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Complex D-optimal designs

J.H.E. Cohn
1996 Discrete Mathematics  
design.  ...  designs demonstrated.  ...  The search for D-optimal designs of order n where n-2(mod 4) has mainly concentrated on seeking matrices G of the form -B' A' ' where A and B are circulant matrices.  ... 
doi:10.1016/0012-365x(96)00035-0 fatcat:lh6tce6dlvdirjrj5rvcrb5e2q

D-optimal designs for complex Ornstein–Uhlenbeck processes

Sándor Baran, Csilla Szák-Kocsis, Milan Stehlík
2018 Journal of Statistical Planning and Inference  
This paper studies the properties of D-optimal designs for estimating the parameters of a complex OU process with a trend.  ...  , these optimal designs are equidistant.  ...  D-optimal designs Suppose the complex process Z(t) is observed in design points 0 ≤ t 1 < t 2 < . . . < t n resulting in the 2n-dimensional real vector Z 1 (t 1 ), Z 2 (t 1 ), Z 1 (t 2 ), Z 2 (t 2 ), .  ... 
doi:10.1016/j.jspi.2017.12.006 fatcat:pvbxkgiv7vcvrj2qr54z6aretu

Optimization of self-microemulsifying drug delivery system for phospholipid complex of telmisartan using D-optimal mixture design

Ho Yong Son, Bo Ram Chae, Ji Yeh Choi, Dong Jun Shin, Yoon Tae Goo, Eun Seok Lee, Tae Hoon Kang, Chang Hyun Kim, Ho Yub Yoon, Young Wook Choi
2018 PLoS ONE  
TPC-loaded self-microemulsifying drug delivery system (SMEDDS) formulation was optimized using the D-optimal mixture design with the composition of 14% Capryol 90 (oil; X1), 59.9% tween 80 (surfactant;  ...  Thus, we suggested that phospholipid complex formation and SMEDDS formulation using the experimental design method might be a promising approach to enhance the dissolution of poorly soluble drugs.  ...  Experimental design for optimizing TPC-loaded SMEDDS The D-optimal mixture design was used to optimize the composition of TPC-loaded SMEDDS formulation using the Minitab software (ver. 17.0; Minitab Inc  ... 
doi:10.1371/journal.pone.0208339 pmid:30517187 pmcid:PMC6281252 fatcat:go5qquanh5fkdbf3f7yx4333vq

A comparative study of several metaheuristic algorithms for optimizing complex 3-D well-path designs

Rassoul Khosravanian, Vahid Mansouri, David A. Wood, Masood Reza Alipour
2018 Journal of Petroleum Exploration and Production Technology  
A primary aim of the study is to derive less time-consuming algorithms that can be deployed to solve a range of complex well-path design challenges.  ...  Considering the importance of cost reduction in the petroleum industry, especially in drilling operations, this study focused on the minimization of the well-path length, for complex well designs, compares  ...  All the above-mentioned evolutionary optimization algorithms have been coded in MATLAB to solve 3-D well-path design optimization problems.  ... 
doi:10.1007/s13202-018-0447-2 fatcat:eh6b2l7qebb2zpxi46fjtihdte

Margin Allocation and Tradeoff in Complex Systems Design and Optimization

Marin D. Guenov, Xin Chen, Arturo Molina-Cristóbal, Atif Riaz, Albert S. J. van Heerden, Mattia Padulo
2018 AIAA Journal  
It is bi-directionally linked to the design space, to enable the designer to understand how assigning margins on certain parameters limits the allowable margins that can be assigned to other parameters  ...  It incorporates the margin space concept as well as enablers, including interactive visualization techniques, which can aide the designer to explore the margin and design spaces dynamically, as well as  ...  This software tool contains inbuilt enablers for performing optimization, design space exploration, as well as deterministic and robust design studies.  ... 
doi:10.2514/1.j056357 fatcat:2p3r2gfwmfawxefqdj4ilkkdq4

