Weixian Waylon Li
Waylon Li

PhD Candidate in AIAI

  • PhD in AIAI

    University of Edinburgh

  • Master by Research in ILCC

    University of Edinburgh

  • BSc Artificial Intelligence

    University of Edinburgh

  • BSc Applied Mathematics

    South China University of Techonology

About Me

I am a PhD candidate at the Artificial Intelligence Applications Institute (AIAI), School of Informatics, University of Edinburgh, advised by Prof. Tiejun Ma. I previously completed an MRes at the Institute for Language, Cognition and Computation (ILCC), University of Edinburgh, advised by Prof. Shay Cohen.

My research focuses on algorithmic foundations for large language models and learning-to-rank / retrieval, and on how these advances can be translated into robust solutions for financial AI. Around this, my interests span:

  1. LLM fundamental algorithms — developing training-free and efficient inference-time methods for controllable and reliable LLM behavior, especially attention steering under modern optimized kernels. { SEKA (ICLR 2026) }

  2. Learning-to-rank and retrieval — designing ranking algorithms that better combine pairwise signals with global listwise structure for stronger and more stable ranking performance across domains. { TSPRank (KDD 2025), MATcH (EACL 2023) }

  3. Financial AI applications — applying LLM and ranking breakthroughs to high-stakes financial tasks, including trader risk ranking and long-horizon evaluation of LLM-based investment strategies. { PA-RiskRanker (TOIS 2025), FINSABER (KDD 2026), SynthRank (AAAI 2024) }

I have multiple first-author papers at leading venues, including ICLR, KDD, TOIS, and EACL. Additionally, I have industrial experience as a researcher at Tencent Lightspeed Studio, Huawei Technologies Research & Development (UK) Ltd, and The Alan Turing Institute. I have also contributed to teaching several courses related to machine learning and natural language processing at the University of Edinburgh.

Overall, my work is driven by a single question: how to make algorithmic advances that matter, and how to deploy them reliably in high-stakes real-world decision-making.

Download CV

Recent News

All news >>
2026
Our paper “Spectral Attention Steering for Prompt Highlighting” is accepted by ICLR 2026
Jan.
2025
Gave a joint talk with Prof. Tiejun Ma at CBG Cloud Service Ireland AI Applications Workshop 2025
Nov.
Our paper “Can LLM-based Financial Investing Strategies Outperform the Market in Long Run?” is accepted by KDD 2026
Nov.
Start a new internship at Tencent IEG Lightspeed Studios UK as an NLP researcher
Nov.
One paper accepted by ACM Transactions on Information Systems (TOIS)
Sep.

Professional Experience

All experience >>
  1. NLP Research Intern

    Tencent Lightspeed Studio
  2. RAG Intern Strategic Researcher

    Huawei Technologies Research & Development (UK) Ltd - 2012 Laboratories
  3. Research Assistant

    The Alan Turing Institute
  4. System Engineer

    International Business Machine Corporation
  5. Big Data Platform Engineer

    China Unicom

Selected publications

All publications >>
Filter:
Latest Blog Posts
The blog posts have been moved to my Notion site, which offers easier formatting and better design.