研究库 论文知识库
Papers · organized/paper_cards

论文

1171 张论文卡片 · 方法

开放获取 全部 绿色 · 1640
DreamX-Creator: Democratizing Native Audio-Video Generation at 2K Resolution
DreamX-Creator:在 2K 分辨率下实现原生音视频生成的民主化
arXiv:2608.31106 多模态 方法 OA · 绿色 被引 0 · S2 + OpenAlex

通过发布紧凑的 7B 生成器和 2K Refiner,该工作致力于使原生音视频生成平民化,并为统一音视频生成建模的未来研究提供可及的基础。By releasing the compact 7B generator and 2K Refiner, this work seeks to democratize native audio-video generation and provide an accessible foundation for future research in unified audio-video generative modeling.

Chain-of-Thought Faithfulness of Reasoning Models Varies with Where and How Preference Cues Are Delivered
思维链忠实性随偏好线索的传递位置与方式而变化
arXiv:2608.29464 评测基准 方法 OA · 绿色 被引 1 · S2

结果表明,在所测试的单调用、预填工具场景下,当偏好信息通过工具传入或需从原始产物中推断时,CoT 监控的可靠性可能下降。The results suggest that CoT monitoring may be less reliable when preference information arrives through tools or must be inferred from raw artifacts, within the single-call, prefilled-tool setting tested here.

SafeAtlas-VL: Beyond Binary Multimodal Safety with Large-Scale Data and Guard Models
SafeAtlas-VL:超越二元判断的大规模多模态安全数据与防护模型
arXiv:2608.29098 安全与风险 方法 OA · 绿色 被引 0 · S2 + OpenAlex

该论文提出 SafeAtlas-VL,一个包含 1.5M 训练实例的数据集,将图像、请求和响应级判断置于五级有序量表上,并通过 target-conditioned tuning 训练 SafeAtlas Guard 系列模型,用于多模态安全检测。This paper introduces SafeAtlas-VL, a dataset of 1.5M training instances that places image-, request-, and response-level judgments on a five-level ordered scale, and trains the SafeAtlas Guard series of models via target-conditioned tuning for multimodal safety detection.

Chat-Edit-3D++: Interactive 3D and 4D Scene Editing via Large Language Models
Chat-Edit-3D++:基于大语言模型的交互式 3D 与 4D 场景编辑
arXiv:2608.29137 多模态 方法 OA · 绿色 被引 1 · S2

提出 Hash-Atlas 网络,将 3D 场景编辑重新表述为对 2D atlas 图像的操作,从而实现 2D 编辑与 3D 重建流程的解耦。The Hash-Atlas network is proposed, which reformulates 3D scene editing as operations on 2D atlas images, thereby achieving a workflow decoupling of the 2D editing and 3D reconstruction processes.

Evaluating the Hidden Costs of Personalization in Large Language Models
评估大语言模型个性化中的隐性代价
arXiv:2608.28833 评测基准 方法 OA · 绿色 被引 0 · S2 + OpenAlex

提出 PRISK,一个具备自动化数据生成和定制化指标的动态评估框架,用于揭示当前 LLM 个性化中的系统性局限以及个性化信息如何塑造其响应。PRISK is proposed, a dynamic evaluation framework with automated data generation and tailored metrics that uncovers systematic limitations in current LLM personalization and how personalized information shapes its responses.

Unsupervised Learning of Video Representations using LSTMs
基于 LSTM 的视频表示无监督学习
arXiv:1502.04681 多模态 方法 OA · 绿色 被引 2770 · S2

本文利用 LSTM 网络学习视频序列表示,并通过在 UCF-101 与 HMDB-51 数据集上对人体动作识别这一监督学习任务进行微调来评估所学表示。This work uses Long Short Term Memory networks to learn representations of video sequences and evaluates the representations by finetuning them for a supervised learning problem - human action recognition on the UCF-101 and HMDB-51 datasets.

