Institute of Computing and Cybersystems (ICC) Blog

Category: DataS

Article by Tim Havens in IEEE Transactions on Fuzzy Systems

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An article co-authored by Tim Havens, associate dean for research, College off Computing, “Soft Overlapping Community Detection in Large-Scale Networks via Fast Fuzzy Modularity Maximization,” was published in the March 2020 issue of IEEE Transactions on Fuzzy Systems.

Havens’s co-authors are Audrey Yazdanparast (ECE) and Mohsen Jamalabdollahi of Cisco Systems.

Article Abstract: Soft overlapping clustering is one of the notable problems of community detection. Extensive research has been conducted to develop efficient methods for non-overlapping and crisp-overlapping community detection in large-scale networks. In this paper, Fast Fuzzy Modularity Maximization (FFMM) for soft overlapping community detection is proposed.

FFMM exploits novel iterative equations to calculate the modularity gain associated with changing the fuzzy membership values of network vertices. The simplicity of the proposed scheme enables efficient modifications, reducing computational complexity to a linear function of the network size and the number of communities. Moreover, to further reduce the complexity of FFMM for very large networks, Multi-cycle FFMM (McFFMM) is proposed.

The proposed McFFMM reduces complexity by breaking networks into multiple sub-networks and applying FFMM to detect their communities. Performance of the proposed techniques are demonstrated with real-world data and the Lancichinetti-Fortunato-Radicchi (LFR) benchmark networks. Moreover, the performance of the proposed techniques is eval- uated versus some state-of-the-art soft overlapping community detection approaches. Results show that the McFFMM produces a remarkable performance in terms of overlapping modularity with fuzzy memberships, computational time, number of detected overlapping nodes, and Overlapping Normalized Mutual Informa- tion (ONMI).

View more info here.

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Tim Havens Quoted in Enterprisers Project Article

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Tim Havens, associate dean for research, College of Computing, and director of the Institute of Computing and Cybersystems, was quoted in the article, “Data science vs. machine learning: What’s the difference?” published March 10, 2020, in the online publication, The Enterprisers Project.

Havens’s quotation concerns machine learning models, which the article explains are only as good as the quality of the data they learn from. Havens says, “Luckily, there are many types of problems for which lots of data exist.”

Link to the article here.

The Enterprisers Project is a community and online publication built to discuss the evolving role of the CIO and how IT leaders drive business value in a digital world. It is a collaborative effort between Harvard Business Review and Red Hat that delivers daily analysis and advice on topics ranging from emerging technologies to IT talent. Articles in the publication are written by CIOs, for CIOs and other IT executives, who share lessons learned from innovating in true partnership with the business. 

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Tim Havens Is Co-author of Article in IEEE Transactions on Fuzzy Systems

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Timothy Havens, director of the Institute of Computing and Cybersystems (ICC), is co-author of the article, “A Similarity Measure Based on Bidirectional Subsethood for Intervals,” published in the March 2020 issue of IEEE Transactions on Fuzzy Systems.

Havens’s co-authors are Shaily Kabir, Christian Wagner, and Derek T. Anderson.

Havens is also associate dean for research, College of Computing, and the William and Gloria Jackson Associate Professor of Computer Systems.

Christian Wagner, an affiliated member of the ICC, was an ICC donor-sponsored visiting professor at Michigan Tech in the 2016-17 academic year. He is now with the School of Computer Science at University of Nottingham.

Shaily Kabir is with the School of Computer Science, University of Nottingham. Derek T. Anderson is with the Electrical Engineering and Computer Science Department, University of Missouri, Columbia.

S. Kabir, C. Wagner, T. C. Havens and D. T. Anderson, “A Similarity Measure Based on Bidirectional Subsethood for Intervals,” in IEEE Transactions on Fuzzy Systems.

https://ieeexplore.ieee.org/document/9019656

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Tim Havens Quoted in Enterprisers Project Article

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ICC director Tim Havens (DataS), was quoted in the story “Artificial intelligence (AI) vs. natural language processing (NLP): What are the differences?” published February 26, 2020, in the online publication, The Enterprisers Project.

