A significant barrier to the portability of queries across diverse physical implementations of large data stores, especially NoSQL data stores, is that the queries reference the physical storage attributes, such as the table and column names. In this paper, we describe a technique for embedding ontological expressions called Address Expressions, or A-Expressions, in NoSQL queries to improve the...

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For several decades, relational databases have represented the indisputable reference solution for transactional data management. Over the last years, however, we have witnessed the proliferation of a new generation of in-memory, transactional data platforms, often referred to as NoSQL data grids. By relying on a simpler data model (key/value vs relational), lightweight application interfaces (...

Process-Aware Information System (PAIS) are IT systems that manages, supports business processes and generate large event logs from execution of business processes. An event log is represented as a tuple of the form CaseID, TimeStamp, Activity and Actor. Process Mining is an emerging area of research that deals with the study and analysis of business processes based on event logs. Process Minin...