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Danai Koutra

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Book Open access Aug 2026

The Second Workshop on SciSoc Agents & LLMs: Agentic AI for Scientific and Societal Advances

The Second Workshop on SciSoc Agents & LLMs: Agentic AI for Scientific and Societal Advances aims to explore the emerging paradigm of agentic artificial intelligence, where Large Language Models (LLMs) are combined with autonomous agents, tools, memory, and multi-step reasoning to drive scientific discovery and address...

Jia-Yuan Ding, Wei Jin, Carl Yang et al. · 0 citations
#machine learning Preprint Sep 2026

Edge-Level Automorphism in GNNs: A Quantitative Framework and Effective Designs For Link Prediction

A novel quantitative framework to assess GNN expressiveness for link prediction is introduced, and the edge automorphism ratio (EAR) is introduced, a scalar metric that quantifies a GNN's ability to distinguish links in a given graph.

Shao-Wei Chen, Donald Loveland, Tobias Käfer et al. · 0 citations
Preprint Aug 2026

Preserving Item Semantics for Free: Rethinking Token Initialization in LLM-Based Generative Recommendation

This work proposes a simple, parameter-free intervention that initializes SID token embeddings directly from their corresponding centroids in the semantic embedding space, and shows that preserving SID geometry, beyond shared-prefix structure, provides a simple and effective semantic prior for LLM-based GR.

Donald Loveland, Liam Collins, B. Kumar et al. · 0 citations

When GNNs Fail: Quantifying and Overcoming Temporal Correlation Volatility in Time Series

This work proposes Graph Layer for Inference in Dynamic En- vironments (GLIDE), a novel GNN layer enhanced by two theoretically grounded design mechanisms that significantly improve learning under dynamic topology while preserving robustness in static scenarios.

Chen Shao, Yue Wang, Zhen-Yi Zhu et al. · 1 citation

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