{ "_id": "6ad6798b0d12c08e591b773f", "Package": "QGA", "Type": "Package", "Title": "Quantum Genetic Algorithm", "Version": "1.1", "Date": "2024-09-23", "Authors@R": "c(person(\"Giulio\", \"Barcaroli\", role = c(\"aut\", \"cre\"),\nemail = \"gbarcaroli@gmail.com\"))", "Description": "Function that implements the Quantum Genetic Algorithm,\nfirst proposed by Han and Kim in 2000. This is an R\nimplementation of the 'python' application developed by\nLahoz-Beltra\n().\nEach optimization problem is represented as a maximization one,\nwhere each solution is a sequence of (qu)bits. Following the\nquantum paradigm, these qubits are in a superposition state:\nwhen measuring them, they collapse in a 0 or 1 state. After\nmeasurement, the fitness of the solution is calculated as in\nusual genetic algorithms. The evolution at each iteration is\noriented by the application of two quantum gates to the\namplitudes of the qubits: (1) a rotation gate (always); (2) a\nPauli-X gate (optionally). The rotation is based on the theta\nangle values: higher values allow a quicker evolution, and\nlower values avoid local maxima. The Pauli-X gate is equivalent\nto the classical mutation operator and determines the swap\nbetween alfa and beta amplitudes of a given qubit. The package\nhas been developed in such a way as to permit a complete\nseparation between the engine, and the particular problem\nsubject to combinatorial optimization.", "License": "GPL (>= 2)", "Encoding": "UTF-8", "LazyLoad": "yes", "NeedsCompilation": "no", "Packaged": { "Date": "2026-10-19 20:08:57 UTC", "User": "root" }, "URL": "https://barcaroli.github.io/QGA/,\nhttps://github.com/barcaroli/QGA/", "BugReports": "https://github.com/barcaroli/QGA/issues", "VignetteBuilder": "knitr", "RoxygenNote": "7.3.3", "Repository": "https://barcaroli.r-universe.dev", "Date/Publication": "2026-10-19 15:38:56 UTC", "RemoteUrl": "https://github.com/barcaroli/qga", "RemoteRef": "HEAD", "RemoteSha": "e9702bac802db6e68c11ec04e3f55d81dbbe2b6f", "Author": "Giulio Barcaroli [aut, cre]", "Maintainer": "Giulio Barcaroli ", "_user": "barcaroli", "_type": "src", "_file": "QGA_1.1.tar.gz", "_fileid": "https://r2.ropensci.org/1137890be29b5eed3fc0ea44a77473c6f5c3872d9e6454dfd7af8f8afcea8d1f", "_filesize": 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