With AI, computers can learn to accomplish a task without ever being explicitly programmed to do so, says Timothy Havens, the William and Gloria Jackson Associate Professor of Computer Systems in the College of Computing at Michigan Technological University and director of the Institute of Computing and Cybersystems.

For those who prefer analogies, Havens likens the way AI works to learning to ride a bike: “You don’t tell a child to move their left foot in a circle on the left pedal in the forward direction while moving your right foot in a circle… You give them a push and tell them to keep the bike upright and pointed forward: the overall objective. They fall a few times, honing their skills each time they fail. That’s AI in a nutshell.”

The Enterprisers Project is a community and online publication built to discuss the evolving role of the CIO and how IT leaders drive business value in a digital world. It is a collaborative effort between Harvard Business Review and Red Hat that delivers daily analysis and advice on topics ranging from emerging technologies to IT talent. Articles in the publication are written by CIOs, for CIOs and other IT executives, who share lessons learned from innovating in true partnership with the business. 

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Two Papers by Yakov Nekrich Accepted by SoCG 2020 Conference

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Yakov Nekrich, associate professor, Department of Computer Science, has been notified that two scholarly papers he has authored were accepted by the 36th International Symposium on Computational Geometry (SoCG 2020), which takes place June 23-26, 2020, in Zurich, Switzerland.

Nekrich is a member of the ICC’s Center for Data Sciences.

The two papers are “Further Results on Colored Range Searching,” by Timothy M. Chan, Qizheng He, and Nekrich, and “Four-Dimensional Dominance Range Reporting in Linear Space” by Nekrich alone.

The Annual Symposium on Computational Geometry (SoCG) is an academic conference in computational geometry. Founded in 1985, it was originally sponsored by the SIGACT and SIGGRAPH Special Interest Groups of the Association for Computing Machinery (ACM). It dissociated from the ACM in 2014. Since 2015 the conference proceedings have been published by the Leibniz International Proceedings in Informatics Since 2019 the conference has been organized by the Society for Computational Geometry. (Wikipedia)

Visit the SoCG 2020 website.

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Thomas Oommen Presents Lecture at TRB Annual Meeting

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Members of the Michigan Tech Transportation Institute (MTTI) were active at the

Among the many Michigan Tech students and faculty who attended and presented at the 2020 Transportation Research Board (TRB) Annual Meeting held recently in Washington, DC. was Thomas Oommen (GMES), who gave a lecture on “Remote terrain Strength for Mobility Characterization” at the meeting’s lectern Session 1384: Integration of Remote Sensing Techniques and Classical Instrumentation. Oommen is a member of the ICC’s Center for Data Sciences.

The Transportation Research Board (TRB) 99th Annual Meeting was held January 12–16, 2020, in Washington, D.C. More than 13,000 transportation professionals from around the world were expected to attendd.

The meeting program covered all transportation modes, with more than 5,000 presentations in nearly 800 sessions and workshops, addressing topics of interest to policy makers, administrators, practitioners, researchers, and representatives of government, industry, and academic institutions. A number of sessions and workshops focused on the spotlight theme for the 2020 meeting: A Century of Progress: Foundation for the Future.

Learn more about the TRB.

Read the full Tech Today On the Road article.

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Minakata, Students, Rouleau Publish Paper

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The Process Safety and Environmental Protection special issue on Advanced Oxidation Process (Elsevier), has accepted for publication a paper by associate professor Daisuke Minakata (CEE), his students Robert Zupko, Divya Kamath, and Erica Coscarelli, and his collaborator and co-PI Mark Rouleau (SS), ICC Center for Data Sciences. pictured at left with Mary Raber. Photo by Daily Mining Gazette.

The paper concerns research supported by the National Science Foundation’s Chemical, Bioengineering, Environmental and Transport Systems (CBET) Division.

