@article{Si:2006:BMC, title = {{QSAR} study of 1,4-dihydropyridine calcium channel antagonists based on gene expression programming}, author = {Hong Zong Si and Tao Wang and Ke Jun Zhang and Zhi De Hu and Bo Tao Fan}, journal = {Bioorganic \& Medicinal Chemistry}, month = {15 July}, number = 14, pages = {4834--4841}, volume = 14, year = 2006, doi = {doi:10.1016/j.bmc.2006.03.019}, abstract = {The gene expression programming, a novel machine learning algorithm, is used to develop quantitative model as a potential screening mechanism for a series of 1,4-dihydropyridine calcium channel antagonists for the first time. The heuristic method was used to search the descriptor space and select the descriptors responsible for activity. A nonlinear, six-descriptor model based on gene expression programming with mean-square errors 0.19 was set up with a predicted correlation coefficient (R2) 0.92. This paper provides a new and effective method for drug design and screening. Graphical abstract The log (1/IC50) for 45 1,4-dihydropyridines was modelled using the descriptors calculated from the molecular structure along with a quantitative structure\u2013activity relationship (QSAR) technique. The heuristic method (HM) and gene expression programming (GEP) were used to construct the linear and nonlinear prediction models, leading to a good prediction.}, biburl = {http://www.bibsonomy.org/bibtex/268bfa0bc6e1d96ad3c70488119d68fc1/brazovayeye}, keywords = {Programming, QSAR, Gene Calcium programming, genetic Expression antagonists algorithms, channel} } @article{Salcedo-Sanz:2005:GPEM, title = {Meta-Heuristic Algorithms for {FPGA} Segmented Channel Routing Problems with Non-standard Cost Functions}, author = {Sancho Salcedo-Sanz and Yong Xu and Xin Yao}, journal = {Genetic Programming and Evolvable Machines}, month = {December}, number = 4, pages = {359--379}, volume = 6, year = 2005, issn = {1389-2576}, doi = {doi:10.1007/s10710-005-3295-z}, size = {21 pages}, abstract = {we present three meta-heuristic approaches for FPGA segmented channel routing problems (FSCRPs) with a new cost function in which the cost of each assignment is not known in advance, and the cost of a solution only can be obtained from entire feasible assignments. Previous approaches to FSCPs cannot be applied to this kind of cost functions, and meta-heuristics are a good option to tackle the problem. We present two hybrid algorithms which use a Hopfield neural network to solve the problem's constraints, mixed with a Genetic Algorithm (GA) and a Simulated Annealing (SA). The third approach is a GA which manages the problem's constraints with a penalty function. We provide a complete analysis of the three metaheuristics, by tested them in several FSCRP instances, and comparing their performance and suitability to solve the FSCRP.}, biburl = {http://www.bibsonomy.org/bibtex/2f2d0f72766685f051d19c41f65ab2c4f/brazovayeye}, keywords = {simulated architecture, hardware, FPGAs, genetic segmented hybrid evolvable algorithms, channel annealing} }