3260 papers • 126 benchmarks • 313 datasets
Time Series Clustering is an unsupervised data mining technique for organizing data points into groups based on their similarity. The objective is to maximize data similarity within clusters and minimize it across clusters. Time-series clustering is often used as a subroutine of other more complex algorithms and is employed as a standard tool in data science for anomaly detection, character recognition, pattern discovery, visualization of time series. Source: Comprehensive Process Drift Detection with Visual Analytics
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This work quantitatively shows across a range of image and time-series datasets that the proposed method has competitive performance against the latest deep clustering algorithms, including outperforming current state-of-the-art on several.
This work presents a prediction model that can be used with different types of RNN models on subgroups of similar time series, which are identified by time series clustering techniques and consistently outperforms the baseline LSTM model and outperforms all other methods on the CIF2016 forecasting competition dataset.
This work presents a novel way to fit self-organizing maps with probabilistic cluster assignments, PSOM, a new deep architecture for Probabilistic clustering, DPSOM, and its extension to time series data, T-DPSOM, which achieve superior clustering performance compared to current deep clustering methods on static MNIST/Fashion-MNIST data as well as medical time series, while also inducing an interpretable representation.
This work proposes a deep learning–based method to address the problem of clustering multivariate short time series with many missing values, variational deep embedding with recurrence (VaDER), and uses it to successfully stratify patients with Alzheimer disease and patients with Parkinson disease into subgroups characterized by clinically divergent disease progression profiles.
A novel unsupervised temporal representation learning model, named Deep Temporal Clustering Representation (DTCR), is proposed, which integrates the temporal reconstruction and K-means objective into the seq2seq model, which leads to improved cluster structures and thus obtains cluster-specific temporal representations.
The proposed network-based approach for time series clustering using community detection in complex networks achieves better results than various classic or up-to-date clustering techniques under consideration and is robust enough to group time series presenting similar pattern but with time shifts and/or amplitude variations.
The sparse K-means algorithm is extended by incorporating structured sparsity, and the scattering transform is used, which corresponds to a convolutional network with filters given by a wavelet operator, and use the network's structure in sparse clustering.
The weighted cepstral distance is provided as an extension to invertible deterministic linear time invariant single input single output models, and it is shown that it can always be interpreted in terms of the poles and zeros of the underlying model.
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