redundantly actuated parallel mechanism using summation and product of determinants of minor matrices of the transposed Jacobian matrix are proposed. Redundant actuation and asymm
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4

Gitay, Habiba, J. Bastow Wilson, and William G. Lee. "Species Redundancy: A Redundant Concept?" Journal of Ecology 84, no. 1 (1996): 121. http://dx.doi.org/10.2307/2261706.

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5

Trypke, Melanie, Ferdinand Stebner, and Joachim Wirth. "The More, the Better? Exploring the Effects of Modal and Codal Redundancy on Learning and Cognitive Load: An Experimental Study." Education Sciences 14, no. 8 (2024): 872. http://dx.doi.org/10.3390/educsci14080872.

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This study explores how receiving identical information from different sources affects learning and cognitive load, focusing on two types of redundancy: modal redundancy, where redundant information comes from two visual sources (images and written text), and codal redundancy, where redundant information comes from two sources of different modalities which utilize the same symbol system (spoken and written text). Using a 2 × 2 between-subjects design involving modal (yes/no) and codal (yes/no) redundancy, 158 participants completed twenty learning tasks, consisting of ten construction and ten
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Cymek, D. H., S. Jahn, and D. H. Manzey. "Monitoring and Cross-Checking Automation." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 60, no. 1 (2016): 143–47. http://dx.doi.org/10.1177/1541931213601033.

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The present study addresses effects of human redundancy on automation monitoring and cross-checking. Thirty-six participants performed a multi-task, consisting of three subtasks that mimic basic work demands of operators in a control room of a chemical plant. One of the tasks was to monitor and cross-check a highly reliable and safety-critical automated process. Participants were randomly assigned to two groups: (1) “Non-redundant”: participants worked on all tasks alone as the only responsible operator. (2) “Redundant”: participants were informed that a second crewmate would work in parallel
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7

Liu, Lu, Xin Chen, and Dong Cao. "Research of Redundancy Management on Fight Control Computer for Unmanned Aerial Vehicle." Advanced Materials Research 383-390 (November 2011): 1573–77. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.1573.

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Redundancy technology is very important to improve the reliability and fault tolerant of redundant flight control computer for unmanned aerial vehicle. The key technology is redundancy management strategies and methods. The redundancy management strategies and methods are researched based on hardware redundancy and software management for the sample redundant flight control computer The redundancy management strategies make full use of the advantages of distributed systems and the CAN bus transmission characteristics, and solve the problem of fault diagnosis and fault treatment and system reco
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8

Conkur, E. Sahin, and Rob Buckingham. "Clarifying the definition of redundancy as used in robotics." Robotica 15, no. 5 (1997): 583–86. http://dx.doi.org/10.1017/s0263574797000672.

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Several descriptions of redundancy are presented in the literature, often from widely different perspectives. Therefore, a discussion of these various definitions and the salient points would be appropriate. In particular, any definition and redundancy needs to cover the following issues; the difference between multiple solutions and an infinite number of solutions; degenerate solutions to inverse kinematics; task redundancy; and the distinction between non-redundant, redundant and highly redundant manipulators.
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9

Potkonjak, Veljko. "Application of redundant robots to constrained-motion tasks." Robotica 10, no. 5 (1992): 397–407. http://dx.doi.org/10.1017/s0263574700010602.

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SUMMARYThe problem of the constrained motion of robot end-effector is discussed. The redundant robot is considered, redundancy being added in order to improve robot working characteristics. In the phase of free motion towards the constraint the errors of basic non-redundant configuration are corrected by means of redundancy. During the constrained motion redundancy plays the role either of active or passive compliance. Between these two phases, the collision with the constraint occurs, and the impact can be absorbed by using redundancy.
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10

Wu, J., J.-S. Wang, L.-P. Wang, and T.-M. Li. "Dexterity and stiffness analysis of a three-degree-of-freedom planar parallel manipulator with actuation redundancy." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 221, no. 8 (2007): 961–69. http://dx.doi.org/10.1243/09544062jmes456.

