NeurIPS 2026 论文列表

Conference on Neural Information Processing Systems

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Cache the Future: Training-Free Self-Revision for Diffusion Transformer Acceleration

Yiyang Li, Weixuan Huang, Wei Zhang

展开摘要

Although recent training-free acceleration methods have achieved promising speedups for Diffusion Transformers, most rely on historical features, either by directly reusing cached features or by forecasting future features from them. Such a history-to-future design can accumulate errors when the prediction horizon becomes long. To address this issue, we propose FuCa, a Cache-the-Future training-free acceleration framework. Instead of extrapolating future information solely from the past, FuCa caches sparsely computed future features and uses them as online revision signals. FuCa revises the latent-state update and the corresponding velocity, and then recovers skipped timesteps through lightweight interpolation. It requires no extra training or model-specific auxiliary modules, while keeping the number of DiT forward evaluations low. Experiments on FLUX.1-dev, Qwen-Image, Wan2.1-1.3B, and Hunyuan Video show that FuCa achieves up to about 5$\times$ speedup for image generation and more than 4.3$\times$ speedup for video generation, with higher reconstruction quality than existing training-free baselines.

Poster
CaMeLs Can Use Computers Too: System-level Security for Computer Use Agents

Hanna Foerster, Tom Blanchard, Kristina Nikolić, I Shumailov, Cheng Zhang, Robert Mullins, Nicolas Papernot, Florian Tramer, Yiren Zhao

展开摘要

AI agents are vulnerable to prompt injection attacks, where malicious content hijacks agent behavior. Among proposed defenses, architectural isolation provides the strongest guarantees by strictly separating trusted task planning from untrusted environment observations. However, applying this design to Computer Use Agents (CUAs), which automate tasks by viewing screens and executing actions, presents a fundamental challenge. Current agents require continuous observation of UI state to determine each action, which conflicts with the isolation required for security. We resolve this tension by demonstrating that UI workflows, while dynamic, are structurally predictable. Single-shot planning, where a trusted planner emits upfront a complete branching plan covering all anticipated runtime states, provides control flow integrity guarantees against arbitrary instruction injections. We introduce NOVA (Navigating via Observation, Verification, and Action) to make this viable in the combinatorially large UI state space, where the plan can invoke a perception model to resolve runtime values such as UI coordinates. We evaluate our design on OSWorld, and retain up to 57\% of the performance of frontier models while improving performance for smaller open-source models by up to 19\%, demonstrating that rigorous security and utility can coexist in CUAs. Although upfront planning prevents instruction injections, we show that additional measures are needed to defend against Branch Steering attacks, where adversaries deceive the perception model into routing execution down attacker-preferred branches of the plan, such as redirecting the agent to a malicious website.

Poster
CaC: Advancing Video Reward Models via Hierarchical Spatiotemporal Concentrating

JiYuan Wang, Huan Ouyang, Chunyu Lin, Dewen Fan, Boheng Zhang, Tingting Gao, Fan Yang, Jia Sun, Zijun Li, Yongrui Heng, Huaiqing Wang, Zhenlong Yuan, Yiyang Fan, Honglie Wang, Fei Zuo, Haonan fan, Jiuzhou Lin, Guosheng Lin

展开摘要

Recently, video generation models have achieved remarkable progress in global visual fidelity. However, when synthesizing complex dynamic content, they frequently produce **sparse subtle anomalies**. Existing video reward models primarily emphasize overall visual quality and text alignment; yet as generation quality improves, these coarse-grained defects become less frequent, while the sparse structural, temporal, and physical anomalies become an increasingly important bottleneck. Therefore, in this paper, we propose Concentrate and Concentrate (CaC), a coarse-to-fine anomaly reward model based on Vision-Language Models. During inference, it first conducts a global temporal scan to anchor anomalous time windows, then performs fine-grained spatial grounding within the localized interval, and finally derives robust judgments via structured spatiotemporal Chain-of-Thought reasoning. To equip the model with these capabilities, we construct the first large-scale generated video anomaly dataset with per-frame bounding-box annotations, temporal anomaly windows, and fine-grained attribution labels. Building on this dataset, we design a three-stage progressive training paradigm. The model initially learns spatial and temporal anchoring through single- and multi-frame supervised fine-tuning, and then is optimized by a reinforcement learning strategy based on two-turn Group Relative Policy Optimization (GRPO). Beyond conventional accuracy rewards, we introduce Temporal and Spatial IoU rewards to supervise the intermediate localization process, effectively guiding the model toward more grounded and interpretable spatiotemporal reasoning. Extensive experiments demonstrate that CaC can stably ``concentrate'' on subtle anomalies, achieving a 25.7\% accuracy improvement on fine-grained anomaly benchmarks and, when used as a reward signal, CaC reduces generated-video anomalies by 11.7\% while improving overall video quality.

