Michael Zentner
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View article: nanoHUB services for FAIR simulations and data: ResultsDB and Sim2Ls
nanoHUB services for FAIR simulations and data: ResultsDB and Sim2Ls Open
nanoHUB is an open cyber platform for online simulation, data, and education that seeks to make scientific software and associated data widely available and useful. This paper describes recent developments in our simulation infrastructure …
View article: Science Gateways and AI/ML: How Can Gateway Concepts and Solutions Meet the Needs in Data Science?
Science Gateways and AI/ML: How Can Gateway Concepts and Solutions Meet the Needs in Data Science? Open
Science gateways are a crucial component of critical infrastructure as they provide the means for users to focus on their topics and methods instead of the technical details of the infrastructure. They are defined as end-to-end solutions f…
View article: Critical Infrastructure - Modern Approach and New Developments
Critical Infrastructure - Modern Approach and New Developments Open
Modern critical infrastructures (CIs) (e.g., electricity, water, transportation, telecommunications, and others) form complex systems with a high degree of interdependencies from one CI to the others. Natural disasters (e.g., earthquakes, …
View article: Driving Sustainability of a Gateway with a Customer Relationship Management (CRM) System
Driving Sustainability of a Gateway with a Customer Relationship Management (CRM) System Open
The science gateway nanoHUB has operated and supported a growing user base for over 20 years. To move toward future sustainability, nanoHUB must retain existing users, cultivate new users, and foster community involvement. In order to supp…
View article: The Delta Gateway: Exploring Community Use of GPU Resources through a Science Gateway
The Delta Gateway: Exploring Community Use of GPU Resources through a Science Gateway Open
What could a research team accomplish if given access to the latest GPU hardware? A molecular dynamics research team could process protein-ligand tests using 100 GPUs on Delta in about 3.6 days, a task that would take their local lab a ful…
View article: The Science Gateway Community Institute's Consulting Services Program: Lessons for Research Software Engineering Organizations
The Science Gateway Community Institute's Consulting Services Program: Lessons for Research Software Engineering Organizations Open
The Science Gateways Community Institute (SGCI) is an NSF Software Infrastructure for Sustained Innovation (S2I2) funded project that leads and supports the science gateway community. Major activities for SGCI include a) sustainability tra…
View article: Open Science via HUBzero: Exploring Five Science Gateways Supporting and Growing their Open Science Communities
Open Science via HUBzero: Exploring Five Science Gateways Supporting and Growing their Open Science Communities Open
The research landscape applying computational methods has become increasingly interdisciplinary and complex regarding the research computing ecosystem with novel hardware, software, data, and lab instruments. Reproducibility of research re…
View article: Common Resource Descriptions for Interoperable Gateway Cyberinfrastructure
Common Resource Descriptions for Interoperable Gateway Cyberinfrastructure Open
Science gateway projects face challenges utilizing the vast and heterogeneous landscape of powerful cyberinfrastructure available today, and interoperability across technologies remains poor. This interoperability issue leads to myriad pro…
View article: Common Usability Problems and Solutions for Science Gateways
Common Usability Problems and Solutions for Science Gateways Open
Science gateways require a wide range of considerations to make them successful and sustainable. One important consideration is usability. Gateway creators typically lack usability expertise and do not know how to avoid common usability pr…
View article: Toward Interoperable Cyberinfrastructure: Common Descriptions for Computational Resources and Applications
Toward Interoperable Cyberinfrastructure: Common Descriptions for Computational Resources and Applications Open
The user-facing components of the Cyberinfrastructure (CI) ecosystem, science\ngateways and scientific workflow systems, share a common need of interfacing\nwith physical resources (storage systems and execution environments) to manage\nda…
View article: Probabilistic Diagnostic Tests for Degradation Problems in Supervised Learning
Probabilistic Diagnostic Tests for Degradation Problems in Supervised Learning Open
Several studies point out different causes of performance degradation in supervised machine learning. Problems such as class imbalance, overlapping, small-disjuncts, noisy labels, and sparseness limit accuracy in classification algorithms.…
View article: Common Usability Problems and Solutions for Science Gateways
