Amal Oudni

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Gradual itemsets of the form “the more/less A, the more/less B” summarize data through the description of their internal tendencies, identified as correlation between attribute values. This paper proposes to enrich such gradual itemsets by taking into account an acceleration effect, leading to a new type of gradual itemset of the form “the more/less A(More)
The cross-listing mechanism enables that companies collect funds and investors invest in capital markets of foreign countries. Among the objectives are the increase in the liquidity, the reduction of the risk and of the capital cost. In this context, this paper analyses the relationship of dually listed stocks of Brazilian companies, simultaneously traded(More)
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