Low-complexity digital filter geometry for spherical coded imaging systems

Guotong Feng, Mohammed Shoaib, M. D. Robinson, R. John Koshel, G. Groot Gregory
2009 Novel Optical Systems Design and Optimization XII  
Recent research in the area of electro-optical system design identified the benefits of spherical aberration for extending the depth-of-field of electro-optical imaging systems.  ...  Previous research, however, requires complex digital postprocessing algorithms severely limiting its applicability to only expensive systems.  ...  We introduced a class of electro-optical spherical coded imaging systems that achieve high-quality imaging performance using low-complexity digital FIR sharpening filters.  ... 
doi:10.1117/12.826745 fatcat:yk4thkxcrjesbnfy53qqrazsue

Complex Method Mixed with PSO Applying to Optimization Design of Bridge Crane Girder

Yan He, Zongyan Wang, J. Detand, D. Ruxu, J.A. Self, J. Gunsing
2017 MATEC Web of Conferences  
In engineer design, basic complex method has not enough global search ability for the nonlinear optimization problem, so it mixed with particle swarm optimization (PSO) has been presented in the paper,  ...  Then complex method mixed with PSO is used to solve optimization design problem of cane box girder from constrained optimization studying approach, and its optimal results have achieved the goal of lightweight  ...  constraint 0 5 ) ( 3 5 d x x g (15) 0 5 ) ( 4 6 d x x g (16) 4 Realization of optimization design Parameters Setting (1) Parameters setting in the particle swarm optimization algorithm Set the various  ... 
doi:10.1051/matecconf/201710402010 fatcat:2cofp7nj2jekfigmk3ukuz3hka

Low-complexity optimization algorithm for ground network design in optical satellite networks

Christos N. Efrem, Nikolaos K. Lyras, Charilaos I. Kourogiorgas, Athanasios D. Panagopoulos, Pantelis-Daniel Arapoglou, Zoran Sodnik, Bruno Cugny, Nikos Karafolas
2021 International Conference on Space Optics — ICSO 2020  
In this paper, a low-complexity optimization algorithm for ground network design in optical geostationary (GEO) satellite systems is presented, taking into account the spatial correlation between sites  ...  As a consequence, the interest in ground network optimization is rapidly increasing with the aim to guarantee a given service availability.  ...  An efficient optimization algorithm has also been developed to find near-optimal solutions with affordable complexity.  ... 
doi:10.1117/12.2600010 fatcat:kngn75fwljefrjmkqoi2egd6u4

Applying designed experiments to optimize the performance of genetic algorithms used for scheduling complex products in the capital goods industry

P. Pongcharoen, D. J. Stewardson, C. Hicks, P. M. Braiden
2001 Journal of Applied Statistics  
Owing to the complex nature of these problems it is often impossible to search the whole problem space and an optimal solution cannot, therefore, be guaranteed.  ...  Pongcharoen et al. within a half Latin-square design. The second stage was a half-fraction design with a reduced number of GA operators. The results are compared with previous studies.  ...  The probability of survival, and the number of replicates of a chromosome, is determined from its ® tness using the roulette wheel (Goldberg 1989 2OAS A D C B 3OAS B A D C 2ORS C B A D 3ORS D C B  ... 
doi:10.1080/02664760120034162 fatcat:vo4bwbgksrcr3pbkr2jfwzfrgi

Towards a design optimization method for reducing the mechanical complexity of underactuated robotic hands

Frank L. Hammond, Jonathan Weisz, Andres A. de la Llera Kurth, Peter K. Allen, Robert D. Howe
2012 2012 IEEE International Conference on Robotics and Automation  
This paper presents a computational framework for reducing the mechanical complexity of robotic hand actuation topologies without significantly decreasing grasp robustness.  ...  Reduced actuation requirements generally serve to decrease design cost and improve grasp planning efficiency, but overzealous simplification of an actuation topology, coupled with insufficient tuning of  ...  D. Planning and Optimizing Grasps Grasp planning and optimization for high dimensional systems such as the 24 DOF robotic hand is challenging for several reasons.  ... 
doi:10.1109/icra.2012.6225010 dblp:conf/icra/HammondWKAH12 fatcat:s7huabpdtjd33eqtwmruftnqxa