Uncertainty-Aware End-to-End AI Weather Forecasting: Disentangling Observation and Model Contributions
感知不确定性的端到端 AI 天气预报:分离观测与模型的贡献
arXiv:2608.30795 LLM 基础设施 方法 OA · 绿色 被引 0 · S2 + OpenAlex

端到端天气预报系统直接从原始地球观测数据生成高质量的全球网格与站点预报,仅以数值天气预报流水线(含数据同化)一小部分的成本取而代之。这类系统是确定性的,不输出不确定性结果。本文通过在每个组件上附加一种随机机制,将 Aardvark Weather 模型概率化:在观测编码器中加入学习到的、依赖输入的噪声,以捕捉源自观测系统的偶然不确定性;在处理器中使用 Monte Carlo dropout,以捕捉认知不确定性。End-to-end weather forecasting systems produce skillful global gridded and station forecasts directly from raw Earth observations, replacing the numerical weather prediction pipeline, including data assimilation, at a fraction of its cost. These systems are deterministic and issue no uncertainty. Here we render the Aardvark Weather model probabilistic by attaching one stochastic mechanism to each component: learned, input-dependent noise at the observation encoder, capturing aleatoric uncertainty inherited from the observing system, and Monte Carlo dropout in the processor, capturing epistemic

SpanCalib-VLM: Calibrated Hallucination Span Detection in Vision-Language Models
SpanCalib-VLM:视觉语言模型中校准的幻觉片段检测
arXiv:2608.29974 多模态 方法 OA · 绿色 被引 0 · S2 + OpenAlex

提出 SpanCalib-VLM,这是一种用于 SHROOM-Visions 共享任务的混合双系统,结合了多模态序列标注器(由 XLM-RoBERTa-Large 与 SigLIP 视觉编码器通过交叉注意力融合而成)与微调后的生成式 VLM(Qwen3.5-4B-SHROOM-SFT)。SpanCalib-VLM is presented, a hybrid dual-system for the SHROOM-Visions Shared Task that combines a multimodal sequence tagger, consisting of XLM-RoBERTa-Large fused with a SigLIP vision encoder via cross-attention, with the fine-tuned generative VLM (Qwen3.5-4B-SHROOM-SFT).

MMMMM: A Unified Taxonomy for Investigating the Mechanisms of Multilingual MultiModal Misinformation
MMMMM:用于研究多语言多模态虚假信息机制的统一分类法
arXiv:2608.29681 多模态 方法 OA · 绿色 被引 0 · S2 + OpenAlex

基于对数据的深入定性分析和既有理论研究,构建了一套新颖且全面的多模态错误信息分类法,并由此获得了关于社交媒体用户如何在实际场景中将图像与文本结合以传播错误信息的此前未被记录的洞见。A novel, comprehensive taxonomy of multimodal misinformation grounded in an in-depth qualitative analysis of the data and prior theoretical work is developed, which leads to previously undocumented insights about how social media users combine images with text to spread misinformation in the wild.

RECAP-Forcing: Retaining Content Appearances for Long Video Generation
RECAP-Forcing:面向长视频生成的内容外观保持方法
arXiv:2608.26671 多模态 方法 OA · 绿色 被引 2 · S2

本文提出 RECAP-Forcing,一种无需训练的推理方法,不增加任何可学习参数,在多个强基线上稳定提升视觉质量与语义保真度,并优于现有记忆方法。This work proposes RECAP-Forcing, a training-free inference method with no additional learnable parameters that consistently improves visual quality and semantic fidelity across multiple strong baselines and outperforms existing memory methods.

SMELT: Scaling Laws for Compute-Matched MoE Looped Transformers
SMELT:面向计算匹配的 MoE 循环 Transformer 的扩展定律
arXiv:2609.01343 RAG 检索增强 方法 OA · 绿色 被引 13 · S2

结果表明,即便在算力预算匹配的前提下,循环(looping)仍可提升 Transformer,提供了一种将深度复用转化为可衡量增益的实用方案。Results show that looping can improve Transformers even under budget matching, offering a practical recipe that turns depth reuse into measurable gains.

Safin-1: Safety from Within through Memory-Native State Evolution
Safin-1:通过记忆原生状态演化实现内在安全
arXiv:2609.00092 安全与风险 方法 OA · 绿色 被引 0 · S2 + OpenAlex

路由状态接口在模型的原生计算中统一了上下文记忆与持久的能力适配,将记忆从对历史上下文的被动记录重塑为维持与演化模型行为的主动基质。The routed-state interface unifies contextual memory and persistent capability adaptation within the model's native computation, reframing memory from a passive record of prior context into an active substrate for maintaining and evolving model behavior.

DiagEvo: Diagnosis-Guided Self-Evolution via Hierarchical Error Memory
DiagEvo:通过分层错误记忆实现的诊断引导自我演化
arXiv:2609.00768 LLM 基础设施 方法 OA · 绿色 被引 1 · S2

本文提出 DagEvo,通过利用 self-play 中求解器的失败历史来引导问题生成,无需外部任务资源,并表明混合生成、跨状态拼接的记忆状态更新以及双置信度过滤共同贡献了这些性能提升。DagEvo is introduced, which guides question generation using the solver's failure history from self-play, without external task resources, and shows that mixed generation, memory-state updates with cross-state stitching, and double-confidence filtering contribute to these gains.

