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Jicong Fan

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#artificial intelligence Preprint Oct 2026

Recall What Is Missing: Composing Evidence from Long-Term Agent Memory

Under a limited context budget, a long-term agent must recall not merely memories that are individually relevant, but evidence that is collectively sufficient for the current query. Conventional memory access retrieves, scores, and truncates memories, often spending multiple context slots on redundant facts while leavi...

Qi Feng, Ji-Cong Fan · 0 citations
#machine learning Preprint Sep 2026

GLASS: Graph-Language Alignment with Spherical Scoring for Transferable Graph-Level Anomaly Detection

GLASS is introduced, a framework for graph-level anomaly detection (GLAD) that achieves robust cross-domain transferability through graph-language alignment on the unit hypersphere and Spherical Multi-Modal Scoring (SMS), which instantiates von Mises-Fisher kernel density estimators in both graph and text embedding spa...

Xu-Dong Wang, Chris Ding, Tong-Xin Li et al. · 0 citations
#small language model Preprint Aug 2026

The Retriever Should Remember: Experience-Amortized Reranking for Long-Term Agent Memory

Experiments on long-term conversational memory show that mixed observed-and-estimated reranking improves answer accuracy over semantic retrieval by up to 6.62% and remains effective when only 17.5% of candidates receive direct LLM relevance scores, thereby substantially reducing the inference overhead of LLM reranking.

Qi Feng, Chris Ding, Ji-Cong Fan · 2 citations
Preprint Aug 2026

Mapping and Measuring the Behavioral Evolution of Large Language Models

An architecture-agnostic sufficient condition is established linking behavioral similarity to inference-prompt coverage, small excess population log-loss, and similar effective target distributions---a possible training-side account rather than an empirical explanation of the observed trends.

Dong Qiao, Chris Ding, Jicong Fan · 0 citations

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