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Efficient approximation of product distributions

Guy Even, Oded Goldreich, Michael Luby, Noam Nisan, Boban Veli?kovi?
<span title="">1998</span> <i title="Wiley"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/wtbq2zeu3fctdhu67pe2vn6hti" style="color: black;">Random structures &amp; algorithms (Print)</a> </i> &nbsp;
We describe efficient constructions of small probability spaces that approximate the joint distribution of general random variables.  ...  Previous work on efficient constructions concentrate on approximations of the joint distribution for the special case of identical, uniformly distributed random variables.  ...  Definitions of Approximation Throughout the paper we consider the approximation of product distributions; Ž . namely, distributions that are the product of many say, n independent distributions.  ... 
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<a target="_blank" rel="noopener" href="https://web.archive.org/web/20170809113151/https://www.cse.buffalo.edu//~hungngo/classes/2011/709/papers/Product-Dist.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/51/c9/51c9da3da862e5c461569ad9db01a0395e273d7a.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1002/(sici)1098-2418(199808)13:1&lt;1::aid-rsa1&gt;3.0.co;2-w"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> wiley.com </button> </a>

Analytical determination of the electromechanical system starting process efficiency index with regard to the distributed nature of input products consumption

Valerii Tytiuk
<span title="2016-12-14">2016</span> <i title="Private Company Technology Center"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/l2suv73qxjf5jk3mi4shll66pm" style="color: black;">Eastern-European Journal of Enterprise Technologies</a> </i> &nbsp;
1 (t) distribution of input products.  ...  This idea of the starting process is approximate, since the consumption of input products in the starting process is continuous and distributed over time.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.15587/1729-4061.2016.83203">doi:10.15587/1729-4061.2016.83203</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/awgqbwcn4jamhn224gybsiyj2q">fatcat:awgqbwcn4jamhn224gybsiyj2q</a> </span>
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Page 203 of Geographical Analysis Vol. 34, Issue 3 [page]

<span title="">2002</span> <i title="John Wiley &amp; Sons, Inc."> <a target="_blank" rel="noopener" href="https://archive.org/details/pub_geographical-analysis" style="color: black;">Geographical Analysis </a> </i> &nbsp;
(see Robins, Van der Vaart, and Ventura 2000). 3 The Numerical Efficiency of the Saddlepoint Approximation for Local Moran’s 1's Reference Distribution The question remaining is, are there any computational  ...  spectra of eigenvalues is by far more efficient than calculating numerically the matrix products M - V.- M and their spectra of eigenvalues.  ... 
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A robust approximation for setting target inventory levels in a constrained production environment

John Betts
<span title="">2011</span> <i title="Elsevier BV"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/cx3f4s3qmfe6bg4qvuy2cxezyu" style="color: black;">Procedia Computer Science</a> </i> &nbsp;
The model derives the inventory shortfall distribution by simulating the unconstrained inventory process, from which the parameters of a continuous approximation are estimated.  ...  It is thus an efficient alternative to conventional simulation-based optimization. By simulating the shortfall directly, the model makes no assumptions about the form of the demand distribution.  ...  aid in the efficient computation of x .  ... 
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Economic feasibility of an energy efficiency project for a steam distribution system in a chemical industry

Flavia Melo Menezes, Maria Fátima Góes, Ricardo Araújo Kalid, Armando Hirohumi Tanimoto, José Celio Andrade
<span title="2017-12-01">2017</span> <i title="Independent Journal of Management and Production"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/rxtx53lrkzbqpa2zqi2gfqflu4" style="color: black;">Independent Journal of Management &amp; Production</a> </i> &nbsp;
Most of the energy demand in this sector is associated with steam systems, where 1/3 of the energy efficiency opportunities are located in its distribution system.  ...  Given this context, the purpose of this paper is to determine the economic feasibility of an energy efficiency project for a steam distribution system in a chemical industry, located in the metropolitan  ...  Thus, from scaffolding INDEPENDENT JOURNAL OF MANAGEMENT & PRODUCTION (IJM&P) - Energy losses of the steam distribution system were estimated at approximately 8.6 thousand tons of steam in the first  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.14807/ijmp.v8i4.672">doi:10.14807/ijmp.v8i4.672</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/2epymb7kqjbepddx2kh5raqupm">fatcat:2epymb7kqjbepddx2kh5raqupm</a> </span>
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Page 189 of Physical Review Vol. 81, Issue 2 [page]

