Title :
Programmable triangular neighborhood function for kohonen self-organizing map implemented on chip
Author :
Dlugosz, Rafal ; Kolasa, Marta ; Bielinski, Krzysztof
Author_Institution :
Inst. of Microtechnol., Swiss Fed. Inst. of Technol. in Lausanne, Neuchatel, Switzerland
Abstract :
A new hardware implementation of the triangular neighborhood function (TF) for ultra-low power, self-organizing maps (SOM) is presented. Simulations carried out in the software model of this network show that even for low signal resolutions (3-6 bits) performance of the network is not affected. Resolution of the signal at the output of this block has a dominant influence on the circuit complexity as well as the energy consumption. The proposed mechanism is very fast. For a neighborhood range of 15 a delay in the circuit equals 20 ns that allows for data rates of 20-40 MHz, even for large maps with several hundreds neurons.
Keywords :
CMOS digital integrated circuits; circuit complexity; electronic engineering computing; low-power electronics; self-organising feature maps; signal resolution; CMOS technology; Kohonen self-organizing map; SOM; circuit complexity; energy consumption; frequency 20 MHz to 40 MHz; neurons; programmable triangular neighborhood function; signal resolutions; software model; time 20 ns; Adders; Artificial neural networks; Complexity theory; Neurons; Signal resolution; Topology; Transistors; CMOS realization; digital circuits; low energy consumption; neural networks; parallel signal processing;
Conference_Titel :
Mixed Design of Integrated Circuits and Systems (MIXDES), 2010 Proceedings of the 17th International Conference
Conference_Location :
Warsaw
Print_ISBN :
978-1-4244-7011-2
Electronic_ISBN :
978-83-928756-4-2