Grant Title: Coupling Experimental and Theoretical Molecular-Level Investigations to Visualize the Fate of Degradation of Organic Compounds in Aqueous Phase Advanced Oxidation Systems

Grant Abstract: The lack of an overarching management plan combined with uncertainty about the adverse human health and ecological impacts of trace amounts of known and emerging organic compounds have raised public concerns about water. These issues also present major challenges to next generation water treatment utilities dealing with de facto and planned wastewater reuse. Advanced oxidation processes that produce highly reactive hydroxyl radicals are promising technologies to control trace amounts of organic compounds. Although the initial fate of hydroxyl radical induced reactions with diverse organic compounds have been studied, the mechanisms that produce intermediate radicals and stable-byproducts are not well understood. Significant barriers remain in our understanding of complex multi-channel elementary reaction pathways embedded in peroxyl radical bimolecular decay that produce identical intermediate-radicals and stable-byproducts. The model developed in the course of this research will give researchers and policy makers the ability to predict the likely chemical by-products and alternative options to provide least adverse impact on the general public who will directly consume this water or other ecological organisms who will be exposed indirectly.

The proposed study will integrate three thrusts to discover the currently unknown fate of the three major degradation pathways. First, we will perform pulse-photolysis kinetic measurement to determine the temperature-dependent overall reaction rate constants for multi-channel peroxyl radical reactions. We will also measure the resulting byproducts using a mass spectrometry. Second, we will employ quantum mechanical theoretical calculations to determine the elementary reaction pathways and associated reaction rate constants. Third, we will then combine our kinetic measurements with our theoretical calculations to develop an agent-based model that will enable us to visualize and predict the fate of organic compounds. With explicitly assigned reaction rules and molecular behavior embedded within a simulated reaction network, the resulting agent-based model will use software agents to represent radical species and organic compounds and then simulate their interactions to predict corresponding consequences (i.e., byproducts) over time and space. Finally, experimental observations will validate the outcomes from the agent-based model.

The Chemical, Bioengineering, Environmental and Transport Systems (CBET) Division supports innovative research and education in the fields of chemical engineering, biotechnology, bioengineering, and environmental engineering, and in areas that involve the transformation and/or transport of matter and energy by chemical, thermal, or mechanical means.

View additional grant info on the NSF website.

Find more information about the Process Safety and Environmental Protection special issue on Advanced Oxidation Process here.

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Tim Havens Named Associate Dean for Research

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Timothy C.  Havens, the William and Gloria Jackson Associate Professor of Computer Systems and the director of the Institute of Computing and Cybersystems, has been appointed the associate dean for research for the College of Computing, effective immediately. 

In his new role, Havens will encourage and enable research success in the College and promote collaborative, cross-disciplinary research and learning experiences through research support and development, communication and marketing, advancement, and College strategy and planning.

“Tim is highly passionate about supporting research creativity and pushing the boundaries of computational knowledge.  He also has a strong history of supporting student degree completion and growing Michigan Tech’s reputation,” said Dean Adrienne Minerick, College of Computing. “For these reasons and more, he is an outstanding individual to cultivate and grow the College of Computing via independent research, collaborative research, and large team endeavors.  I am thrilled he has agreed to lead in this exciting new era of computing at Michigan Tech.”

In his new role, Havens will collaborate with faculty and staff in identifying and pursuing research opportunities, lead and assist with College efforts to support and secure large, externally funded research awards, and work closely with the Dean, College leadership, and other constituent groups to advance the College of Computing’s reputation, research capabilities, and impact. Havens will also work to enhance communication and relationships between other units on campus surrounding computing and related research areas and contribute to College teaching needs, among other duties.

Havens’s overarching goals for his new position encompass developing key, sustainable resources to enable research success in the College and Michigan Tech as a whole. This includes recruitment of technical research support, mentoring for new faculty and research staff, continued development of a seminar series for distinguished visitors and rising stars, and growing donor engagement in research activity.

“My long-term goal is to develop a flourishing, sustainable culture of creativity, innovation, and education, where research is the thread of daily eagerness to move the boundaries of knowledge and to solve hard puzzles,” Havens explained. “The product of this culture will be productive, rewarded researchers who exemplify their passion for pushing the envelope to our students, our alumni, and the greater research community.”

Havens knows that this sounds lofty and utopic, but his hope is that someday “we will all turn to each other and say, ahhhhh, this is it! This is inspiring!”

