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Large language Models (LLMs) have achieved significant breakthroughs across diverse domains; however, they can still produce unreliable or misleading outputs. For responsible LLM application, Uncertainty Quantification (UQ) techniques are…

机器学习 · 计算机科学 2026-05-15 Qihao Wen , Jiahao Wang , Yang Nan , Pengfei He , Ravi Tandon , Han Xu

Measuring long-run LLM outcomes (user satisfaction, expert judgment, downstream KPIs) is expensive. Teams default to cheap LLM judges, but uncalibrated proxies can invert rankings entirely. Causal Judge Evaluation (CJE) makes it affordable…

统计方法学 · 统计学 2026-01-22 Eddie Landesberg , Manjari Narayan

Simulation-based inference (SBI) is the preferred framework for estimating parameters of intractable models in science and engineering. A significant challenge in this context is the large computational cost of simulating data from complex…

机器学习 · 统计学 2025-02-18 Ayush Bharti , Daolang Huang , Samuel Kaski , François-Xavier Briol

To facilitate robust and trustworthy deployment of large language models (LLMs), it is essential to quantify the reliability of their generations through uncertainty estimation. While recent efforts have made significant advancements by…

计算与语言 · 计算机科学 2025-07-22 Rui Li , Jing Long , Muge Qi , Heming Xia , Lei Sha , Peiyi Wang , Zhifang Sui

Large language models (LLMs) now exhibit strong multi-step reasoning abilities, but existing inference-time scaling methods remain computationally expensive, often relying on extensive sampling or external evaluators. We propose a…

人工智能 · 计算机科学 2026-03-10 Nicolas Legrand , Kenneth Enevoldsen , Márton Kardos , Kristoffer Nielbo

The escalating computational costs of Large Language Model (LLM) inference have become a critical barrier to their widespread and sustainable deployment. While existing optimization strategies are effective, they are predominantly based on…

机器学习 · 计算机科学 2025-07-02 Yilun Zhang

Large language models (LLMs) inference is both expensive and slow. Local caching of responses offers a practical solution to reduce the cost and latency of LLM queries. In research contexts, caching also enhances reproducibility and…

软件工程 · 计算机科学 2025-12-01 Yihan Dai , Dimitrios Stamatios Bouras , Haoxiang Jia , Sergey Mechtaev

Large language models (LLMs) demand considerable computational, energy, and financial resources during both training and deployment. While scaling laws for training have guided much of the field's recent progress, inference costs now…

机器学习 · 计算机科学 2025-07-11 Austin R. Ellis-Mohr , Anuj K. Nayak , Lav R. Varshney

In this work, we consider one-way ultra-reliable and low-latency communication (URLLC), where only the transmission in one direction requires URLLC and the transmission in the opposite direction does not. In order to meet the low-latency…

信息论 · 计算机科学 2019-09-04 Chunhui Li , Shihao Yan , Nan Yang , Xiangyun Zhou , Riqing Chen

The miscalibration of Large Reasoning Models (LRMs) undermines their reliability in high-stakes domains, necessitating methods to accurately estimate the confidence of their long-form, multi-step outputs. To address this gap, we introduce…

Agents built on large language models (LLMs) rely on a range of reliability techniques, including retry, majority voting, and self-consistency, that have been developed in parallel rather than within a common analytical framework. We…

机器学习 · 计算机科学 2026-05-12 Hamed Omidvar , Vahideh Akhlaghi

The proliferation of Large Language Models (LLMs) with varying capabilities and costs has created a need for efficient model selection in AI systems. LLM routers address this need by dynamically choosing the most suitable model for a given…

机器学习 · 计算机科学 2024-10-30 Zesen Zhao , Shuowei Jin , Z. Morley Mao

The inherent capabilities of a language model (LM) and the reasoning strategies it employs jointly determine its performance in reasoning tasks. While test-time scaling is regarded as an effective approach to tackling complex reasoning…

计算与语言 · 计算机科学 2025-05-27 Zhihong Pan , Kai Zhang , Yuze Zhao , Yupeng Han

Uncertainty calibration is crucial for various machine learning applications, yet it remains challenging. Many models exhibit hallucinations - confident yet inaccurate responses - due to miscalibrated confidence. Here, we show that the…

机器学习 · 计算机科学 2025-03-28 Jeonghwan Cheon , Se-Bum Paik

Adjusting the latency, power, and accuracy of natural language understanding models is a desirable objective of an efficient architecture. This paper proposes an efficient Transformer architecture that adjusts the inference computational…

计算与语言 · 计算机科学 2024-09-20 Sajjad Kachuee , Mohammad Sharifkhani

In this paper we propose a constrained guaranteed cost robust model predictive controller (GCMPC) for uncertain discrete time systems. This controller was developed based on a quadratic cost functional and guarantee robustness with respect…

最优化与控制 · 数学 2018-09-21 Carlos M. Massera , Marco H. Terra , Denis F. Wolf

Large Language Model (LLM) inference is widely used in interactive assistants and agentic systems. In latency-sensitive deployments, inference time can become dominated by host-side overheads. Existing approaches typically expose this cost…

分布式、并行与集群计算 · 计算机科学 2026-03-16 Prabhu Vellaisamy , Shreesh Tripathi , Vignesh Natarajan , Surya Santhan Thenarasu , Shawn Blanton , John P. Shen

Large Language Models (LLMs) have revolutionized natural language processing, but their varying capabilities and costs pose challenges in practical applications. LLM routing addresses this by dynamically selecting the most suitable LLM for…

机器学习 · 计算机科学 2025-09-10 Pranoy Panda , Raghav Magazine , Chaitanya Devaguptapu , Sho Takemori , Vishal Sharma

Uncertainty estimation is crucial for evaluating Large Language Models (LLMs), particularly in high-stakes domains where incorrect answers result in significant consequences. Numerous approaches consider this problem, while focusing on a…

计算与语言 · 计算机科学 2025-03-04 Petr Sychev , Andrey Goncharov , Daniil Vyazhev , Edvard Khalafyan , Alexey Zaytsev

Credit risk scoring must support high-stakes lending decisions where data distributions change over time, probability estimates must be reliable, and group-level fairness is required. While modern machine learning models improve default…

风险管理 · 定量金融 2026-03-10 Srikumar Nayak