Andy M. Tyrrell

ORCID: 0000-0002-8533-2404
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Evolutionary Algorithms and Applications
  • Modular Robots and Swarm Intelligence
  • Gene Regulatory Network Analysis
  • Metaheuristic Optimization Algorithms Research
  • Advanced Memory and Neural Computing
  • Reinforcement Learning in Robotics
  • VLSI and FPGA Design Techniques
  • Embedded Systems Design Techniques
  • Neural dynamics and brain function
  • Neuroscience and Neural Engineering
  • Artificial Immune Systems Applications
  • Cellular Automata and Applications
  • Music Technology and Sound Studies
  • Parallel Computing and Optimization Techniques
  • Advanced biosensing and bioanalysis techniques
  • Viral Infectious Diseases and Gene Expression in Insects
  • Evolution and Genetic Dynamics
  • Radiation Effects in Electronics
  • Low-power high-performance VLSI design
  • Advancements in Semiconductor Devices and Circuit Design
  • Speech and Audio Processing
  • DNA and Biological Computing
  • Neural Networks and Applications
  • Advanced Multi-Objective Optimization Algorithms
  • VLSI and Analog Circuit Testing

University of York
2015-2024

Nanyang Technological University
2015

York University
2007

Universities UK
1994-2006

Aston University
1986

Abstract Potential-induced degradation (PID) of photovoltaic (PV) modules is one the most severe types in modern modules, where power losses depend on strength electric field, temperature and relative humidity, PV module materials. Previous studies have only considered single effects PID; however, this work investigates losses, development hotspots, mm-level defects, performance ratio (PR) 28 PID affected modules. Following a standard experiment, it was found that (i) average loss 25%, (ii)...

10.1038/s41529-022-00221-9 article EN cc-by npj Materials Degradation 2022-02-03

The EU-funded CoCoRo project studies heterogeneous swarms of AUVs used for the purposes under water monitoring and search. underwater swarm system will combine bio-inspired motion principles with biologically-derived collective cognition mechanisms to provide a novel robotic that is scalable, reliable flexible respect its behavioural potential. We investigate develop swarm-level emergent self-awareness, taking biological inspiration from fish, honeybees, immune neurons. Low-level, local...

10.1109/sasow.2011.11 article EN 2011-10-01

Due to the importance of determining faulty bypass diodes in photovoltaic (PV) systems, have been widespread interest recent years due their improving PV system durability, operation, and overall safety. This article presents new work developing an artificial intelligence (AI) based model using principles neural networks (ANNs) detect short open diode fault conditions. With only three inputs from system, namely, output power, short-circuit current, open-circuit voltage, developed ANN can...

10.1109/tim.2023.3244230 article EN IEEE Transactions on Instrumentation and Measurement 2023-01-01

A novel approach to hardware fault tolerance is demonstrated that takes inspiration from the human immune system as a method of detection. The remarkable interacting cells and organs protect body invasion maintains reliable operation even in presence invading bacteria or viruses. This paper seeks address field electronic an immunological perspective with aim showing how methods based upon can both complement create new approaches development detection mechanisms for systems. In particular,...

10.1109/tevc.2002.1011538 article EN IEEE Transactions on Evolutionary Computation 2002-06-01

Parkinson's disease is a debilitating neurological condition that affects approximately 1 in 500 people and often leads to severe disability. To improve clinical care, better assessment tools are needed increase the accuracy of differential diagnosis monitoring. In this paper, we report how have used evolutionary algorithms induce classifiers capable recognizing movement characteristics patients. These diagnostically relevant patterns known occur over multiple time scales. capture this, two...

10.1109/tevc.2013.2281532 article EN IEEE Transactions on Evolutionary Computation 2013-09-16

Evolutionary robotics is heading towards fully embodied evolution in real-time and real-space. In this paper we introduce the Triangle of Life, a generic conceptual framework for such systems which robots can actually reproduce. This be instantiated with different hardware approaches reproduction mechanisms, but all cases system revolves around conception new robot organism. The other components capture principal stages system; as whole serves guide realizing anticipated breakthrough...

10.7551/978-0-262-31709-2-ch157 preprint EN cc-by 2013-08-29

Fault tolerance is a remarkable feature of biological systems and their self-repair capability influence modern electronic systems. In this paper, we propose novel plastic neural network model, which establishes homeostasis in spiking network. Combined with plasticity the inspiration from inhibitory interneurons, develop fault-resilient robotic controller implemented on an FPGA establishing obstacle avoidance task. We demonstrate proposed methodology Xilinx Artix-7 FPGA. The system able to...

10.1109/tcsi.2017.2726763 article EN cc-by IEEE Transactions on Circuits and Systems I Regular Papers 2017-07-28

This paper presents an advanced outdoor electroluminescence (EL) imaging system for inspecting solar photovoltaic (PV) modules under varying daylight conditions. EL imaging, known its effectiveness in non-destructively detecting PV module defects, is enhanced through specialized optical filters. These filters, including a bandpass filter targeting emissions and neutral density to reduce background light, significantly improve the system’s signal-to-noise ratio (SNR). The experimental results...