<span title="1951-01-15">1951</span> <i title="American Institute of Physics"> <a target="_blank" rel="noopener" href="https://archive.org/details/pub_physical-review" style="color: black;">Physical Review </a> </i> &nbsp;
Instead of using these experiments to calcu- late the internal momentum distribution, we prefer to check our theory by making use of an approximate distribution available from deuteron pick-up reactions  ...  Excellent agreement is obtained for the meson energy spectrum at 90° and the decrease in efficiency of meson production compared to free protons as targets.  ... 
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METHODOLOGY OF THE EFFICIENCY FACTORS OF FINE GRAINED CLAYISH SUSPENSIONS SEPARATION IN MULTILEVELED HYDROCYCLONE SYSTEMS / METODYKA OCENY DOKŁADNOŚCI ROZDZIAŁU DROBNO UZIARNIONYCH ZAWIESIN ILASTYCH W WIELOSTOPNIOWYCH UKŁADACH HYDROCYKLONÓW

Alicja Nowak, Agnieszka Surowiak
<span title="2013-01-01">2013</span> <i title="Walter de Gruyter GmbH"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/4rnm7cbaj5gs5gkznoy2ndgboe" style="color: black;">Archives of Mining Sciences</a> </i> &nbsp;
The effects of classification as separation efficiency, yields and losses of finest fractions in separation products, sizes of given separation particles and factors of separation efficiency were compared  ...  To determine the characteristics of separation the approximation functions were used to approximate the separation curves.  ...  Because it was impossible to get the satisfying approximation by the function representing the normal distribution function as the approximating function the Weibull distribution function was accepted  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.2478/amsc-2013-0082">doi:10.2478/amsc-2013-0082</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/rc6do475zffsxclufzrmw6g4fe">fatcat:rc6do475zffsxclufzrmw6g4fe</a> </span>
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Page 523 of Economic Development and Cultural Change Vol. 38, Issue 3 [page]

<span title="">1990</span> <i title="University of Chicago, acting through its Press"> <a target="_blank" rel="noopener" href="https://archive.org/details/pub_economic-development-and-cultural-change" style="color: black;">Economic Development and Cultural Change </a> </i> &nbsp;
These approximations depend on the moments of the random variables in the model.  ...  Under favorable production conditions, yield is likely to be above average, so the mass of the yield distribution is concentrated near its upper limit, creating a negatively skewed distribution.  ... 
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Page 1242 of The Journal of the Operational Research Society Vol. 59, Issue 9 [page]

<span title="">2008</span> <i title="Palgrave Macmillan"> <a target="_blank" rel="noopener" href="https://archive.org/details/pub_journal-of-the-operational-research-society" style="color: black;">The Journal of the Operational Research Society</a> </i> &nbsp;
Approximation of joint probabilistic constraints using p-efficiency Concept of p-efficiency.  ...  supply chain management setting We now transpose the concept of p-efficiency to the proba- bilistic inventory—productiondistribution planning problem.  ... 
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Variation in Productive Efficiency in French Workers' Cooperatives [chapter]

Jacques Defourny, C. A. Knox Lovell, Aké G. M. N'gbo
<span title="">1992</span> <i title="Springer Netherlands"> International Applications of Productivity and Efficiency Analysis </i> &nbsp;
Abstmct In this study, we explore the distribution of productive efficiency among workers' cooperatives operating in each of four sectors of French manufacturing.  ...  of the degree of worker participation in management, variation in productive efficiency, and an unexplained residual.  ...  Introduction The purpose of this study is to explore the distribution of productive efficiency among workers' cooperatives operating in each of four sectors of French manufacturing.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-94-017-1923-0_7">doi:10.1007/978-94-017-1923-0_7</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/wf5wo5a5hrgsdj4hij3563ywxm">fatcat:wf5wo5a5hrgsdj4hij3563ywxm</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20170818024501/http://orbi.ulg.ac.be/bitstream/2268/90524/1/92-3%20Defourny%20Lovell%20N%27gbo.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/8a/3e/8a3e941c97353e567de896bc907c39866a8ec540.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-94-017-1923-0_7"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> springer.com </button> </a>