6. LLM Research Papers: The 2026 List (Jan–May) — Sebastian Raschka
6. LLM Research Papers:2026 清单(1月–5月) — Sebastian Raschka
arXiv:2603.15569 LLM 基础设施 方法 OA · 绿色 被引 99 · S2

本工作借鉴线性模型的 state space model(SSM)视角,提出三项核心方法改进并组合形成更具表达力的递推结构:源自 SSM 离散化的递推式、用于更丰富状态追踪的复数值状态更新规则,以及在不增加 decode 延迟前提下提升模型性能的多输入多输出(MIMO)建模。This work introduces three core methodological improvements inspired by the state space model (SSM) viewpoint of linear models that combine to form a more expressive recurrence derived from SSM discretization, a complex-valued state update rule that enables richer state tracking, and a multi-input, multi-output (MIMO) formulation for better model performance without increasing decode latency.

Harness-of-Harness: Multi-Day Autonomous Software Development with Continual Improvement
Harness-of-Harness:具备持续改进能力的多日自主软件开发
arXiv:2609.01481 评测基准 方法 OA · 绿色 被引 2 · S2

在持续多天、超过 70 轮迭代的部署中,HoH 自主开发出一款第一人称射击游戏,具备完整的主线剧情、完整实现的核心机制、可供人类游玩的体验、精美的画面与集成的音效。In a multi-day deployment with more than 70 iterations, HoH autonomously develops a first-person-shooter game, featuring a coherent storyline, fully implemented core mechanics, human-playable experience, polished visuals and integrated audio.

ZimaBlue: Evolving Generalizable World Action Models through Scalable Video Pre-training
ZimaBlue:通过可扩展视频预训练演化出可泛化的通用世界动作模型
arXiv:2609.00188 多模态 方法 OA · 绿色 被引 2 · S2

本文提出 ZimaBlue,一个可扩展的框架,用于从大规模视频中学习可泛化的 World Action Models (WAMs),并采用异步 Slow-Fast 双系统架构,使生成式 WAM 具备面向实时控制的实用性。This work introduces ZimaBlue, a scalable framework for learning generalizable World Action Models (WAMs) from large-scale video, and adopts an asynchronous Slow-Fast dual-system architecture to make generative WAMs practical for real-time control.

Qwen-Drive-1.0: An Initial Step towards a Vision-Language Foundation Model for Autonomous Driving
Qwen-Drive-1.0:迈向自动驾驶视觉-语言基础模型的初步探索
arXiv:2609.00111 多模态 方法 OA · 绿色 被引 7 · S2

实验表明,该方法在大幅保留通用视觉-语言能力的同时,具备出色的 3D 感知与驾驶场景理解能力;在开环、伪闭环与闭环设定下的综合评估进一步显示其运动规划性能具有很强的竞争力。Experiments demonstrate strong 3D perception and driving scene understanding while largely preserving general vision-language capability and comprehensive evaluations across open-loop, pseudo-closed-loop, and closed-loop settings further show highly competitive motion-planning performance.

Adaptive Critical Token-Aware Retrieval for Repository-Level Code Generation
自适应关键 token 感知的仓库级代码生成检索
arXiv:2609.01601 RAG 检索增强 方法 OA · 绿色 被引 0 · S2 + OpenAlex

ACToR 在生成过程中识别关键 token,按需触发有针对性的检索,在这些决定性位置提供仓库上下文;并为稠密检索器设计了一种位置感知加权方法,以优先考虑对生成更具信息量的上下文。ACToR identifies critical tokens during generation and triggers targeted retrieval on demand to provide repository context at these decisive positions, and designs a position-aware weighting method for dense retrievers to prioritize context that is more informative for generation.

Agent Memory Is a Surface for Endogenous Authorization Laundering
Agent 内存是内生授权洗钱的表层载体
arXiv:2609.01836 Agent 智能体 方法 OA · 绿色 被引 3 · S2

本工作在采购、网络安全与金融场景下评估了 5 个 LLM 作为记忆写入者、2 个 LLM 作为执行者,并提出 EAL-Bench,用于衡量持久记忆在多大程度上准确保留不断演化的授权状态,以及错误是否会向下游传播为未授权操作。This work evaluates five LLMs as memory writers and two as executors across procurement, cybersecurity, and finance and introduces EAL-Bench, which measures how accurately persistent memory preserves evolving authorization state and whether errors propagate to downstream unauthorized actions.

