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notes

Crew Ai Note

Published:

The Summary of Crewai course: Multi AI Agent Systems with crewAI

LLM 核心原理深度解析 Permalink

Published:

从基础到前沿的系统化大模型原理解析 — 六章覆盖 Transformer / 预训练 / 人类对齐 / MoE / RoPE / 推理优化。

LLM 大规模训练与部署 Permalink

Published:

分布式训练并行策略 + 推理服务化 + 量化压缩 + 生产部署 — 一份覆盖从单机多卡到千卡集群、从理论推导到工程指标的系统笔记。

portfolio

publications

Analyst Reports and Stock Performance: Evidence from the Chinese Market

Published in Asia-Pacific Financial Markets, 2025

Used a fine-tuned BERT sentiment classifier on Chinese sell-side analyst reports to test whether textual tone predicts cross-sectional returns in the A-share market. Accepted at Asia-Pacific Financial Markets.

Recommended citation: Liu, R., Liang, J., Chen, H., & Hu, Y. (2025). "Analyst Reports and Stock Performance: Evidence from the Chinese Market." Asia-Pacific Financial Markets.
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Faster Adaptive Optimization via Expected Gradient Outer Product Reparameterization

Published in SIAM Journal on Mathematics of Data Science (under review), 2025

Tightens Adagrad/Adam convergence bounds by a factor of 1/d via EGOP-based reparameterization, and proposes Auxiliary-Variable and Reduced EGOP algorithms that bypass the storage/compute bottleneck of full-matrix preconditioning. Submitted to SIMODS.

Recommended citation: DePavia, A., Cruzado, J., Liang, J., Charisopoulos, V., & Willett, R. (2025). "Faster Adaptive Optimization via Expected Gradient Outer Product Reparameterization." Submitted to SIAM Journal on Mathematics of Data Science (SIMODS).
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Validating Two Pathological Foundation Models for Breast Biomarker Detection

Published in In preparation, 2025

First study transferring Direct Preference Optimization (DPO) from LLM alignment to computational pathology. A label-free preference-pair pipeline (UMAP + DBSCAN on TITAN embeddings) plus LoRA-DPO fine-tuning lifts PR-status AUROC from 79.75% to 81.92% and Cohen’s κ from 45.40% to 54.43%. In preparation.

Recommended citation: Atiya, S., Liang, J., et al. (2025). "Validating Two Pathological Foundation Models for Breast Biomarker Detection." In preparation.

talks

teaching

Teaching experience 1

Undergraduate course, University 1, Department, 2014

This is a description of a teaching experience. You can use markdown like any other post.

Teaching experience 2

Workshop, University 1, Department, 2015

This is a description of a teaching experience. You can use markdown like any other post.