The uncertainty and imprecision of ecotoxicological data are very high because of the use of various data sources, various investigation tests and the difficulty of comparing these data.
Specifically, first subsection describes the components needed to gather the relevant data from a person when she is performing everyday activity and how the inherent noise and imprecision of the data are removed.
Trapezoidal fuzzy numbers are adopted to handle inherent uncertainty and imprecision of the data involved in decision process.
However, to give spatial representation of text based documents is really a challenging task due to the spatial uncertainty of location and imprecision of historical data (Knowles 2008).
It remains a clinical judgement how much imprecision of measured data a clinician is willing to accept.
Furthermore, the records of RGTB327 and RGTB423 in NCBI were marked as 'removed' recently, indicating that the authors and/or the staff may realize the imprecision of the data.
Therefore, due to measurement imprecision and loss of data, our associations were measured more conservatively than by using ordinal variables, possibly leading to underestimation of the association and interaction measures.
On further examination, we discovered that the imprecision of the GIS data, such as the address codes and thus the distance to major roads, could be as large as 100 m, depending on the geocoding algorithm.
Indeed, although computational mathematical technologies grows so fast helping the engineers to estimate and mitigate the risk much uncertainties remains in a way of vagueness, which is many times impossible to measure precisely due to the imprecision and the lake of data.