Common Usability Problems and Solutions for Science Gateways Open
Presented at Gateways 2020, Online, USA, October 12–23, 2020
View article: Clustering Download Events to Identify Classrooms
Clustering Download Events to Identify Classrooms Open
The Network for Computational Nanotechnology's (NCN) [1] nanoHUB site uses the HUBzero® platform [2] to offer a variety of content, simulation tools, and collaboration methods to an international community of students, teachers and profess…
View article: Visualizing User Interactions with Simulation Tools
Visualizing User Interactions with Simulation Tools Open
In order to improve user experiences with simulation tools hosted by cyberinfrastructure, we endeavor to gain a better understanding of how users interact with tools. The dimensionality of these tools is often too large to be intuitively u…
View article: Clustering Download Events to Identify Classrooms
Clustering Download Events to Identify Classrooms Open
The Network for Computational Nanotechnology's (NCN) [1] nanoHUB site uses the HUBzero® platform [2] to offer a variety of content, simulation tools, and collaboration methods to an international community of students, teachers and profess…
View article: Using Automatic Detection and Characterization to Measure Educational Impact of nanoHUB
Using Automatic Detection and Characterization to Measure Educational Impact of nanoHUB Open
The science gateway and online community nanoHUB hosts over 4000 technical resources related to nanoscience and nanotechnology and online capabilities for nano community engagement. nanoHUB also hosts over 500 online simulation tools. nano…
View article: A Statistical Approach to Increase Classification Accuracy in Supervised Learning Algorithms
A Statistical Approach to Increase Classification Accuracy in Supervised Learning Algorithms Open
Probabilistic mixture models have been widely used for different machine learning and pattern recognition tasks such as clustering, dimensionality reduction, and classification. In this paper, we focus on trying to solve the most common ch…
View article: A Statistical Approach to Increase Classification Accuracy in Supervised\n Learning Algorithms
A Statistical Approach to Increase Classification Accuracy in Supervised\n Learning Algorithms Open
Probabilistic mixture models have been widely used for different machine\nlearning and pattern recognition tasks such as clustering, dimensionality\nreduction, and classification. In this paper, we focus on trying to solve the\nmost common…
View article: HUBzero and CatalyzeCare: A community driven platform for data sharing and collaboration in medical informatics research
HUBzero and CatalyzeCare: A community driven platform for data sharing and collaboration in medical informatics research Open
The HUBzero platform is an infrastructure enabling online scientific communities to collaborate and share information and computational resources as they explore scientific phenomena. HUBzero has been adopted by the Regenstrief Center for …
View article: HUBzero and CatalyzeCare: A community driven platform for data sharing and collaboration in medical informatics research
HUBzero and CatalyzeCare: A community driven platform for data sharing and collaboration in medical informatics research Open
The HUBzero platform is an infrastructure enabling online scientific communities to collaborate and share information and computational resources as they explore scientific phenomena. HUBzero has been adopted by the Regenstrief Center for …
View article: Science Gateways: The Long Road to the Birth of an Institute
Science Gateways: The Long Road to the Birth of an Institute Open
Nowadays, research in various disciplines is enhanced via computational methods, cutting-edge technologies and diverse resources including computational infrastructures and instruments. Such infrastructures are often complex and researcher…
View article: Science Gateways: Sustainability via On-Campus Teams
Science Gateways: Sustainability via On-Campus Teams Open
The challenges for creators of specific science gateways are manifold, and the expertise needed for well-designed science gateways is very diverse. The sustainability of science gateways is crucial to serve communities effectively, efficie…
View article: Science Gateways: Sustainability via On-Campus Teams
Science Gateways: Sustainability via On-Campus Teams Open
The challenges for creators of specific science gateways are manifold, and the expertise needed for well-designed science gateways is very diverse. The sustainability of science gateways is crucial to serve communities effectively, efficie…
View article: HUBbub 2013 Survey Data
HUBbub 2013 Survey Data Open
This was a survey taken at the HUBbub 2013 meeting about various aspects of users' desire to share their actions as they use online simulation tools. The premise is that by observing the manner in which users parameterize simulat…