Team:USP-UNESP-Brazil/Associative Memory/Introduction

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(Background)
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===Background===
===Background===
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Synthetic biology is a powerful tool for the construction of mechanisms capable of executing routines for processing and storing information ''in vivo''. The final goal of this project is to build an associative memory network in a populational system of ''E.coli''. In our design, a population of bacteria represents a “neuron” of the network.  Each neuron communicates with the whole network by quorum sensing molecules (QSM) and the interactions can be repressive or excitatory. Once all "neurons" are connected, it defines a called Hopfield associative memory architecture. This idea was developed by Quian et al. [http://www.nature.com/nature/journal/v475/n7356/full/nature10262.html?WT.ec_id=NATURE-20110721] using DNA strand displacement cascades.  
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Synthetic biology is a powerful tool for the construction of mechanisms capable of executing routines for processing and storing information ''in vivo''. The final goal of this project is to build an associative memory network in a populational system of ''E.coli''. In our design, a population of bacteria represents a “neuron” of the network.  Each neuron communicates with the whole network by quorum sensing molecules (QSM) and the interactions can be repressive or excitatory. Once all "neurons" are connected, it defines a called Hopfield associative memory architecture. A similar idea was developed by Quian et al. [http://www.nature.com/nature/journal/v475/n7356/full/nature10262.html?WT.ec_id=NATURE-20110721] using DNA strand displacement cascades.  
They implemented a Hopfield associative memory with four fully connected artificial neurons that, after training in silico, remembers four single-stranded DNA patterns and recalls the most similar one when presented with an incomplete pattern.  
They implemented a Hopfield associative memory with four fully connected artificial neurons that, after training in silico, remembers four single-stranded DNA patterns and recalls the most similar one when presented with an incomplete pattern.  

Revision as of 17:34, 26 September 2012