Classification Approaches in Neighborhood Research 2010 AAG ANNUAL MEETING April 14-18, 2010, Washington, DC Organizers: Brian Mikelbank (b.mikelbank@csuohio.edu) and Michael Reibel (mreibel@csupomona.edu) Co-Sponsors: Population, Urban, and Spatial Analysis and Modeling Specialty Groups The majority of theoretical questions in neighborhood research center on issues of classification. How to create categorical constructs that both aid in our understanding of neighborhood phenomena while preserving the detail necessary to learn from their complexity. Such constructs include temporally cross-sectional phenomena such as urban bli ght, ethnic or other subpopulation enclaves, territories of the underclass and local niches of particular economic activities as well as dynamic processes such as gentrification, abandonment, and group succession. In the simplest case the analyst identifies those neighborhoods that exceed thresholds of values in terms of a single characteristic thought to measure the construct. But because urban reality is messy, combinations of characteristics often define constructs and functional areas, so that the categorical or interval classification must occur in multivariate data space. Both the increased access to digital neighborhood data, and the increased complexity of urban processes and phenomena make the need for classification techniques more important than ever before. We welcome papers dealing with the theoretical, methodological, and/or empirical challenges of neighborhood classification research. These might include papers implementing some combination of cluster, threshold, factorial, or discriminant analyses, in static, temporal, and/or spatial contexts. The approach and topical areas of application are both open. Please send expressions of interest, questions and/or title and abstract of 250 words or less to Brian Mikelbank (b.mikelbank@csuohio.edu) and Michael Reibel (mreibel@csupomona.edu by October 14, 2009. Contributors will have to r egister for the conference and submit their abstract through the AAG website separately.