Does Imitation Learning Preserve Temporal Robustness in Dexterous Manipulation? An Expert-Learner Comparison Across Task Execution Speeds
模仿学习是否保留灵巧操作的时间鲁棒性?跨任务执行速度的专家-学习者对比
arXiv:2609.01453 评测基准 方法 OA · 绿色 被引 0 · S2 + OpenAlex

任务名义成功率相同并不意味着跨执行速度保留专家性能;本文在相同任务条件、初始条件采样与加速倍率下对比了专家与学习者。Equal nominal task success does not imply preservation of expert performance across execution speeds, and an expert and learner under the same task conditions, initial-condition draws, and speedup factors is compared.

6. LLM Research Papers: The 2026 List (Jan–May) — Sebastian Raschka
6. LLM Research Papers:2026 清单(1月–5月) — Sebastian Raschka
arXiv:2604.12374 LLM 基础设施 方法 OA · 绿色 被引 37 · S2

Nemotron 3 Super 是 Nemotron 3 系列中首个采用 NVFP4 进行预训练的模型,借助 LatentMoE(一种同时优化精度 per FLOP 与精度 per parameter 的新型 Mixture-of-Experts 架构),并集成 MTP 层以通过原生 speculative decoding 加速推理。Nemotron 3 Super is the first model in the Nemotron 3 family to be pre-trained in NVFP4, leverage LatentMoE, a new Mixture-of-Experts architecture that optimizes for both accuracy per FLOP and accuracy per parameter, and include MTP layers for inference acceleration through native speculative decoding.

Knowledge Distillation During Mid-Training Favors Reasoning over Factual Recall
中期训练阶段的知识蒸馏更偏向推理而非事实记忆
arXiv:2609.01532 工程化 方法 OA · 绿色 被引 0 · S2 + OpenAlex

本文提出 Switch Distillation,一种简单的 mid-training 目标:以教师预测熵作为轻量路由信号,仅在教师置信的 token 上蒸馏,其余回退到交叉熵;在不同教师规模下均稳定优于现有蒸馏目标。Switch Distillation is proposed, a simple mid-training objective that distills on tokens where the teacher is confident, using teacher predictive entropy as a lightweight routing signal, and otherwise falls back to cross-entropy, which consistently outperforms existing distillation objectives across teacher sizes.

Learning Where Outcomes Change:Credit-Addressable Reasoning for Multimodal Geometry
学习结果变化的位置:面向多模态几何的可寻址信用推理
arXiv:2608.30457 多模态 方法 OA · 绿色 被引 0 · S2 + OpenAlex

本文提出 credit-addressable reasoning:推理时暴露的语义单元同时定义学习阶段比较候选与分配 credit 的位置;并实例化为 Code-CoT,保留图示、将视觉关系表示为行可寻址的可执行代码,并将推理组织为类型化事件。This work introduces credit-addressable reasoning, in which the semantic units exposed during inference also define where learning compares alternatives and assigns credit, and instantiates Code-CoT, which retains the diagram, represents visual relations as line-addressable executable code, and organizes reasoning into typed events.

VibeVoice-ASR-Streaming Technical Report
VibeVoice-ASR-Streaming 技术报告
arXiv:2609.02812 多模态 方法 OA · 绿色 被引 0 · S2 + OpenAlex

VibeVoice-ASR-Streaming 是首批基于 LLM 的端到端流式说话人归属 ASR 方法之一,无需独立 diarization 阶段即可在语音到达时输出"谁说了什么"。VibeVoice-ASR-Streaming is one of the first LLM-based end-to-end approaches to streaming speaker-attributed ASR, allowing the model to produce''who said what''as speech arrives, without a separate diarization stage.

CRISP: Cliff-awaRe Input-adaptive Sparse Prefilling with Structural-Mass-Motivated Routing
CRISP:面向结构-质量驱动的悬崖感知输入自适应稀疏预填充
arXiv:2609.01925 LLM 基础设施 方法 OA · 绿色 被引 0 · S2 + OpenAlex

本文用 C_struct 替代 Jensen-Shannon Divergence 路由:C_struct 是一种结构化代理,通过度量 Vertical-Slash 兼容位置上的 mass 来复现 JSD 的路由决策,同时消除池化 matmul 与后续 KL 散度开销。This work replaces the Jensen-Shannon Divergence routing with C_struct, a structural proxy that measures mass at Vertical-Slash compatible positions and reproduces JSD's routing decisions while eliminating both the pooled matmul and subsequent KL divergence overhead.

