Buscar recursos académicos

Sample Selection Bias as a Specification Error

Sample Selection Bias as a Specification Error

Artículo

Material complementario disponible Artículo OpenAlex

James J. Heckman · Econometrica · 1979

Sample selection bias as a specification error This paper discusses the bias that results from using non-randomly selected samples to estimate behavioral relationships as an ordinary specification error or «omitted vari...

Idioma en

Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.

Material complementario

Variable Selection via Nonconcave Penalized Likelihood and its Oracle Properties

Variable Selection via Nonconcave Penalized Likelihood and its Oracle Properties

Artículo

Página del recurso disponible Artículo OpenAlex

Jianqing Fan; Runze Li · Journal of the American Statistical Association · 2001

Variable selection is fundamental to high-dimensional statistical modeling, including nonparametric regression. Many approaches in use are stepwise selection procedures, which can be computationally expensive and ignore ...

Idioma en

Página del recurso disponiblePágina de referencia del recurso. El texto completo no está confirmado automáticamente.

Página del recurso

Gene Selection for Cancer Classification using Support Vector Machines

Gene Selection for Cancer Classification using Support Vector Machines

Artículo

Página del recurso disponible Artículo OpenAlex

Isabelle Guyon; Jason Weston; S. Barnhill; Vladimir Vapnik · Machine Learning · 2002

Materias / palabras clave: Classifier (UML); Gene; Computer science; Feature selection; Redundancy (engineering); Gene selection; Support vector machine; Computational biology; sort; Artificial intelligence; Pattern recognition (psychology); Data ...

Idioma en

Página del recurso disponiblePágina de referencia del recurso. El texto completo no está confirmado automáticamente.

Página del recurso

ModelFinder: fast model selection for accurate phylogenetic estimates

ModelFinder: fast model selection for accurate phylogenetic estimates

Artículo

Página del recurso disponible Artículo OpenAlex

Subha Kalyaanamoorthy; Bùi Quang Minh; Thomas K. F. Wong; Arndt von Haeseler; Lars S. Jermiin · Nature Methods · 2017

Materias / palabras clave: Phylogenetic tree; Selection (genetic algorithm); Computational biology; Evolutionary biology; Model selection; Biology; Phylogenetics; Computer science; Genetics; Artificial intelligence; Gene

Idioma en

Página del recurso disponiblePágina de referencia del recurso. El texto completo no está confirmado automáticamente.

Página del recurso

Wrappers for feature subset selection

Wrappers for feature subset selection

Artículo

Página del recurso disponible Artículo OpenAlex

Ron Kohavi; George H. John · Artificial Intelligence · 1997

Materias / palabras clave: Feature selection; Artificial intelligence; Selection (genetic algorithm); Computer science; Feature (linguistics); Pattern recognition (psychology); Machine learning; Linguistics; Philosophy

Idioma en

Página del recurso disponiblePágina de referencia del recurso. El texto completo no está confirmado automáticamente.

Página del recurso

Optimized cost effective approach for selection of materialized views in data warehousing

Optimized cost effective approach for selection of materialized views in data warehousing

Artículo

Material complementario disponible Artículo SEDICI UNLP

Ashadevi, B. et al · SEDICI UNLP · 2009

A data warehouse efficiently processes a given set of queries by utilizing the multiple materialized views. Owing to the constraint on space and maintenance cost, the materialization of all views is unfeasible. One of th...

Idioma en

Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.

Material complementario

Spatial selection of sparse pivots for similarity search in metric spaces

Spatial selection of sparse pivots for similarity search in metric spaces

Artículo

Material complementario disponible Artículo SEDICI UNLP

Rodríguez Brisaboa, Nieves et al · SEDICI UNLP · 2007

Similarity search is a fundamental operation for applications that deal with unstructured data sources. In this paper we propose a new pivot-based method for similarity search, called Sparse Spatial Selection (SSS). The...

Idioma en

Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.

Material complementario

Tools selection criteria in software-developing Small and Medium Enterprises

Tools selection criteria in software-developing Small and Medium Enterprises

Artículo

Acceso abierto Artículo SEDICI UNLP

Rivas, Lornel et al · SEDICI UNLP · 2010

Nowadays,it's well-known that Small and Medium Enterprises (SMEs) generate important contributions to the software industry. Their particular characteristics constitute a challenge to decision makers when selecting techn...

Idioma en

Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.

Open Access

A scientist’s guide to Solifugae: How solifuges could advance research in ecology, evolution, and behaviour

A scientist’s guide to Solifugae: How solifuges could advance research in ecology, evolution, and behaviour

Artículo

Acceso abierto Artículo CONICET Digital

Hebets, Eileen A et al · Wiley Blackwell Publishing, Inc · 2023 · ISSN 0024-4082

Despite having >1200 described species and despite their nearly worldwide distribution and prevalence in many xeric ecosystems, relative to many other arachnid groups, we know little about the natural history and behavio...

