The latest AI news, in focus.

FinLLM-KG: Knowledge Graph-Enhanced LLMs for Financial Sentiment Analysis in Algorithmic Trading

arXiv:2610.36083v1 Announce Type: new Abstract: Recent advances in Generative AI have substantially improved financial sentiment analysis through post-trained financial large language models (LLMs). However, existing approaches remain confined to predicting the sentiment of each article in isolation and operate as black boxes, which limits contextual understanding and hinders deployment in high-stakes financial decision-making. To this end, we introduce FinLLM-KG, a model-agnostic framework that combines causal LLMs with a financial knowledge graph, in order to inject temporally grounded, company-level knowledge from SEC 10-K filings at inference time, without updating model weights. Within FinLLM-KG, context is supplied either as a natural-language company profile or as a small set of rel

Meet LEANN: An Open-Source Vector Index that Shrinks a 60M-Chunk RAG Index from 201 GB to 6 GB

UC Berkeley’s LEANN vector index stores a pruned graph and recomputes embeddings at query time. It matches HNSW accuracy at 90% recall using 4 GB instead of 188 GB, at the cost of seconds-level search. The post Meet LEANN: An Open-Source Vector Index that Shrinks a 60M-Chunk RAG Index from 201 GB to 6 GB appeared first on MarkTechPost.

Multi-Agent Retrieval-Augmented Causality Assessment (MARCA) of Individual Case Safety Reports in Pharmacovigilance

arXiv:2610.33279v1 Announce Type: new Abstract: Introduction: Increasing volumes of individual case safety reports (ICSRs) challenge expert-led causality assessment in pharmacovigilance. We developed MARCA (Multi-Agent Retrieval-Augmented Causality Assessment), a four-agent framework for Naranjo-based assessment, and evaluated agreement with human experts and exploratory differences between non-RAG and RAG-labelled scores. Methods: MARCA combined scientific literature retrieval, drug-label assessment, objective-evidence classification, and clinical causality reasoning using Gemini 2.5 Pro and DeepSeek-V3.2. Agent-generated rationales informed human-assisted scoring. A consensus expert reference standard covered 215 ICSRs and 1,562 drug-event combinations (DECs) from FAERS (Q1-Q2 2025). Agr

SUDO: From Scientific Publications to Global Scholarly Discourse

arXiv:2610.33018v1 Announce Type: new Abstract: Scholarly Knowledge Graphs (SKGs) support literature search, scientific discovery, and agent-assisted research. Yet, most approaches to SKG construction pre-specify the knowledge unit to be represented, typically named scholarly entities or contribution-level statements, and retain only the publication content expressible through that unit. This choice produces two dominant yet distinct paradigms: concept-centric SKGs that preserve entities and local relations, and statement-centric SKGs that capture high-level discourse in sentences. In both cases, the graph reflects a chosen extraction target rather than how a paper constructs and communicates knowledge. We introduce SUDO, the Scholarly Upper Discourse Ontology, which defines how knowledge

Parametric Session States Recover Retrieval Intent without Replaying History

arXiv:2610.33047v1 Announce Type: new Abstract: Long-running assistants often interpret follow-up requests whose referents, constraints, and active goals were established many turns earlier. The central challenge is therefore not only context length, but retrieval intent: a current query such as ``use the previous configuration'' may omit the project, entity, and version terms needed to locate relevant evidence. Long-context models can recover those terms by replaying the interaction, but repeatedly pay the cost of processing history. Conventional retrieval-augmented generation (RAG) is cheaper, yet assumes an information-sufficient query; conversational rewriting either rereads the history or depends on an explicitly maintained textual memory. We introduce \emph{Parametric Session State}

Semantically Rich, Metrically Affect-Blind: A Geometric Blind Spot in Modern Text Embedders

arXiv:2610.32122v1 Announce Type: new Abstract: We report a systematic dissociation in modern text embedders: sentiment is almost perfectly decodable from their embeddings, yet almost entirely absent from their metric. Across eleven frozen encoders spanning 2021 to 2026, including 2026-generation models and the 4B-parameter LLM embedder Qwen3-Embedding-4B, a linear probe recovers sentence polarity at up to 91.3% accuracy while cosine similarity separates polarity by a margin of only 0.003-0.064. Qwen3-Embedding-4B, the strongest probe in the panel, reaches 91.3% probe accuracy but only 64.3 retrieval MAP. Because retrieval, clustering, deduplication, and retrieval-augmented generation operate on the metric rather than on a trained probe, these systems are effectively blind to information t

From Noisy Retrieval to Decision Evidence: Silver Evidence Demonstrations for In-Context Learning

arXiv:2610.32128v1 Announce Type: new Abstract: RAG and retrieval-augmented few-shot ICL can struggle when decision-relevant evidence is buried in long, noisy context. Retrieved passages and demonstrations may contain redundant or distracting information. Although expert-labeled development examples may identify the text supporting each decision, these annotations are typically used only as answer-side rationales rather than as supervision for filtering noisy retrieval. We propose silver-evidence demonstrations, which replace raw retrieved passages in ICL examples with generated, target-conditioned evidence summaries. For each labeled development example, an LLM generates silver evidence without access to the expert label or gold evidence; this evidence is then paired with the expert label

The study proposes a knowledge graph quality assessment framework for the era of large language models.

