College of Liberal Arts and Human Sciences (CLAHS)
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The College of Liberal Arts and Human Sciences includes the arts, humanities, social and human sciences, and education. The College nurtures intellect and spirit, enlightens decision-making, inspires positive change, and improves the quality of life for people of all ages.
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Browsing College of Liberal Arts and Human Sciences (CLAHS) by Subject "08 Information and Computing Sciences"
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- Comparison of machine learning algorithms for emulation of a gridded hydrological model given spatially explicit inputsLim, Theodore C.; Wang, Kaidi (Elsevier, 2022-02-01)This study compares the performance of several machine learning algorithms in reproducing the spatial and temporal outputs of the process-based, hydrological model, ParFlow.CLM. Emulators or surrogate models are often used to reduce complexity and simulation times of complex models, and have typically been applied to evaluate parameter sensitivity or for model parameter tuning, without explicit treatment of variation resulting from spatially explicit inputs to the model. Here we present a case study in which we evaluate candidate machine learning algorithms for suitability emulating model outputs given spatially explicit inputs. We find that among random forest, gaussian process, k-nearest neighbors, and deep neural networks, the random forest algorithm performs the best on small training sets, is not as sensitive to hyperparameters chosen for the machine learning model, and can be trained quickly. Although deep neural networks were hypothesized to be able to better capture the potential nonlinear interactions in ParFlow.CLM, they also required more training data and much more refined tuning of hyperparameters to achieve the potential benefits of the algorithm.
- Managing an Established Digital Humanities Project: Principles and Practices from the Twentieth Year of the William Blake ArchiveReed, Ashley (Alliance of Digital Humanities, 2014-04-01)Scholars and practitioners of the digital humanities generally recognize the importance of solid project management and oversight. But coursework and publications related to DH project management tend to focus heavily on the difficulties of planning and launching a new project rather than the challenges of maintaining an established one. Meanwhile, online advice for would-be managers is couched in the language of “tips and tricks” or “steps for beginners”. Together these phenomena downplay the professional skills needed to successfully manage a project while suggesting that project management is necessary only in the beginning stages of an endeavor. They may even give the impression that scholarship in the digital humanities is inherently ephemeral. Through a case study of project management practices at the William Blake Archive, which began publishing electronic scholarly editions in 1996, this essay details the challenges and rewards of managing an established digital humanities project. Managers of mature projects may be called upon to oversee expansions in scope and mission, research and recommend new features and tools, grow or shrink the number of project staff, seek out alternate sources of support when early grants run out, maintain continuity as collaborators join and leave the project, and develop new workflows and procedures to reflect these and other changes.