All articles
arxiv arXiv cs.CL · 4h ago

Assessing Post-Reform Changes in Risk Disclosure Quality with a Multidimensional Text Analysis Approach

This study proposes a longitudinal text analysis framework combining Japanese-language NLP metric extraction with paired testing and shift function analysis to evaluate qualitative changes in corporate risk disclosures. Applied to Japan's 2019 disclosure reforms, the approach analyzes 19,770 firm-year observations over ten years to capture multidimensional dynamics often masked by single-indicator methods.

arxiv arXiv cs.CL · 5h ago

Mapping Political-Elite Networks in Europe with a Multilingual Joint Entity-Relation Extraction Pipeline

Researchers present a modular, fully open-weight pipeline for multilingual joint entity-relation extraction that builds signed, temporal knowledge graphs from massive unstructured news corpora. The system combines span-based named-entity recognition with a linking cascade to Wikidata and an ontology-constrained mixture-of-experts model to extract directed relationships.

arxiv arXiv cs.CL · 5h ago

Nemotron-TwoTower: Diffusion Language Modeling with Pretrained Autoregressive Context

NVIDIA introduces Nemotron-TwoTower, a diffusion language model that decouples context representation and iterative denoising into two separate networks to overcome capacity limitations in existing approaches. Built on the open-weight Nemotron-3-Nano-30B-A3B model and trained on 2.1T tokens, it retains 98.7% of the autoregressive baseline's quality while achieving 2.42X higher wall-clock generation throughput.

arxiv arXiv cs.CL · 5h ago

MemStrata: Eliminating Stale-Fact Errors in RAG Agents via Temporal Validity

The article introduces MemStrata, a retrieval memory system designed to eliminate stale-fact errors in AI agents by maintaining temporal validity within accumulated knowledge. Unlike standard Retrieval-Augmented Generation (RAG), which struggles to distinguish between duplicated and contradicted facts due to embedding similarity, MemStrata uses a deterministic supersession rule to retire outdated information.

arxiv arXiv cs.CL · 7h ago

SocialPersona: Benchmarking Personalized Profiling and Response with Multimodal Social-Media Context

The authors introduce SocialPersona, a benchmark designed to evaluate whether multimodal large language models (MLLMs) can recover revealed preferences from longitudinal social-media timelines and use them in dialogue. This work addresses the limitation of current evaluations that focus only on explicit memory by testing a model's ability to infer interests from natural multimodal traces.