Results 21 to 30 of about 155,627 (235)

Robust Multi-Linear Fuzzy SVR Designed With the Aid of Fuzzy C-Means Clustering Based on Insensitive Data Information

open access: yesIEEE Access, 2020
Multiple SVR based on ensemble learning could be enhanced from the viewpoint of the performance, but the performance of modeling closely depends on the initial condition of the partitioning method and they are easily affected by noise and outliers.
Zheng Wang   +4 more
doaj   +1 more source

Time Series Cluster Kernel for Learning Similarities between Multivariate Time Series with Missing Data [PDF]

open access: yes, 2017
Similarity-based approaches represent a promising direction for time series analysis. However, many such methods rely on parameter tuning, and some have shortcomings if the time series are multivariate (MTS), due to dependencies between attributes, or ...
Bianchi, Filippo Maria   +3 more
core   +2 more sources

A Novel Density Peaks Clustering Algorithm with Isolation Kernel and K-Induction

open access: yesApplied Sciences, 2022
Density peaks clustering (DPC) algorithm can process data of any shape and is simple and intuitive. However, the distance between any two high-dimensional points tends to be consistent, which makes it difficult to distinguish the density peaks and easily
Shichen Zhang, Kai Li
doaj   +1 more source

Embed and Conquer: Scalable Embeddings for Kernel k-Means on MapReduce [PDF]

open access: yes, 2014
The kernel $k$-means is an effective method for data clustering which extends the commonly-used $k$-means algorithm to work on a similarity matrix over complex data structures.
Elgohary, Ahmed   +3 more
core   +1 more source

Multiple Kernel Fuzzy Clustering With Unsupervised Random Forests Kernel and Matrix-Induced Regularization

open access: yesIEEE Access, 2019
Although kernel fuzzy clustering can handle non-spherical clusters by mapping data to a more separable feature space, its performance is highly determined by the setting of kernels.
Yin-Ping Zhao   +3 more
doaj   +1 more source

Probabilistic Clustering of Time-Evolving Distance Data [PDF]

open access: yes, 2015
We present a novel probabilistic clustering model for objects that are represented via pairwise distances and observed at different time points. The proposed method utilizes the information given by adjacent time points to find the underlying cluster ...
AK Jain   +27 more
core   +1 more source

Obtaining Land Cover Type for Urban Storm Flood Model in UAV Images Using MRF and MKFCM Clustering Techniques

open access: yesISPRS International Journal of Geo-Information, 2019
With the accelerated urbanization process, cities are suffering from extremely heavy rain and urban storm water logging disasters in recent years. To provide reliable and effective information for urban management and emergency decision-making, the ...
Yanmei Wang   +4 more
doaj   +1 more source

Fast Low-rank Representation based Spatial Pyramid Matching for Image Classification [PDF]

open access: yes, 2015
Spatial Pyramid Matching (SPM) and its variants have achieved a lot of success in image classification. The main difference among them is their encoding schemes.
Peng, Xi   +4 more
core   +1 more source

Unsupervised Robust Multiple Kernel Learning via Extracting Local and Global Noises

open access: yesIEEE Access, 2019
Kernel-based clustering methods can capture the non-linear structure and identify arbitrarily shaped clusters, so they have been widely used in machine learning tasks.
Peng Zhou, Fan Ye, Liang Du
doaj   +1 more source

Twin Learning for Similarity and Clustering: A Unified Kernel Approach

open access: yes, 2017
Many similarity-based clustering methods work in two separate steps including similarity matrix computation and subsequent spectral clustering. However, similarity measurement is challenging because it is usually impacted by many factors, e.g., the ...
Cheng, Qiang, Kang, Zhao, Peng, Chong
core   +1 more source

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