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Working paper
The Importance of Generative Models for Assessing Network Structure
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Working paper
Text Preprocessing For Unsupervised Learning: Why It Matters, When It Misleads, And What To Do About It
In: Political analysis: PA ; the official journal of the Society for Political Methodology and the Political Methodology Section of the American Political Science Association, Band 26, Heft 2, S. 168-189
ISSN: 1476-4989
Despite the popularity of unsupervised techniques for political science text-as-data research, the importance and implications of preprocessing decisions in this domain have received scant systematic attention. Yet, as we show, such decisions have profound effects on the results of real models for real data. We argue that substantive theory is typically too vague to be of use for feature selection, and that the supervised literature is not necessarily a helpful source of advice. To aid researchers working in unsupervised settings, we introduce a statistical procedure and software that examines the sensitivity of findings under alternate preprocessing regimes. This approach complements a researcher's substantive understanding of a problem by providing a characterization of the variability changes in preprocessing choices may induce when analyzing a particular dataset. In making scholars aware of the degree to which their results are likely to be sensitive to their preprocessing decisions, it aids replication efforts.
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Working paper
More Effective Than We Thought: Accounting for Legislative Hitchhikers Reveals a More Inclusive and Productive Lawmaking Process
In: American journal of political science, Band 64, Heft 1, S. 5-18
ISSN: 1540-5907
AbstractFor more than half a century, scholars have been studying legislative effectiveness using a single metric—whether the bills a member sponsors progress through the legislative process. We investigate a less orthodox form of effectiveness—bill proposals that become law as provisions of other bills. Counting these "hitchhiker" bills as additional cases of bill sponsorship success reveals a more productive, less hierarchical, and less partisan lawmaking process. We argue that agenda and procedural constraints are central to understanding why lawmakers pursue hitchhiker strategies. We also investigate the legislative vehicles that attract hitchhikers and find, among other things, that more Senate bills are enacted as hitchhikers on House laws than become law on their own.
Transparency by Conformity: A Field Experiment Evaluating Openness in Local Governments
In: Public administration review: PAR, Band 77, Heft 1, S. 68-77
ISSN: 1540-6210
AbstractSunshine laws establishing government transparency are ubiquitous in the United States; however, the intended degree of openness is often unclear or unrealized. Although researchers have identified characteristics of government organizations or officials that affect the fulfillment of public records requests, they have not considered the influence that government organizations have on one another. This picture of independently acting organizations does not accord with the literature on diffusion in public policy and administration. This article presents a field experiment testing whether a county government's fulfillment of a public records request is influenced by the knowledge that its peers have already complied. The authors propose that knowledge of peer compliance should induce competitive pressures to comply and resolve legal ambiguity in favor of compliance. Findings indicate peer conformity affects both in the time to initial response and in the rate of complete request fulfillment.
Transparency by Conformity: A Field Experiment Evaluating Openness in Local Governments
In: Public administration review: PAR, Band 77, Heft 1, S. 68
ISSN: 0033-3352
Transparency by Conformity: A Field Experiment Evaluating Openness in Local Governments
In: Public administration review: PAR
ISSN: 0033-3352
Transparency by Conformity: A Field Experiment Evaluating Openness in Local Governments
In: Public Administration Review, Forthcoming
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Stochastic Weighted Graphs: Flexible Model Specification and Simulation
In: Political Networks Workshops & Conference 2016
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Working paper
Stochastic weighted graphs: Flexible model specification and simulation
In: Social networks: an international journal of structural analysis, Band 49, S. 37-47
ISSN: 0378-8733