For example, in the existent PSM techniques, matching is done primarily based on the distance between point estimates of propensity scores, and thus, it is difficult to establish a meaningful criterion to evaluate the closeness of the matched units without knowing the estimation errors (or standard errors) of the estimated propensity scores.
This paper studies upper bounds on the position error for a single estimate of an unknown target node position based on distance estimates in wireless sensor networks.
The third paper 'Upper bounds on position error of a single location estimate in wireless sensor networks,' authored by Gholami, Ström, Wymeersch, and Gezici, studies upper bounds on the position error for a single estimate of an unknown target node position based on distance estimates in a wireless sensor network.
Phylogenetic trees were constructed by neighbour-joining [50] based on distance estimates calculated by the Kimura-2 algorithm [51].
Technically, this schedule does not utilize the estimated distance information based on signal strength.
The application of excess-risk estimates based on distance from the plants has been problematic because of several difficulties in interpreting epidemiological studies.
Our results show that functions that estimate LD based on distance only or on the difference in MAF between the imputed SNP and the closest SNP on the lower density marker panel did not provide a good indication of imputation reliability.
Furthermore, a refined exposure assessment accounted for multiple facilities and their respective annual quantities of chemical releases, an improvement from previous studies that estimated exposure based on distance to the nearest industrial facility.
The sensor estimates its location based on distance measurements to all its neighboring locators, and determines whether the mean square error based on the estimation result is lower than the threshold.