Poster
CVTA: Cross-Variable Temporal Attention for Multivariate Irregular Time Series Prediction

Ankitkumar Joshi, Milos Hauskrecht

展开摘要

Irregularly sampled multivariate time series arise in many real-world domains such as healthcare, climate science, and large-scale monitoring systems. Characterized by asynchronous observations and heterogeneity across variables, such time series pose significant challenges for forecasting. In this work, we introduce Cross-Variable Temporal Attention (CVTA), a short-term, continuous-time forecasting framework that learns prediction functions from a compact, interpretable Markov state summarizing recent temporal dynamics across variables. CVTA uses Variable-Conditioned Embeddings to project heterogeneous variables into variable-specific latent spaces, and applies temporal attention to capture cross-variable dependencies from this state. Furthermore, we demonstrate that CVTA can be integrated as an auxiliary module into existing state-of-the-art prediction models through a dynamic meta-decision model. Extensive experiments on multiple real-world benchmarks show that CVTA achieves strong short-term predictive accuracy, supports efficient online inference, improves existing prediction models when used as an auxiliary module, and learns attention patterns that align well with domain knowledge.

Poster
CUVET: A Partitioning Approach for Continuous Treatment Assignment At Scale

Artem Betlei, Mariia Vladimirova, Victor Girou, Thibaud Rahier

展开摘要

Treatment assignment problems arise wherever limited budget must be allocated to heterogeneous users, with applications ranging from personalized recommendations to online advertising and healthcare. In such settings, individuals exhibit heterogeneous responses to different treatments, making it essential to learn cost-aware personalized treatments. This paper introduces the Cost per Unit Value Equalization Tree (CUVET) algorithm, a novel treatment assignment approach that partitions the user space. Under a diminishing-returns (power-law) assumption, CUVET solves the within-cohort allocation problem by equalizing the marginal cost per unit value across each user group, yielding a closed-form cost-aware treatment assignment suited for large-scale industrial deployment. We also release CUVET-policy, an 86.7-million-impression public benchmark derived from real-world industrial A/B tests, providing an open-source evaluation framework for decision-focused learning. Across a multi-method benchmark suite, the Bayesian variant of CUVET achieves the largest cost-feasible value uplift on the public MT-LIFT dataset +11.1% under LP, vs. at most +1.3% for all baselines, while on CUVET-policy, where treatment effects are sub-percent, CUVET variants are the most efficient and strongest cost-feasible methods.

Poster
CURe: Conservative Unlearning with Soft-Gating Regularization for Offline Reinforcement Learning

Bijal Bharadva, Manuel Kelly, Yingxue Zhang, Xin Zhang

展开摘要

Offline reinforcement learning (RL) trains policies from static datasets, but deployed agents may later need to attenuate the influence of specific data for privacy, safety, or fairness. This is challenging in the overlap regime, where the forget set and retained data share state-action support: unlearning cannot be uniform as suppressing values on shared support can inadvertently erase behaviors required for high performance. We propose Conservative Unlearning with soft-gating Regularization (CURE), a selective unlearning framework tailored to overlap. CURE assigns each forget trajectory an overlap-interference score via cosine alignment between its temporal difference (TD) semi-gradient and a retained reference gradient, and uses it to soft-gate i) conservative, state-conditional critic suppression relative to a retained baseline and ii) coupled actor updates, selectively modulating forgetting based on interference, reducing impact on aligned data. We provide a first-order analysis showing that CURE descends a forget surrogate while controlling retained drift via alignment-dependent coupling. Across MuJoCo benchmarks and offline RL backbones, CURE consistently improves the forget-utility trade-off over baselines, achieving low auditor-detectable forget influence with near-original returns at a fraction of retraining cost.