Characterization, design, and optimization of a two-pass twisted nematic liquid crystal spatial light modulator system for arbitrary complex modulation

A. J. Macfaden, T. D. Wilkinson
2017 Optical Society of America. Journal A: Optics, Image Science, and Vision  
Finally, an in situ optimization technique that corrects states by applying a translation in the complex plane is demonstrated.  ...  This characterization data is then used to design appropriate polarizer configurations to implement arbitrary complex modulation schemes (albeit without 100% efficiency).  ...  The result of this optimization of the level-zero state is shown in the context of the other uncorrected levels in Fig. 6(d) .  ... 
doi:10.1364/josaa.34.000161 pmid:28157842 fatcat:obffvv5dwbhaxlztbqdeuvxbpm

OXIDATION-RESISTANCE NANOREINFORCED PERICLASECARBONACEOUS (PC) REFRACTORIES. PART 5. THE AGGREGATE'S GRAIN COMPOSITION OPTIMIZATION BY MEANS OF BOTH THE SIMPLEX-LATTICE DESIGN AND THE BATCH'S COMPONENTS COMPLEX MODIFICATION

O. N. Borisenko, G. D. Semchenko, V. V. Povshuk, O. A. Vasyuk
2017 NOVYE OGNEUPORY (NEW REFRACTORIES)  
doi:10.17073/1683-4518-2017-9-32-35 fatcat:s6tkrbpwxjhfxhlwelob2cgdkq

Fundamental Rate-Reliability-Complexity Limits in Outage Limited MIMO Communications [article]

Petros Elia, Joakim Jalden
2010 arXiv   pre-print
The work then proceeds to explicitly identify encoder-decoder designs and policies, that meet this optimal tradeoff.  ...  In practice, the limits aim to meaningfully quantify different pertinent measures, such as the optimal rate-reliability capabilities per unit complexity and power, the optimal diversity gains per complexity  ...  DMT optimal decoding of any lattice design X Λ , and does so with worst-case complexity of O(log ρ).  ... 
arXiv:1006.4524v1 fatcat:76mdnqnvbzhrposhprgzcfpsm4

Optimal design in collaborative design network

Y. Xiang, J. Chen, W. S. Havens
2005 Proceedings of the fourth international joint conference on Autonomous agents and multiagent systems - AAMAS '05  
Based on the analysis, we proposes a set of algorithms that allow agents to produce an overall optimal design by autonomous local evaluation of local designs.  ...  We show that these algorithms reduce the complexity exponentially from that of an exhaustive centralized design.  ...  Given a CDN, optimal design amounts to finding an overall design d * that maximizes EU (d) = i ki EUi(d).  ... 
doi:10.1145/1082473.1082510 dblp:conf/atal/XiangCH05 fatcat:asuimq3bbrbmtj6ryonqhew2eq

Adaptive surrogate model-based optimization framework applied to battery pack design

Huanwei Xu, Liangwen Liu, Miao Zhang
2020 Materials & design  
Surrogate model-based optimization methods have proven to be effective for solving implicit, complex, and time-consuming optimization problems [1] , such as aerodynamically designing aerospace systems  ...  Taking advantage of the good searching ability of the complex method (CM) in the design space, useful optimization information is extracted in the optimization process, which can effectively reduce the  ...  lower distance limit d according to the design space size (d is the distance between the replacement point and the worst point).  ... 
doi:10.1016/j.matdes.2020.108938 fatcat:7zokh5kmdrafxfhzjqymnxsiyi
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