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From the bargaining perspective, the items of transaction are analogous to the strategy choices, and the utility gain of a typical transaction is analogous to the payoff of executing a particular strategy.
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The description describes the item and type of transaction.
The fingerprinting protocol in [10] introduced a trusted authority who generates a robust fingerprint when valid items of a certain transaction between a buyer and a seller are transmitted from the seller.
Online stores powered by BigCommerce have sold over 30 million total items to over 230 million unique visitors, with the average number of items per transaction at 7.6 products.
To protect third parties in these situations, many legal systems provide for the registration or recordation of transactions, particularly transactions involving items of great value (such as airplanes or boats or cars) or items of great durability (such as land).
Fig. 2 Abort rate versus number of clients (left) and number of items in a transaction (right) in the absence of byzantine clients.
The support of an itemset is then computed by simply storing for each item the ids of transactions it is contained in, counting the size of the intersection of these sets for each item in the itemset.
The former finds sequential patterns without considering the relationships between transactions in databases, while the latter finds inter-transaction patterns without considering the ordered relationships of items within each transaction.
However, the reduction provided by this exact method is not sufficient to solve the pattern explosion problem, mainly because of high dimensional datasets which have large number of items in each transaction.
In the past, many algorithms have been proposed to mine frequent itemsets from transactional databases, in which the presence or absence of items in transactions was certainly known.
It finds out high utility itemsets by considering both the profits and quantities of items in transactions.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com