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We investigate the complex relationships between countries in the Eurovision Song Contest, by recasting past voting data from 1992–2003 in terms of a dynamical network. Our analysis shows that the UK is remarkably compatible, or ‘in tune’, with other European countries during the period of...
Persistent link: https://www.econbiz.de/10010591642
We first applied cluster analysis on selected stock market indexes (NASDAQ, DAX, Nikkei 225, FTSE 100, and Dow-Jones) for identifying four global fundamental patterns of stock markets behavior (to be named “market conditions”). On each of these patterns (attesting similar market conditions)...
Persistent link: https://www.econbiz.de/10011039292
Persistent link: https://www.econbiz.de/10010200186
Due to the change in attitudes and lifestyles, people expect to find new partners and friends via various ways now-a-days. Online dating networks create a network for people to meet each other and allow making contact with different objectives of developing a personal, romantic or sexual...
Persistent link: https://www.econbiz.de/10009438155
structure makes such demand outliers hard to detect. We propose a two-step approach combining clustering with functional outlier …
Persistent link: https://www.econbiz.de/10015205205
and a developed branch-and-bound procedure. Moreover, a clustering-based algorithm has been presented that can provide a …
Persistent link: https://www.econbiz.de/10013470801
six classes using a hierarchical clustering algorithm based on five selected spatial characteristics. The six categories …
Persistent link: https://www.econbiz.de/10014285575
multiple operations, we employ a clustering approach on 69 firm characteristics and allocate companies to novel economic … to quantify feature importance for clustering methods, finding that size drives differences across classical industries … while book-to-market and financial liquidity variables matter for clustering-based sectors. …
Persistent link: https://www.econbiz.de/10014321226
various non-parametric clustering models to detect outliers, and assesses their effectiveness using different quality criDer … Clustering-Modelle, um auffällige Werte aufzudecken und nach verschiedenen Gütekriterien deren Wirkung zu bewerten. Als geeignet … various non-parametric clustering models to detect outliers, and assesses their effectiveness using different quality criteria …
Persistent link: https://www.econbiz.de/10014485136
states, each describing different dynamics of the price process. In order to include external factors we propose a two …-step hybrid model based on machine learning methods for clustering and classification. First, we assign price states to historical … prices using K-means clustering. These price states are also assigned to the corresponding data of external factors. Second …
Persistent link: https://www.econbiz.de/10014497500