Alex Pappachen James []

Neuromorphic Computing - Circuits and Systems; Pattern recognition and machine learning in hardware

"Artificial Intelligence - Be afraid of the evolution of stupidity exhibited by some natural brains; not the intelligent silicon brain"

Alex Pappachen James received the Ph.D. degree in 2 years from the Queensland Micro and Nanotechnology Centre, Griffith University, Brisbane, QLD, Australia. He works on brain-inspired circuits as well as algorithms and systems. Currently, he is chairing the Electrical Engineering Department and leads the Circuits and Systems Group at Nazarbayev University. He is actively engaged in research commercialization and startups. He has several years experience of managing industry projects and academic projects in board design and pattern recognition circuits, and data and business analytics consulting for IT and semiconductor industry. He is a mentor to several tech startups and co-founded companies in machine learning and computer vision. He has authored several peer-reviewed publications and is a reviewer to international journals and conferences such as IEEE ISCAS, IEEE ICECS, TCAS, TVLSI, TCAD, TCyb, TEC, and TIP. Dr. James has been the founding chair for IEEE Kerala Section Circuits and Systems Society and Executive Member of IET Vision and Imaging Network. He is the founding chair of IEEE Kazakhstan subsection, and mentor to IEEE NU Student Branch. He was an editorial member of Information Fusion, Elsevier, and is an Associate Editor for HCIS, Springer, IEEE ACCESS, IEEE Transactions on Emerging Topics in Computational Intelligence (2017-18) (Guest associate editor), and IEEE Transactions on Circuits and Systems 1 (2018-present).  He also received a certificate of appreciation and award from the President of the Republic of Kazakhstan for excellence in education in 2017. He is a Senior Member of IEEE, Life Member of ACM, and Senior Fellow of HEA.

Latest News! -  Deep Learning Classifiers with Memristive Networks 

Deep Learning Classifiers with Memristive Networks 

This book introduces readers to the fundamentals of deep neural network architectures, with a special emphasis on memristor circuits and systems. At first, the book offers an overview of neuro-memristive systems, including memristor devices, models, and theory, as well as an introduction to deep learning neural networks such as multi-layer networks, convolution neural networks, hierarchical temporal memory, and long short term memories, and deep neuro-fuzzy networks. It then focuses on the design of these neural networks using memristor crossbar architectures in detail. The book integrates the theory with various applications of neuro-memristive circuits and systems. It provides an introductory tutorial on a range of issues in the design, evaluation techniques, and implementations of different deep neural network architectures with memristors.


  • Offers an introduction to deep neural network architectures
  • Describes in detail different kind of neuro-memristive systems, circuits and models
  • Shows how to implement different kind of neural networks in analog memristive circuits


Latest news! - 6 papers in ISCAS 2019

  1. A. Dorzhigulov, A. James, Generalized Bell-Shaped Membership Function Generation Circuit for Memristive Neural Networks, ISCAS 2019
  2. K. Aliakhmet, A. James, Temporal G-Neighbor Filtering for Analog Domain Noise Reduction in Astronomical Videos, ISCAS 2019 [TCAS-2]
  3. Y. Akhmetov, A. James, Probabilistic Neural Network with Memristive Crossbar Circuits, ISCAS 2019
  4. O. Krestinskaya, A. Irmanova, A. James, Memristive Non-Idealities: Is There Any Practical Implications for Designing Neural Network Chips?, ISCAS 2019
  5. [TCAS-1] O. Krestinskaya, K. Salama, A. James, Learning in Memristive Neural Network Architectures Using Analog Backpropagation Circuits, ISCAS 2019
  6. Krestinskaya O, Choubey B., James AP, AM-DCGAN: Analog Memristive Hardware Accelerator for Deep Convolutional Generative Adversarial Networks, 2019 ISCAS LBN accepted, 2019 [TCAS2]

Latest news!

