Storing and restoring visual input with collaborative rank coding and associative memory

Neurocomputing(2006)

引用 28|浏览0
暂无评分
摘要
Associative memory in cortical circuits has been held as a major mechanism for content-addressable memory. Hebbian synapses implement associative memory efficiently when storing sparse binary activity patterns. However, in models of sensory processing, representations are graded and not binary. Thus, it has been an unresolved question how sensory computation could exploit cortical associative memory. Here we propose a way how sensory processing could benefit from memory in cortical circuitry. We describe a new collaborative method of rank coding for converting graded stimuli, such as natural images, into sequences of synchronous spike volleys. Such sequences of sparse binary patterns can be efficiently processed in associative memory of the Willshaw type. We evaluate storage capacity and noise tolerance of the proposed system and demonstrate its use in cleanup and fill-in for noisy or occluded visual input.
更多
查看译文
关键词
cortical associative memory,visual input,attractor memory,collaborative rank coding,rank coding,cortical circuitry,sensory computation,associative memory,sparse binary pattern,sequence memory,sensory processing,content-addressable memory,data compression,sensory coding,storing sparse binary activity,cortical circuit,graded stimulus,computer science,content addressable memory
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要