{ "id": "cond-mat/0101161", "version": "v3", "published": "2001-01-11T12:43:54.000Z", "updated": "2001-03-19T14:12:28.000Z", "title": "Mutual Information of Population Codes and Distance Measures in Probability Space", "authors": [ "Kukjin Kang", "Haim Sompolinsky" ], "comment": "11 pages, 3 figures, accepted to PRL", "doi": "10.1103/PhysRevLett.86.4958", "categories": [ "cond-mat.stat-mech", "q-bio" ], "abstract": "We studied the mutual information between a stimulus and a large system consisting of stochastic, statistically independent elements that respond to a stimulus. The Mutual Information (MI) of the system saturates exponentially with system size. A theory of the rate of saturation of the MI is developed. We show that this rate is controlled by a distance function between the response probabilities induced by different stimuli. This function, which we term the {\\it Confusion Distance} between two probabilities, is related to the Renyi $\\alpha$-Information.", "revisions": [ { "version": "v3", "updated": "2001-03-19T14:12:28.000Z" } ], "analyses": { "keywords": [ "mutual information", "population codes", "distance measures", "probability space", "statistically independent elements" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "TeX", "pages": 11, "language": "en", "license": "arXiv", "status": "editable" } } }