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Mixed membership models extend classical clustering by substituting the notion of uncertain membership with the notion of mixed membership. In particular, these models allow each observation to partially belong to multiple pure membership…

统计方法学 · 统计学 2026-04-14 Donatello Telesca , Nicholas Marco , Emma Landry

A new method is proposed to perform joint analysis of longitudinal and cross-sectional growth data. Clustering is first performed to group similar subjects in cross-sectional data to form a pseudo longitudinal data set, then the pseudo…

统计方法学 · 统计学 2025-09-24 Long Chen , Ji Chen , Yingchun Zhou

In a previous work ("Abstract Data Type Systems", TCS 173(2), 1997), the last two authors presented a combined language made of a (strongly normalizing) algebraic rewrite system and a typed lambda-calculus enriched by pattern-matching…

计算机科学中的逻辑 · 计算机科学 2013-09-17 Frédéric Blanqui , Jean-Pierre Jouannaud , Mitsuhiro Okada

This paper concerns the paraconsistent logic LPQ$^{\supset,\mathsf{F}}$ and an application of it in the area of relational database theory. The notions of a relational database, a query applicable to a relational database, and a consistent…

数据库 · 计算机科学 2024-03-15 C. A. Middelburg

Relevance-based explanation is a scheme in which partial assignments to Bayesian belief network variables are explanations (abductive conclusions). We allow variables to remain unassigned in explanations as long as they are irrelevant to…

人工智能 · 计算机科学 2013-03-08 Solomon Eyal Shimony

The paper considers general multiplicative models for complete and incomplete contingency tables that generalize log-linear and several other models and are entirely coordinate free. Sufficient conditions of the existence of maximum…

统计方法学 · 统计学 2011-03-04 Anna Klimova , Tamás Rudas , Adrian Dobra

We describe two new related resources that facilitate modelling of general knowledge reasoning in 4th grade science exams. The first is a collection of curated facts in the form of tables, and the second is a large set of crowd-sourced…

计算与语言 · 计算机科学 2016-02-15 Sujay Kumar Jauhar , Peter Turney , Eduard Hovy

Applications such as the analysis of microbiome data have led to renewed interest in statistical methods for compositional data, i.e., multivariate data in the form of probability vectors that contain relative proportions. In particular,…

统计方法学 · 统计学 2021-09-13 Shiqing Yu , Mathias Drton , Ali Shojaie

We propose learning discrete structured representations from unlabeled data by maximizing the mutual information between a structured latent variable and a target variable. Calculating mutual information is intractable in this setting. Our…

机器学习 · 计算机科学 2020-07-17 Karl Stratos , Sam Wiseman

Configurational information is generated when three or more sources of variance interact. The variations not only disturb each other relationally, but by selecting upon each other, they are also positioned in a configuration. A…

物理与社会 · 物理学 2009-11-10 Loet Leydesdorff

We derive a well-defined renormalized version of mutual information that allows to estimate the dependence between continuous random variables in the important case when one is deterministically dependent on the other. This is the situation…

机器学习 · 计算机科学 2021-05-26 Leopoldo Sarra , Andrea Aiello , Florian Marquardt

Regression models for categorical data are specified in heterogeneous ways. We propose to unify the specification of such models. This allows us to define the family of reference models for nominal data. We introduce the notion of…

统计方法学 · 统计学 2014-05-13 Jean Peyhardi , Catherine Trottier , Yann Guédon

While explainability is a desirable characteristic of increasingly complex black-box models, modern explanation methods have been shown to be inconsistent and contradictory. The semantics of explanations is not always fully understood - to…

人工智能 · 计算机科学 2024-08-09 Omer Reingold , Judy Hanwen Shen , Aditi Talati

For exchangeable data, mixture models are an extremely useful tool for density estimation due to their attractive balance between smoothness and flexibility. When additional covariate information is present, mixture models can be extended…

统计方法学 · 统计学 2023-08-01 Sara Wade , Vanda Inacio , Sonia Petrone

Graphical models are an important tool in exploring relationships between variables in complex, multivariate data. Methods for learning such graphical models are well developed in the case where all variables are either continuous or…

机器学习 · 统计学 2024-02-15 Konstantin Göbler , Anne Miloschewski , Mathias Drton , Sach Mukherjee

In this article we focus on evolving information systems. First a delimitation of the concept of evolution is provided, resulting in a first attempt to a general theory for such evolutions. The theory makes a distinction between the…

人工智能 · 计算机科学 2021-05-25 H. A. Proper , Th. P. van der Weide

Since Chen's Entity-Relationship (ER) model, conceptual modeling has been playing a fundamental role in relational data design. In this paper we consider an extended ER (EER) model enriched with cardinality constraints, disjointness…

数据库 · 计算机科学 2015-03-13 Andrea Cali , Davide Martinenghi

We study a class of missingness mechanisms, called sequentially additive nonignorable, for modeling multivariate data with item nonresponse. These mechanisms explicitly allow the probability of nonresponse for each variable to depend on the…

统计方法学 · 统计学 2019-02-19 Mauricio Sadinle , Jerome P. Reiter

Texts in natural language contain a lot of temporal information, both explicit and implicit. Verbs and temporal adjuncts carry most of the explicit information, but for a full understanding general world knowledge and default assumptions…

计算与语言 · 计算机科学 2009-09-25 Sven Verdoolaege , Marc Denecker , Frank Van Eynde

We consider an approximation scheme for multivariate information assuming that synergistic information only appearing in higher order joint distributions is suppressed, which may hold in large classes of systems. Our approximation scheme…

统计方法学 · 统计学 2020-09-03 Masahiro Takimoto