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The current paper deals with the dexterity and stiffness of a three-degree of freedom (DOF) planar parallel manipulator with actuation redundancy, which is a subpart of a four-DOF-hybrid machine tool. Based on the kinematics, the dexterity is analysed. The stiffness indices, which are the maximum deflection of the moving platform under the action of a unit force and the minimum eigenvalue of the stiffness matrix of the manipulator, are presented for investigating the stiffness. According to the minimum eigenvalue index, it is proved that actuation redundancy can improve the stiffness of the pa
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11

Okabe, Kousuke. "Kinematic redundancy: Kinetics for use with redundant manipulators." Open Access Government 38, no. 1 (2023): 288–89. http://dx.doi.org/10.56367/oag-038-10675.

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Kinematic redundancy: Kinetics for use with redundant manipulators Kousuke Okabe, an Associate Professor in the Department of Electrical and Computer Engineering, explores kinematic redundancy and the redundant manipulator using the Grassmann algebra. In recent years, the industrial world has witnessed the launch of manipulators with kinematic redundancy such as those from Yaskawa Electric Corporation's MOTOMAN-SIA series. However, for many of these, redundancy is applied kinematically, through contact avoidance between the arm and the environment, and not dynamically. The robot's operations i
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12

Ma, Shugen, Shigeo Hirose, and Hiroshi Yoshinada. "Efficient Redundancy Control of Redundant Manipulators." Journal of the Robotics Society of Japan 14, no. 5 (1996): 703–9. http://dx.doi.org/10.7210/jrsj.14.703.

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13

Corradi, David, Dawit Tibebu Trinenuh, Geraldine Clarebout, and Jan Elen. "How Multiple External Representations Can Help or Constrain Learning in Science." Journal of Cognitive Education and Psychology 13, no. 3 (2014): 411–23. http://dx.doi.org/10.1891/1945-8959.13.3.411.

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Redundant information has been found to be an important factor that can limit or enhance learning with multiple external representations (MER). As such, it is seen as a crucial factor in understanding how MER can help increase conceptual understanding with low prior knowledge learners, especially when these representations are presented in a sequence. In this study, multiple levels of redundant information are compared with each other to understand how redundancy determines learning with MER when these MER are sequenced. Ninety-two participants, undergraduates in education (age: M = 19.92 year
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14

Wang, Hai Tao, Jian Zhou Li, Yan Li, Xue Ping Zhang, and Hui Chen. "A Probabilistic Based Redundancy Control Algorithm for Wireless Sensor Network." Applied Mechanics and Materials 347-350 (August 2013): 718–23. http://dx.doi.org/10.4028/www.scientific.net/amm.347-350.718.

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Existing redundancy control algorithms in WSN often have some evident shortcomings such as hypothesis is too much, application backgrounds are not clear, the precision of redundancy control is low and computing complexity is high. In this paper a probabilistic based redundancy control algorithm (PBRCA) is proposed. Aiming at specific application scenarios, PBRCA introduces the probabilistic estimation theory, taking uncertainty in reasonable range as cost to determine redundant nodes in network and allow as many redundant nodes as possible to sleep. This algorithm requires fewer assumed condit
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15

Ju, Jeongwoo, Heechul Jung, and Junmo Kim. "Extending Contrastive Learning to Unsupervised Redundancy Identification." Applied Sciences 12, no. 4 (2022): 2201. http://dx.doi.org/10.3390/app12042201.

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Modern deep neural network (DNN)-based approaches have delivered great performance for computer vision tasks; however, they require a massive annotation cost due to their data-hungry nature. Hence, given a fixed budget and unlabeled examples, improving the quality of examples to be annotated is a clever step to obtain good generalization of DNN. One of key issues that could hurt the quality of examples is the presence of redundancy, in which the most examples exhibit similar visual context (e.g., same background). Redundant examples barely contribute to the performance but rather require addit
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16

Anton, E., R. Righter, and I. M. Verloop. "Scheduling under redundancy." ACM SIGMETRICS Performance Evaluation Review 50, no. 2 (2022): 30–32. http://dx.doi.org/10.1145/3561074.3561085.

