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External Logistic Biplots for Mixed Types of Data

2020
A simultaneous representation of individuals and variables in a data matrix is called a biplot. When variables are binary, nominal, or ordinal, a classical linear biplot representation is not adequate. Recently, biplots for categorical data-based logistic response models have been proposed.
José L. Vicente-Villardón   +1 more
openaire   +1 more source

Unsupervised evolutionary clustering algorithm for mixed type data

IEEE Congress on Evolutionary Computation, 2010
In this paper, we propose a novel unsupervised evolutionary clustering algorithm for mixed type data, evolutionary k-prototype algorithm (EKP). As a partitional clustering algorithm, k-prototype (KP) algorithm is a well-known one for mixed type data. However, it is sensitive to initialization and converges to local optimum easily.
Zhi Zheng   +4 more
openaire   +1 more source

Distance function for mixed type data

2007
There are several strategies to cope with the simultaneous presence of different measurement scales. A reasonable option would be to compute the dissimilarity matrix for each type of variable: bynary, categorical, ordinal and metric. Then a compromise dissimilarity matrix can be achieved by using a convex combination of all the partial matrices ...
TARSITANO, Agostino, Bonafine I.
openaire   +1 more source

Clustering bivariate mixed-type data via the cluster-weighted model

Computational Statistics, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
PUNZO, ANTONIO, INGRASSIA, Salvatore
openaire   +3 more sources

K-Centers Algorithm for Clustering Mixed Type Data

2007
The K-modes and K-prototypes algorithms both apply the frequency-based update method for centroids, regarding attribute values with the highest frequency but neglecting other attribute values, which affects the accuracy of clustering results. To solve this problem, the K-centers clustering algorithm is proposed to handle mixed type data.
Wei-Dong Zhao   +2 more
openaire   +1 more source

k-SubMix: Common Subspace Clustering on Mixed-Type Data

2023
Klein, Mauritius   +2 more
openaire   +2 more sources

An overview of real‐world data sources for oncology and considerations for research

Ca-A Cancer Journal for Clinicians, 2022
Lynne Penberthy   +2 more
exaly  

Unsupervised Classification for Skewed and Mixed-Type Data

2023
Clustering, also known as unsupervised classification, is a foundational machine learning technique and is used to find underlying group structures in data. There are many well-established model-based techniques to analyze either categorical or continuous data in the clustering paradigm. However, there is a relative paucity of work for mixed-type data,
openaire   +1 more source

Innovations in research and clinical care using patient‐generated health data

Ca-A Cancer Journal for Clinicians, 2020
H S L Jim   +2 more
exaly  

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