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We compare lightweight automata-based models (n-grams) with neural architectures (LSTM, Transformer) for next-activity prediction in streaming event logs. Experiments on synthetic patterns and five real-world process mining datasets show…

Machine Learning · Computer Science 2026-04-24 Benedikt Bollig , Matthias Függer , Thomas Nowak , Paul Zeinaty

Modern machine learning models (such as deep neural networks and boosting decision tree models) have become increasingly popular in financial market prediction, due to their superior capacity to extract complex non-linear patterns. However,…

Machine Learning · Computer Science 2021-02-02 Chuheng Zhang , Yuanqi Li , Xi Chen , Yifei Jin , Pingzhong Tang , Jian Li

Products reviews are one of the major resources to determine the public sentiment. The existing literature on reviews sentiment analysis mainly utilizes supervised paradigm, which needs labeled data to be trained on and suffers from…

Computation and Language · Computer Science 2017-05-30 Murtadha Talib AL-Sharuee , Fei Liu , Mahardhika Pratama

In financial trading, large language model (LLM)-based agents demonstrate significant potential. However, the high sensitivity to market noise undermines the performance of LLM-based trading systems. To address this limitation, we propose a…

Trading and Market Microstructure · Quantitative Finance 2025-08-19 Li Zhao , Rui Sun , Zuoyou Jiang , Bo Yang , Yuxiao Bai , Mengting Chen , Xinyang Wang , Jing Li , Zuo Bai

Financial sentiment analysis plays a crucial role in informing investment decisions, assessing market risk, and predicting stock price trends. Existing works in financial sentiment analysis have not considered the impact of stock prices or…

Artificial Intelligence · Computer Science 2025-12-25 Chaithra , Kamesh Kadimisetty , Biju R Mohan

The integration of large language models (LLMs) in economic simulations has significantly enhanced agent-based modeling, yet existing frameworks struggle to capture the interplay between short-term optimization and long-term strategic…

Multiagent Systems · Computer Science 2026-05-14 Annie Liu , Zane Cao , Lang Chen , Zongxin Xu , Zigan Wang

Sentiment analysis plays a crucial role in various domains, such as business intelligence and financial forecasting. Large language models (LLMs) have become a popular paradigm for sentiment analysis, leveraging multi-task learning to…

Computation and Language · Computer Science 2025-06-30 Hongcheng Ding , Xuanze Zhao , Ruiting Deng , Shamsul Nahar Abdullah , Deshinta Arrova Dewi , Zixiao Jiang

This paper presents a novel hierarchical framework for portfolio optimization, integrating lightweight Large Language Models (LLMs) with Deep Reinforcement Learning (DRL) to combine sentiment signals from financial news with traditional…

Portfolio Management · Quantitative Finance 2025-07-25 Benjamin Coriat , Eric Benhamou

Sentiment analysis is crucial for the advancement of artificial intelligence (AI). Sentiment understanding can help AI to replicate human language and discourse. Studying the formation and response of sentiment state from well-trained…

Computation and Language · Computer Science 2020-04-23 Yanan Jia , Sony SungChu

Most existing methods focus on sentiment analysis of textual data. However, recently there has been a massive use of images and videos on social platforms, motivating sentiment analysis from other modalities. Current studies show that…

Machine Learning · Computer Science 2022-10-13 Guilherme Lourenço de Toledo , Ricardo Marcondes Marcacini

Stock trading strategy plays a crucial role in investment companies. However, it is challenging to obtain optimal strategy in the complex and dynamic stock market. We explore the potential of deep reinforcement learning to optimize stock…

Machine Learning · Computer Science 2022-08-02 Xiao-Yang Liu , Zhuoran Xiong , Shan Zhong , Hongyang Yang , Anwar Walid

Analyzing stocks and making higher accurate predictions on where the price is heading continues to become more and more challenging therefore, we designed a new financial algorithm that leverages social media sentiment analysis to enhance…

Machine Learning · Computer Science 2025-02-11 SriVarsha Mulakala , Umesh Vangapally , Benjamin Larkey , Aidan Henrichs , Corey Wojslaw

The rapid advancement of Large Language Models (LLMs) has spurred discussions about their potential to enhance quantitative trading strategies. LLMs excel in analyzing sentiments about listed companies from financial news, providing…

Computation and Language · Computer Science 2024-05-07 Haohan Zhang , Fengrui Hua , Chengjin Xu , Hao Kong , Ruiting Zuo , Jian Guo

The emerging technique of deep learning has been widely applied in many different areas. However, when adopted in a certain specific domain, this technique should be combined with domain knowledge to improve efficiency and accuracy. In…

Computation and Language · Computer Science 2019-02-19 Khuong Vo , Dang Pham , Mao Nguyen , Trung Mai , Tho Quan

The potential of machine learning to automate and control nonlinear, complex systems is well established. These same techniques have always presented potential for use in the investment arena, specifically for the managing of equity…

Portfolio Management · Quantitative Finance 2011-10-18 Evan Hurwitz , Tshilidzi Marwala

Modern AI systems increasingly operate inside markets and institutions where data, behavior, and incentives are endogenous. This paper develops an economic foundation for multi-agent learning by studying a principal-agent interaction in a…

Machine Learning · Statistics 2026-01-08 Nassim Helou

In this paper we continue the study of the simulated stock market framework defined by the driving sentiment processes. We focus on the market environment driven by the buy/sell trading sentiment process of the Markov chain type. We apply…

Trading and Market Microstructure · Quantitative Finance 2017-11-27 Mikhail Goykhman , Ali Teimouri

Sentiment-based stock prediction systems aim to explore sentiment or event signals from online corpora and attempt to relate the signals to stock price variations. Both the feature-based and neural-networks-based approaches have delivered…

Computation and Language · Computer Science 2020-08-19 Yue Zhou , Kerstin Voigt

Large language models (LLMs) are increasingly deployed in agentic frameworks, in which prompts trigger complex tool-based analysis in pursuit of a goal. While these frameworks have shown promise across multiple domains including in finance,…

Statistical Finance · Quantitative Finance 2025-07-14 Dimitrios Emmanoulopoulos , Ollie Olby , Justin Lyon , Namid R. Stillman

In recent years, a wide range of investment models have been created using artificial intelligence. Automatic trading by artificial intelligence can expand the range of trading methods, such as by conferring the ability to operate 24 hours…

Trading and Market Microstructure · Quantitative Finance 2021-12-17 Koya Ishikawa , Kazuhide Nakata