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In the present extended abstract we investigate the impact that the scheduling policy has on the performance of redundancy systems when the usual exponentially distributed i.i.d. copies assumption is relaxed. In particular, we investigate the performance, in terms of the total number of jobs in the system, not only for redundancy-oblivious policies, such as FCFS (First-Come-First-Serve) and ROS (Random- Order-of-Service), but also for redundancy-aware policies of the form Π1-?2, where Π1 discriminates among job classes and Π2 discriminates among jobs of the same class. Examples of first-level
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17

Wang, Jinsong, Jun Wu, Tiemin Li, and Xinjun Liu. "Workspace and singularity analysis of a 3-DOF planar parallel manipulator with actuation redundancy." Robotica 27, no. 1 (2009): 51–57. http://dx.doi.org/10.1017/s0263574708004517.

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SUMMARYThis paper deals with the position workspace, orientation workspace, and singularity of a 3-degree-of-freedom (DOF) planar parallel manipulator with actuation redundancy, which is created by introducing a redundant link with active actuator to a 3-DOF nonredundant parallel manipulator. Based on the kinematic analysis, the position workspace and orientation workspace of the redundantly actuated parallel manipulator and its corresponding nonredundant parallel manipulator are analyzed, respectively. In the singularity analysis phase, the relationship between the generalized input velocity
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18

Nguyen, Anh Tuan, Jian Xu, Diu Khue Luu, Qi Zhao, and Zhi Yang. "Advancing System Performance with Redundancy: From Biological to Artificial Designs." Neural Computation 31, no. 3 (2019): 555–73. http://dx.doi.org/10.1162/neco_a_01166.

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Redundancy is a fundamental characteristic of many biological processes such as those in the genetic, visual, muscular, and nervous systems, yet its driven mechanism has not been fully comprehended. Until recently, the only understanding of redundancy is as a mean to attain fault tolerance, which is reflected in the design of many man-made systems. On the contrary, our previous work on redundant sensing (RS) has demonstrated an example where redundancy can be engineered solely for enhancing accuracy and precision. The design was inspired by the binocular structure of human vision, which we bel
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19

Müller, Andreas. "On the terminology and geometric aspects of redundant parallel manipulators." Robotica 31, no. 1 (2012): 137–47. http://dx.doi.org/10.1017/s0263574712000173.

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SUMMARYParallel kinematics machines (PKMs) can exhibit kinematics as well as actuation redundancy. While the meaning of kinematic redundancy has been already clarified for serial manipulators, actuation redundancy, which is only possible in PKMs, is differently classified in the literature. In this paper a consistent terminology for general redundant PKM is proposed. A kinematic model is introduced with the configuration space (c-space) as central part. The notion of kinematic redundancy is recalled for PKM. C-space, output, and input singularities are distinguished. The significance of the c-
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20

Isern, E., and J. Figueras. "IDDQ Detectable Bridges in Combinational CMOS Circuits." VLSI Design 5, no. 3 (1997): 241–52. http://dx.doi.org/10.1155/1997/93809.

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Undetectable stuck-at faults in combinational circuits are related to the existence of logic redundancy (s-redundancy). Similarly, logically equivalent nodes may cause some bridging faults to become undetectable by IDDQ testing. An efficient method for the identification and removal of such functionally equivalent nodes (f-redundant nodes) in combinational circuits is presented. OBDD graphs are used to identify the functional equivalence of candidate to f-redundancy nodes. An f-redundancy removal algorithm based on circuit transformations to improve bridging fault testability, is also proposed
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21

Royal, Kenneth D., Kurt O. Gilliland, and Georgette A. Dent. "A Student-Led Methodology for Evaluating Curricular Redundancy." Journal of MultiDisciplinary Evaluation 10, no. 23 (2014): 1–8. http://dx.doi.org/10.56645/jmde.v10i23.386.