Variation in productive efficiency in French workers' cooperatives

Jacques Defourny, C. A. Knox Lovell, Ak� G.M. G. N'gbo
<span title="">1992</span> <i title="Springer Nature"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/idwa5rifnrakbpou7xffv4hzai" style="color: black;">Journal of Productivity Analysis</a> </i> &nbsp;
Abstmct In this study, we explore the distribution of productive efficiency among workers' cooperatives operating in each of four sectors of French manufacturing.  ...  of the degree of worker participation in management, variation in productive efficiency, and an unexplained residual.  ...  Introduction The purpose of this study is to explore the distribution of productive efficiency among workers' cooperatives operating in each of four sectors of French manufacturing.  ... 
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Cost Minimization for Unstable Concurrent Products in Multi-stage Production Line Using Queueing Analysis

Chanintorn Jittawiriyanukoon, Vilasinee Srisarkun
<span title="2020-02-01">2020</span> <i title="International Strategic Management Association"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/seektkkbpja4tokdwe5jhhfveq" style="color: black;">International Journal of Economics and Business Administration</a> </i> &nbsp;
The intention of this article is to evaluate the efficiency of products assembly in the production line.  ...  Experiments of the work based on simulation are compared and validated with results from real approximation.  ...  Acknowledgments: This research and resulting contribution are results of Assumption University of Thailand. The university partially supports financially the publication.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.35808/ijeba/421">doi:10.35808/ijeba/421</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/gg72m2tpgzhz3hlqqqqaujksui">fatcat:gg72m2tpgzhz3hlqqqqaujksui</a> </span>
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A metaheuristic algorithm to solve the selection of transportation channels in supply chain design

Elias Olivares-Benitez, Roger Z. Ríos-Mercado, José Luis González-Velarde
<span title="">2013</span> <i title="Elsevier BV"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/g3swg5xvjjbr3mbsu5d4kdvvoa" style="color: black;">International Journal of Production Economics</a> </i> &nbsp;
An implementation of the classic epsilon-constraint method was used to generate true efficient sets for small instances of the problem, and approximate efficient sets for larger instances.  ...  In the second echelon the distribution centers transport the product to the customers.  ...  K Parameters: CP ijl : cost of transporting one unit of product from plant i to distribution center j using arc l; i ∈ I, j ∈ J, l ∈ LP ij CW jkl : cost of sending one unit of product from distribution  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/j.ijpe.2013.01.017">doi:10.1016/j.ijpe.2013.01.017</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/pxzlaifmfzgqfdxdz6pfied5pq">fatcat:pxzlaifmfzgqfdxdz6pfied5pq</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20200321044755/http://gama.fime.uanl.mx/~roger/work/Papers/paper_ijpe_2013.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/69/72/6972d614d526037176a9e0be2d4566cd5c7307f0.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/j.ijpe.2013.01.017"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> elsevier.com </button> </a>

Minimizing Inventory Costs for Capacity-constrained Production Using a Hybrid Simulation Model

John M. Betts
<span title="">2014</span> <i title="Elsevier BV"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/cx3f4s3qmfe6bg4qvuy2cxezyu" style="color: black;">Procedia Computer Science</a> </i> &nbsp;
The model is based on a single discrete-event simulation of the unconstrained production system, from which an analytical approximation of the inventory shortfall is derived.  ...  By deriving an expression for the shortfall distribution via simulation, no user modelling of the demand distribution or estimation of demand parameters is required.  ...  Modelling the Inventory Shortfall Distribution The inventory shortfall distribution, V , is approximated using a sample taken from a discreteevent simulation of the production-supply process.  ... 
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HEAM: High-Efficiency Approximate Multiplier Optimization for Deep Neural Networks [article]

Su Zheng, Zhen Li, Yao Lu, Jingbo Gao, Jide Zhang, Lingli Wang
<span title="2022-01-25">2022</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>
We propose an optimization method for the automatic design of approximate multipliers, which minimizes the average error according to the operand distributions.  ...  Our multiplier achieves up to 50.24% higher accuracy than the best reproduced approximate multiplier in DNNs, with 15.76% smaller area, 25.05% less power consumption, and 3.50% shorter delay.  ...  CONCLUSION We propose an optimization method to design a high-efficiency approximate multiplier, which minimizes the average error according to the probability distributions of operands in the target application  ... 
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