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Dennis Wu

10 accepted papers

2026

AdvEvo-MARL: Shaping Internalized Safety through Adversarial Co-Evolution in Multi-Agent Reinforcement Learning

ICML 2026poster

LLM-based multi-agent systems excel at planning, tool use, and role coordination, but their openness and interaction complexity also expose them to jailbreak and adversarial collaboration. Existing defenses fall into two lines: (i) self-verification that asks each agent to pre-filter unsafe instruct…

Cited by 0SourceScholar
2026

Hyperbolic neural population geometry benefits computation

ICML 2026poster

Neural population geometry shapes downstream inference. Recent findings in neurobiology suggest that a hyperbolic structure underlies population activity. However, a theoretical framework for this phenomenon is still lacking. Here, we propose a plausible construction of hippocampal tuning curves tha…

Cited by 0SourceScholar
2026

StarEmbed: Benchmarking Time Series Foundation Models on Astronomical Observations of Variable Stars

ICML 2026poster

Time series foundation models (TSFMs) are increasingly adopted as general-purpose time series learners. Although their training corpora are vast, they exclude peta-scale astronomical time series that exhibit unique challenges (e.g., irregular sampling, multiple variates, and heteroskedasticity) and …

Cited by 0SourceScholar
2026

UNDERSTANDING TRANSFORMERS FOR TIME SEIRES FORECASTING: A CASE STUDY ON MOIRAI

ICLR 2026poster

We give a comprehensive theoretical analysis of transformers as time series pre- diction models, with a focus on MOIRAI (Woo et al., 2024). We study its ap- proximation and generalization capabilities. First, we demonstrate that there exist transformers that fit an autoregressive model on input univ…

Cited by 0SourcecodeScholar
2024

Provably Optimal Memory Capacity for Modern Hopfield Models: Transformer-Compatible Dense Associative Memories as Spherical Codes

NeurIPS 2024poster

We study the optimal memorization capacity of modern Hopfield models and Kernelized Hopfield Models (KHMs), a transformer-compatible class of Dense Associative Memories. We present a tight analysis by establishing a connection between the memory configuration of KHMs and spherical codes from informa…

Cited by 16SourcePDFScholar
2024

STanHop: Sparse Tandem Hopfield Model for Memory-Enhanced Time Series Prediction

ICLR 2024poster

We present **STanHop-Net** (**S**parse **Tan**dem **Hop**field **Net**work) for multivariate time series prediction with memory-enhanced capabilities. At the heart of our approach is **STanHop**, a novel Hopfield-based neural network block, which sparsely learns and stores both temporal and cross-se…

Cited by 47SourcePDFScholar
2024

Uniform Memory Retrieval with Larger Capacity for Modern Hopfield Models

ICML 2024poster

We propose a two-stage optimization formulation for the memory retrieval dynamics of modern Hopfield models, termed $\mathtt{U\text{-}Hop}$. Our key contribution is a learnable feature map $\Phi$ which transforms the Hopfield energy function into a kernel space. This transformation ensures convergen…

2023

HonestBait: Forward References for Attractive but Faithful Headline Generation

ACL 2023findings

Current methods for generating attractive headlines often learn directly from data, which bases attractiveness on the number of user clicks and views. Although clicks or views do reflect user interest, they can fail to reveal how much interest is raised by the writing style and how much is due to th…

Cited by 2SourcePDFScholar
2023

On Sparse Modern Hopfield Model

NeurIPS 2023poster

We introduce the sparse modern Hopfield model as a sparse extension of the modern Hopfield model. Like its dense counterpart, the sparse modern Hopfield model equips a memory-retrieval dynamics whose one-step approximation corresponds to the sparse attention mechanism. Theoretically, our key contri…