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Background: Curricular redundancy can be a significant problem for any educational curriculum. Redundancy can be both desirable and undesirable, but differentiating the two can be quite challenging. Further, pinpointing undesirable redundancy and quantifying it so as to produce an estimate of inefficiency is even more difficult. Purpose: The purpose of this research is to describe a student-led strategy for evaluating redundancy in a highly integrated medical school curriculum. It is our hope that the methodology presented here will serve as a useful evaluation model for persons attempting sim
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22

Haug, Edward J., Vincent De Sapio, and Adrian Peidro. "Extended Operational Space Kinematics, Dynamics, and Control of Redundant Serial Robots." Robotics 13, no. 12 (2024): 170. https://doi.org/10.3390/robotics13120170.

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A recently developed differential geometric representation of redundant serial robot kinematics is employed to create a new extended operational space dynamics and control formulation that explicitly accounts for redundant robot degrees of freedom. This formulation corrects deficiencies in kinematics and dynamics of redundant serial robots that have relied for over half a century on error-prone generalized inverse velocity-based kinematics for redundancy resolution. New ordinary differential equations of robot operational space dynamics are obtained, without the need for ad hoc derivation, in
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23

Cașcaval, Petru, and Florin Leon. "Optimization Methods for Redundancy Allocation in Hybrid Structure Large Binary Systems." Mathematics 10, no. 19 (2022): 3698. http://dx.doi.org/10.3390/math10193698.

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This paper addresses the issue of optimal redundancy allocation in hybrid structure large binary systems. Two aspects of optimization are considered: (1) maximizing the reliability of the system under the cost constraint, and (2) obtaining the necessary reliability at a minimum cost. The complex binary system considered in this work is composed of many subsystems with redundant structure. To cover most of the cases encountered in practice, the following kinds of redundancy are considered: active redundancy, passive redundancy, hybrid standby redundancy with a hot or warm reserve and possibly o
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Wu, Ping Li. "The Implementation Scheme of DCS Redundancy Fault-Tolerant in the Process Industry Control." Advanced Materials Research 546-547 (July 2012): 840–44. http://dx.doi.org/10.4028/www.scientific.net/amr.546-547.840.

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Process industry control put very high demands on the reliability of DCS. Application of Redundancy Fault-tolerant Technology is one of the most effective way to improve the reliability of DCS. In this paper, we elaborated on the implementation scheme of DCS redundancy fault-tolerant in process industry control, which includes the configuration of DCS hardware system redundancy, the redundant fault-tolerant realization method of I/O module, etc.
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Sun, Qiao, Shaokun Jia, Jie Zhang, Kunpeng Zhao, Zhixiang Li, and Bo Yu. "Research on redundant control mode of coordinated controller based on dual control cores." E3S Web of Conferences 213 (2020): 02006. http://dx.doi.org/10.1051/e3sconf/202021302006.

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Dual CPU redundant operation of PLC is of great significance to the reliability of industrial automation control system. In view of the problems existing in the traditional dual CPU PLC redundancy control mode based on hardware strategy, this paper proposes a dual CPU redundancy control idea based on software strategy, and describes in detail the specific scheme of Dual CPU redundancy software design using A-B ControlLogix series PLC.
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Gao, Zhihui, Chao Yun, and Yushu Bian. "Minimizing joint‐torques of the flexible redundant manipulator on the premise of vibration suppression." International Journal of Intelligent Computing and Cybernetics 1, no. 4 (2008): 634–45. http://dx.doi.org/10.1108/17563780810919168.

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PurposeThe purpose of this paper is to examine a new idea of vibration control which minimizes joint‐torques and suppresses vibration of the flexible redundant manipulator.Design/methodology/approachUsing the kinematics redundancy feature of the flexible redundant manipulator, the self‐motion in the joint space can be properly chosen to both suppress vibration and minimize joint‐torques.FindingsThe study shows that the flexible redundant manipulator still has the second optimization feature on the premise of vibration suppression. The second optimization feature can be used to minimize joint‐t
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Tsaur, Sheng-Hshiung, and Chang-Hua Yen. "Service redundancy in fine dining: evidence from Taiwan." International Journal of Contemporary Hospitality Management 31, no. 2 (2019): 830–54. http://dx.doi.org/10.1108/ijchm-09-2017-0574.

