CGA

(redirected from Conjugate gradient algorithm)
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AcronymDefinition
CGAColor Graphics Adapter (320 by 200 pixels, 4 colors; 1.60:1 or 640 by 200 pixels, 2 colors; 3.20:1)
CGACommon Ground Alliance (Alexandria, Virginia)
CGACertified General Accountant
CGACompressed Gas Association
CGAComputer Graphics and Applications
CGACentre de Gestion Agréé (French: Chartered Management Center)
CGAConnecticut General Assembly
CGACharitable Gift Annuity
CGACoast Guard Academy
CGAConcours Général Agricole (French: General Agricultural Competition; est. 1870)
CGACryptographically Generated Addresses (Name Space; IANA)
CGACoast Guard Approved (US Coast Guard)
CGACompact Genetic Algorithm (evolutionary computation)
CGAChromogranin A (glycoprotein; aka Secretory Protein-I)
CGACanadian Gas Association
CGACentricstor Grid Architecture
CGACryptographically Generated Address
CGAComputer Graphics Architecture
CGAColour Graphics Adapter
CGACenter for Geographic Analysis (Harvard University; Cambridge, MA)
CGAColor Graphics Adaptor (software)
CGAComprehensive Geriatric Assessment
CGACaixa Geral de Aposentações (Portuguese civil servant pension fund)
CGACommon Grant Application (various organizations)
CGACasual Games Association
CGACalifornia Grocers Association
CGACylinder Gas Audit (various locations)
CGACitrus Growers Association
CGACompagnie Générale d'Affacturage (French business financing company)
CGACertified General Appraiser (real estate; various locations)
CGAConditions Générales d'Abonnement (French: Terms of Subscription; various companies)
CGACornerstone Government Affairs (Washington, DC)
CGACentro de Gestión Aeroportuaria (Spanish: Airport Management Center)
CGAContract and Grant Administration (Michigan State University)
CGAColumn Grid Array
CGAContrôle Général des Armées (French: General Control of the Armed Forces)
CGACoordination des Groupes Anarchistes (French: Anarchist Group Coordination)
CGAConditions Générales d'Achat (French: Terms of Sale; various companies)
CGAColor Graphics Array (320 by 200 pixels, 4 colors; 1.60:1 or 640 by 200 pixels, 2 colors; 3.20:1)
CGAChinese Gymnastics Association
CGACommittee on Government Assurances (India)
CGAClinical Gait Analysis
CGACorn Growers Association
CGACentro de Gestión Avanzado (Spanish)
CGACraig, AK, USA (Airport Code)
CGACercle Généalogique d'Alsace (French: Alsace Genealogy Circle; Alsace, France; est. 1967)
CGACarrier Group Alarm
CGAClerkenwell Green Association (London)
CGAConjugate Gradient Algorithm
CGACulver Girls Academy
CGACran-Gevrier Animation (French education association)
CGACancer Genome Atlas
CGACertified Governmental Accountant
CGACertified Graphoanalyst
CGACumulative Grade Average
CGAContact Guard Assist
CGACanadian Gelbvieh Association (Calgary, Alberta, Canada)
CGACongo Global Action (Washington, DC)
CGACoût Global Actualisé (French: Total Escalated Cost)
CGAConfederation of St. Gabriel's (Thailand)
CGAChorionic Gonadotropin, Alpha Chain
CGAClassic Gaming Archive
CGAChristian Golfers Association
CGAChubu Golf Association (Japan)
CGACurrency Grading and Authentication (currency collecing)
CGAClimbing Gym Association
CGACertified Gamers Alliance (cross platform gaming community)
CGAConventional Genetic Algorithm
CGAConstrained Genetic Algorithm
CGACriminals & Gangmembers Anonymous
CGACzech Gas Association (formerly Czech Gas and Oil Association)
CGAControlled Gain Amplifier
CGAConfigurable Gate Array
CGAConcord Grape Association
CGACredit Guarantee Assurance
CGACentral of Georgia Railway Company
CGACornhole Game Association
CGACongressional Golfers Association
CGAConditional Gaussian Approximation
CGAComputer Graphics Architect
CGACaractérisation et Gestion de l'Atmosphère (French: Characterization and Management of the Atmosphere; degree program; University of Lyon; Lyon, France)
CGACompressed Air Association
CGACorporate Governance Authority
CGAChase-GMD (Generalized Minimum Distance) Algorithm (Generalized Minimum Distance)
CGACommon Ground Architecture
CGAChiba City Greenery Association (Japan)
CGACalvin, Giordano and Associates, Inc (Fort Lauderdale, FL)
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References in periodicals archive ?
