AI 论文与研究

Deep learning has substantially accelerated the calibration of complex stochastic-volatility models, but neural point calibration alone does not capture the uncertainty remaining after an implied-volatility (IV) surface has been observed. …

Conversational AI tools are entering children's everyday experiences, and schools are interested in adopting them. However, successful classroom integration depends not only on the technology but also on the work teachers do to make it usa…

AI tutoring could markedly improve learning outcomes for students in developing regions such as Vietnam, yet the two obvious paths both fall short. Cloud assistants such as ChatGPT route sensitive student data to foreign servers---violatin…

We show that neural network weights can be explicilty fintuned to admit a smaller grammar. Weight Pair Encoding (WeightPE) does so by placing a lossy Re-Pair compressor inside a straight-through estimator. The int8 weights of the network a…

Multi-agent LLM systems are often expected to improve as team size increases, yet the scaling behavior may depend on task structure. Our central contribution is to introduce Steiner's taxonomy of group tasks as a framework for analyzing mu…

Large neural networks can be compressed by rounding or "quantizing" their weights to numbers that admit representations with fewer bits. One algorithm for quantization, OPTQ, progressively quantizes the weights of a neural network so that …

Online learning in non-stationary environments requires models to adapt rapidly from streaming data under strict computational constraints. A principled approach casts online learning as Bayesian state tracking, where model parameters are …

Ensuring online safety through content monitoring had raised Hate Speech Detection as a crucial task to be addressed. By essence the task demands the capture of contextual cues, which are essential for a precise understanding of the conten…

Disaggregating the two stages, Prefill and Decode, onto separate GPU pools is now a standard optimization for (text-only) LLM serving. However, multimodal LLMs (MLLMs), which add a third phase, Encode, pose new challenges for resource allo…

NaceAI 推出 Drex，一个 sub-6B 决策模型，不生成文本而是直接输出各选项概率，一次前向即可完成，面向智能体路由、工具选择、重排序与策略检查等场景。Drex 采用小型扩散模型加 RLAF 架构，定价 $0.04/1M input tokens，延迟低于 1 秒，在 Decision Index 上排名 #1，40 项 benchmark 中赢下 23 项，开放权重与技术报告即将发布。

非常高兴发布 SmolDataEnvs：5,000 个可验证的 RL 环境任务，用于在代码和数据科学领域爬坡训练小模型，由 @adithya_s_k 完成 100% 开源：环境、评测、训练！ https://huggingface.co/datasets/FineEnvs/SmolDataEnvs

Large language models (LLMs) have demonstrated promising performance in log anomaly detection, yet how their adaptation strategies, architectures, and deployment configurations affect detection effectiveness remains insufficiently understo…

Tree-Adjoining Grammars (TAGs) have recently been introduced to Nonlinear System Identification (NLSI) as a means of encoding an entire model class as a finite set of grammatical rules, from which candidate models are assembled as trees. E…

RSIAgent 用课程智能体生成练习任务、执行智能体用代码解题、独立验证器校验结果，练习先覆盖相关任务再深入真实任务的难例。论文称，先广泛探索再攻难例的智能体在 4 项任务上平均得分 74.54%，直接上手难例仅 56.50%。该方法旨在替代为新应用收集数据并重训的高成本做法。

Distributionally robust optimization (DRO) provides a principled framework for learning under distribution shift, but its practical use is hindered by the difficulty of evaluating worst-case risks for nonconvex loss functions. We study a p…

Inference in LLMs is conventionally a fixed-depth, fixed-order forward pass through every layer, regardless of how difficult the input is. The human brain does not work this way: using the thalamus as a central hub, it routes information f…

The Model Context Protocol (MCP) provides a common interface through which AI applications discover and use external resources and tools. It allows language-model agents to ground their reasoning in current system state and interact with h…

Vision-Language Models (VLMs) exhibit remarkable zero-shot generalization, yet they often encode unwanted or hazardous stylistic domains such as idealized textbook diagrams in medical AI or cartoon vehicles in autonomous driving. Approxima…

Contemporary large language model (LLM) chat systems treat conversation history as an immutable sequence of turns that defines the model's working context. However, user intent in real interactions is not static: it evolves through correct…

Time-series carry structure simultaneously at multiple scales (fine-grained variation, mid-range motifs, and global properties) and downstream tasks operate at correspondingly different scales. Most existing self-supervised learning approa…

