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Typically, machine learning models are trained and evaluated without making any distinction between users (e.g, using traditional hold-out and cross-validation). However, this produces inaccurate performance metrics estimates in multi-user…

机器学习 · 计算机科学 2023-12-11 Enrique Garcia-Ceja , Luciano Garcia-Banuelos , Nicolas Jourdan

A significant challenge in maintaining real-world machine learning models is responding to the continuous and unpredictable evolution of data. Most practitioners are faced with the difficult question: when should I retrain or update my…

机器学习 · 计算机科学 2025-05-22 Regol Florence , Schwinn Leo , Sprague Kyle , Coates Mark , Markovich Thomas

Contrastive divergence is a popular method of training energy-based models, but is known to have difficulties with training stability. We propose an adaptation to improve contrastive divergence training by scrutinizing a gradient term that…

机器学习 · 计算机科学 2021-06-14 Yilun Du , Shuang Li , Joshua Tenenbaum , Igor Mordatch

Despite the widespread multilingual deployment of large language models, post-training pipelines remain predominantly English-centric, contributing to performance disparities across languages. We present a systematic, controlled study of…

计算与语言 · 计算机科学 2026-04-16 Mehak Dhaliwal , Shashwat Chaurasia , Yao Qin , Dezhi Hong , Thomas Butler

Modern foundation models often undergo iterative ``bootstrapping'' in their post-training phase: a model generates synthetic data, an external verifier filters out low-quality samples, and the high-quality subset is used for further…

机器学习 · 计算机科学 2025-10-17 Pu Yang , Yunzhen Feng , Ziyuan Chen , Yuhang Wu , Zhuoyuan Li

The response threshold model explains the emergence of division of labor (i.e., task specialization) in an unstructured population by assuming that the individuals have different propensities to work on different tasks. The incentive to…

种群与进化 · 定量生物学 2024-04-29 José F. Fontanari , Viviane M. de Oliveira , Paulo R. A. Campos

Deep learning has shown that learned functions can dramatically outperform hand-designed functions on perceptual tasks. Analogously, this suggests that learned optimizers may similarly outperform current hand-designed optimizers, especially…

神经与进化计算 · 计算机科学 2019-06-11 Luke Metz , Niru Maheswaranathan , Jeremy Nixon , C. Daniel Freeman , Jascha Sohl-Dickstein

Tool learning methods have enhanced the ability of large language models (LLMs) to interact with real-world applications. Many existing works fine-tune LLMs or design prompts to enable LLMs to select appropriate tools and correctly invoke…

计算与语言 · 计算机科学 2024-07-04 Chengrui Huang , Zhengliang Shi , Yuntao Wen , Xiuying Chen , Peng Han , Shen Gao , Shuo Shang

Test-time training provides a new approach solving the problem of domain shift. In its framework, a test-time training phase is inserted between training phase and test phase. During test-time training phase, usually parts of the model are…

机器学习 · 计算机科学 2022-10-05 Bochao Zhang , Rui Shao , Jingda Du , PC Yuen

This paper targets the problem of multi-task dense prediction which aims to achieve simultaneous learning and inference on a bunch of multiple dense prediction tasks in a single framework. A core objective in design is how to effectively…

计算机视觉与模式识别 · 计算机科学 2023-07-18 Siwei Yang , Hanrong Ye , Dan Xu

Organisations rely upon group formation to solve complex tasks, and groups often adapt to the demands of the task they face by changing their composition periodically. Previous research comes to ambiguous results regarding the effects of…

综合经济学 · 经济学 2022-03-18 Darío Blanco-Fernández , Stephan Leitner , Alexandra Rausch

Reasoning post-training improves Large Language Models (LLMs) on complex tasks such as mathematics and coding, but its benefits across diverse multimodal tasks remains uncertain. The trend of releasing parallel "Instruct" and "Thinking"…

计算与语言 · 计算机科学 2026-05-12 Ruobing Zheng , Tianqi Li , Jianing Li , Qingpei Guo , Yi Yuan , Jingdong Chen

The great majority of engineered products are subject to thermo-mechanical loads which vary with the product environment during the various phases of its life-cycle (machining, assembly, intended service use...). Those load variations may…

经典物理 · 物理学 2009-05-07 Guillaume Mandil , Alain Desrochers , Alain Rivière

Critical learning periods are periods early in development where temporary sensory deficits can have a permanent effect on behavior and learned representations. Despite the radical differences between biological and artificial networks,…

机器学习 · 计算机科学 2024-05-27 Michael Kleinman , Alessandro Achille , Stefano Soatto

Recently there has been a surge of research on improving the communication efficiency of distributed training. However, little work has been done to systematically understand whether the network is the bottleneck and to what extent. In this…

分布式、并行与集群计算 · 计算机科学 2020-06-26 Zhen Zhang , Chaokun Chang , Haibin Lin , Yida Wang , Raman Arora , Xin Jin

Distributing development tasks in the context of global software development bears both many risks and many opportunities. Nowadays, distributed development is often driven by only a few factors or even just a single factor such as…

软件工程 · 计算机科学 2014-02-10 Ansgar Lamersdorf , Jürgen Münch , Dieter Rombach

Flexibility is a cornerstone of operations management, crucial to hedge stochasticity in product demands, service requirements, and resource allocation. In two-sided platforms, flexibility is also two-sided and can be viewed as the…

综合经济学 · 经济学 2026-03-24 Daniel Freund , Sébastien Martin , Jiayu Kamessi Zhao

Material training is a method to endow materials with specific responses through external driving. We study the complexity of attainable responses, as expressed in the number of sites that are simultaneously controlled. With increased…

软凝聚态物质 · 物理学 2022-10-12 Himangsu Bhaumik , Daniel Hexner

Recommender systems aim to provide item recommendations for users, and are usually faced with data sparsity problem (e.g., cold start) in real-world scenarios. Recently pre-trained models have shown their effectiveness in knowledge transfer…

信息检索 · 计算机科学 2020-09-22 Zheni Zeng , Chaojun Xiao , Yuan Yao , Ruobing Xie , Zhiyuan Liu , Fen Lin , Leyu Lin , Maosong Sun

Methods to learn under algorithmic triage have predominantly focused on supervised learning settings where each decision, or prediction, is independent of each other. Under algorithmic triage, a supervised learning model predicts a fraction…

机器学习 · 计算机科学 2021-09-24 Eleni Straitouri , Adish Singla , Vahid Balazadeh Meresht , Manuel Gomez-Rodriguez