Index Catalog // ScholarsArchive@OSU

Biology of neustonic larval and juvenile fishes and crabs off Oregon, 1984

Creator:: Shenker, Jonathan M.
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Jonathan M, Shenker for the degree

A collaborative filtering algorithm and evaluation metric that accurately model the user experience

Creator:: McLaughlin, Matthew
Abstract:: "Collaborative filtering algorithms’ performances have been evaluated using a variety of metrics. These metrics, such as Mean Absolute Error and Precision, have often ignored recommendations for which they do not have data. Ignoring these recommendations has provided numbers which do not accurately represent the user experience. Qualitatively we have seen...
Resource Type:: Capstone Project
Full Text:: % 30 % 50 % 70 % 90 % Recall M o d if ie d P re c is io n User-to-User Item-Item

Contributions to Collaborative Filtering Research

Creator:: Nong, Shuzhen
Abstract:: In this report, I first introduce three areas of interest to collaborative filtering researchers, namely: (a) how to solve the sparsity and scalability problems in recommendation systems; (b) how to rapidly develop and test collaborative filtering algorithms; and (c) how to apply collaborative filtering to unbounded numeric preference data. In...
Resource Type:: Capstone Project
Full Text:: 0.8000 0.8500 0.9000 0.9500 0 2 4 6 8 10 Training size M A E s Simple Pearson Simple SVD SVD

Preserving the Planar Dynamics of a CompliantBipedal Robot with a Yaw-Stabilizing Foot Design

Creator:: Abate, Andrew M.
Abstract:: The ATRIAS agile humanoid robot, along with a number of other spring-mass walking machines, currently have two instabilities: one resulting from inertial forces on the torso which cause the robot to spin like a top, and another resulting from stiff ground collisions which cause chattering of the point-contact toes. This...
Resource Type:: Honors College Thesis
Full Text:: project of Andrew M. Abate presented on May 28, 2014. APPROVED: Jonathan Hurst, Mentor, representing

From running birds to walking robots : optimization as a unifying framework for dynamic bipedal locomotion

Creator:: Hubicki, Christian M.
Abstract:: Bipedal locomotion is a complex phenomenon to understand and control, making it difficult for legged robots to achieve the speed, agility, efficiency, and robustness of their animal counterparts. This thesis argues for the use of numerical optimization to investigate and implement bipedal control as it applies to biology, dynamical models,...
Resource Type:: Dissertation
Full Text:: . Christian M. Hubicki, Author ACKNOWLEDGEMENTS To my faculty mentors. Jonathan: Thank you for being such

Photoperiod and the timing of pupping in the Pacific harbor seal (Phoca vitulina richardsi) with notes on reproduction in northern fur seals and Dall porpoises

Creator:: Temte, Jonathan L.
Abstract:: Birth and pupping season records of Pacific harbor seals (Phoca vitulina richardsi) were used in an analysis of photoperiod effect on the timing of birth in this species. Dates and latitudes of births were converted into photoperiods using a photoperiod equation. Sequential dates from parturition were converted into photoperiods and...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Jonathan L. Temte for the degree

The Design Freedoms of a Novel Cable-Driven Manipulator

Creator:: Layng, Brian M.
Abstract:: Legged locomotion in robotics benefits from engineered hardware dynamics such as configuration-dependent, nonlinear transmissions and compliance. This thesis introduces a novel cable driven leg that allows the design of configuration-dependent transmission ratios while also permitting the addition of compliance in line with the cables to achieve compliant legged locomotion. The...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Brian M. Layng for the degree

Uranium and technetium bio-immobilization in intermediate-scale permeable reactive scale barriers

Creator:: Sapp, Mandy M.
Abstract:: Groundwater at Oak Ridge National Laboratory's Field Research Center (FRC) is contaminated with U(VI) and Tc(VII), has pH values as low as 3.3, and nitrate concentrations as high as 120 mM. The objective of this research was to determine if in-situ bio-immobilization is a viable treatment alternative for this water....
Resource Type:: Masters Thesis
Full Text:: -immobilization in Intermediate-Scale Permeable Reactive Barriers Abstract approved: Jonathan D. Istok

Uranium and technetium bio-immobilization in intermediate-scale physical models of an in situ bio-barrier

Creator:: Michalsen, Mandy M.
Abstract:: Metal and hydrogen ion acidity and extreme nitrate concentrations typical of Department of Energy (DOE) legacy waste sites pose formidable challenges to successful implementation of in situ bio-immobilization. Intermediate-scale (~ 2.5 m), flow through models of an in situ bio-barrier were constructed to investigate U and Tc removal from groundwater...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Mandy M. Michalsen for the degree of Doctor of Philosophy in Civil

Tide-topography coupling on a continental slope

Creator:: Kelly, Samuel M.
Abstract:: Tide-topography coupling is important for understanding surface-tide energy loss, the intermittency of internal tides, and the cascade of internal-tide energy from large to small scales. Although tide-topography coupling has been observed and modeled for 50 years, the identification of surface and internal tides over arbitrary topography has not been standardized....
Resource Type:: Dissertation
Full Text:: TOPOGRAPHY Samuel M. Kelly, Jonathan D. Nash, and Eric Kunze Journal of Geophysical Research, Oceans 2000

ScholarsArchive@OSU

Biology of neustonic larval and juvenile fishes and crabs off Oregon, 1984

A collaborative filtering algorithm and evaluation metric that accurately model the user experience

Contributions to Collaborative Filtering Research

Preserving the Planar Dynamics of a CompliantBipedal Robot with a Yaw-Stabilizing Foot Design

From running birds to walking robots : optimization as a unifying framework for dynamic bipedal locomotion

Photoperiod and the timing of pupping in the Pacific harbor seal (Phoca vitulina richardsi) with notes on reproduction in northern fur seals and Dall porpoises

The Design Freedoms of a Novel Cable-Driven Manipulator

Uranium and technetium bio-immobilization in intermediate-scale permeable reactive scale barriers

Uranium and technetium bio-immobilization in intermediate-scale physical models of an in situ bio-barrier

Tide-topography coupling on a continental slope

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