Humyn Labs 推出 BRIDGE ASR 2.0，用真实双人对话评测 23 个语音识别模型，覆盖 18 种印度语言及西班牙语、葡萄牙语、越南语。其核心指标 code-switch F1 检验句中混用的英文词是否保持英文，排行榜支持按语言和指标筛选，方法论与评测数据公开。

Large video diffusion models offer expressive priors for embodied prediction and learning, yet their many-step sampling remains costly for interactive downstream use. Distribution Matching Distillation (DMD) enables few-step video generati…

Retrieval-augmented generation (RAG) is often used to address outdated knowledge by providing external evidence. But retrieval helps only when that evidence is still valid. We identify a temporal alignment failure, stale-document poisoning…

Whether an information extraction pipeline should process page images or parsed text depends on the document, and the answer flips across the layout spectrum. We study this trade-off under a constraint that rules out (closed) cloud service…

Morphology--control co-design jointly optimizes an agent's body structure and control policy as an integrated embodied system. However, existing methods typically model morphology design and control with separate networks coupled only indi…

Perplexity Research 发布后训练研究，将拒绝采样微调与提示引导自蒸馏（OPSD）结合，用 GLM 5.2 驱动的 Perplexity Computer 真实用户会话（含失败会话）训练模型。

Ordinal acne severity grading requires distinguishing visually similar neighboring grades while jointly weighing holistic facial appearance and localized lesion burden - evidence that most existing approaches collapse into a single opaque …

Continual spatio-temporal forecasting supports traffic management and environmental monitoring under evolving dynamics and expanding sensor networks. However, conventional graph-based continual learning methods tie forecasting representati…

AI agents combine language models with external data and tools that can modify files, call APIs, or execute code. Security failures can arise when adversarial content changes an agent's tool use or when the surrounding software contains vu…

Unobserved common causes are pervasive in real-world time series and can induce spurious associations that causal discovery methods mistake for direct edges. We propose LUCID (Learning Under Confounding for Inference and Discovery, a regim…

Vision-Language-Action models (VLAs), while showing strong potential for robot control, require massive amounts of high-quality imitation learning data. Moreover, the absence of an explicit world model casts further doubt on their control …

Tabular in-context learners such as TabPFN, Mitra, or ConTextTab rely on alternating row and column attention over 2D sequences of latent embeddings. These attention patterns differ markedly from the one-dimensional case in language models…

We study geometric moment contraction (GMC) of the constant-parameter stochastic Nesterov recursion \[ Y_k=Θ_k+β(Θ_k-Θ_{k-1}),\qquad Θ_{k+1}=Y_k-γG(Y_k,X_{k+1}). \] Under mean strong monotonicity and stochastic $L^p$ Lipschitz continuity, …

Large language model agents increasingly act on software systems, no longer merely generating text but also changing databases and online services. However, an approved database update may succeed yet leave an unapproved notification becau…

微软论文《Coding Agents are Strong Prompt Optimizers》提出 Coding-Agent Skill Distillation（CASD），让现成编码代理读取完整智能体轨迹日志，自行编写分析代码统计失败模式并将发现写成规则提示词，无需环境访问和验证数据。

研究者提出 softmax 重参数化，一种在量化前选取功能等价输出头的后训练方法，通过从每个输出行减去词汇行均值的标量倍数，并按验证 KL 分别为 RTN、激活加权 MSE 和 full-Hessian GPTQ 选择系数。

研究团队推出 AgentWorld，一个面向多智能体 LLM 长时程协作的基准，包含 100 个人工标注任务（另有 100 个增强变体），任务跨越 50+ 轮交互、需 3-20 个角色与能力不对称的智能体在 MMORPG 沙盒中协作。

FuseReg 用随机编码器层子集训练替代启发式层融合，在 ImageNet-256 与 DINOv3-L 上，单个解码器无需重训即可从全层、稀疏和单层融合中重建，PSNR 高于固定融合的专用解码器。仅替换解码器即使未改动的 RAEv2 DiT-XL 生成器无引导 gFID 降低 27%，联合正则化两阶段在 DiT-Base 上降低 29%。

Duplex-MPE 基准发布，用于评估全双工语音助手在多人共享对话中何时应答、保持沉默或停止说话，包含 2000 个由三到四名人类说话者与一名助手构成的场景，同一请求分显式与隐式指代配对。

Omni-IO Skills 是一个即插即用的 Agent Harness，通过分层 Skills、标准化多模态执行接口、依赖感知编排和持久化 Asset Registry，让现有 Agent 无需改动推理核心即可原生处理多模态任务。