Search results | Digital Grinnell

Title: "Were You There" - Roland Hayes (1940), essay
Description: Essay about tenor Roland Hayes (188701977) and the negro spiritual "Were You There" published in 1940 on Columbia Masterworks.
PID: grinnell:19506

Title: A Discriminative Semi-Markov Model for Robust Scene Text Recognition
Description: We present a semi-Markov model for recognizing scene text that integrates character and word segmentation with recognition. Using wavelet features, it requires only approximate location of the text baseline and font size; no binarization or prior word segmentation is necessary. Our system is aided by a lexicon, yet it also allows non-lexicon words. To facilitate inference with a large lexicon, we use an approximate Viterbi beam search. Our system performs robustly on low-resolution images of signs containing text in fonts atypical of documents.
PID: grinnell:6266

Title: A Role for Ecology in the Evolution of Colour Variation and Sexual Dimorphism in Hawaiian Damselfiles
Description: The hypothesis that ecological differences play a role in the evolution of body colour variation within and between sexes in a radiation of endemic Hawaiian damselﬂies is tested.
PID: grinnell:23042

Title: A Simple Experiment for Discussion of Quantum Interference and Which-Way Measurement
Description: Motivated by a recent experiment involving which-way measurement in atom interference, we developed a completely analogous experiment using visible light. This simple experiment, easily accessible to undergraduate students and the resources of undergraduate departments, facilitates examination of the key elements of which-way measurement, quantum erasure and related mysteries of quantum measurement. The experiment utilizes a Mach-Zehnder interferometer, and visually demonstrates the loss of interference fringes when a which-way measurement is imposed, and the restoration of that pattern when the which-way information is destroyed. This device is also sensitive enough to observe interference fringes arising from single photons. At a level accessible to undergraduates, we present simple analyses of the interference appropriate for the coherent classical field limit, and the single photon limit. We briefly mention related issues of the nature of the photon, pointing to some useful references.
PID: grinnell:47

Title: A Two-Sector Effort-Regulation Model with Implications for Wage Developments of the 1980s
Description: A simple two-sector effort-regulation model, which assumes that the cost of job loss responds to labor's bargaining power and which acknowledges influences of institutional change, import penetration and shifting employment, can account for the declining real wages for non-supervisory workers in goods sector industries in the 1980s.
PID: grinnell:11678

Title: ACM Works of Dr. Henry M. Walker
Description: This image is a screen capture (taken February 4, 2015) of a web page listing several ACM (Association for Computing Machinery) copyrighted publications of Dr. Henry M. Walker, Grinnell College. Associated metadata includes the text of all pertinent links presented in Dr. Walker's page.
PID: grinnell:10010

Title: Academic Resource Centers: an Umbrella or an ARC? Working together strategically across administrative areas
Description: The Academic Resource Centers (ARC) is an evolving network of professionals from various offices and departments across the Grinnell College campus. As an informal affinity group, the ARC does not exist on the college’s organizational chart, nor does it have a budget. Members of ARC fluidly collaborate to support faculty and student fluency with cross-disciplinary skills that support teaching and learning in the liberal arts.
PID: grinnell:3424

Title: Alternative Introductions to Applied Statistics for Mathematics Students
Description: At many colleges a typical mathematics student's introduction to the field of statistics consists of the standard two semester sequence in Probability and Statistics. Indeed, at many smaller colleges, there are the only courses in statistics available for credit towards a math major. A group of statistics educators, with support from the Sloan Foundation's New Liberal Arts Program, has been investigating alternatives to this approach. Our goal is to capture the interest of mathematically talented students and encourage them to pursue further work in statistics. We believe that this goal can be addressed by developing an applied statistics course which exposes students more quickly to the joys of data analysis, emphasizes the applications of statistics, and utilizes their ability/interest in mathematics. The need for such an alternative course, potential pitfalls in its development, and several specific models for its implementation will be discussed.
PID: grinnell:26691

Title: Applied Introductory Statistics Courses for Mathematics Majors at Liberal Arts Colleges
Description: The need for an applied introductory statistics course for mathematics majors at liberal arts colleges id discussed. General characteristics for such a course are given and specific examples are described in the papers that follow.
PID: grinnell:26685