PAUL ALAN FLYER. Finite Population Correction for Replication Estimates of Variance. (Under the direction of CHIRAYATH M. SUCHINDRAN and LESTER R. CURTIN.) For large, national surveys, stratified two stage sample designs are frequently used. In these surveys, unequal probability sampling is almost always used in the selection of first stage units. Typically, the sampling procedure does not allo...

Topic modeling of streaming sensor data can be used for high level perception of the environment by a mobile robot. In this paper we compare various Gibbs sampling strategies for topic modeling of streaming spatiotemporal data, such as video captured by a mobile robot. Compared to previous work on online topic modeling, such as o-LDA and incremental LDA, we show that the proposed technique resu...

The relationships of ranges to their respective standard deviations for wind direction and speed fluctuations are found for two urban locations at a height of 33 f t . above ground level. The standard deviations are computed from 1-, 5-, lo-, and 15-sec. average and 5-, lo-, and 15-sec. iiistantaiieous chart readings. The sampling intervals for which the standard deviations and ranges are compu...

Probability proportional to size (PPS) sampling finds application in business surveys both for the first stage of a multi-stage design, and for direct sampling of businesses from a list frame. In both cases there is a need to update samples from time to time, while retaining as many units as possible from the old sample. In the second type of application there is also a need for negative coordi...

We focus on developing a simple and efficient unified level-of-detail structure for networked urban model viewers. At the core of our approach is a revisitation of the BlockMap [CBG∗07] data structure, originally introduced for encoding coarse representations of blocks of buildings to be used as direction-independent impostors when rendering far-away city blocks. The contribution of this paper ...

Using data from the National Study of Postsecondary Faculty and the Early Childhood Longitudinal Study—Kindergarten Class of 1998–99, the author provides guidelines for incorporating weights and design effects in single-level analysis using Windows-based SPSS and AM software. Examples of analyses that do and do not employ weights and design effects are also provided to illuminate the differenti...

Due to its high activities in groundwater, the radionuclide 222Rn is a sensitive natural tracer to detect and quantify groundwater inflow into lakes, provided the comparatively low activities in the lakes can be measured accurately. Here we present a simple method for radon measurements in the low-level range down to 3 Bq m−3, appropriate for groundwater-influenced lakes, together with a concep...

This paper concerns context and feature-sensitive re-sampling of workspace surfaces represented by 3D point clouds. We interpret a point cloud as the outcome of repetitive and non-uniform sampling of the surfaces in the workspace. The nature of this sampling may not be ideal for all applications, representations and downstream processing. For example it might be preferable to have a high point ...

The main objective of this study is to come to know the fact that which level of the three levels of managers (Top, Middle and Low Level) has more participation in applying e-commerce in the organization. Another purpose of the study is to know that how many people are employed as IT personal in the Indian small and medium enterprises? In this study we used Stratified Random Sampling to collect...