Poster
CURE: Visual Reprogramming of Vision-Language Models under Limited Supervision

Lingzhi Wang, Wei Wang, Xinyang Chen

展开摘要

Visual reprogramming (VR) efficiently repurposes pre-trained vision-language models for new image classification tasks by adding trainable patterns to inputs without modifying the backbone. Nevertheless, existing VR methods heavily depend on labeled data and thus suffer substantial performance degradation under limited supervision (i.e., scarce labeled images). We introduce semi-supervised learning (SSL) into VR to exploit abundant unlabeled images and enhance data efficiency. However, directly applying generic SSL techniques often amplifies biases in unlabeled posteriors and destabilizes VR training. To address these challenges, we propose **CURE** (**C**onsistency and **U**nlabeled **R**ecalibration with Confidence-Margin **E**nhancement), a semi-supervised VR framework comprising two key components: *(i)* Recalibreted Gaussian Confidence-Margin Soft Weighting to dynamically adjust sample importance; *(ii)* Dual-attribute Consistency Regularization to ensure consistency across attribute prompts. Extensive experiments show that CURE consistently outperforms both existing VR methods and direct SSL extensions, improving average classification accuracy by **5.06** and **6.67** percentage points across twelve widely-used benchmarks for limited supervision tasks. Our code is available at https://anonymous.4open.science/r/CURE-93E2/.

Poster
CURE: Coupled User-Grouped Reinforcement Learning for Cross-Domain Recommendation with Non-Overlapping Users

Hyeongjun Yun, Taesan Kim, Dongjoon Hong, Junui Hong, Jihoon Oh, Kijung Park, Mincheol Cho, Kihyuk Song, Jaegul Choo, Chung Park

展开摘要

Cross-Domain Recommendation is essential for enabling cross-sell in multi-service platforms; however, limited user overlap and strict cross-service data-sharing constraints often result in little to no ground-truth supervision for cross-domain learning. To bridge this gap, we propose an LLM-based framework for cross-domain recommendation in the non-overlapping user scenario. First, we propose an agentic pipeline that constructs cross-domain pseudo supervision, which is unavailable in the non-overlapping user scenario, by leveraging a user’s source-domain history to generate a target-domain item recommendation. Using this dataset, we further propose \underline{C}oupled \underline{U}ser-G\underline{R}ouped R\underline{E}inforcement Learning (CURE), which induces coupling between in- and cross-domain gradient updates via user-level joint normalization, thereby calibrating synthetic cross-domain updates against reliable in-domain signals. We provide a theoretical analysis showing that user-level coupling stabilizes policy updates under imperfect pseudo supervision and improves cross-domain generalization. Experiments on Amazon Reviews and MovieLens show consistent gains over baselines in cross-domain recommendation, while also improving in-domain performance. An online A/B test demonstrates a statistically significant 56\% lift in click-through rate over existing ML methods.

