[CFP] 4th International Conference on Computational and Data Sciences in Economics and Finance (CDEF 2026)

[Masanori Hirano]

Dear all,

We are pleased to announce that 4th International Conference on Computational and Data Sciences in Economics and Finance (CDEF 2026) will be held in July 2026 in conjunction with IIAI AAI 2026.
This international conference focuses on informatics in finance and economics.
We appreciate many paper submissions from various backgrounds related to finance and economics.

++ Important Date ++
Paper deadline: April 15 (PST), 2026
Date: July 12-17, 2026

++ Venue and details ++
Fukui, Japan + Online
https://iaiai.org/conference/aai2026/conferences/cdef-2026/
Online sessions are scheduled for July 17, 2026. Please see the program for details.

++ Submission ++
See: https://iaiai.org/conference/aai2026/paper-submission/
IEEE 2 columns 2/4/6 pages (+2 pages are allowed)
Usually, accepted papers will be published via IEEE Xplore.
The review process is double-blinded.

++ Aims and Scope ++
With the recent development of informatics and AI technologies, they now play a key role in financial markets and economics. For example, for analyzing a large amount of financial information, computational informatics is necessary to handle them. Moreover, artificial market simulations, computational economics, natural language processing including large language models for finance and economics, and deep learning applications for many financial-related and economics-related challenges are also popular. More recently, alternative data exploration for wider informatics approaches is also gaining popularity in the financial and economic industries. Those new technologies have been developed not only by academic researchers but also by market participants. For more development, the collaboration of many participants having various backgrounds is now necessary. In this session, we aim to give them the specialized opportunity to gather and discuss new challenges in finance and economics. In organizing the second edition of the special session following the last year, we highly appreciate paper submissions from wider financial and economic topics and participation from the wider area, including academic and industrial areas.

The topics of interest include but are not limited to the following:
1. Informatics Models and Applications:
  - Agent-Based Modelling and Simulation in Finance/Economics
  - Social Simulation involving Finance/Economics
  - Machine Learning in Finance/Economics
  - Deep Learning in Finance/Economics
  - Neural Networks in Finance/Economics
  - Data Mining in Finance/Economics
  - Text Mining in Finance/Economics
  - Large Language Models in Finance/Economics
  - Big Data in Finance/Economics
  - Probabilistic Modeling in Finance/Economics
  - Fuzzy in Finance/Economics
  - Time-series Analysis in Finance/Economics
  - Evolutionary Computation in Finance/Economics
  - Semantic Web and Linked Data in Finance/Economics
  - Gama Theory in Finance/Economics
  - Optimization in Finance/Economics
 
 2. Informatics Application in Finance:
  - Trading
  - Hedging
  - Asset allocation
  - Portfolio optimization
  - Risk Management
  - Financial Analytics
  - Behavioural finance
  - Evolutionary finance
  - Cryptocurrencies
 
 3. Informatics Application in Economics
  - Computational Economics
  - Market Modeling
  - Agent-based simulation for Economic Decision
  - Alternative data

 4. Informatics Application in Business
  - Business analytics
  - Recommender systems
  - E-commerce
  - Advertising and marketing
  - Crowds and market models
  - Demand forecasting
  - Distribution and supply chain

++ Special Sessions ++
Special Session papers are also treated as the same as main sessions. If the theme fits, please select it! (Please select it in the submission system as the topic.)
  - TBD. Special sessions are currently being accepted.
https://iaiai.org/conference/aai2026/special-sessions/

++ Organizers ++
Masanori Hirano (Preferred Networks, Inc.)
Kei Nakagawa (Nomura Asset Management Co, ltd.)
Yoshiyuki Suimon (Nomura Securities Co., Ltd.)
Hiroki Sakaji (Hokkaido University)

++ Contact ++
ai...@mhirano.jp

If you have any questions, please feel free to contact us.
Regards,

Masanori Hirano, Preferred Networks, Inc., Japan

[水田孝信 (Takanobu MIZUTA)]

Dear all,

The special session for IIAI AAI CDEF 2026, "Towards Digital Twin for
Economics and Finance: Foundations, Enabling Technologies, and
Applications", has been accepted.
<https://iaiai.org/conference/aai2026/accepted-special-sessions/#:~:text=CDEF%2DSS1%3A%20%C2%A0Towards,Co.%2CLtd.%2C%20Japan)>
Ryuji Hashimoto (Simulacra Inc., Japan<https://www.simulacra.co.jp/>)
and me organize the session.

You can choose the session, when you submit to CDEF (when you choose
your subject on easychair).
The session covers very very wide, Foundations, Enabling Technologies,
and Applications for modeling and simulation (Digital Twin) for
Economics and Finance, for examples, agentic AI, LLM for modeling or
suporting investors, agent-based models, synthetic data, and so on.

We are happy if you consider choosing the session.

Thanks again and best regards, Takanobu MIZUTA
<https://mizutatakanobu.com>

=================
CDEF-SS1: Towards Digital Twin for Economics and Finance:
Foundations, Enabling Technologies, and Applications

Organizer: Ryuji Hashimoto (The University of Tokyo, Simulacra Inc.,
Japan) and Takanobu Mizuta (SPARX Asset Management Co.,Ltd., Japan)

Abstract: Recent advances in artificial intelligence (AI), data
infrastructures, and computational modeling are creating new
opportunities to build digital twins of economic and financial
systems. This special session focuses on both the construction and
utilization of digital twins for economics and finance, and broadly
welcomes enabling technologies and methodological innovations that
contribute to this vision.
On the construction side, we invite research on realistic modeling of
individual behavior, such as behavioral finance, learning agents,
personalization, large language models, and agentic AI, as well as
faithful representations of social and market structures through
agent-based modeling, knowledge extraction from data, calibration and
optimization, synthetic data generation, and high-fidelity simulation
environments. On the utilization side, we welcome contributions
exploring how digital twins can support decision-making at multiple
levels, including individual-level decision support (e.g., advisory
systems and risk management) and collective-level governance and
policy-making, such as institutional design, policy evaluation, stress
testing, and regulation of AI-mediated markets. We encourage diverse
approaches and interdisciplinary perspectives that advance the
development and practical deployment of digital twins for economics
and finance.
=================

2026年1月28日(水) 13:47 Masanori Hirano <masa...@mhirano.jp>: