Event Clustering and Classification from Social Media: Watershed-based and Kernel Methods.
Truc-Vien NguyenMinh-Son DaoRiccardo MattiviEmanuele SansoneFrancesco G. B. De NataleGiulia BoatoPublished in: MediaEval (2013)
Keyphrases
- kernel methods
- support vector
- support vector machine
- social media
- feature space
- similarity function
- machine learning
- kernel function
- kernel learning
- unsupervised learning
- kernel based clustering
- multiple kernel learning
- learning problems
- svm classifier
- high dimensional feature space
- kernel matrix
- reproducing kernel hilbert space
- clustering method
- classification method
- kernel parameters
- support vector machine svm
- classification accuracy
- image segmentation
- k means
- clustering algorithm
- feature extraction
- text classification
- kernel fisher discriminant analysis
- kernel matrices
- multiple kernel
- tree kernels
- generalization ability
- decision trees
- classification process
- data clustering
- feature vectors
- data points
- dimensionality reduction
- preprocessing
- similarity measure
- spectral clustering
- training set
- active learning
- svm training
- image processing
- data sets
- supervised learning
- neural network