Results 21 to 30 of about 180,123 (260)

Topological analysis of scalar fields with outliers

CoRR, 2014
Given a real-valued function $f$ defined over a manifold $M$ embedded in $\mathbb{R}^d$, we are interested in recovering structural information about $f$ from the sole information of its values on a finite sample $P$. Existing methods provide approximation to the persistence diagram of $f$ when geometric noise and functional noise are bounded. However,
Mickaël Buchet, Frédéric Chazal, Tamal K. Dey, Fengtao Fan, Steve Y. Oudot, Yusu Wang 0001   +5 more
openaire   +5 more sources

Hybrid Detection of Anomalies in Financial Transactions: A Rule-Based and Machine Learning Approach [PDF]

Annals of Dunarea de Jos University. Fascicle I : Economics and Applied Informatics
This paper presents a hybrid methodology for detecting anomalies in financial transactions including card-initiated transactions and payments by combining rule-based logic with unsupervised machine learning techniques.
Alexandra Stavrositu (Caratas), Cristina Barbu (Antohi), Mihaela-Carmen Muntean, Dragos Sebastian Cristea, Daniela Ancuta Sarpe   +4 more
doaj   +1 more source

An integrated approach for identifying wrongly labelled samples when performing classification in microarray data. [PDF]

PLoS ONE, 2012
Using hybrid approach for gene selection and classification is common as results obtained are generally better than performing the two tasks independently.
Yuk Yee Leung, Chun Qi Chang, Yeung Sam Hung   +2 more
doaj   +1 more source

Outlier(s) nos cálculos bibliométricos: primeiras aproximações │ Outlier(s) in bibliometric calculations: preliminary approach

Liinc em Revista, 2013
Resumo Este artigo objetiva ilustrar a análise de outlier(s) aplicada aos cálculos bibliométricos. O Outlier é uma observação, elevada ou reduzida, em relação ao conjunto de dados. São três as causas possíveis para ocorrência de outlier: registro errado,
Luís Fernando Maia Lima, Alexandre Masson Maroldi, Dávilla Vieira Odízio da Silva   +2 more
doaj   +1 more source

Phase Angle as an Early Functional Biomarker of Cancer‐Related Fatigue in Pediatric Oncology: A Prospective Longitudinal Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric cancer remains a leading cause of morbidity and mortality worldwide, particularly in low‐and middle‐income countries. Cancer treatment may impair nutritional status, alter body composition, and exacerbate cancer‐related fatigue (CRF).
Luís Carlos Lopes‐Junior, Luiz Claudio Barreto Silva Neto, Fabiano Kenji Haraguchi, Letícia Batista de Azevedo, Marcelo Brenner Nascimento Carlini, Raphael Manhães Pessanha, Mariana Rabello Laignier, Wesley Rocha Grippa, Tania Mara Lopes Bitti Bortolini, Gláucia Zouain‐Figueiredo, Regina Aparecida Garcia de Lima, Liliana Vasquez   +11 more
wiley   +1 more source

Detecting Outlier Microarray Arrays by Correlation and Percentage of Outliers Spots

Cancer Informatics, 2006
We developed a quality assurance (QA) tool, namely microarray outlier filter (MOF), and have applied it to our microarray datasets for the identification of problematic arrays.
Song Yang, Xiang Guo, Yaw-Ching Yang, Denise Papcunik, Caroline Heckman, Jeffrey Hooke, Craig D. Shriver, Michael N. Liebman, Hai Hu   +8 more
doaj   +2 more sources

Early identification of scientific breakthroughs through outlier analysis based on research entities

Journal of Data and Information Science
To address the “anomalies” that occur when scientific breakthroughs emerge, this study focuses on identifying early signs and nascent stages of breakthrough innovations from the perspective of outliers, aiming to achieve early identification of ...
Zhao Yang, Zhang Mengting, Chen Xiaoli, Zhang Zhixiong   +3 more
doaj   +1 more source

Outlier Analysis of Categorical Data using NAVF [PDF]

Informatică economică, 2013
Outlier mining is an important task to discover the data records which have an exceptional behavior comparing with other records in the remaining dataset. Outliers do not follow with other data objects in the dataset.
D. LAKSHMI SREENIVASA REDDY, B. RAVEENDRA BABU, A. GOVARDHAN   +2 more
doaj   +1 more source

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

FEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang, Hyo Been Jin, Chang Min Kim, So Yeon Lee, Hyun Ho Park   +4 more
wiley   +1 more source

An Incremental Local Outlier Detection Method in the Data Stream

Applied Sciences, 2018
Outlier detection has attracted a wide range of attention for its broad applications, such as fault diagnosis and intrusion detection, among which the outlier analysis in data streams with high uncertainty and infinity is more challenging.
Haiqing Yao, Xiuwen Fu, Yongsheng Yang, Octavian Postolache   +3 more
doaj   +1 more source