Comparative study of algorithms for mining association rules: Traditional approach versus multi-relational approach

The multi-relational Data Mining approach has emerged as alternative to the analysis of structured data, such as relational databases. Unlike traditional algorithms, the multi-relational proposals allow mining directly multiple tables, avoiding the costly join operations. In this paper, is presented a comparative study involving the traditional Patricia Mine algorithm and its corresponding multi-relational proposed, MR-Radix in order to evaluate the performance of two approaches for mining association rules are used for relational databases. This study presents two original contributions: the proposition of an algorithm multi-relational MR-Radix, which is efficient for use in relational databases, both in terms of execution time and in relation to memory usage and the presentation of the empirical approach multirelational advantage in performance over several tables, which avoids the costly join operations from multiple tables. © 2011 IEEE.

A influência da dança na percepção de estruturas rítmicas monotônicas em adolescentes surdos

Dance activities were administered to a group of deaf adolescents via visual and auditory stimuli in order to improve their perceptions of monotonic rhythmic structures. Status of psychomotor development was also assessed before and after participation in the program. Twenty deaf adolescents (ages between 12 and 13 years) were divided into two groups, experimental (EG) and control (CG). Before and after participating in the program for 26 weeks, participants were evaluated in rhythmical tasks adapted from the classical test of M. Stambak. The tasks included the perception of drum beats, actually viewed hit movements, or heard via a sound amplifier. Psychomotor tests were administered only to the EG. The period of practice with dance activities changed the individuals' performance in the monotonic rhythmic test. Also, the success rate improved in both, visual and auditory input tasks. Individuals in the CG showed no changes in performance. For the EG, in the post-test, the status of psychomotor development was six months below the target age of the tests (i.e., 11 years). Findings suggested that dance activities can change deaf individuals' auditory perception of rhythmic structures. Participation in such a program can also positively affect psychomotor development. © FTCD/FIP-MOC.

Relação entre o desempenho e período de recuperação após enfermidades ósseas do membro torácico distal de cavalos puro sangue inglês

It is well established in the literature that musculoskeletal injuries are important compromising agents in the performance of Thoroughbred horses. In Brazil, there are no studies on the interrelation between lay-up period post-injury and retirement of racehorses due to musculoskeletal injures. The aim of this study is to determine the relationship between rehabilitation times of track injures and variables of prior race performance and later return to competitions. The radiographic reports and athletic history of 416 thoroughbreds during the period between 2003 and 2006 were examined; they were selected based on continued presentations after injury diagnosis. The temporal variables (post-injury rehabilitation time) and performance variables (race score before and after injury) were evaluated by multivariate correspondence analysis of the data and represented in perceptual maps. Correspondence was observed between most of the animals that had a short lay-up post-injury and variables that denote decline in subsequent performance. Considering the integrity of the bone healing process as crucial for the horse to be able to handle later training routines and competitions, shortening this period could lead to an imbalance of the bone repair metabolism, thus resulting in performance decline and compromise of the horse athletic career.

A coordenação bimanual em função do foco atencional

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Testes cognitivos para avaliação de memória e aprendizado em cães (Canis lupus familiaris)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Alunos precoces com indicadores de altas habilidades/superdotação no Ensino Fundamental I: identificação e situações (des)favorecedoras em sala de aula

Pós-graduação em Educação - FFC

Adaptação de bovinos ao confinamento: avaliação do temperamento e dos comportamentos social e alimentar

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Estratégia competitiva e o papel da função produção: uma análise em empresas do polo calçadista de Birigui

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Avaliação da vazão do microaspersor Amanco MF, antes e após o uso com água residuária

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Colina em rações para tilápia do Nilo: desempenho produtivo e respostas hematológicas antes e após o estímulo a frio

Pós-graduação em Zootecnia - FMVZ

Farelo de girassol em dietas para suínos com peso elevado de abate

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Métodos de muda forçada para codornas japonesas (Coturnix japonica)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Concentração nas olimpíadas colegiais do estado de São Paulo: estudo de caso sobre a reclusão esportiva à luz da psicologia do esporte

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Polpa cítrica e complexo enzimático para suínos nas fases de crescimento e terminação

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Concentrados de alta fibra em dietas para a terminação de novilhas Nelore

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)