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Purpose Service excellence has been recognized as a crucial means of achieving customer delight. Several recent studies have argued that redundant services may be perceived as unnecessary by customers; however, few studies have explored the construct of service redundancy. This study aims to identify and classify service redundancy in the foodservice industry. Design/methodology/approach This qualitative study conducted in-depth interviews with 72 participants, namely, 36 customers and 36 managers of fine dining restaurants in Taiwan. Content analysis of the data yielded the classification of
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28

Singh, Harshinder, and Neeraj Misra. "On redundancy allocations in systems." Journal of Applied Probability 31, no. 4 (1994): 1004–14. http://dx.doi.org/10.2307/3215324.

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Allocation of a redundant component in a system in order to optimize, in some sense, the lifetime of the system is an important problem in reliability theory, having practical applications. Consider a series system consisting of two components (say C1 and C2), having independent random lifetimes X1 and X2, and suppose a component C having random lifetime X (independent of X1 and X2) is available for active redundancy with one of the components. Let U1 = min(max(X1, X), X2) and U2 = min(X1, max(X2, X)), so that U1 (U2) denote the lifetime of a system obtained by allocating C to C1 (C2). We cons
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Lin, Lin, Jian Tang, and Ling Yu. "Non-Utility and Redundancy of Modern Architectural Space." Applied Mechanics and Materials 438-439 (October 2013): 1801–4. http://dx.doi.org/10.4028/www.scientific.net/amm.438-439.1801.

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Redundancy has penetrated into literature, art, architecture and many other areas with the arrival of redundancy era, which significantly impact on architecture. This paper discusses the important role of redundant space, also called non-utility space, in architecture from four dimensions of philosophical view within redundant space, material and spiritual value of space and serving as medium space, using a philosophical way of taking architecture as part of historical events.
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DUATO, JOSÉ. "A THEORY TO INCREASE THE EFFECTIVE REDUNDANCY IN WORMHOLE NETWORKS." Parallel Processing Letters 04, no. 01n02 (1994): 125–38. http://dx.doi.org/10.1142/s0129626494000144.

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Fault-tolerant systems aim at providing continuous operations in the presence of faults. Multicomputers rely on an interconnection network between processors to support the message-passing mechanism. Therefore, the reliability of the interconnection network is very important for the reliability of the whole system. This paper analyses the effective redundancy available in a wormhole network by combining connectivity and deadlock freedom. Redundancy is defined at the channel level, giving a sufficient condition for a channel to be redundant and computing the set of redundant channels. The redun
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31

Grillo, Sebastián Alberto, José Luis Vázquez Noguera, Julio César Mello Mello Román, et al. "Redundancy Is Not Necessarily Detrimental in Classification Problems." Mathematics 9, no. 22 (2021): 2899. http://dx.doi.org/10.3390/math9222899.

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In feature selection, redundancy is one of the major concerns since the removal of redundancy in data is connected with dimensionality reduction. Despite the evidence of such a connection, few works present theoretical studies regarding redundancy. In this work, we analyze the effect of redundant features on the performance of classification models. We can summarize the contribution of this work as follows: (i) develop a theoretical framework to analyze feature construction and selection, (ii) show that certain properly defined features are redundant but make the data linearly separable, and (
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Miglino, Orazio, and Richard Walker. "Genetic Redundancy in Evolving Populations of Simulated Robots." Artificial Life 8, no. 3 (2002): 265–77. http://dx.doi.org/10.1162/106454602320991855.

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A number of authors have argued that redundancy in biological organisms contributes to their evolvability. We investigate this hypothesis via the experimental manipulation of genetic redundancy in evolving populations of simulated robots controlled by artificial neural networks. A genetic algorithm is used to simulate the evolution of robots with the ability to perform a previously studied task. Redundancy is measured using systematic lesioning. In our experiments, populations of robots with larger genotypes achieve systematically higher fitness than populations whose genotypes are smaller. It
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33

Borovinskaya, Ekaterina. "Redundancy-Free Models for Mathematical Descriptions of Three-Phase Catalytic Hydrogenation of Cinnamaldehyde." Catalysts 11, no. 2 (2021): 207. http://dx.doi.org/10.3390/catal11020207.