IEEE International Conference on Artificial Intelligence Circuits and Systems (AICAS 2019), Special Session: Emerging Memory Technologies for Neuromorphic Circuits and Systems; Chairs: Jason Eshraghian (University of Western Australia), Alex James (Nazarbayev University), Herbert Ho-Ching Iu (University of Western Australia)

EHETL Talk - Infinite professors - Higher education leaders forum - in a rat race

 Latest news! - 3 papers in ISCAS 2018

  1. [Conference] Olga Krestinskaya, Khaled Salama, Alex James, Analog Backpropagation Learning Circuits for Memristive Crossbar Neural Networks, IEEE International Symposium on Circuits and Systems 2018 (ISCAS 2018)
  2. [Conference] Darya Mikhailenko, Alex James, Kaushik Roy, M^2CA: Modular Memristive Crossbar Arrays, IEEE International Symposium on Circuits and Systems 2018 (ISCAS 2018)
  3. [Conference] A. P. James, I. Fedorova, T. Ibrayev and D. Kudithipudi, HTM Spatial Pooler with Memristor Crossbar Circuits for Sparse Biometric Recognition, IEEE International Symposium on Circuits and Systems 2018 (ISCAS 2018)

New Book!

Memristor and Memristive Neural Networks

Memristor and Memristive Neural Networks
This book covers a range of models, circuits and systems built with memristor devices and networks in applications to neural networks. It is divided into three parts: (1) Devices, (2) Models and (3) Applications. The resistive switching property is an important aspect of the memristors, and there are several designs of this discussed in this book, such as in metal oxide/organic semiconductor nonvolatile memories, nanoscale switching and degradation of resistive random access memory and graphene oxide-based memristor. The modelling of the memristors is required to ensure that the devices can be put to use and improve emerging application. In this book, various memristor models are discussed, from a mathematical framework to implementations in SPICE and verilog, that will be useful for the practitioners and researchers to get a grounding on the topic. The applications of the memristor models in various neuromorphic networks are discussed covering various neural network models, implementations in A/D converter and hierarchical temporal memories.


Call for Papers (New!)

IEEE Transactions on Emerging Topics in Computational Intelligence

Guest editors: Alex James, Nazarbayev University; Khaled Salama, KAUST; Hai Li, Duke University; Biolek Dalibor, Univerzita Obrany, Brno; Giacomo Indiveri, ETH, Zurich; Leon Chua, University of California, Berkeley

Submission Deadline: November 30, 2017 (revised)

IET Cyber-Physical Systems: Theory & Applications

Guest editors: Alex James, Nazarbayev University; Martin Wäny, Austria Microsystems;  Bhaskar Choubey, University of Oxford; Aleksej Makarov, Vlatacom; Sergio A Velastin, University Carlos III Madrid; Claudio Salvadori, New Generation Sensors srl

Submission Deadline: October 30, 2017 (revised)

Surveys and tutorials:

James, Alex Pappachen, and Belur V. Dasarathy. "Medical image fusion: A survey of the state of the art." Information Fusion 19 (2014): 4-19.

AK.Maan, A.J. Deepthi, A.P. James, A Survey of Memristive Threshold Logic Circuits, IEEE Transactions on Neural Networks and Learning Systems (2017)   [Download - open access]

Research Specialities:  I am a scientist working on various aspects of circuits and systems for deep neuromorphic networks, image processing, and pattern recognition.

Current Roles: Head of Department - Electrical Engineering (2017-)

Education: Ph.D.  [2 years] (on hardware face recognition) from Griffith School of Engineering, Griffith University; Masters [2 years] (on current mirrors) and Bachelors (honors) [4 years] (on fuzzy logic) with the highest distinction (summa cum laude)  in Electronics Engineering

Experiance: Founded two start-up's,  consulting six start-up companies, 12 years in academia, 8 years in industry.

IEEE/IET: Founding chair IEEE Kazakhstan subsection (2017-), IEEE  Kerala CASS Chapter Founding Chair (2015-2016), Execom Member Kerala Section (2015-2016), Exec. Member of IET Vision and Imaging Network (2015-2017).

Publications: 80+ papers on mixed-signal circuits, algorithms, and systems for intelligent pattern recognition systems especially with memristive devices and circuits.

