{ "id": "cond-mat/9608092", "version": "v2", "published": "1996-08-21T08:02:36.000Z", "updated": "1997-01-13T12:01:27.000Z", "title": "Multifractality and percolation in the coupling space of perceptrons", "authors": [ "M. Weigt", "A. Engel" ], "comment": "13 pages, revtex, 4 eps figures, version accepted for publication in Phys. Rev. E", "journal": "Phys. Rev. E55, 4552 (1997)", "doi": "10.1103/PhysRevE.55.4552", "categories": [ "cond-mat.dis-nn" ], "abstract": "The coupling space of perceptrons with continuous as well as with binary weights gets partitioned into a disordered multifractal by a set of $p=\\gamma N$ random input patterns. The multifractal spectrum $f(\\alpha)$ can be calculated analytically using the replica formalism. The storage capacity and the generalization behaviour of the perceptron are shown to be related to properties of $f(\\alpha)$ which are correctly described within the replica symmetric ansatz. Replica symmetry breaking is interpreted geometrically as a transition from percolating to non-percolating cells. The existence of empty cells gives rise to singularities in the multifractal spectrum. The analytical results for binary couplings are corroborated by numerical studies.", "revisions": [ { "version": "v2", "updated": "1997-01-13T12:01:27.000Z" } ], "analyses": { "keywords": [ "coupling space", "perceptron", "multifractality", "percolation", "multifractal spectrum" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. E" }, "note": { "typesetting": "RevTeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable" } } }