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We study the task of conducting structured reasoning as generating a reasoning graph from natural language input using large language models (LLMs). Previous approaches have explored various prompting schemes, yet they suffer from error…

计算与语言 · 计算机科学 2024-06-04 Inderjeet Nair , Lu Wang

Recent work in large language modeling (LLMs) has used fine-tuning to align outputs with the preferences of a prototypical user. This work assumes that human preferences are static and homogeneous across individuals, so that aligning to a a…

The practicality of reinforcement learning algorithms has been limited due to poor scaling with respect to the problem size, as the sample complexity of learning an $\epsilon$-optimal policy is $\tilde{\Omega}\left(|S||A|H^3 /…

机器学习 · 计算机科学 2023-06-12 Tyler Sam , Yudong Chen , Christina Lee Yu

We investigate whether socio-economic indicators like household wealth leave recoverable imprints in satellite imagery (capturing physical features) and Internet-sourced text (reflecting historical/economic narratives). Using Demographic…

人工智能 · 计算机科学 2025-11-24 Satiyabooshan Murugaboopathy , Connor T. Jerzak , Adel Daoud

The (non-)equivalence of canonical and microcanonical ensembles is a fundamental question in statistical physics, concerning whether the use of soft and hard constraints in the maximum-entropy construction leads to the same description of a…

统计力学 · 物理学 2025-11-25 Francesca Giuffrida , Tiziano Squartini , Peter Grünwald , Diego Garlaschelli

This work presents an approach for combining household demographic and living standards survey questions with features derived from satellite imagery to predict the poverty rate of a region. Our approach utilizes visual features obtained…

Cities are characterized by the coexistence of general aggregate patterns, along with many local variations. This poses challenges for analyses of urban phenomena, which tend to be either too aggregated or too local, depending on the…

物理与社会 · 物理学 2025-09-30 Luís M. A. Bettencourt , Ivanna Rodriguez , Jordan T. Kemp , José Lobo

Deep neural networks trained through end-to-end learning have achieved remarkable success across various domains in the past decade. However, the end-to-end learning strategy, originally designed to minimize predictive loss in a black-box…

机器学习 · 计算机科学 2025-06-11 Canlin Zhang , Xiuwen Liu

Deep learning has achieved state-of-the-art performance on several computer vision tasks and domains. Nevertheless, it still has a high computational cost and demands a significant amount of parameters. Such requirements hinder the use in…

计算机视觉与模式识别 · 计算机科学 2023-09-19 Samuel Felipe dos Santos , Rodrigo Berriel , Thiago Oliveira-Santos , Nicu Sebe , Jurandy Almeida

We present a stochastic agent-based model for the distribution of personal incomes in a developing economy. We start with the assumption that incomes are determined both by individual labour and by stochastic effects of trading and…

综合金融 · 定量金融 2010-09-23 Amit K Chattopadhyay , Graeme J Ackland , Sushanta K Mallick

A fundamental problem associated with the task of network reconstruction from dynamical or behavioral data consists in determining the most appropriate model complexity in a manner that prevents overfitting, and produces an inferred network…

机器学习 · 统计学 2025-03-24 Tiago P. Peixoto

Learning from data in the presence of outliers is a fundamental problem in statistics. Until recently, no computationally efficient algorithms were known to compute the mean of a high dimensional distribution under natural assumptions in…

数据结构与算法 · 计算机科学 2021-01-22 Yeshwanth Cherapanamjeri , Sidhanth Mohanty , Morris Yau

We propose a unified framework for fair regression tasks formulated as risk minimization problems subject to a demographic parity constraint. Unlike many existing approaches that are limited to specific loss functions or rely on challenging…

统计方法学 · 统计学 2026-01-16 Yongzhen Feng , Weiwei Wang , Raymond K. W. Wong , Xianyang Zhang

An ideal outcome of pattern mining is a small set of informative patterns, containing no redundancy or noise, that identifies the key structure of the data at hand. Standard frequent pattern miners do not achieve this goal, as due to the…

数据结构与算法 · 计算机科学 2019-02-11 Nikolaj Tatti , Jilles Vreeken

The statistical machine learning community has demonstrated considerable resourcefulness over the years in developing highly expressive tools for estimation, prediction, and inference. The bedrock assumptions underlying these developments…

统计方法学 · 统计学 2022-02-10 Alnur Ali , Maxime Cauchois , John C. Duchi

In previous work we developed a method of learning Bayesian Network models from raw data. This method relies on the well known minimal description length (MDL) principle. The MDL principle is particularly well suited to this task as it…

人工智能 · 计算机科学 2013-03-08 Wai Lam , Fahiem Bacchus

We present a novel algorithm for generating robust and consistent hypotheses for multiple-structure model fitting. Most of the existing methods utilize random sampling which produce varying results especially when outlier ratio is high. For…

计算机视觉与模式识别 · 计算机科学 2018-07-26 Kwang Hee Lee , Chanki Yu , Sang Wook Lee

We consider the fundamental problem of inferring the causal direction between two univariate numeric random variables $X$ and $Y$ from observational data. The two-variable case is especially difficult to solve since it is not possible to…

机器学习 · 统计学 2018-08-23 Alexander Marx , Jilles Vreeken

It is shown that the two-part Minimum Description Length Principle can be used to discriminate among different models that can explain a given observed dataset. The description length is chosen to be the sum of the lengths of the message…

天体物理学 · 物理学 2008-11-26 A. Asensio Ramos

Recent studies on frequent itemset mining algorithms resulted in significant performance improvements. However, if the minimal support threshold is set too low, or the data is highly correlated, the number of frequent itemsets itself can be…

数据库 · 计算机科学 2007-05-23 Toon Calders , Bart Goethals