Poster
CUDABeaver: Benchmarking LLM-Based Automated CUDA Debugging

Shiyang Li, Haoyang Chen, Mattia Fazzini, Caiwen Ding

展开摘要

Debugging CUDA programs has long been challenging because failures often arise from subtle interactions among hardware behavior, compiler decisions, memory hierarchy, and asynchronous execution. More importantly, with the rapid expansion of GPU usage across scientific computing, machine learning, graphics, and systems workloads, CUDA debugging has become more challenging than ever. Current evaluations of LLM-based CUDA programming largely miss this setting: a model can pass correctness tests with repair by degeneration, simplifying the CUDA code into a safer but slower program that abandons the original optimization structure. We introduce CUDABEAVER, a benchmark for CUDA debugging from real failing workspaces produced during LLM-based CUDA generation. Each task provides the broken candidate, native build/test commands, raw error evidence, and a single editable file. CUDABEAVER evaluates whether a fixer truly repairs the failing CUDA code or merely finds a slower test-passing replacement, reporting results by failure category, debugging trajectory, stagnation mode, and performance preservation. We further propose pass@k(M,C,A), a protocol-conditional CUDA debugging metric by making the fixer M, corpus C, and protocol axes Aexplicit. Using this metric across 213 tasks and seven frontier LLMs, we show that protocol-aware evaluation gives a more faithful view of CUDA debugging ability: when performance-loss tolerance is high, fixers appear much stronger, but even a minor stricter performance requirement can sharply reduce measured success, shifting scores by up to 40 percentage points.

Poster
CTM-AI: A Blueprint for General AI Inspired by a Model of Consciousness

Haofei Yu, Yining Zhao, Lenore Blum, Manuel Blum, Paul Liang

展开摘要

Despite remarkable advances, today's AI systems remain narrow in scope, falling short of the flexible, adaptive, and multisensory intelligence that characterizes human capabilities. This gap has fueled longstanding debates about whether AI might one day achieve human-like generality or even consciousness, and whether theories of consciousness can inspire new architectures for AI. This paper presents an early blueprint for implementing a general AI system, CTM-AI, combining the Conscious Turing Machine (CTM), a formal machine model of consciousness, with today's foundation models. CTM-AI contains an enormous number of powerful processors ranging from specialized experts (e.g., vision-language models and APIs) to unspecialized general-purpose learners poised to develop their own expertise. Crucially, for whatever problem must be dealt with, information from many processors is selected, integrated, and exchanged appropriately to solve the task.CTM-AI achieves state-of-the-art accuracy on MUStARD (72.28) and UR-FUNNY (72.13), outperforming multimodal and multi-agent frameworks. On tool-using and agentic tasks, CTM-AI achieves 10+ points of improvement on StableToolBench and WebArena-Lite. Overall, CTM-AI offers a principled, testable blueprint for general AI inspired by a model of consciousness.

Poster
CT-Lesion: A Multi-Region CT Dataset for Co-existing Lesion Segmentation and Detection

Ruihan Lu, Leiqiang Pan, Shijie Wang, Dingyi Zhang, Jianjun Shen, Xin Yu

展开摘要

Lesion analysis in CT imaging, the task of identifying and delineating abnormal regions across diverse anatomical sites, plays a fundamental role in clinical diagnosis. Existing CT lesion datasets typically focus on a single disease type within a specific region. This design leads to two main limitations. First, co-existing lesions outside the predefined categories are left unannotated, so models may treat real lesions as background during training. Second, lesion categories within any single region follow a long-tailed distribution, in which rare but clinically important categories are underrepresented. However, collecting enough samples for every rare category within a single region is often impractical. We observe that certain lesion categories are rare in one region but occur more frequently in another, motivating the use of cross-region complementarity for lesion detection. In this work, we curate a multi-region CT lesion dataset, namely CT-Lesion, which covers brain, chest, and abdomen CT images. Our CT-Lesion is sourced from a private cohort of 500 clinical CT scans. Seven radiologists spent approximately 1,600 working hours delineating lesions of any type, rather than restricting annotations to a predefined set of categories. As a result, CT-Lesion provides clinically confirmed voxel-level segmentation masks and 28 fine-grained lesion labels. Moreover, we further group the lesions into 9 coarse categories to alleviate data scarcity issues. To demonstrate the effectiveness and utility of CT-Lesion, we benchmark the representative methods on CT-Lesion for lesion segmentation and detection. Furthermore, pretraining on CT-Lesion improves model performance on external benchmarks, including LiTS, KiTS, and LIDC-IDRI, demonstrating its potential as a transferable resource for CT lesion analysis. Our dataset is available at Kaggle.

