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In this paper, we study the linear transformation model in the most general setup. This model includes many important and popular models in statistics and econometrics as special cases. Although it has been studied for many years, the…

统计方法学 · 统计学 2021-03-26 Tao Yu , Pengfei Li , Baojiang Chen , Ao Yuan , Jing Qin

For latent class models where the class weights depend on individual covariates, we derive a simple expression for computing the score vector and a convenient hybrid between the observed and the expected information matrices which is always…

统计计算 · 统计学 2015-11-13 Antonio Forcina

We explore the possibility of using machine learning to identify interesting mathematical structures by using certain quantities that serve as fingerprints. In particular, we extract features from integer sequences using two empirical laws:…

机器学习 · 计算机科学 2018-09-11 Chai Wah Wu

Footstep recognition is a relatively new biometric which aims to discriminate people using walking characteristics. There are several feature and technology have been adopted in various research. This study will attempt to show a…

人机交互 · 计算机科学 2024-11-27 Arif Rachmat

We introduce a class of proper scoring rules for evaluating spatial point process forecasts based on summary statistics. These scoring rules rely on Monte-Carlo approximations of expectations and can therefore easily be evaluated for any…

Motion artifacts can compromise the diagnostic value of computed tomography (CT) images. Motion correction approaches require a per-scan estimation of patient-specific motion patterns. In this work, we train a score-based model to act as a…

计算机视觉与模式识别 · 计算机科学 2024-04-24 Mareike Thies , Noah Maul , Siyuan Mei , Laura Pfaff , Nastassia Vysotskaya , Mingxuan Gu , Jonas Utz , Dennis Possart , Lukas Folle , Fabian Wagner , Andreas Maier

A vital aspect of the classification based model construction process is the calibration of the scoring function. One of the weaknesses of the calibration process is that it does not take into account the information about the relative…

机器学习 · 计算机科学 2020-10-05 Pawel Trajdos , Robert Burduk

Several authors have explained that the likelihood ratio measures the strength of the evidence represented by observations in statistical problems. This idea works fine when the goal is to evaluate the strength of the available evidence for…

人工智能 · 计算机科学 2013-02-01 Paul-Andre Monney

Many existing conditional score-based data generation methods utilize Bayes' theorem to decompose the gradients of a log posterior density into a mixture of scores. These methods facilitate the training procedure of conditional score…

Forensic examination of evidence like firearms and toolmarks, traditionally involves a visual and therefore subjective assessment of similarity of two questioned items. Statistical models are used to overcome this subjectivity and allow…

人机交互 · 计算机科学 2021-11-03 Ganesh Krishnan , Heike Hofmann

This paper shows that sequential statistical analysis techniques can be generalised to the problem of selecting between alternative forecasting methods using scoring rules. A return to basic principles is necessary in order to show that…

统计理论 · 数学 2025-05-15 David T. Frazier , Donald S. Poskitt

Scoring rules are used to evaluate the quality of predictions that take the form of probability distributions. A scoring rule is strictly proper if its expected value is uniquely minimized by the true probability distribution. One of the…

统计方法学 · 统计学 2021-04-05 Zoe Guan

Evaluating explanation techniques using human subjects is costly, time-consuming and can lead to subjectivity in the assessments. To evaluate the accuracy of local explanations, we require access to the true feature importance scores for a…

机器学习 · 计算机科学 2022-01-31 Amir Hossein Akhavan Rahnama , Judith Butepage , Pierre Geurts , Henrik Bostrom

Evaluating mathematical reasoning in LLMs is constrained by limited benchmark sizes and inherent model stochasticity, yielding high-variance accuracy estimates and unstable rankings across platforms. On difficult problems, an LLM may fail…

机器学习 · 计算机科学 2026-02-04 Zihan Dong , Zhixian Zhang , Yang Zhou , Can Jin , Ruijia Wu , Linjun Zhang

The field of Statistical Relational Learning (SRL) is concerned with learning probabilistic models from relational data. Learned SRL models are typically represented using some kind of weighted logical formulas, which make them considerably…

人工智能 · 计算机科学 2017-05-22 Ondrej Kuzelka , Jesse Davis , Steven Schockaert

A simple and common type of medical research involves the comparison of one treatment against another. The logical aim should be both to establish which treatment is superior and the strength of evidence supporting this conclusion, a task…

统计方法学 · 统计学 2022-12-08 Nicholas Adams

Nystr\"om approximation is a fast randomized method that rapidly solves kernel ridge regression (KRR) problems through sub-sampling the n-by-n empirical kernel matrix appearing in the objective function. However, the performance of such a…

机器学习 · 统计学 2021-03-10 Yifan Chen , Yun Yang

Spoken language recognition (SLR) refers to the automatic process used to determine the language present in a speech sample. SLR is an important task in its own right, for example, as a tool to analyze or categorize large amounts of…

计算与语言 · 计算机科学 2022-08-15 Luciana Ferrer , Diego Castan , Mitchell McLaren , Aaron Lawson

We provide a semi-parametric analysis for the proportional likelihood ratio model, proposed by Luo & Tsai (2012). We study the tangent spaces for both the parameter of interest and the nuisance parameter, and obtain an explicit expression…

统计理论 · 数学 2019-07-15 Yair Goldberg , Malka Gorfine

This paper addresses the passive detection of a common rank-one subspace signal received in two multi-sensor arrays. We consider the case of a one-antenna transmitter sending a common Gaussian signal, independent Gaussian noises with…

信号处理 · 电气工程与系统科学 2024-02-13 David Ramírez , Ignacio Santamaria , Louis L. Scharf