Institutional Newspapers Pipeline: Deriving billions of high quality tokens from historical newspapers
机构报纸流水线:从历史报纸中提炼数十亿高质量 token
arXiv:2608.18972 工程化 方法 OA · 绿色 被引 0 · S2 + OpenAlex

本文提出 Institutional Newspapers Pipeline,一个模块化系统,旨在从历史报纸扫描件中提取高质量、结构化的数据集;其架构设计使每个步骤都保持可解释和可定制,并使整个 pipeline 在计算上足够精简,可在工作站级硬件上运行。The Institutional Newspapers Pipeline is presented, a modular system designed to extract high-quality, structured datasets from historical newspaper scans that was architected so that each step remains interpretable and customizable, and so that the pipeline as a whole remains computationally frugal enough to run on workstation-level hardware.

ViSAR: Training-Free Adaptive-$k$ Retrieval for Visual Document Question Answering
ViSAR:面向视觉文档问答的无训练自适应 $k$ 检索
arXiv:2609.02486 RAG 检索增强 方法 OA · 绿色 被引 0 · S2 + OpenAlex

本文提出 ViSAR(Visual Semantic Activation Retrieval),一种面向 late-interaction 视觉文档检索的无训练自适应 k 检索方法,并表明相似度矩阵结构与答案准确率相关,为面向检索质量感知的文档理解指明了未来方向。ViSAR (Visual Semantic Activation Retrieval), a training-free adaptive-$k$ retrieval method for late-interaction visual document retrieval, is introduced and it is shown that the similarity matrix structure correlates with answer accuracy, suggesting future directions for retrieval quality-aware document understanding.

NE-R1: Enhancing Named Entity Recognition Model via Reinforcement Learning
NE-R1:通过强化学习增强命名实体识别模型
arXiv:2609.02366 RAG 检索增强 方法 OA · 绿色 被引 0 · S2 + OpenAlex

本文提出 NE-R1,一种面向自适应检索增强 NER 的新框架,在多个基准上达到 SOTA 性能,域内评估平均 F1 提升 2.52%,零样本跨域评估平均 F1 提升 1.18%。This paper proposes NE-R1, a novel framework for adaptive retrieval-augmented NER, which achieves state-of-the-art performance on various benchmarks, with an average F1 score gain of 2.52% in in-domain evaluation and 1.18% in zero-shot cross-domain evaluation.

NeoMME: A Single-Tower Multimodal-Native Multilingual Foundation Encoder for Efficient Fine-Tuning and Inference
NeoMME:用于高效微调与推理的单塔多模态原生多语言基础编码器
arXiv:2609.01657 多模态 方法 OA · 绿色 被引 0 · S2 + OpenAlex

本文提出 NeoMME,一个 260M 与 800M 参数的多模态多语言双向编码器系列,可在单个双向 Transformer encoder 中处理多语言文本与原始图像 patch。This work introduces NeoMME, a family of 260M and 800M-parameter Multimodal and Multilingual bidirectional Encoders that process multilingual text and raw image patches in a single bidirectional Transformer encoder.

FoldingAgent: Inferring Parametric Origami Procedures from Demonstration Videos
FoldingAgent:从演示视频中推断参数化折纸过程
arXiv:2609.00377 Agent 智能体 方法 OA · 绿色 被引 0 · S2 + OpenAlex

本文提出 FoldingAgent,一个从折纸演示视频中推断显式参数化折纸程序的 Agent 框架,利用预训练 Vision-Language Model 的推理能力,并配备可模拟几何变换、验证物理合理性、检索与比较视觉内容以及评估自身预测的专用工具集。FoldingAgent is presented, an agentic framework for inferring explicit parametric folding programs directly from origami demonstration videos that leverages the reasoning power of a pre-trained Vision-Language Model equipped with a suite of specialized tools that enable the agent to simulate geometric transitions, verify physical plausibility, retrieve and compare visual content, and evaluate its own predictions.

5. GraphRAG / LLMs+Graphs 综合研究
arXiv:2606.11560 Agent 智能体 方法 OA · 绿色 被引 0 · S2 + OpenAlex

本教程综合了推动这些汇聚方向的算法、系统与设计原则,为数据科学与数据挖掘研究者提供统一视角,涵盖将 LLM、图数据管理、图挖掘、图 ML 与 agentic 计算融合到下一代 graph-native AI 系统中。This tutorial synthesizes the algorithms, systems, and design principles driving these converging directions, offering data science and data mining researchers a unified perspective on integrating LLMs, graph data management, graph mining, graph ML, and agentic computation into next-generation graph-native AI systems.