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A new approach on how to formulate redundancy-free models for mathematical descriptions of three-phase catalytic hydrogenation of cinnamaldehyde is presented. An automatically created redundant (generalized) model is formulated according to the complete reaction network. Models based on formal kinetics and kinetics concerning the Langmuir-Hinshelwood theory for three-phase catalytic hydrogenation of cinnamaldehyde were investigated. Redundancy-free models were obtained as a result of a step-by-step elimination of model parameters using sensitivity and interval analysis. Starting with 24 parame
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Ben Romdhane, Montassar, and Aïmen Khacharem. "The Impact of Redundancy and Video Control on Tactical Learning in Basketball within the Context of Physical Education." Tunisian Journal of Sports Science and Medicine 2, no. 1 (2024): 33–37. https://doi.org/10.61838/kman.tjssm.2.1.5.

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This study examines the impact of redundancy and rhythm control in video on the development of tactical knowledge in basketball among 15-16-year-old learners. Participants were exposed to four conditions: "Audio without control" format (N = 20), redundant "Audio + Text without control" format (N = 20), "Audio with control" format (N = 20), and redundant "Audio + Text with control" format (N = 20). Results revealed that students achieved higher comprehension and transfer scores in the two conditions where the video was controlled. Additionally, performance demonstrated a negative impact of redu
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35

Cardenas, Ronald, Matthias Galle, and Shay B. Cohen. "On the Trade-off between Redundancy and Cohesiveness in Extractive Summarization." Journal of Artificial Intelligence Research 80 (June 6, 2024): 273–326. http://dx.doi.org/10.1613/jair.1.15191.

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Extractive summaries are usually presented as lists of sentences with no expected cohesion between them and with plenty of redundant information if not accounted for. In this paper, we investigate the trade-offs incurred when aiming to control for inter-sentential cohesion and redundancy in extracted summaries, and their impact on their informativeness. As case study, we focus on the summarization of long, highly redundant documents and consider two optimization scenarios, reward-guided and with no supervision. In the reward-guided scenario, we compare systems that control for redundancy and c
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Stirzaker, Rebecca Jane, and Laura Galloway. "Ageing and redundancy and the silver lining of entrepreneurship." International Journal of Entrepreneurship and Innovation 18, no. 2 (2017): 105–14. http://dx.doi.org/10.1177/1465750317706441.

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The article reports a qualitative study of individuals aged 50+ who have been made redundant and subsequently started a firm or become self-employed. There is some literature on both entrepreneurship post-redundancy and amongst older people, but the intersection of these is little explored. In this article, the drivers and experiences of the redundant older entrepreneurs are explored and in particularly, they are viewed through the lens of Shapero and Sokol’s entrepreneurial event theory (1982). Findings include that entrepreneurship was triggered by redundancy, but though entirely reactionary
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Singh, Harshinder, and Neeraj Misra. "On redundancy allocations in systems." Journal of Applied Probability 31, no. 04 (1994): 1004–14. http://dx.doi.org/10.1017/s0021900200099526.

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Allocation of a redundant component in a system in order to optimize, in some sense, the lifetime of the system is an important problem in reliability theory, having practical applications. Consider a series system consisting of two components (say C 1 and C 2), having independent random lifetimes X 1 and X 2, and suppose a component C having random lifetime X (independent of X 1 and X 2) is available for active redundancy with one of the components. Let U 1 = min(max(X 1, X), X 2) and U 2 = min(X 1, max(X 2, X)), so that U 1 (U 2) denote the lifetime of a system obtained by allocating C to C
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38

POURDARVISH, AHMAD, and ZAHRA RAMEZANI. "COLD STANDBY REDUNDANCY ALLOCATION IN A MULTI-LEVEL SERIES SYSTEM BY MEMETIC ALGORITHM." International Journal of Reliability, Quality and Safety Engineering 20, no. 03 (2013): 1340007. http://dx.doi.org/10.1142/s021853931340007x.