Idioma eng

Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.

Open Access

Adaptive regression model for Parkinson’s disease diagnosis from speech signals using Box-Cox-based clustering and extremely randomization

Adaptive regression model for Parkinson’s disease diagnosis from speech signals using Box-Cox-based clustering and extremely randomization

Artículo

Acceso abierto Artículo DOAJ

Mahmoud Essam et al · Nature Portfolio · 2026 · ISSN 2045-2322

Abstract Parkinson’s Disease (PD) is a progressive neurodegenerative disorder that causes motor and cognitive impairments, affecting approximately 1% of individuals over 60 years of age. Speech impairments are among th...

LCC LCC:Medicine; TENDOlNjaWVuY2U~Idioma eng

Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.

Open Access

Avaliação de medidas da persistência da lactação de cabras da raça Saanen sob modelo de regressão aleatória Evaluation of persistency lactation measures of Saanen goats under random regression model

Artículo

Acceso abierto Artículo DOAJ

Gilberto Romeiro de Oliveira Menezes et al · Sociedade Brasileira de Zootecnia · 2010 · ISSN 1516-3598

Utilizaram-se 10.238 registros semanais de produção de leite no dia do controle, provenientes de 388 primeiras lactações de cabras da raça Saanen, na avaliação de seis medidas da persistência da lactação, a fim...

LCC LCC:Animal cultureIdioma eng

Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.

Open Access

Body chemical composition, tissue deposition rates and gain composition of young Nellore cattle selected for postweaning weight

Body chemical composition, tissue deposition rates and gain composition of young Nellore cattle selected for postweaning weight

Artículo

Acceso abierto Artículo DOAJ

Eduardo Figueiredo Martins Bonilha et al · Sociedade Brasileira de Zootecnia · 2014 · ISSN 1806-9290

Empty body and carcass chemical composition were determined in 67 Nellore bulls from Selection Nellore (NeS) and Control Nellore (NeC) herds of an animal breeding program for growth, slaughtered at 570 days of average ag...

LCC LCC:Animal cultureIdioma eng

Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.

Open Access

Developing a New Generic Health and Wellbeing Measure: Psychometric Survey Results for the EQ-HWB

Developing a New Generic Health and Wellbeing Measure: Psychometric Survey Results for the EQ-HWB

Artículo

Acceso abierto Artículo CONICET Digital

Peasgood, Tessa et al · Wiley Blackwell Publishing, Inc · 2022 · ISSN 1098-3015

Objectives: The development of measures such as the EQ-HWB (EQ Health and Wellbeing) requires selection of items. This study explored the psychometric performance of candidate items, testing their validity in patients, s...

Idioma eng

Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.

Open Access

Discrepancies between empirical and theoretical probability in human binary choices within the game of Go

Discrepancies between empirical and theoretical probability in human binary choices within the game of Go

Artículo

Acceso abierto Artículo DOAJ

Yong-Hwan Kim et al · Frontiers Media S.A · 2026 · ISSN 1664-1078

To make a decision or determine the order of things, people commonly use binary choices such as tossing a coin, with an assumption that the empirical probability equals to the theoretical probability. However, recent und...

LCC TENDOlBzeWNob2xvZ3k~Idioma eng

Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.

Open Access

Dissecting the genetic architecture of complex traits and its impact on genetic improvement programs: lessons learnt from the Virginia chicken lines Dissecando a arquitetura genética de características complexas e seu impacto sobre os programas de melhoramento genético: lições aprendidas com o frango Virginia

Artículo

Acceso abierto Artículo DOAJ

Mats E. Pettersson et al · Sociedade Brasileira de Zootecnia · 2010 · ISSN 1516-3598

Long-term selection experiments provide a valuable resource for understanding the genetic changes that take place in animal improvement programs. The Virginia chicken lines have for more than 50 years been subjected to s...

LCC LCC:Animal cultureIdioma eng

Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.

Open Access

Does Early Homo Dental Variation Follow a Neutral Pattern of Divergence?

Does Early Homo Dental Variation Follow a Neutral Pattern of Divergence?

Artículo

Material complementario disponible Artículo DOAJ

Luca Del Giacco et al · Paleoanthropology Society · 2025 · ISSN 1545-0031

The fragmentary early Homo fossil record represents a temporally expansive and complex lineage that is morphologically and geographically diverse. This large amount of variation, which also captures the transition period...

LCC TENDOkZvc3NpbCBtYW4uIEh1bWFuIHBhbGVvbnRvbG9neQ~~; LCC:ArchaeologyIdioma eng

Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.

