, options with strikes ending on 50 are less traded than options with strikes ending on 00. Clustering is higher when options … clustering, grid size, and the options' characteristics. To our knowledge this paper is the first to explore how the grid size of …

Price clustering is a well-documented regularity of foreign exchange transactions. In this Paper, I present new … empirical evidence of price clustering for central bank interventions. A feature of the price clustering in Swiss National Bank … (SNB) transactions is market dependency. Evidence of clustering in the broker market is considerably smaller than in the …

clustering technique in order to analyse the database of accidents and predict the process risk. The case-based reasoning is used … clustering approach ensures effective risk managing in shipbuilding process designing. Results show that by selection of adequate … consideration of fuzzy clustering method is desirable in the future. The analysis in the case study is simplified. The use of the …

negative polarity across the different algorithms. Clustering results show that both K-Means and spherical K-Means algorithms …