Algorithm 1: Conjugate gradient algorithm. (1) function CG (A, b, [x.sub.0], n) Input: A [member of] [R.sup.nxn], b [member of] [R.sup.n] [x.sub.0] [member of] [R.sup.n] Output: [x.sub.0] [member of] [R.sup.n] (2) [p.sub.0] = [r.sub.0] = b - A[x.sub.0] (3) i = 0 (4) repeat (5) [[alpha].sub.i] = [r.sup.T.sub.i][r.sub.i] / ([p.sub.i]).sup.T] (A[p.sub.i]) (6) [x.sub.i+1] = [x.sub.i] + ([[alpha].sub.i] x [p.sub.i]) (7) [r.sub.i+1] = [r.sub.i] - ([[alpha].sub.i] x A[p.sub.i]) (8) [[beta].sub.i] = [r.sup.T.sub.i+1][r.sub.i+1] / [r.sup.T.sub.i][r.sub.i] (9) [p.sub.i+1] = [r.sub.i+1] + [[beta].sub.i][p.sub.i] (10) i = i + 1 (11) until ([r.sub.i] is sufficiently small) (12) x = [x.sub.0] Algorithm 2: Interval modified conjugate gradient algorithm.
% Average Differences Result Metrics LM 5neurons LM 10neuron BR 5neurons BR 10neurons V 1,66 0,50 0,39 0,09 E 25,19 4,16 3,45 1,08 H 5,03 1,33 1,09 0,36 Result Metrics SCG 5neurons SCG 10neurons V 3,51 6,41 E 42,61 253,18 H 10,36 254,53 LM: Levenberg-Marquardt algorithm BR: Bayesian Regularization algorithm SCG: Scaled Conjugate Gradient algorithm Table 2.
Based on Table 1's sixteen kinds of scheme (different parameters set), we compared algorithm A with DY (given by formula (10)) conjugate gradient algorithm based on different initial point for three test problems.
A nonlinear conjugate gradient algorithm with an optimal property and an improved Wolfe line search.
In order to attempt to minimize the error E as a function of w using the scaled conjugate gradient algorithm as described above, the capability must exist for the efficient computation of the gradient E'(w) of E at w and multiplication of a vector by the Hessian matrix E"(w) of E at w.
Accelerated scaled memoryless BFGS preconditioned conjugate gradient algorithm for unconstrained optimization.
At PNNL, a parallel version of the conjugate gradient algorithm was developed in a shared-memory form.
A feedforward neural network with sigmoidal activation functions was used with a conjugate gradient algorithm to recognize the complex input-output relation between the paint properties and the formula components.
Below is most of the Solve method found in the HCL_PCG class, which implements the preconditioned conjugate gradient algorithm. It is worth emphasizing the truly generic nature of this code.
At present the hyperparameters of GPR are got by maximizing likelihood function of training samples based on conjugate gradient algorithm. However, this traditional algorithm embodies the disadvantages of too strong dependence of optimization effect on initial value, difficult determination of iteration steps, and easy falling into local optimum.
Therefore, the preconditioned global conjugate gradient algorithm is obtained by applying the preconditioner (4.10) to the normal equations associated with the matrix linear operator defined by (4.11).
Andrei, "A Dai-Yuan conjugate gradient algorithm with sufficient descent and conjugacy conditions for unconstrained optimization," Applied Mathematics Letters, vol.