Ant Algorithms in VS .NET

Drawer QR-Code in VS .NET Ant Algorithms
17 Ant Algorithms
Recognize QR In .NET
Using Barcode Control SDK for .NET framework Control to generate, create, read, scan barcode image in .NET applications.
For the local search process, each ant k of the nl local ants selects a region xi based on the probability i (t) i (t) (1771) pk (t) = i j N k j (t) (t)
Painting QR In .NET
Using Barcode creation for Visual Studio .NET Control to generate, create QR Code ISO/IEC18004 image in .NET framework applications.
which biases towards the good regions The ant then moves a distance away from the selected region, xi , to a new region, xi , using xi = xi + x where xij = ci mi ai (1773) with ci and mi user-de ned parameters, and ai the age of region xi The age of a region indicates the weakness of the corresponding solution If the new position, xi , does not have a better tness than xi , the age of xi is incremented On the other hand, if the new region has a better tness, the position vector of the i-th region is replaced with the new vector xi The direction in which an ant moves remains the same if a region of better tness is found However, if the new region is less t, a new direction is randomly chosen Pheromone is updated by adding an amount to each i proportional to the tness of the corresponding region Other approaches to solving continuous optimization problems can be found in [439, 510, 511, 512, 887] (1772)
Quick Response Code Decoder In Visual Studio .NET
Using Barcode recognizer for .NET Control to read, scan read, scan image in VS .NET applications.
Multi-Objective Optimization
Bar Code Encoder In .NET Framework
Using Barcode printer for VS .NET Control to generate, create bar code image in Visual Studio .NET applications.
One of the rst applications of multiple colony ACO algorithms was to solve multiobjective optimization problems (MOP) This section discusses such algorithms MOPs are solved by assigning to each colony the responsibility of optimizing one of the objectives If nc objectives need to be optimized, a total of nc colonies are used Colonies cooperate to nd a solution that optimizes all objectives by sharing information about the solutions found by each colony Gambardella et al [303] implemented a two-colony system to solve a variant of the vehicle routing problem A local search heuristic is rst used to obtain a feasible solution, x(0), which is then improved by the two colonies, each with respect to a di erent objective Each colony maintains its own pheromone matrix, initialized to have a bias towards the initial solution, x(0) If at any time, t, one of the colonies, Cc , obtains a better solution, then x(t) = xc (t) where xc (t) is the iteration-best solution of colony Cc At this point the colonies are reinitialized such that pheromone concentrations are biased towards the new best solution Ippolito et al [404] use non-dominated sorting to implement sharing between colonies through local and global pheromone updates Each colony implements an ACS algorithm to optimize one of the objectives Separate pheromone matrices are maintained
Decoding Barcode In .NET Framework
Using Barcode recognizer for .NET framework Control to read, scan read, scan image in Visual Studio .NET applications.
174 Advanced Topics by the di erent colonies Both local and global updates are based on ij (t + 1) = ij (t) + 0 fij (t)
QR Code 2d Barcode Maker In C#
Using Barcode creation for VS .NET Control to generate, create QR Code JIS X 0510 image in Visual Studio .NET applications.
(1774)
QR Code Creator In Visual Studio .NET
Using Barcode generator for ASP.NET Control to generate, create Quick Response Code image in ASP.NET applications.
where (0, 1), and 0 is the initial pheromone on link (i, j) (all ij (0) = 0 ); fij (t) is referred to as a tness value, whose calculation depends on whether equation (1774) is used for local or global updates The tness value is calculated on the basis of a sharing mechanism, performed before applying the pheromone updates The purpose of the sharing mechanism is to exchange information between the di erent colonies Two sharing mechanisms are employed, namely local sharing and global sharing: Local sharing: After each next move has been selected (ie the next node is added to the current path to form a new partial solution), local sharing is applied For this purpose, non-dominated sorting (refer to Section 963 and Algorithm 911) is used to rank all partial solutions in classes of non-dominance Each non-dominance class forms a Pareto front, PF p containing np = |PF p | k non-dominated solutions The sharing mechanism assigns a tness value fp to each solution in Pareto front PF p , as summarized in Algorithm 179 For the purposes of this algorithm, let xk denote the solution vector that corresponds to the partial path constructed by ant k at the current time step Then, dab represents the normalized Euclidean distance between solution vectors xa and xb , calculated as
Denso QR Bar Code Drawer In Visual Basic .NET
Using Barcode generation for .NET framework Control to generate, create QR Code image in Visual Studio .NET applications.
Creating EAN 13 In .NET
Using Barcode creator for .NET framework Control to generate, create European Article Number 13 image in VS .NET applications.
Barcode Creation In .NET Framework
Using Barcode printer for VS .NET Control to generate, create barcode image in Visual Studio .NET applications.
Generating GS1-128 In VS .NET
Using Barcode encoder for ASP.NET Control to generate, create GS1-128 image in ASP.NET applications.
Generate Barcode In C#
Using Barcode drawer for VS .NET Control to generate, create bar code image in VS .NET applications.
Making USS-128 In Java
Using Barcode creation for Java Control to generate, create UCC.EAN - 128 image in Java applications.
Make Bar Code In Java
Using Barcode maker for Java Control to generate, create barcode image in Java applications.