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research-article

Solving subset sum by spiking neural P systems with astrocytes producing calcium

Published: 02 July 2022 Publication History

Abstract

We consider spiking neural P systems with astrocytes producing calcium that differs from the standard spiking neural P systems in several ways: we have a new type of resources called calcium unit alongside the standard spike, we have a new type of place called astrocyte alongside the standard neurons and we also have dedicated synapses for communicating calcium units alongside those used for communicating spikes. In order to illustrate how these systems work we give an example of a spiking neural P system with astrocytes producing calcium that generates all even numbers using only two neurons and one astrocyte and without using either forgetting rules or delay in the evolution rules. We prove that in this framework, we can provide semi-uniform and uniform constructions of spiking neural P system with astrocytes producing calcium working in a non-deterministic way that are able to solve the subset sum problem in a polynomial number of steps without using either forgetting rules or delay in the evolution rules.

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          Published In

          cover image Natural Computing: an international journal
          Natural Computing: an international journal  Volume 22, Issue 1
          Mar 2023
          216 pages

          Publisher

          Kluwer Academic Publishers

          United States

          Publication History

          Published: 02 July 2022
          Accepted: 14 June 2022

          Author Tags

          1. Spiking neural P systems
          2. Astrocyte
          3. Calcium unit
          4. Efficiency
          5. Subset sum problem

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