Editorial/Review services: Reviewer for 20+ international prestigious journals and conferences such as IEEE ISCAS, IEEE ICECS, TCAS, TVLSI, TCAD, TCyb, TEC, TIP, etc. Editorial member of Information Fusion, Elsevier (Citescore:4.82, SNIP:3.537, citescoreRank:4/139); is currently an Associate Editor of Human-centric Computing and Information Sciences (HCIS), Springer (Citescore:4.49, SNIP:3.976, citescoreRank:9/200), and Associate Editor of IEEE Access, (2017-) (Impact (2015)- Citescore:4.32, SNIP:3.601, citescoreRank:5/262). His recent participation in technical committee/reviewer for conferences supported by IEEE/IET include ISCAS2017, MWSCAS 2017, PrimeAsia 2017, ICECS 2016, ICDP 2016, VISIGRAPP 2016, WICT 2016, ISDA 2016, HIS'16, NaBIC 2016 , BICA 2016, ICACCI 2016, SET-CAS 2016, CCIOT 2016, ARONCAS 2016, APCAE 2016, IEAC 2016, ISTA’16, ISI'16 etc. His research is focused on brain-inspired circuits and systems. He is an IEEE Senior Member.

Keywords: Threshold Logic - Memristors, VLSI, Algorithms, On-chip signal processing; Brain inspired computing - devices, algorithms, architecture; Pattern recognition - Deep learning, Face and Speech recognition


Recent works

  1. [Journal] O. Krestinskaya,T. Ibarayev, A.P. James, Hierarchical Temporal Memory Features with Memristor Logic Circuits for Pattern RecognitionIEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems (2017)
  2. [Journal] J. J. Mathew,  A. Zollanvari, A. P. James, Edge-Aware Spatial Denoising Filtering Based on a Psychological Model of Stimulus Similarity, IEEE Access, 2017
  3. [Journal] A.P. James, I. Fedorova,T. Ibarayev, D. Kudithipudi, HTM Spatial Pooler Memristor Crossbar Circuits for Sparse Biometric Recognition, IEEE Transactions on Biomedical Circuits and Systems (2017) doi: 10.1109/TBCAS.2016.2641983
  4. [Journal] AK.Maan, A.J. Deepthi, A.P. James, A Survey of Memristive Threshold Logic Circuits, IEEE Transactions on Neural Networks and Learning Systems (2017)   [Download - open access]
  5. [Journal] M. Milacic, A.P. James, S. Dimitrijev, Recognizing isolated words with minimum distance similarity metric padding,  Journal of Intelligent & Fuzzy Systems, vol. 32, no. 4, pp. 2933-2939, 2017
  6. [Conference] A. Irmanova, O. Krestinskaya, A.P. James,  Neuromorphic adaptive edge-preserving denoising filter, IEEE International Conference for Rebooting Computing Washington, DC, on November 8-9, 2017
  7. [Conference] O. Krestinskaya, J.J. Mathew, A.P. James, Unified Model for Contrast Enhancement and Denoising, IEEE Computer Society Annual Symposium on VLSI (ISVLSI), July 3-5, 2017, Bochum, Germany.
  8. [Conference] Y. Akhmetov, J. Mathew, A. P. James, Variable Pixel G-Neighbor Filters, 2017 IEEE Int'l Symposium on Circuits & Systems (IEEE ISCAS 2017), Baltimore, MD, USA from May 28-31, 2017
  9. [Conferencel] Timur Ibrayev, Alex Pappachen James, Cory Merkel, Dhireesha Kudithipudi, A Design of HTM Spatial Pooler for Face Recognition Using Memristor-CMOS Hybrid Circuits, 2016 IEEE Int'l Symposium on Circuits & Systems (IEEE ISCAS 2016), Canada, May 22-26, 2016 
  10. [Journal] Daniyar Bakir, Alex Pappachen James, Amin Zollanvari, An Efficient Method to Estimate the Optimum Regularization Parameter in RLDA Classifier, Bioinformatics, 2016, IF: 5.766 [Download]
  11. [Conferencel] Akshay Maan, Alex Pappachen James, Voltage Controlled Memristor Threshold Logic Gates2016 IEEE Asia Pacific Conference on Circuits & Systems (IEEE APCCAS 2016),  Jeju, Korea, October 25-28, 2016 (see preprint 10.6084/m9.figshare.3793083 )
  12. [Conferencel] Askhat Zhanbossinov, Kamilya Smagulova, Alex Pappachen James, CMOS-memristor Dendrite Threshold Circuits, 2016 13th biennial IEEE Asia Pacific Conference on Circuits & Systems (IEEE APCCAS 2016),  Jeju, Korea, October 25-28, 2016 (see preprint
  13. [Patent] Alex Pappachen Jamesкогнитивная сеть для обнаружения и отслеживания объектов, (19) KZ (13) B(11) 031101