Clustering
In broad terms, clustering, or cluster analysis, refers to the process of organizing objects into groups whose members are similar with respect to a similarity or distance criterion. As such, a cluster is a collection of similar objects that are distant from the objects of other clusters. Unlike most classification techniques that aim to assign new observations to one of the many existing groups, clustering is an exploratory procedure that attempts to group objects based on their similarities or distances without relying on any assumptions regarding the number of groups.
Applications of clustering are many; consequently, different techniques have been developed to address the varying analytical objectives. There are applications (such as market research) in which clustering can be used to group objects (customers) based on ...
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Reader's Guide
Ethical Issues In Survey Research
Measurement - Interviewer
Measurement - Mode
Measurement - Questionnaire
Measurement - Respondent
Measurement - Miscellaneous
Nonresponse - Item-Level
Nonresponse - Outcome Codes And Rates
Nonresponse - Unit-Level
Operations - General
Operations - In-Person Surveys
Operations - Interviewer-Administered Surveys
Operations - Mall Surveys
Operations - Telephone Surveys
Political And Election Polling
Public Opinion
Sampling, Coverage, And Weighting
Survey Industry
Survey Statistics
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