Material complementario

Estimation of genetic parameters for growth traits in Tabapuã cattle using a multi-trait model

Estimation of genetic parameters for growth traits in Tabapuã cattle using a multi-trait model

Artículo

Acceso abierto Artículo DOAJ

Gilberto Romeiro de Oliveira Menezes et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1806-9290

To provide information that can contribute to the genetic evaluation and selection in Tabapuã cattle, genetic parameters were estimated for growth traits using a multi-trait animal model. (Co)variance components were es...

LCC LCC:Animal cultureIdioma eng

Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.

Open Access

Evaluating Hominin taxic Diversity in the African Middle Pleistocene With Evolutionary Quantitative Genetics

Evaluating Hominin taxic Diversity in the African Middle Pleistocene With Evolutionary Quantitative Genetics

Artículo

Acceso abierto Artículo DOAJ

Lauren Schroeder et al · Paleoanthropology Society · 2025 · ISSN 1545-0031

The Middle Pleistocene hominin fossil record is taxonomically diverse, with Homo sapiens, Homo neanderthalesis, Homo naledi, and Homo erectus, all existing at various times during this period. These species are generally...

LCC TENDOkZvc3NpbCBtYW4uIEh1bWFuIHBhbGVvbnRvbG9neQ~~; LCC:ArchaeologyIdioma eng

Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.

Open Access

Genetic breeding on the bee Melipona scutellaris (Apidae, Meliponinae)

Genetic breeding on the bee Melipona scutellaris (Apidae, Meliponinae)

Artículo

Material complementario disponible Artículo DOAJ

José de Ribamar Silva Barros · Instituto Nacional de Pesquisas da Amazônia · 2006 · ISSN 0044-5967

A selection of queens of Melipona scutellaris through the most productive colonies were carried out during eight months in an orange honeyflow. Each of the colonies was evaluated by its production, that is, the gross wei...

LCC LCC:Science (General)Idioma eng

Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.

Material complementario

Genetic improvement of beef cattle through opportunities in genomics Melhoramento genético de bovinos de corte utilizando informações da genômica

Genetic improvement of beef cattle through opportunities in genomics Melhoramento genético de bovinos de corte utilizando informações da genômica

Artículo

Acceso abierto Artículo DOAJ

Stephen Miller · Sociedade Brasileira de Zootecnia · 2010 · ISSN 1516-3598

Genomics will improve the efficiency of beef cattle genetic improvement programs through the incorporation of genomic predictions into traditional genetic evaluations. The global dairy cattle breeding industry has been c...

LCC LCC:Animal cultureIdioma eng

Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.

Open Access

Improving Steganosystem Efficiency as an Integral Part of Ensuring the Routine Operation of Energy Infrastructure Facilities

Improving Steganosystem Efficiency as an Integral Part of Ensuring the Routine Operation of Energy Infrastructure Facilities

Artículo

Material complementario disponible Artículo DOAJ

Bobok I.I. et al · Academy of Sciences of Moldova · 2026 · ISSN 1857-0070

Steganography currently holds a vital position in information security, reflecting its growing importance within the energy industry. Steganographic methods are employed to ensure data integrity and authentication in Sma...

LCC LCC:Electrical engineering. Electronics. Nuclear engineering; TENDOlByb2R1Y3Rpb24gb2YgZWxlY3RyaWMgZW5lcmd5IG9yIHBvd2VyLiIdioma eng

Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.

Material complementario

Mitochondrial genome evolution across marine–freshwater divergence in the flatfish genus Brachirus

Mitochondrial genome evolution across marine–freshwater divergence in the flatfish genus Brachirus

Artículo

Acceso abierto Artículo DOAJ

Hyeongwoo Choi et al · BMC · 2026 · ISSN 2730-7182

Abstract Freshwater adaptation from marine ancestors represents a major ecological transition in teleost evolution, yet its genomic basis remains poorly understood. The genus Brachirus is predominantly marine, although a...

LCC TENDOkVjb2xvZ3k~; TENDOkV2b2x1dGlvbg~~Idioma eng

Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.

Open Access

Optimization of family sizes in sets of crosses with a greedy allocation strategy based on automatic differentiation

Optimization of family sizes in sets of crosses with a greedy allocation strategy based on automatic differentiation

Artículo

Acceso abierto Artículo DOAJ

Uche Joshua Okoye et al · Frontiers Media S.A · 2026 · ISSN 1664-462X

Line breeding programs of autogamous crops like barley and wheat are characterized by multiple crosses with high variability in cross means and segregation variances. From theory of order statistics, we derived formulas ...

LCC TENDOlBsYW50IGN1bHR1cmU~Idioma eng

Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.

Open Access