Kappa Learning: A New Item-Similarity Method for Clustering Educational Items from Response Data.
Tanya NazaretskySara HershkovitzGiora AlexandronPublished in: EDM (2019)
Keyphrases
- synthetic data
- prior knowledge
- unsupervised learning
- similarity matrix
- clustering method
- data sets
- spectral clustering
- test data
- multidimensional scaling
- data analysis
- pairwise
- similarity measure
- noisy data
- statistical methods
- data points
- missing data
- bayesian methods
- similarity function
- learning algorithm
- training samples
- online learning
- training data
- categorical data
- large scale data sets
- learned models
- learning process
- similarity metric
- high dimensional data
- dissimilarity measure
- k means
- data objects
- input data
- distance metric
- learning design
- probabilistic model
- support vector machine
- cluster centers
- data mining techniques
- e learning
- similar objects
- clustering result
- hierarchical clustering algorithm
- dissimilarity matrix