Constraints on the data handling, data movement and on scheduling locations should be seen.
Placing flux as well as mass constraints on the data assimilation framework encourages physically consistent state estimation and results in more accurate and reliable forward predictions of streamflow for robust decision-making.
Various types of constraints can be used in mining, such as knowledge type constraints, data constraints, dimension constraints, interestingness constraints, rule constraints, etc. Providing a means to apply certain constraints on the data allows users to be specific in their search, so that only those datasets satisfying the constraints are looked for in the database.
We use XML to describe the resources and formulate the various requests (e.g. discover and negotiation requests), and XSD (XML-Schema Definitions) to define the structure of the data models and specify constraints on the data contained in the XML documents.
It is not at all surprising that there might be constraints on the data which can be put on a locally space-like surface which passes through the time travel region: after all, we never think we can freely specify what happens on a space-like surface and on another such surface to its future, but in this case the surface at issue lies to its own future.
The retrospective design placed constraints on the data that could be abstracted, thus introducing possible reporting bias.
The fourth scale (ATT) showed an unacceptable model fit even without constraints on the data and revision of this scale is recommended.
Semi-structured documents, however, have only loose constraints on the data structure (20), which cannot be handled efficiently by relational databases (21).
It is also important to note that unidimensionality is a necessary, but not sufficient, condition for satisfying Rasch model expectations, as the model imposes extra constraints on the data to satisfy the rules for constructing interval scale data [ 46].
Third, the time constraints on the data collection period imposed limits on the sample size as participants had to be available for a face-to-face interview during a set period of time.
