Other than the vehicle license plate, the data sources differ in the type of variables collected and in the time span of data collection.
As for the degree distribution, while all analyzed datasets present similar general shapes, their range and their fine shape differ due to differences between the datasets, the construction scheme, the size, or the time span of the collection period.
Large hospital systems may potentially have tens of millions of patient records spanning decades of collection and a big data approach that is scalable is desirable.
An increase in minimum inhibitory concentrations (MIC) for several antibiotics, including ciprofloxacin, was found when analyzing results over the time span of specimen collections.
Discharge summaries span 6 years of collection.
In Experiment I, 15 lactating cows were used in a randomized block design to compare creatinine excretion obtained in different time-spans of urine collection (during 6, 9, 12, 15, 18, 21, and 24 h).
We recaptured and obtained data from thirteen animals from March to July 2009 and time spans of data collection varied between ten days and 100 days.
The datasets differ greatly in the market shares of the operators, in the time span of the data collection period, in the size of the network and in the geographical span of the considered country.
Data is detailed in the sense that is disaggregate at the level of individual vehicle-trips; is complete because some basic variables such as license plate, arrival time and dwell time are collected for the totality of the freight vehicles passing through the system, during the time span of the data collection.
A further research issue is that data analysis studies generally have a long time span between collection of data, analysis of results and dissemination of findings.