10.3390/photonics11010063 article EN cc-by Photonics 2024-01-07

The fine granularity and reconfigurable nature of field-programmable gate arrays (FPGA's) suggest that defect-tolerant methods can be readily applied to these devices in order increase their maximum economic sizes, through increased yield. This paper identifies the inability contain faults within single cells need for fast reconfiguration as key obstacles obtaining a significant Monte Carlo defect modeling photolithographic layers VLSI FPGA's is used foundation yield various architectures....

10.1109/92.273147 article EN IEEE Transactions on Very Large Scale Integration (VLSI) Systems 1994-03-01

The challenge A gateway event [35] is a change to system that leads the possibility of huge increases in kinds and levels complexity.It opens up whole new kind phase space system's dynamics.Gateway events during evolution life on earth include appearance eukaryotes (organisms with cell nucleus), an oxygen atmosphere, multi-cellular organisms grass.Gateway development mathematics each invention class numbers (negative, irrational, imaginary, . ..), dropping Euclid's parallel postulate.A...

10.1080/17445760500033291 article EN International Journal of Parallel Emergent and Distributed Systems 2005-03-01

It is now known that astrocytes modulate the activity at tripartite synapses where indirect signaling via retrograde messengers, endocannabinoids, leads to a localized self-repairing capability. In this paper, spiking astrocyte neural network (SANN) proposed demonstrate distributed capability level. The SANN uses novel learning rule combines spike-timing-dependent plasticity (STDP) and Bienenstock, Cooper, Munro (BCM) rules (hereafter referred as BSTDP rule). rule, synaptic weight...

10.1109/tnnls.2018.2854291 article EN IEEE Transactions on Neural Networks and Learning Systems 2018-07-31

Jointly optimising both the body and brain of a robot is known to be challenging task, especially when attempting evolve designs in simulation that will subsequently built real world. To address this, it increasingly common combine evolution with learning algorithm can either improve inherited controllers new offspring fine tune them design or learn from scratch. In this paper an approach proposed which specified indirectly by two compositional pattern producing networks (CPPN) encoded...

10.1109/tevc.2023.3316363 article EN IEEE Transactions on Evolutionary Computation 2023-01-01

Fault tolerance has always been a standard feature of electronic systems intended for long-term missions. However, the high complexity modern makes incorporation fault difficult task. Novel approaches to can be achieved by drawing inspiration from nature. Biological organisms possess characteristics such as healing and learning that applied design fault-tolerant systems. This paper extends work on bio-inspired at University York. It is proposed combining embryonic arrays with an immune...

10.1109/eh.2000.869359 article EN 2002-11-07

This paper describes the application of intrinsic evolvable hardware to combinational circuit design and synthesis, as an alternative conventional approaches. novel reconfigurable architecture is inspired by Cartesian genetic programming dedicated for implementing high performance digital image filters on a custom Xilinx Virtex FPGA xcv1000, together with flexible local interconnection hierarchy. As highly parallel architecture, it scales linearly filter complexity. It reconfigured external...

10.1109/eh.2004.1310809 article EN 2004-11-12

Fault tolerance is a crucial operational aspect of biological systems and the self-repair capabilities complex organisms far exceeds that even most advanced electronic devices. While many processes used by nature to achieve fault cannot easily be applied silicon-based systems, in this paper we show mechanisms loosely inspired operation multicellular can transported provide capabilities. Features such as dynamic routing, reconfiguration, on-chip reprogramming invaluable for realization...

10.1109/tevc.2007.896690 article EN IEEE Transactions on Evolutionary Computation 2007-10-01

The immune system is a key component in the maintenance of host homeostasis. Key actors this process are cells known as dendritic (DCs). An artificial based on DCs (known Dendritic Cell Algorithm: DCA) well established literature and has been applied number applications. Work paper concerned with development an integrated homeostatic for small, autonomous robotic systems, implemented resource limited micro-controller. As first step, we have modified DCA to operate both simulated units,...

10.1109/cec.2009.4983194 article EN 2009-05-01

Field programmable gate arrays (FPGAs) are widely used in applications where online reconfigurable signal processing is required. Speed and function density of FPGAs increasing as transistor sizes shrink to the nanoscale. As these transistors reduce size intrinsic variability becomes more a problem reliably create electronic designs according specification time consuming statistical simulations become necessary; even with accurate models simulation, fabrication yield will decrease every...

10.1109/tc.2013.59 article EN IEEE Transactions on Computers 2013-06-27

Abstract Surface-immobilization of molecules can have a profound influence on their structure, function and dynamics. Toehold-mediated strand displacement is often used in solution to drive synthetic nanomachines made from DNA, but the effects surface-immobilization mechanism kinetics this reaction not yet been fully elucidated. Here we show that surface-immobilized are significantly different those phase attribute intermolecular interactions within DNA layer. We demonstrate dynamics be...

10.1038/srep29581 article EN cc-by Scientific Reports 2016-07-08

10.1023/a:1010080629099 article EN Genetic Programming and Evolvable Machines 2000-01-01

The new Virtex device is for many people the solution to long term problem of implementing random configurations on digital electronic devices as required in paradigm evolvable hardware. It has previously been shown that hardware was possible these and it can be accomplished using partial reconfiguration speed up configuration process. Unfortunately circuit did not have any feedback paths, meaning time based circuits could implemented. This paper attempts address this by an array xc6200 like...

10.1109/eh.2000.869357 article EN 2002-11-07
Coming Soon ...