{"added":null,"apiVersion":1,"behindSince":null,"buildDepends":[],"categories":["math"],"comment":"Fully featured neural network simulator","compare":"/compare/snns/index.json","dependentCount":null,"description":"SNNS (Stuttgart Neural Network Simulator) is a software simulator for neural\nnetworks on Unix workstations developed at the Institute for Parallel and\nDistributed High Performance Systems (IPVR) at the University of Stuttgart.\nThe goal of the SNNS project is to create an efficient and flexible\nsimulation environment for research on and application of neural nets.\n\nThe SNNS simulator consists of two main components:\n\n1) simulator kernel written in C\n2) graphical user interface under X\n\nThe simulator kernel operates on the internal network data structures of the\nneural nets and performs all operations of learning and recall. It can also\nbe used without the other parts as a C program embedded in custom\napplications. It supports arbitrary network topologies and the concept of\nsites. SNNS can be extended by the user with user defined activation\nfunctions, output functions, site functions and learning procedures, which\nare written as simple C programs and linked to the simulator kernel.\n\nThe graphical user interface XGUI (X Graphical User Interface), built on top\nof the kernel, gives a 2D and a 3D graphical representation of the neural\nnetworks and controls the kernel during the simulation run. In addition, the\n2D user interface has an integrated network editor which can be used to\ndirectly create, manipulate and visualize neural nets in various ways.","flavors":[],"html":"https://daemonports.org/dragonfly/math/snns/","kind":"port","lastUpdate":null,"license":null,"licenses":[],"maintainer":"ports@FreeBSD.org","name":"snns","newest":true,"newestVersion":"4.3","noVulnData":false,"origin":"math/snns","otherSystems":[{"maintainer":"ports@FreeBSD.org","newest":true,"origin":"math/snns","path":"/math/snns/","system":"FreeBSD","version":"4.3_1"},{"maintainer":"pkgsrc-users@NetBSD.org","newest":true,"origin":"math/snns","path":"/netbsd/math/snns/","system":"NetBSD","updated":"2026-08-04","version":"4.3nb2"},{"maintainer":"ports@FreeBSD.org","newest":true,"noVulnData":true,"origin":"math/snns","path":"","system":"GhostBSD","version":"4.3_1"}],"packages":null,"pkgName":"snns-4.3_1","related":null,"repository":"DPorts","requiredBy":[],"requiredByCount":0,"runDepends":["x11-toolkits/libXaw3d","x11-toolkits/libXt","x11/libX11","x11/libXext"],"status":null,"system":"dragonfly","systemLabel":"DragonFly","version":"4.3_1","versions":[{"date":"2026-11-11","version":"4.3"}],"vulnerabilities":null,"www":"https://www.ra.cs.uni-tuebingen.de/SNNS/"}