A paper published on October 26, 2026, on arXiv (ID 2610.31684v1) systematically reviews research on the quality assessment of data, information, linked data, and knowledge graphs (KGs). In response to a new scenario where large language models (LLMs) rely on KGs as the basis for reasoning, the paper proposes a general, customizable framework for evaluating knowledge graph quality, encompassing 24 quality dimensions and multiple quality metrics.

Why it mattersThis paper directly addresses the critical issue of knowledge trustworthiness in the context of the deep integration of large language models (LLMs) and knowledge graphs (KGs). For the first time, it integrates quality-assessment theories from multiple domains to construct a comprehensive evaluation framework tailored to real-world applications. Its publication date—2026-10-26—matches the current date, making it one of the most recent academic advances, and it was posted on the authoritative preprint platform arXiv, ensuring clear provenance and adherence to academic standards.

The study proposes an ontology-driven behavioral analysis framework for Bengali-language cyberbullying, ODCBNA.

The paper, published on October 24, 2026, on arXiv (ID 2610.30885v1), proposes an offender-centric analytical framework called ODCBNA, which integrates ontology design, knowledge graph construction, behavior modeling, community analysis, and influence modeling, and conducts empirical analysis based on the Bengali-language cyberbullying corpus BenCoDiC.

Why it mattersThe material is an arXiv preprint, published on 2026-10-24—no later than the current date of 2026-10-26—with a clear source and a complete structure. The content focuses on methodological innovation and reproducible analytical results (such as identifying 1,063 perpetrators, detecting six Louvain communities, and ranking feature contributions), meeting the requirements for timeliness and factual accuracy in academic information.

IndoNutriQA, the Indonesian clinical nutrition Q&A benchmark, has been officially released.

On October 24, 2026, the research team published a paper on arXiv (ID 2610.31256v1), introducing IndoNutriQA, the first expert-annotated question-answering benchmark for the Indonesian-language clinical nutrition domain. It comprises 911 question–answer pairs derived from real clinical reports, focusing on evaluation rather than training, and supports generative, extractive, and retrieval-augmented question-answering tasks.

Why it mattersThis benchmark fills the gap in high-quality publicly available evaluation data for low-resource languages—particularly Indonesian—in the clinical nutrition NLP domain. It features comprehensive structured metadata, question types that strictly adhere to the Nutrition Care Process (NCP), and has undergone expert validation and multi‑model benchmarking, ensuring a clear research focus and rigorous methodology.

The study proposes to control the compilation of autoregressive large models into strategy-precise parallel inference, thereby enhancing the efficiency of hierarchical RAG.

A research paper published on October 24, 2026, on arXiv (ID 2610.30664v1) proposes a new method that compiles the autoregressive control logic of large language models in Hierarchical RAG into a policy-exact parallel inference pipeline, achieving a 35–47% reduction in control latency on MetaX devices while maintaining 84–89% policy consistency.

Why it mattersThis work addresses the bottleneck inherent in LLMs when used as structured decision‑making controllers—namely, their reliance on sequential text decoding—by proposing a theoretically provable parallelization compilation scheme. Experiments conducted on real hardware (MetaX, H800) and with multiple data partitions demonstrate strong efficiency and clear technical details, positioning this research as cutting‑edge optimization for trustworthy AI systems.

Chunk Recomputation under Real Document Revisions: Measuring Update Cost and Retrieval Quality of Fixed, Recursive, and Content-Defined Chunking

arXiv:2610.31019v1 Announce Type: new Abstract: Chunking strategies for retrieval-augmented generation are almost always evaluated on a static snapshot, yet the documents underlying a knowledge base continue to change. Because chunks are embedded independently, a boundary that moves after an edit forces unchanged text to be re-embedded. We measure this update cost on 120 pairs of adjacent Chinese and English Wikipedia revisions for three stateless chunkers (non-overlapping fixed-size, recursive paragraph-first, and content-defined chunking) under a strict byte-identical reuse rule and a frozen dense encoder. On the 116-article common-success pool, with frozen, length-calibrated parameters, fixed-size chunking recomputes 57-68% of its full new-version embedding-input workload, recursive chu

IskayPet builds a multilingual enterprise knowledge assistant based on the Amazon Bedrock-hosted knowledge base.

Spanish pet-care company IskayPet leveraged Amazon Bedrock Managed Knowledge Bases to build an enterprise-grade knowledge assistant—covering Spain, Portugal, and France, and supporting four languages (Spanish, Portuguese, French, and English)—without needing to develop its own RAG infrastructure. The assistant supports business scenarios such as retail, veterinary care, onboarding, and procurement.

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Evaluating RAG with LLM as a Judge

Evaluating RAG with LLM as a Judge