Bighead's Algorithm Notes
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Bighead's Algorithm Notes

Focused on AI applications in the fintech sector

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Bighead's Algorithm Notes
Bighead's Algorithm Notes
Sep 20, 2026 · Artificial Intelligence

CoLAS: Multimodal Corroboration Mining for Reliable Financial Trading Signals

This paper introduces CoLAS, a framework that explicitly models multimodal corroboration—non-cancelling support across heterogeneous financial modalities—to extract more reliable trading signals, achieving over 25% average annualized return improvement across six datasets including five stocks and Bitcoin.

Multimodal Learningcorroboration miningcryptocurrency trading
0 likes · 18 min read
CoLAS: Multimodal Corroboration Mining for Reliable Financial Trading Signals
Bighead's Algorithm Notes
Bighead's Algorithm Notes
Sep 11, 2026 · Artificial Intelligence

AlphaSchema: Semantic Space Exploration Reshapes LLM Alpha Mining

AlphaSchema introduces a structured trading semantic space with five-dimensional schema plans to decouple exploration from LLM implementation, using a surrogate model and quota-based selection to discover high-performing factors that outperform baselines on China A-share markets while demonstrating robustness across LLM backends.

AlphaSchemaChina A-shareLLM alpha mining
0 likes · 19 min read
AlphaSchema: Semantic Space Exploration Reshapes LLM Alpha Mining
Bighead's Algorithm Notes
Bighead's Algorithm Notes
Sep 7, 2026 · Artificial Intelligence

MAPLE: Single-Training Multi-Alpha Framework for Diversified Portfolios

MAPLE introduces a backbone-agnostic framework that generates multiple diverse alpha signals in a single training run by combining a unified capacity-scaled prediction head, extreme rank-weighted listwise loss, and explicit diversity regularization, achieving superior Sharpe and Calmar ratios across four global equity markets with 55x fewer parameters than MoE baselines.

MAPLEdeep learningdiversity regularization
0 likes · 22 min read
MAPLE: Single-Training Multi-Alpha Framework for Diversified Portfolios
Bighead's Algorithm Notes
Bighead's Algorithm Notes
Sep 3, 2026 · Artificial Intelligence

LLM Compression of Financial Texts Alters Decisions Despite Factual Accuracy

A new arXiv paper introduces Information Fidelity to measure how LLM compression of 10-Q MD&A sections and earnings calls changes downstream investment decisions, identifying decontextualization and model dependency as key failure modes and proposing Agentic Context Compression (ACC) to audit and reduce decision flips.

10-Q MD&ALLM compressionagentic context compression
0 likes · 22 min read
LLM Compression of Financial Texts Alters Decisions Despite Factual Accuracy
Bighead's Algorithm Notes
Bighead's Algorithm Notes
Sep 1, 2026 · Artificial Intelligence

XAlpha: AI Quant Researcher with Memory & Reflection for Alpha Discovery

XAlpha introduces a memory-driven AI quantitative researcher that automates the full hypothesis-to-code alpha discovery loop via a multi-brain architecture, integrating report knowledge, hypothesis planning, factor evolution, empirical validation, and feedback integration, achieving superior performance on CSI300.

AI quantitative researcherCSI300LLM Agents
0 likes · 35 min read
XAlpha: AI Quant Researcher with Memory & Reflection for Alpha Discovery
Bighead's Algorithm Notes
Bighead's Algorithm Notes
Aug 30, 2026 · Artificial Intelligence

EvoQuant: How Large Language Models Can Self‑Evolve as Quantitative Researchers

EvoQuant introduces a self‑evolving, validator‑guided framework that lets large language models diagnose, propose, and verify improvements to existing quantitative trading strategies, achieving Sharpe ratio gains of up to 199% across A‑share and cryptocurrency benchmarks while demonstrating robustness through ablation and walk‑forward tests.

EvoQuantSharpe ratioablation study
0 likes · 19 min read
EvoQuant: How Large Language Models Can Self‑Evolve as Quantitative Researchers
Bighead's Algorithm Notes
Bighead's Algorithm Notes
Aug 27, 2026 · Artificial Intelligence

MetaPS: Adaptive Strategy Selection for Financial Markets Using Simulated Supervision

The article analyzes MetaPS, a simulation‑guided framework that adaptively selects executable trading programs from a strategy library, showing that supervised meta‑strategy learning improves returns across 0.8B‑9B parameter models and outperforms fixed‑strategy baselines, direct decision agents, and prompt‑based LLM agents in both stock and sandbox environments.

Large Language ModelsMetaPSadaptive strategy selection
0 likes · 12 min read
MetaPS: Adaptive Strategy Selection for Financial Markets Using Simulated Supervision
Bighead's Algorithm Notes
Bighead's Algorithm Notes
Aug 26, 2026 · Artificial Intelligence

How AlphaMemo Enables Self‑Evolving Alpha Factor Mining with Structured Search Memory

AlphaMemo introduces a structured‑search‑process memory for LLM agents that records effective and failed edit patterns in specific parent‑factor contexts, uses AST‑difference extraction, confidence‑gated residual learning, and asymmetric veto to tackle combinatorial search, noisy feedback, redundancy, and over‑fitting, achieving superior out‑of‑sample performance and discovery efficiency on CSI 500 and S&P 500 benchmarks.

AST diffAlpha factor miningAlphaMemo
0 likes · 18 min read
How AlphaMemo Enables Self‑Evolving Alpha Factor Mining with Structured Search Memory