Though in most data warehousing applications no relevance is given to the time when events are recorded, some domains call for a different behavior. In particular, whenever late registrations of events take place, and particularly when the events registered are subject to further updates, the traditional design solutions fail in preserving accountability and query consistency. In this paper we ...

Though in most data warehousing applications no relevance is given to the time when events are recorded, some domains call for a different behavior. In particular, whenever late measurements of events take place, and particularly when the events registered are subject to further updates, the traditional design solutions fail in preserving accountability and query consistency. In this article, w...

Osteopathic medicine represents a valid tradition in Western medicine, but there are concerns about whether it is a viable tradition: will it end up a "poorer cousin" of the allopathic tradition or will it eventually simply be absorbed by the dominant model? This is particularly the case in psychiatry, where osteopathic medicine has never established a firm presence. Currently, the dominant eth...

In this paper we propose an indexing structure for bitemporal databases. Such structure is based on two trees, one indexing valid time and another indexing transaction time. The trees share pointers to the actual data records, which are thus not duplicated. Bitemporal queries are processed by dividing the query in two parts, a valid time part and a transaction time part. Each tree is searched a...

Is there a universal dimension of “Meditation Depth” valid to every individual and way of meditation? Or is there only a very subjective feeling of depth, that differs from person to person and from tradition to tradition? 45 authorized meditation teachers were asked about the depth of different experiences verbalized in 30 items. The agreement is highly significant. Five clusters, interpreted ...

one of the most controversial problems in western epistemology is the division of propositions into analytic and synthetic. this division drew the attention of many proponents and opponents and faced many objections. one the most important objections which if valid enough, can destroy the basis of this division and resulting epistemological consequences is the of relativity of both analytic as ...

We present a new approach to implement an object bitempo-ral database where both valid-time and transaction-time are represented. It is based on the DataBase Version model, which allows an eecient management of object versions. This facilitates the manipulation of past events and allows a straightforward representation of branching evolution in valid-time.

A temporal database schema models objects or concepts with time-related or time-variant properties and a derived database contains measurements or descriptions concerning these temporal properties. The modelling of temporal information in a temporal database has an impact on the consistency of the database. Of course, this temporal information can be queried. In some cases, information in the q...

In data warehouses measures are analyzed along different dimensions. Although the structures of these dimensions change over time, data warehouse tools currently in use are not able to deal with these modifications in a sophisticated way. In this paper we present a bitemporal extension of the COMET metamodel. This extension enables us to represent not only the valid time of structural modificat...