Poster
CSI-TextBench: A Dataset and Benchmark for Language-Grounded Ambient Sensing Perception

Guozhen Zhu, Yuqian Hu, Sakila S Jayaweera, Wei-Hsiang Wang, Beibei Wang, K. Liu

展开摘要

Indoor context deciphered by ambient sensing underpins many applications, from assisted living to smart buildings, yet remains weakly connected to the language-aligned paradigm of modern multimodal systems. Through billions of IoT devices, ambient WiFi Channel State Information (CSI) captures the indoor context of human activity and environmental dynamics passively via ubiquitous, always-on infrastructure. However, unlike vision or audio, CSI lacks naturally paired text like captions or transcripts, limiting its integration with language-driven AI systems. We present CSI-TextBench, a large-scale dataset and benchmark for aligning CSI data with natural language, unifying 3 sensing benchmarks into 285,790 samples across 7 tasks and pairing them with 2,291 hierarchically structured, label-derived descriptions via many-to-many assignment to construct 2.0 million CSI–text training tuples. Benchmarking 5 alignment methods from 4 paradigm families, we show that contrastive CSI--text alignment matches supervised classifiers without class labels, adapts to unseen classes with few samples, and responds to open-vocabulary natural-language prompts. A single unified model supports compositional scene understanding, answering joint queries over activity, proximity, and identity, achieving 86.9\% top-1 accuracy on 140 composite scenes, outperforming task-specific classifier ensembles. CSI-TextBench enables ubiquitous ambient sensing as a language-indexed perception layer, enabling indoor contextual awareness in language-driven AI systems.

Poster
CSFlow: Aligning Flow Matching with Human Contrast Sensitivity

Malgorzata Galinska, Bart Pogodzinski, Jan Eric Lenssen

展开摘要

We introduce Contrast Sensitive Flow (CSFlow), a weighting scheme that connects the human eye's Contrast Sensitivity Function (CSF) to the iterative denoising steps of flow matching. Because real-world images concentrate signal at low spatial frequencies, these components reach high signal-to-noise ratio earlier during continuous diffusion than high-frequency components. When generating images with diffusion or flow matching models, this induces a soft autoregressive structure in Fourier space, where coarse image content stabilizes before fine detail. Meanwhile, the human visual system is unequally sensitive to spatial frequencies: very low and very high frequencies require significantly higher contrast to be perceived. We for the first time merge these observations through two contributions: (1) a metric that estimates which frequencies are generated at each reverse flow interval and (2) timestep weights obtained by aligning the frequencies generated at each noise level with human contrast sensitivity. We validate our contributions experimentally showing that these weights can improve generative performance by lowering FID by 4.7%, increasing Inception Score by 2.2% and improving GenEval scores by 2.5% using inference-only timestep modification or short fine-tuning. Qualitatively, we find that our CSFlow weights lead to better visual realism and less cartoonish appearance of generated images.

Poster
CSBench: A Comprehensive Benchmark for Evaluating Project-Level System Construction in Computer Science

Hongli Yu, Huan-ang Gao, Botian Wang, Hanlin Wu, Yifei Wang, Daoguang Zan, Huang Anni, Weinan Dai, Qiying Yu, Jiaze Chen, Wei-Ying Ma, Ya-Qin Zhang, Jingjing Liu, Mingxuan Wang, Hao Zhou

展开摘要

While LLM-based coding agents have advanced to repository-scale engineering, existing benchmarks predominantly focus on software maintenance, overlooking the foundational capability of system construction. We introduce CSBench, a benchmark evaluating project-level Spec-to-Code implementation across core computer science domains (e.g., OS, compilers, databases). CSBench features 100 expert-curated tasks from top-tier university assignments within containerized environments. Evaluating 12 state-of-the-art LLMs reveals a stark performance disparity: even top-tier models like GPT-5.2 see success rates plummet from over 90% in algorithmic tasks to below 35% in system-level domains. Our analysis identifies a fundamental deficiency in systemic reasoning and construction knowledge as the primary bottleneck, where agents either terminate prematurely due to overconfidence or fail to translate execution feedback into valid architectural fixes, highlighting CSBench as a necessary tool to bridge this gap and advance autonomous agents toward deep computer science mastery.

