Connectionists: [CFP] Complex- and Hypercomplex-valued Neural Networks - Special Session IJCNN 2025

[Marcos Eduardo Valle (IMECC-Unicamp)]

Complex- and Hypercomplex-valued Neural Networks

https://www.ime.unicamp.br/~valle/CFPs/ijcnn2025/

https://2025.ijcnn.org/


Aim and Scope:

Complex-valued and, more generally, hypercomplex-valued neural networks
(HVNNs) constitute a rapidly growing research area that has attracted
continued interest for the last decade. Besides their natural ability to
treat multidimensional data, hypercomplex-valued neural networks can
benefit from hypercomplex numbers’ geometric and algebraic properties. For
example, complex-valued neural networks are essential for adequately
treating phase and the information contained in phase, including the
treatment of wave- and rotation-related phenomena such as electromagnetism,
light waves, quantum waves, and oscillatory phenomena. Quaternion-valued
neural networks, which naturally incorporate spacial rotations and have
potential applications in three- and four-dimensional data modeling, have
been effectively used to process and analyze multivariate images such as
color and polarimetric SAR images. Despite significant theoretical
development and successful applications, many research directions in HVNNs
remain in progress. These include formally generalizing the commonly used
real-valued network architectures and training algorithms to the
hypercomplex-valued case. There are also many exciting applications in
pattern recognition and classification, nonlinear filtering, intelligent
image processing, brain-computer interfaces, time-series prediction,
bioinformatics, and robotics, to list a few. This special session aims to
be the proper forum for a systematic and comprehensive exchange of ideas,
presenting recent research results and discussing future trends in complex-
and hypercomplex-valued neural networks. We hope the proposed session will
attract potential speakers and researchers interested in joining the
community. We also expect this session to benefit and inspire computational
intelligence researchers and other specialties that need sophisticated
neural network tools.

List of Topics:

This special session welcomes papers that are or might be related to all
aspects of complex- and hypercomplex-valued neural networks. Contributions
to theoretical advances or applications are all appreciated. We also
welcome interdisciplinary contributions from other areas on the proposed
scope's borders. Topics include, but are not limited to:

   -

   Theoretical aspects of complex- and hypercomplex-valued neural networks
   -

   Complex- and hypercomplex-valued activation functions
   -

   Learning algorithms for complex- and hypercomplex-valued neural networks
   -

   Complex- and hypercomplex-valued associative memories
   -

   Pattern recognition, classification, and time series prediction using
   hypercomplex-valued neural networks
   -

   Complex- and hypercomplex neural networks in nonlinear filtering
   -

   Dynamics of complex- and hypercomplex-valued neurons and networks
   -

   Chaos in the complex- and hypercomplex domain
   -

   Complex- and hypercomplex-valued deep neural networks
   -

   Spatiotemporal processing using complex- and hypercomplex-valued neural
   networks
   -

   Frequency domain processing using complex-valued neural networks
   -

   Phase-sensitive signal processing
   -

   Applications of complex- and hypercomplex-valued neural networks in
   image processing, speech processing, and bioinformatics
   -

   Quantum computation and quantum neural networks
   -

   Complex- and hypercomplex-valued neural networks in brain-computer
   interfaces
   -

   Complex- and hypercomplex-valued neural networks in robotics
   -

   Complex and hypercomplex-based hardware/devices such as lightwave and
   spin-wave neural devices
   -

   Quantum computation and quantum neural networks


Past Special Sessions:

Special sessions on complex- and hypercomplex-valued neural networks have
become a traditional event of the IJCNN conference. Thirteen special
sessions have been organized since 2006, namely:

   1.

   WCCI-IJCNN 2006, Vancouver - Canada;
   2.

   WCCI-IJCNN 2008, Hong Kong - China;
   3.

   IJCNN 2009, Atlanta - USA;
   4.

   WCCI-IJCNN 2010, Barcelona - Spain;
   5.

   IJCNN-2011, San Jose - USA;
   6.

   WCCI-IJCNN 2012, Brisbane - Australia;
   7.

   IJCNN-2013, Dallas - USA;
   8.

   WCCI-IJCNN 2014, Beijing - China;
   9.

   WCCI-IJCNN 2016, Vancouver - Canada;
   10.

   WCCI-IJCNN 2018, Rio De Janeiro - Brazil;
   11.

   WCCI-IJCNN 2020, Glasgow - UK;
   12.

   WCCI-IJCNN 2022, Padua - Italy;
   13.

   WCCI-IJCNN 2024, Yokohama - Japan

These special sessions attracted numerous submissions and had large
audiences. They featured many engaging presentations and very productive
discussions. Because of the recent advances in complex- and
hypercomplex-valued neural networks, we expect this special session to be
as exciting and fruitful as the past special sessions.


Organizers

   -

   Marcos Eduardo Valle, Universidade Estadual de Campinas (UNICAMP),
   Brazil.
   -

   Sven Buchholz, Technische Hochschule Brandenburg, Germany.
   -

   Eckhard Hitzer, International Christian University, Japan.
   -

   João Paulo Papa, Universidade Estadual Paulista (UNESP), Brazil.
   -

   Akira Hirose, University of Tokyo, Japan.


Important Dates

   -

   Paper Submission: January 15, 2025
   -

   Notification of Acceptance: March 17, 2025
   -

   Final Paper Submission: May 01, 2025
   -

   IJCNN 2025, Rome, Italy. June 30 - July 05, 2025


Do not hesitate to contact me or the organizers if you have any questions.
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