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相关论文: Score-based likelihood ratios to evaluate forensic…

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We propose an intuitive, machine-learning approach to multiparameter inference, dubbed the InferoStatic Networks (ISN) method, to model the score and likelihood ratio estimators in cases when the probability density can be sampled but not…

机器学习 · 统计学 2023-02-06 Kyoungchul Kong , Konstantin T. Matchev , Stephen Mrenna , Prasanth Shyamsundar

[Background] Systematic literature reviews (SLRs) are essential for synthesizing evidence in Software Engineering (SE), but keeping them up-to-date requires substantial effort. Study selection, one of the most labor-intensive steps,…

Scoring rules are aimed at evaluation of the quality of predictions, but can also be used for estimation of parameters in statistical models. We propose estimating parameters of multivariate spatial models by maximising the average…

统计方法学 · 统计学 2024-08-23 Helga Kristin Olafsdottir , Holger Rootzén , David Bolin

In natural language processing (NLP), the likelihood ratios (LRs) of N-grams are often estimated from the frequency information. However, a corpus contains only a fraction of the possible N-grams, and most of them occur infrequently. Hence,…

计算与语言 · 计算机科学 2022-04-15 Masato Kikuchi , Mitsuo Yoshida , Kyoji Umemura , Tadachika Ozono

We propose a method for estimating the Fisher score--the gradient of the log-likelihood with respect to model parameters--using score matching. By introducing a latent parameter model, we show that the Fisher score can be learned by…

宇宙学与河外天体物理 · 物理学 2025-07-11 Ce Sui , Shivam Pandey , Benjamin D. Wandelt

We propose Path Signatures Logistic Regression (PSLR), a semi-parametric framework for classifying vector-valued functional data with scalar covariates. Classical functional logistic regression models rely on linear assumptions and fixed…

机器学习 · 统计学 2025-07-10 Pengcheng Zeng , Siyuan Jiang

Estimating the score, i.e., the gradient of log density function, from a set of samples generated by an unknown distribution is a fundamental task in inference and learning of probabilistic models that involve flexible yet intractable…

机器学习 · 统计学 2020-07-01 Yuhao Zhou , Jiaxin Shi , Jun Zhu

We propose a machine learning pipeline for forensic shoeprint pattern matching that improves on the accuracy and generalisability of existing methods. We extract 2D coordinates from shoeprint scans using edge detection and align the two…

图像与视频处理 · 电气工程与系统科学 2024-05-27 Divij Jain , Saatvik Kher , Lena Liang , Yufeng Wu , Ashley Zheng , Xizhen Cai , Anna Plantinga , Elizabeth Upton

Reparameterization (RP) and likelihood ratio (LR) gradient estimators are used to estimate gradients of expectations throughout machine learning and reinforcement learning; however, they are usually explained as simple mathematical tricks,…

机器学习 · 计算机科学 2021-06-01 Paavo Parmas , Masashi Sugiyama

As the significance of understanding the cause-and-effect relationships among variables increases in the development of modern systems and algorithms, learning causality from observational data has become a preferred and efficient approach…

机器学习 · 计算机科学 2024-11-28 Xiaoxuan Li , Yao Liu , Ruoyu Wang , Lina Yao

For several decades, legal and scientific scholars have argued that conclusions from forensic examinations should be supported by statistical data and reported within a probabilistic framework. Multiple models have been proposed to quantify…

应用统计 · 统计学 2019-08-06 Cedric Neumann

In feature selection problems, knockoffs are synthetic controls for the original features. Employing knockoffs allows analysts to use nearly any variable importance measure or "feature statistic" to select features while rigorously…

统计方法学 · 统计学 2024-10-02 Asher Spector , William Fithian

Likelihood ratios (LRs), which are commonly used for probabilistic data processing, are often estimated based on the frequency counts of individual elements obtained from samples. In natural language processing, an element can be a…

计算与语言 · 计算机科学 2021-10-05 Masato Kikuchi , Kento Kawakami , Kazuho Watanabe , Mitsuo Yoshida , Kyoji Umemura

A profile likelihood ratio test is proposed for inferences on the index coefficients in generalized single-index models. Key features include its simplicity in implementation, invariance against parametrization, and exhibiting substantially…

统计方法学 · 统计学 2017-06-27 Nanxi Zhang , Alan Huang

In forensic genetics, short tandem repeats (STRs) are used for human identification (HID). Degraded biological trace samples with low amounts of short DNA fragments (low-quality DNA samples) pose a challenge for STR typing. Predefined…

This paper introduces a first implementation of a novel likelihood-ratio-based approach for constructing confidence intervals for neural networks. Our method, called DeepLR, offers several qualitative advantages: most notably, the ability…

机器学习 · 统计学 2023-08-07 Laurens Sluijterman , Eric Cator , Tom Heskes

The paper considers parameter estimation in count data models using penalized likelihood methods. The motivating data consists of multiple independent count variables with a moderate sample size per variable. The data were collected during…

统计方法学 · 统计学 2026-04-15 Minh Thu Bui , Cornelis J. Potgieter , Akihito Kamata

Uncertainty estimation (UE) of generative large language models (LLMs) is crucial for evaluating the reliability of generated sequences. A significant subset of UE methods utilize token probabilities to assess uncertainty, aggregating…

A machine can understand human activities, and the meaning of signs can help overcome the communication barriers between the inaudible and ordinary people. Sign Language Recognition (SLR) is a fascinating research area and a crucial task…

计算机视觉与模式识别 · 计算机科学 2024-09-02 M. Madhiarasan , Partha Pratim Roy

We provide methods to validate and compare sensor outputs, or inference algorithms applied to sensor data, by adapting statistical scoring rules. The reported output should either be in the form of a prediction interval or of a parameter…

数据分析、统计与概率 · 物理学 2015-07-07 A. D. Martin , T. C. A. Molteno , M. Parry