?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=http%3A%2F%2Fwww.eledia.org%2Fstudents-reports%2F418%2F&rft.title=Parallel+GA-based+Approach+for+Microwave+Imaging+Applications&rft.creator=Massa%2C+Andrea&rft.creator=Donelli%2C+Massimo&rft.creator=Caorsi%2C+Salvatore&rft.creator=Pastorino%2C+Matteo&rft.creator=Raffetto%2C+Mirco&rft.subject=TU+Technical+Reports+and+Publications&rft.description=Genetic+algorithms+(GAs)+are+well+known+optimization+strategies+able+to+deal+with+nonlinear+functions+as+those+arising+in+inverse+scattering+problems.+However%2C+they+are+computationally+expensive+thus+offering+poor+performances+in+terms+of+general+efficiency+when+compared+with+inversion+techniques+based+on+deterministic+optimization+methods.+In+this+paper%2C+a+parallel+implementation+of+an+inverse+scattering+procedure+based+on+a+suitable+hybrid+genetic+algorithm+is+presented.+The+proposed+strategy+is+aimed+at+reducing+the+overall+computational+burden+in+order+to+make+the+approach+competitive+with+gradient-based+methods+(GCs)+in+terms+of+runtime+by+preserving+the+capabilities+of+escaping+from+local+minima.+This+results+is+achieved+by+fully+exploiting+the+natural+parallelism+of+evolutionary+techniques+and+the+searching+capabilities+of+the+hybrid+approach.+The+effectiveness+of+the+proposed+implementation+is+demonstrated+by+considering+a+selected+numerical+benchmark+related+to+a+two-dimensional+scattering+geometry.&rft.date=2004-08&rft.type=Technical+Report&rft.type=NonPeerReviewed&rft.format=text&rft.language=en&rft.identifier=http%3A%2F%2Fwww.eledia.org%2Fstudents-reports%2F418%2F1%2FDIT-04-071.pdf&rft.identifier=++Massa%2C+Andrea+and+Donelli%2C+Massimo+and+Caorsi%2C+Salvatore+and+Pastorino%2C+Matteo+and+Raffetto%2C+Mirco++(2004)+Parallel+GA-based+Approach+for+Microwave+Imaging+Applications.++%5BTechnical+Report%5D++++(Submitted)++