Poster
CS-Dialogue: A 104-Hour Dataset of Spontaneous Mandarin-English Code-Switching Dialogues for Speech Recognition

Jiaming Zhou, Yujie Guo, Shiwan Zhao, Haoqin Sun, Hui Wang, Jiabei He, Aobo Kong, shiyao wang, Yong Qin

展开摘要

Code-switching (CS), the alternation between two or more languages within a single conversation, presents significant challenges for automatic speech recognition (ASR) systems. Existing Mandarin-English code-switching datasets often suffer from limitations in size, spontaneity, and the lack of full-length dialogue recordings with transcriptions, hindering the development of robust ASR models for real-world conversational scenarios. This paper introduces CS-Dialogue, a novel large-scale Mandarin-English code-switching speech dataset comprising 104 hours of spontaneous conversations from 200 speakers. Unlike previous datasets, CS-Dialogue provides full-length dialogue recordings with complete transcriptions, capturing naturalistic code-switching patterns in continuous speech. We describe the data collection and annotation processes, present detailed statistics of the dataset, and establish benchmark ASR performance using state-of-the-art models. Our experiments, using Transformer, Conformer, and Branchformer, demonstrate the challenges of code-switching ASR, and show that existing pre-trained models such as Whisper still have the space to improve. The CS-Dialogue dataset will be made freely available for all academic purposes.

Poster
CS-DICE: Offline Reinforcement Learning with Coherent Occupancy Regularization

Jeremías Figueiredo Paschmann

展开摘要

Offline RL methods often regularize toward the empirical occupancy of the dataset, but this reference can mismatch the deployed policy. In partially observed or decentralized settings, data may be pooled from hidden modes, histories, or conventions that are unavailable at execution time. The pooled occupancy can then require incompatible action laws for the same deployed input, or joint correlations that a decentralized policy class cannot represent, so regularization toward it can favor a low return projection. We formalize this failure through *reference coherence*: a reference is coherent when it does not rely on information hidden from the deployed policy, and when its action law is representable by that policy. We propose *Closest Slice DICE (CS-DICE)*, a DICE variant that regularizes toward a coherent slice of the training data rather than the pooled occupancy. A hard or soft selector chooses the slice used as the reference term, while the deployed observations, actor class, and factorization constraints remain unchanged. Most of the results focus on the soft reverse-$KL$ case, where the selector only changes the reference used by an otherwise standard DICE update. Controlled examples show that incoherent pooled references collapse to suboptimal behavior, while CS-DICE recovers high return policies when the selected or inferred slice is coherent with the deployed interface. We also identify a boundary case where pooling is benign because the relevant signal is revealed before the conflict. Finally, a CS-CoMA-DICE study on MaMuJoCo shows that selected references can be integrated into a neural cooperative MARL pipeline while preserving decentralized execution.

Poster
CRUMB: Efficient Prior Fitted Network Inference via Distributionally Matched Context Batching

Jamie Heredge, Mattia Jacopo Villani, Pranav Deshpande, Akshay Seshadri, Niraj Kumar

展开摘要

Prior-fitted networks (PFNs) are a promising class of tabular foundation models that perform in-context learning, whereby the entire labelled training set is supplied as context, and predictions for test queries are produced in a single forward pass. However, the quadratically scaling self-attention mechanism in many PFN architectures makes inference prohibitive for very large training datasets. We propose CRUMB (Clustered Retrieval Using Minimised-MMD Batching), a three-stage inference wrapper that (i) clusters the test queries, (ii) selects a small, distributionally matched training subset for each cluster by greedily minimising the maximum mean discrepancy (MMD), and (iii) runs exact PFN inference on each reduced-context batch. CRUMB is architecture-agnostic and requires no retraining. On the 51-dataset TabArena benchmark, evaluated across three PFN architectures (TabPFNv2, TabICLv1, TabICLv2), we show that CRUMB outperforms similar state-of-the-art context selection strategies. We also show that CRUMB is resilient to covariate drift, as the MMD-minimisation step naturally helps align the training context distribution to match the current test batch distributions.