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Reliability improvement problems have much importance in various engineering systems. Real-world engineering systems contain multiple levels. So, a redundancy allocation problem (RAP) is an efficient method to improve the reliability. Different from existing approaches that consider either hot or cold standby redundancy for a component, our approach considers a multi-level cold standby redundancy allocation problem (MLCSRAP). In other words, MLCSRAP is considered for the module and component levels, simultaneously. The units are duplicated by cold standby redundant units. An optimization solut
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39

Ma, Shugen, and Dragomir N. Nenchev. "Real-Time Dynamic Redundancy Control of Redundant Manipulators." Journal of the Robotics Society of Japan 13, no. 5 (1995): 704–10. http://dx.doi.org/10.7210/jrsj.13.704.

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Hung, Min‐Hsiung, and Jen‐Kuei Ting. "A novel redundancy index for kinematically redundant manipulators." Journal of the Chinese Institute of Engineers 30, no. 1 (2007): 77–90. http://dx.doi.org/10.1080/02533839.2007.9671232.

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41

Wieringa, Mark. "The use of redundancy in interferometry – a comparison of redundancy and selfcal." International Astronomical Union Colloquium 131 (1991): 192–96. http://dx.doi.org/10.1017/s0252921100013294.

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AbstractMany synthesis arrays currently in use have at least a few redundant baselines which can be used to derive model-independent telescope corrections. We discuss the relative merits of redundancy-based versus standard selfcalibration methods with respect to sensitivity to noise and interference. We then derive an approach to optimally combine the two methods for partially redundant arrays
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Singh, Puneet, Sumitash Jana, Ashitava Ghosal, and Aditya Murthy. "Exploration of joint redundancy but not task space variability facilitates supervised motor learning." Proceedings of the National Academy of Sciences 113, no. 50 (2016): 14414–19. http://dx.doi.org/10.1073/pnas.1613383113.

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The number of joints and muscles in a human arm is more than what is required for reaching to a desired point in 3D space. Although previous studies have emphasized how such redundancy and the associated flexibility may play an important role in path planning, control of noise, and optimization of motion, whether and how redundancy might promote motor learning has not been investigated. In this work, we quantify redundancy space and investigate its significance and effect on motor learning. We propose that a larger redundancy space leads to faster learning across subjects. We observed this pat
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Grishin, Vyacheslav, and Trong Vu. "Research methods to improve reliability of passive redundant control subsystems of aircraft with due consideration of tolerances." Vestnik of Astrakhan State Technical University. Series: Management, computer science and informatics 2020, no. 1 (2020): 18–28. http://dx.doi.org/10.24143/2072-9502-2020-1-18-28.

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The paper studies the reliability of passively redundant subsystems of aircraft, taking into account tolerances for a decrease in their output parameters in case of sudden component failures. The influence of the reliability values of elements, tolerances of two levels and the redundancy ratio 
 on the reliability of passively redundant subsystems as a whole have been investigated; the examples of such subsystems have been given. There have been presented the results of analysis 
 of the aircraft subsystems features with allowance for tolerances. First of all, these include the avail
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Kelkinnama, Maryam. "Stochastic Comparisons Between Coherent Systems with Active Redundancies Under Proportional Hazards and Reversed Hazards Models." International Journal of Reliability, Quality and Safety Engineering 28, no. 01 (2020): 2150007. http://dx.doi.org/10.1142/s0218539321500078.

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This paper is concerned with the problem of stochastic comparisons between the lifetimes of two coherent systems with active redundancy. For this purpose, we consider both the active redundancy at the system level and the redundancy at the component level. We assume that the original components are identically distributed and possibly dependent. It is also assumed that for each component, there are [Formula: see text] redundant components with possibly different lifetime distributions which follow the proportional hazards (reversed hazards) model. Under some conditions on the domination functi
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Liu, Wenjun, Yan Chen, Genxu Chen, Bicheng Xu, and Yaoqiang Wang. "Diode Clamped Shared Redundancy Topology for Middle Arm Reuse MMC." Journal of Physics: Conference Series 3012, no. 1 (2025): 012075. https://doi.org/10.1088/1742-6596/3012/1/012075.