“During his time at Michigan Tech, Tim has proven to be a dedicated and productive researcher and—most importantly—a great collaborator,” said Peter Larson, director of research development at Michigan Tech. “It has been a pleasure to work alongside Tim this academic year in the ICC. I am confident that his leadership will be a great asset to both ICC and the College of Computing in the coming years. Tim’s collaborative nature will be instrumental in bringing teams together as we seek to expand the portfolio of computing research at Michigan Tech across new programs, new areas of research, new sponsors, and larger projects.”

Havens has a passion both for academic research and innovation, and also for mentoring. This is why he loves being a professor, where he can do both. “I really look forward to working with all the College researchers—it’s a unique opportunity to both act as a mentor to our researchers, and also to continue my own learning experience. I’m especially eager to learn more about all the great research going on in the College and at Tech, and to help our researchers accomplish their research goals,” Havens said.

“Those who know me well, know that I also like to put on a show. I view part of being an Associate Dean as exactly that—I really enjoy telling the stories of the College and our researchers, and cultivating the visibility of our new College. It’s an exciting time to be in computing at Michigan Tech.”

Havens considers himself fortunate to have to have worked with several talented research mentors in his career path, starting with his experience as a master’s student at Michigan Tech, where he investigated the optical properties of the atmosphere with his M.S. advisor, Michigan Tech professor Dr. Mike Roggemann.

Havens first job following completion of his M.S. was at MIT Lincoln Laboratory, where he investigated adaptive optics systems in support of the Airborne Laser program. Following that experience, he knew he wanted to be an academic researcher and a professor, so he returned to school to complete his Ph.D. at University of Missouri with advisor Dr. Jim Keller.

“Dr. Keller is a consummate researcher and one can’t help but to catch the research bug working with him. He was and continues to be a great mentor; he made sure that I received lots of practice writing papers and proposals, talking to program managers, strategizing research projects, collaborating outside my field, all important aspects of running a research program,” Havens said.

Havens notes that the duties of his latest gig, as director of the Institute of Computing and Cybersystems (ICC), are very similar to those of the Associate Dean for Research. 

“The ICC is very much a part of the strategic vision for research in the College of Computing, as the institute acts as the research arm of the College. This integration allows us to best utilize the finite resources of both the College of Computing and the ICC to get the greatest return on key investments in people and resources,” Havens explained.

“Launching the new College has been a wild experience so far and such a fantastic opportunity,” Havens said. “With this shift, we boldly announce that computing is a major field of study and not just an underpinning to other disciplines. I see the new College as a place of opportunity to experiment, collaborate, develop new pedagogies, and become a model for other institutions of higher learning. Our team is strong and creative, and it’s fun working on this puzzle with them.”

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Tim Havens Receives $120K Award from Signature Research, Inc.

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Timothy Havens

Tim Havens, College of Computing associate dean for research, has been awarded an 18-month, $120,000 grant by Signature Research, Inc. The project, “Machine Learning for Human-Based Visual Detection Metrics,” contributes to an effort to develop a methodology that predicts the impact to human vision due to the existence of atmospheric particles. Havens is also the director of the Institute of Computing and Cybersystems and the William and Gloria Jackson Associate Professor of Computer Systems.

Abstract: This project contributes to an effort to develop a methodology that predicts the impact to human vision due to the existence of atmospheric particles. Due to the variability of atmospheric conditions and particulate matter (dust, ice, etc.) extensive field test campaigns to characterize the impacts to human vision are impractical. As a result, a model-based approach must be developed in order to evaluate all possible conditions in a virtual environment. It is envisioned that this approach will incorporate both human in-the-loop evaluations as well as generation of machine learning algorithms to serve as an in-situ human observer.

Signature Research, Inc. provides solutions to DoD and the Intelligence Community, specializing in Signature Phenomenology, Analysis, and Modeling of items of military interest covering the breadth of the electromagnetic spectrum. Signature Research, Inc. engineers and scientists have developed methodologies, tools and products to help visualize and interpret electromagnetic signatures, and Signature Research, Inc. staff are recognized experts within the various communities in which they work. SGR’s corporate headquarters is located in Calumet, Michigan, with a second operating location in Navarre, Florida near Eglin Air Force Base and Hurlburt Field. http://signatureresearchinc.com

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