In this paper we introduce and evaluate a method for eliciting a representative sample of total personal networks. First names were used as a cue to elicit a sample of 14 alters from 712 respondents through a telephone interview. Network characteristics for each respondent were calculated as averages and proportions across the 14 alters. These were compared to other studies using more specializ...

Sampling has been used in areas like selectivity estimation (Hou & Ozsoyoglu, 1991; Haas & Swami, 1992, Jermaine, 2003; Lipton, Naughton & Schnerder, 1990; Wu, Agrawal, & Abbadi, 2001), OLAP (Acharya, Gibbons, & Poosala, 2000), clustering (Agrawal, Gehrke, Gunopulos, & Raghavan, 1998; Palmer & Faloutsos, 2000), and spatial data mining (Xu, Ester, Kriegel, & Sander, 1998). Due to its importance,...

The recent development of retrieval techniques and advances in 3D shape representation has induced a large amount of research. This paper presents a methodology with three options to retrieve shapes in 3D data bases, based on mapping shapes in 1D using representative sequences, which are matched using Fast Dynamic Time Warping distance. The three options are compared through a performance measu...

obtaining samples that represent original fluid of reservoirs optimizes reservoirs management. the optimized management increases recovery. also, selecting and performing proper improved oil recovery (ior) or enhance oil recovery (eor) programs depend on collecting representative samples. achieving accurate compositions of original in-situ fluid prevents overdesigning surface facilities. repres...

Abstract. We address, in this chapter, the identification of typical patterns that best characterize a set of sequences. More specifically, we focus on data-driven methods that search for the typical patterns among the observed sequences. In life course studies, such typical sequences serve, for instance, to describe ideal-type life trajectories; i.e., the common way(s) of organizing our life. ...

This paper is concerned with the summarization of a set of categorical sequence data. More specifically, the problem studied is the determination of the smallest possible number of representative sequences that ensure a given coverage of the whole set, i.e. that have together a given percentage of sequences in their neighborhood. The goal is to yield a representative set that exhibits the key f...