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Abstract Given the significant quantity of submodules (SMs) employed in modular multilevel converters (MMCs), a lightweight MMC named CM-MMC (Capacitor multiplexing MMC) is proposed in this paper that can cut down SM count by 25% by arm reuse, significantly reducing system costs while ensuring efficient operation and DC fault current interruption capability. However, its increased bridge arm number may lead to increased redundancy cost since enough redundant SMs must be equipped for each bridge arm. Enhancing the CM-MMC’s reliability while reducing the redundancy cost, an innovative redundancy
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46

Janda, Laura A., and Robert J. Reynolds. "Construal vs. redundancy: Russian aspect in context." Cognitive Linguistics 30, no. 3 (2019): 467–97. http://dx.doi.org/10.1515/cog-2017-0084.

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AbstractThe relationship between construal and redundancy has not been previously explored empirically. Russian aspect allows speakers to construe situations as either Perfective or Imperfective, but it is not clear to what extent aspect is determined by context and therefore redundant. We investigate the relationship between redundancy and open construal by surveying 501 native Russian speakers who rated the acceptability of both Perfective and Imperfective verb forms in complete extensive authentic contexts. We find that aspect is largely redundant in 81% of uses, and in 17% of contexts aspe
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Lee, Raymond M. "Redundancy, Labour Markets and Informal Relations." Sociological Review 33, no. 3 (1985): 469–94. http://dx.doi.org/10.1111/j.1467-954x.1985.tb02436.x.

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As a result of its ‘slimline’ plan put into effect in May 1980, the British Steel Corporation made nearly 6,000 workers redundant from its Abbey Works in Port Talbot. The relationship between redundancies at the plant, the labour market experiences of those made redundant and the way in which the two are mediated by informal relational structures is examined. It is argued (a) that the labour market chances of those made redundant were structured by the character of the redundancy process which made certain kinds of worker vulnerable to selection for redundancy; and (b) that the operation of th
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Ding, M. Z., C. J. Ong, and A. N. Poo. "Resolution of redundant manipulators via distance optimization." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 214, no. 8 (2000): 1037–47. http://dx.doi.org/10.1243/0954406001523506.

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Redundant manipulators are useful in practice as they have freedom in addition to that needed for a specific end-effector position. This additional freedom has to be properly resolved, and such redundancy resolution problems have been actively studied over the past decade. The most common scheme for redundancy resolution is achieved at the joint velocity level and does not take into account the presence of obstacles. This work presents a new scheme for redundancy resolution based on maximizing the shortest distance to obstacles. The aim is to resolve the redundancy by reconfiguring the robot t
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Gonçalves-Coelho, António, Gabriela Neştian, Miguel Cavique, and António Mourão. "Some Peculiarities of the Redundant Design Solutions." Advanced Materials Research 837 (November 2013): 49–54. http://dx.doi.org/10.4028/www.scientific.net/amr.837.49.

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In common speech, the term redundant is used to label superfluous repetitions that as a rule should be avoided. Nevertheless, redundancy is a linguistic tool that can play a remarkable role in the communication of complex thoughts in both the vernacular and the erudite talking or writing, which includes the field of engineering design. In the Axiomatic Design (AD) point of view, redundancy may increase the complexity of the design solutions (which is measured through their information content), but does not necessarily entail the breach of the ADs independence axiom. Hence, redundant solutions
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HIRANO, SHOJI, NAOTAKE KAMIURA, NOBUYUKI MATSUI, and YUTAKA HATA. "HIPPOCAMPUS EXTRACTION BASED ON PARALLEL MULTISCALE STRUCTURE MATCHING." International Journal of Pattern Recognition and Artificial Intelligence 14, no. 04 (2000): 427–39. http://dx.doi.org/10.1142/s0218001400000283.

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This paper proposes a method for extracting the human hippocampus based on multiscale structure matching scheme. Focusing on the feature that an overextraction occurs on anatomically specific place, the method detects the redundancy by comparing with given desired models. Since each of the desired models has information about locations of their redundant segments, the place of corresponding redundancy can be specified on the overextracted object. Then, subtle intensity difference around their connecting place is investigated to separate the hippocampus and redundancy. The matching process can
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