Poster
CRISP: Fixing Flying Pixels in Latent LiDAR Generation via Diffusion Decoding

Andrea Ceron, Michael Schmidt, Alvaro Marcos-Ramiro, Sebastian Schmidt, Benjamin Busam

展开摘要

Latent LiDAR pipelines suffer from flying pixels: convolutional VAEs blur sharp LiDAR contours, yielding edge depths that back-project to points floating between surfaces. We identify this as a major, directly correctable decoder bottleneck and introduce CRISP: a pixel-space diffusion decoder with a backbone-agnostic latent adapter, DiT-based denoiser, and support mask predictor. CRISP replaces convolutional decoders commonly inherited from image and video VAEs while keeping the encoder and latent generator fixed. Across KITTI-360, SemanticKITTI, and nuScenes, replacing only the decoder reduces FSVD/FPVD by 50.5% on average across frozen backbones; for generic video VAEs, the reductions reach 71%/74%. On the LiDAR-native LiDM backbone, FRID drops by 71%, with the largest gains at depth discontinuities. Inside a pretrained LiDM world model, the same zero-shot replacement improves FSVD by 15.5%, narrowing the sim-to-real gap. Code and checkpoints will be released upon acceptance.

Poster
CRESiST: Self-Enhancing Exploritive Policy Learning for Simultaneous Speech Translation

Chenyang Le, Pei Zhang, Yuxiang Chen, Xi Chen, Bing Han, Derek Wong, Baosong Yang, Yanmin Qian

展开摘要

Simultaneous Speech Translation (SimulST) requires balancing translation quality and latency. While Large Language Models (LLMs) excel in offline translation, current LLM-based SimulST systems predominantly rely on prefix-incremental generation. This paradigm suffers from redundant Key-Value cache recomputation and necessitates external Voice Activity Detection to process unbounded streams. To overcome these bottlenecks, we propose an end-to-end interleaved read-write framework built upon an omni-modal LLM. By interleaving speech chunks and text tokens, our architecture achieves full KV cache reuse, natively supporting segmentation-free, infinite-length inference. Furthermore, to learn optimal streaming policies without rigid offline alignments, we introduce a novel Actor-Critic self-enhancement pipeline. An RNN-T Actor dynamically samples read-write trajectories, while an LLM-based Critic evaluates these paths via intrinsic semantic and latency rewards, distilling the optimal policy back to the Actor. Extensive experiments on sentence-level (FLEURS, CoVoST2) and document-level (MuST-C, ACL 60/60) benchmarks demonstrate that our model establishes new state-of-the-art quality-latency Pareto frontiers, substantially outperforming existing cascaded and static-alignment baselines.

Poster
CREF: Forecasting Benchmarks for the Age of Agents

Andreas Auer, Abdul Fatir Ansari, Oleksandr Shchur, Xiyuan Zhang, Boran Han, Pedro Mercado, Prateek Desai, Yuyang (Bernie) Wang, Michael Bohlke-Schneider

展开摘要

Traditional forecasting evaluations relying on static historical data are fundamentally incompatible with modern AI advances. Even for standard time series foundation models, temporal overlap between training and test periods can lead to implicit leakage through correlated signals. This problem is intensified by LLMs, which can bridge semantic gaps between forecasted and related data while memorizing extensive world knowledge. At the extreme, agentic models with tool access can retrieve the ground truth directly. Such information leakage inflates performance relative to real forecasting scenarios and is impossible to rule out in historical evaluations. We introduce CREF, a real-time benchmark that evaluates forecasting models on data that does not yet exist, eliminating all forms of leakage by design. CREF balances three competing objectives for real-time benchmarks: diversity, robustness, and throughput. It draws data from 32 public APIs and features 50 forecasting tasks with diverse data frequencies, multivariate targets, and covariates, making it the first real-time benchmark reaching the breadth of leading static benchmarks. Retrospective evaluation validates that CREF produces rankings consistent with established static benchmarks, while real-time evaluation reveals qualitative and quantitative performance gaps for agentic and LLM-based models, confirming leakage on historical data. CREF runs continuously and is open for new models to join, offering a public leaderboard for contamination-free model comparison.

Poster