Beyond Visual Similarity: Entity-Aligned Retrieval for Knowledge-Based Visual Question Answering
超越视觉相似性:面向知识库视觉问答的实体对齐检索
arXiv:2608.21450 RAG 检索增强 方法 OA · 绿色 被引 0 · S2 + OpenAlex

本文提出 KBMR,首个面向 KB-VQA 的基于 MLLM 的 embedding retriever,并引入一个基于 MLLM 的语义判别器以生成连续的实体一致性权重,应对维基百科规模检索中的噪声监督挑战。KBMR is proposed, the first MLLM-based embedding retriever tailored for KB-VQA, and an MLLM-based semantic discriminator that generates continuous entity-consistency weights is introduced to tackle the challenge of noisy supervision in Wikipedia-scale retrieval.

Sparse Readout Prism: Explaining Logit-Lens Scores in Features Instead of Tokens
Sparse Readout Prism:用特征而非 token 解释 Logit-Lens 分数
arXiv:2609.01936 RAG 检索增强 方法 OA · 绿色 被引 0 · S2 + OpenAlex

Sparse Readout Prism (SRP) 仅使用 readout 的权重对其进行分解,将任意 token logit 或 logit 差表示为来自稀疏 readout 特征贡献之和,揭示了 readout 特征作为 lens 解读新单元的价值,暴露出 token 身份可能掩盖的结构,并支持跨 token、上下文、层与 lens 的比较。Sarse Readout Prism (SRP), which decomposes the readout using only its weights and expresses any token logit or logit difference as a sum of contributions from sparse readout features, reveals readout features as a new unit of analysis for lens readings, exposing structure that token identities can obscure and enabling comparisons across tokens, contexts, layers, and lenses.

WHALE: A Simple Recipe for Joint Harness-Weight Optimization
WHALE:联合 Harness-权重优化的简洁方案
arXiv:2609.00196 评测基准 方法 OA · 绿色 被引 8 · S2

本文提出 Weight-Harness Alternating LEarning (WHALE),一种简单的方法,交替进行两个阶段:先在当前 harness 下更新模型,再在更新后的模型下通过在线拒绝采样微调与 Meta-Harness 搜索更优的 harness。Weight-Harness Alternating LEarning (WHALE), a simple recipe that alternates two phases: updating the model under the current harness, then searching for a better harness under the updated model with online rejection-sampling fine-tuning and Meta-Harness, is proposed.

Small Language Models as Judges for Rubric-Based Reinforcement Learning
小语言模型作为基于评分标准的强化学习评判器
arXiv:2608.30005 评测基准 方法 OA · 绿色 被引 0 · S2 + OpenAlex

本文研究较小的语言模型能否作为高效且可靠的 rubric 评分器,并比较了从小模型中提取逐项判断的三种方式:生成式判定、Yes/No Logprob 边际以及探针判别器。This work studies whether smaller language models can serve as efficient and reliable rubric-based judges, and compares three ways of extracting criterion-level judgments from small models: Generative verdicts, Yes/No Logprob margins, and Probe judges.

Portfolio Risk Bounds without Cross-Asset Return Covariances: Distributional Fields from Language-Model Representations
无需跨资产收益协方差的投资组合风险边界:来自语言模型表征的分布场
arXiv:2608.29692 安全与风险 方法 被引 2 · S2

投资组合风险评估通常依赖可靠的跨资产收益协方差估计,而在短、高维面板中难以获得。我们表明公司层面的分布型特征可提供投资组合风险的单边证书。在"从特征到系统性暴露、从暴露到收益"的既定联系下,多公司 Wasserstein-2 离散度对系统性投资组合方差给出紧上界,并对标准化收益给出相应边界。加权成对松弛产生一个目标函数……Portfolio risk assessment ordinarily relies on reliable estimates of cross-asset return covariances, which are difficult to obtain in short, high-dimensional panels. We show that firm-level distribution-valued characteristics can instead provide one-sided certificates of portfolio risk. Under maintained links from characteristics to systematic exposures and from exposures to returns, multi-firm Wasserstein-2 dispersion yields a sharp upper bound on systematic portfolio variance and a corresponding bound for standardized returns. A weighted pairwise relaxation produces an objective that is conv