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In the field of quantitative trading, it is common practice to transform raw historical stock data into indicative signals for the market trend. Such signals are called alpha factors. Alphas in formula forms are more interpretable and thus…

统计金融 · 定量金融 2023-06-23 Shuo Yu , Hongyan Xue , Xiang Ao , Feiyang Pan , Jia He , Dandan Tu , Qing He

Genetic programming (GP) is the state-of-the-art in financial automated feature construction task. It employs reverse polish expression to represent features and then conducts the evolution process. However, with the development of deep…

统计金融 · 定量金融 2021-03-12 Jie Fang , Shutao Xia , Jianwu Lin , Zhikang Xia , Xiang Liu , Yong Jiang

Biological phenotypes are products of complex evolutionary processes in which selective forces influence multiple biological trait measurements in unknown ways. Phylogenetic factor analysis disentangles these relationships across the…

Automated alpha discovery is difficult because the search space of formulaic factors is combinatorial, the signal-to-noise ratio in daily equity data is low, and unconstrained program generation is operationally unsafe. We present Hubble,…

人工智能 · 计算机科学 2026-04-15 Runze Shi , Shengyu Yan , Yuecheng Cai , Chengxi Lv

Alphas are pivotal in providing signals for quantitative trading. The industry highly values the discovery of formulaic alphas for their interpretability and ease of analysis, compared with the expressive yet overfitting-prone black-box…

计算金融 · 定量金融 2024-06-27 Feng Xu , Yan Yin , Xinyu Zhang , Tianyuan Liu , Shengyi Jiang , Zongzhang Zhang

Financial markets are noisy and non-stationary, making alpha mining highly sensitive to backtest noise and regime shifts. While recent agentic frameworks improve automation, they often lack controllable multi-round search and reliable reuse…

Signal decay and regime shifts pose recurring challenges for data-driven investment strategies in non-stationary markets. Conventional time-series and machine learning approaches, which rely primarily on historical correlations, often…

交易与市场微观结构 · 定量金融 2025-12-30 Zuoyou Jiang , Li Zhao , Rui Sun , Ruohan Sun , Zhongjian Li , Jing Li , Daxin Jiang , Zuo Bai , Cheng Hua

Large language models hold promise as scientific assistants, yet existing agents either rely solely on algorithm evolution or on deep research in isolation, both of which face critical limitations. Pure algorithm evolution, as in…

人工智能 · 计算机科学 2025-10-08 Gang Liu , Yihan Zhu , Jie Chen , Meng Jiang

In this white paper, we present AlphaEvolve, an evolutionary coding agent that substantially enhances capabilities of state-of-the-art LLMs on highly challenging tasks such as tackling open scientific problems or optimizing critical pieces…

Automated feature engineering (AFE) enables AI systems to autonomously construct high-utility representations from raw tabular data. However, existing AFE methods rely on statistical heuristics, yielding brittle features that fail under…

人工智能 · 计算机科学 2026-02-19 Arun Vignesh Malarkkan , Wangyang Ying , Yanjie Fu

We introduce AlphaRank, an artificial intelligence approach to address the fixed-budget ranking and selection (R&S) problems. We formulate the sequential sampling decision as a Markov decision process and propose a Monte Carlo…

机器学习 · 计算机科学 2024-02-05 Ruihan Zhou , L. Jeff Hong , Yijie Peng

The biological functions of proteins often depend on dynamic structural ensembles. In this work, we develop a flow-based generative modeling approach for learning and sampling the conformational landscapes of proteins. We repurpose highly…

生物大分子 · 定量生物学 2024-09-04 Bowen Jing , Bonnie Berger , Tommi Jaakkola

Protein evolution through amino acid mutations is a cornerstone of life sciences. Recent advances in protein language models have shown rich evolutionary patterns, offering unprecedented potential for in-silicon directed evolution. However,…

人工智能 · 计算机科学 2026-01-08 Yaodong Yang , Yang Wang , Jinpeng Li , Pei Guo , Da Han , Guangyong Chen , Pheng-Ann Heng

We develop a general methodological framework for probabilistic inference in discrete- and continuous-time stochastic processes evolving on directed acyclic graphs (DAGs). The process is observed only at the leaf nodes, and the challenge is…

统计方法学 · 统计学 2025-05-27 Frank van der Meulen , Moritz Schauer , Stefan Sommer

The Apriori algorithm that mines frequent itemsets is one of the most popular and widely used data mining algorithms. Now days many algorithms have been proposed on parallel and distributed platforms to enhance the performance of Apriori…

数据库 · 计算机科学 2017-02-22 Sudhakar Singh , Rakhi Garg , P. K. Mishra

The task of financial analysis primarily encompasses two key areas: stock trend prediction and the corresponding financial question answering. Currently, machine learning and deep learning algorithms (ML&DL) have been widely applied for…

计算与语言 · 计算机科学 2024-03-20 Xiang Li , Zhenyu Li , Chen Shi , Yong Xu , Qing Du , Mingkui Tan , Jun Huang , Wei Lin

Factor Analysis has traditionally been utilized across diverse disciplines to extrapolate latent traits that influence the behavior of multivariate observed variables. Historically, the focus has been on analyzing data from a single study,…

统计方法学 · 统计学 2026-01-22 Elena Bortolato , Antonio Canale

We propose a framework for constructing factor models for alpha streams. Our motivation is threefold. 1) When the number of alphas is large, the sample covariance matrix is singular. 2) Its out-of-sample stability is challenging. 3)…

投资组合管理 · 定量金融 2014-12-02 Zura Kakushadze

In the trading process, financial signals often imply the time to buy and sell assets to generate excess returns compared to a benchmark (e.g., an index). Alpha is the portion of an asset's return that is not explained by exposure to this…

计算工程、金融与科学 · 计算机科学 2024-10-25 Yining Wang , Jinman Zhao , Yuri Lawryshyn

Tabular data optimization methods aim to automatically find an optimal feature transformation process that generates high-value features and improves the performance of downstream machine learning tasks. Current frameworks for automated…

机器学习 · 计算机科学 2024-06-12 Xiaohan Huang , Dongjie Wang , Zhiyuan Ning , Ziyue Qiao , Qingqing Long , Haowei Zhu , Min Wu , Yuanchun Zhou , Meng Xiao