2009 Annual Meeting - The Classification Society
This collection contains papers and presentations presented at the 2009 annual meeting of the Classification Society.
(2009-06)Agent Based Models (ABMs) have become extremely popular tools for simulating certain kinds of complex phenomena. They have strong advantages in terms of both programming and validation. However, the statistical properties ...
Ultrametric Wavelet Regression of Multivariate Time Series: Application to Colombian Conflict Analysis (2009-06)We first pursue the study of how hierarchy provides a well-adapted tool for the analysis of change. Then, using a time sequence-constrained hierarchical clustering, we develop the practical aspects of a new approach to ...
application/vnd.ms-powerpointMicrosoft PowerPoint (366kB)
Simultaneous Estimation of Multinomial Logistic Regression Models: Factor Analysis of Polytomous Item Response Data with Covariates (2009-06)The approach described in this talk starts with Bock's (1972) nominal response model (NRM). The NRM is a multinomial logistic regression model for responses to items where the ordering of response options is not known a ...
(2009-06)Text Mining has become a specialized offshoot of Data Mining, Information Retrieval, and Natural Language Processing. One of the major tools of this area is the vector space representation of documents. On the other hand, ...
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