4 papers
Tutorial on Reasoning for IR & IR for Reasoning
Mohanna Hoveyda, Panagiotis Efstratiadis, Arjen de Vries +1
Information retrieval has long focused on ranking documents by semantic relatedness. Yet many real-world information needs demand more: enforcement of logical constraints, multi-st…
Information Leakage of Sentence Embeddings via Generative Embedding Inversion Attacks
Antonios Tragoudaras, Theofanis Aslanidis, Emmanouil Georgios Lionis +2
Text data are often encoded as dense vectors, known as embeddings, which capture semantic, syntactic, contextual, and domain-specific information. These embeddings, widely adopted…
Agent-centric Information Access
Evangelos Kanoulas, Panagiotis Eustratiadis, Yongkang Li +5
As large language models (LLMs) become more specialized, we envision a future where millions of expert LLMs exist, each trained on proprietary data and excelling in specific domain…
Reproducing HotFlip for Corpus Poisoning Attacks in Dense Retrieval
Yongkang Li, Panagiotis Eustratiadis, Evangelos Kanoulas
HotFlip is a topical gradient-based word substitution method for attacking language models. Recently, this method has been further applied to attack retrieval systems by generating…