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The Institute for Computational Medicine and the Department of Computer Science present a seminar on computational health hosted by Raimond Winslow, Suchi Saria and Greg Hager at noon, Thursday, March 27 in the Bloomberg School of Health’s Anna Baetjer Room:
Walter “Buzz” Stewart, PhD, Chief R & D Officer for Sutter Health System, will speak on “Why is it so difficult to disseminate health care improvements?”
Security and performance are critical goals for distributed systems. The
increased design complexity, incomplete expertise of developers, and limited
functionality of existing testing tools often result in bugs and vulnerabilities
that prevent implementations from achieving their design goals in practice.
Many of these bugs, vulnerabilities, and misconfigurations manifest after the
code has already been deployed making the debugging process difficult and costly. In order to understand the limitations and increase the robustness of distributed services and network protocols there is benefit in performing adversarial testing. Adversarial testing subjects implementations to testing beyond their basic functionality by stressing the system and ultimately performing destructive testing.
We introduce Turret a platform that provides support for automated adversarial testing
for message-passing distributed systems and network protocols. The platform uses a network
emulator to create reproducible network conditions and virtualization to run unmodified
binaries of the target system. The platform requires the user to provide a description
of the protocol messages and corresponding performance metrics. Turret supports distributed
services such as intrusion-tolerant replication, application-layer multicast, and routing
protocols, running in both wired and wireless networks. We applied Turret to 5 distributed
systems and 5 wireless routing protocols and found a total of 70 attacks and bugs. We also
discuss how we used Turret as an automated Red Team for our own protocols, and as a testing
and grading environment for the distributed systems class at Purdue University.
Cristina Nita-Rotaru is an Associate Professor in the Department of Computer Science at Purdue University where she established the Dependable and Secure Distributed Systems Laboratory (DS2), and is a member of the Center for Education and Research in Information Assurance and Security (CERIAS). Her research lies at the intersection of information security, distributed systems, and computer networks. The overarching goal of her work is designing and building practical distributed systems and network
protocols that are robust to failures and attacks while coping with the resource
constraints existent in computing systems and networks.
Cristina Nita-Rotaru is a recipient of the NSF Career Award in 2006. She is also a recipient of the Purdue Teaching for Tomorrow Award in 2007, Purdue Excellence in Research Award, Seeds for Success in 2012, Purdue College of Science Research Award in 2013. She has served on the Technical Program Committee of numerous conferences in security, networking, and distributed systems. She served as an Assistant Director for CERIAS (2011 – 2013). She was an Associate Editor for Elsevier Computer Communications (2008 – 2011), Elsevier Computer Networks (2012 – 2014), IEEE Transactions on Computers
(2011 – 2014), and ACM Transactions on Information Systems Security (2009 – 2013). She is currently an Associate Editor for IEEE Transactions on Mobile Computing and IEEE Transactions on Dependable and Secure Systems.
The Institute for Computational Medicine Distinguished Seminar Series 2015-2016 will present Suchi Saria, assistant professor, Department of Computer Science, at 11 a.m. on Tuesday, Sept. 8 in Levering Hall’s Sherwood Room.
Lunch will be provided and served at noon.
Information about ICM seminars, including links to previous talks, can be found here.
The 2015 HopHacks hackathon is set for 4:30 p.m. on Friday, Sept. 11 through 2 p.m. on Sunday, Sept. 13 in Hackerman, Hodson and Malone halls on the campus of The Johns Hopkins University. The event is now a Major-League Hacking event. Sponsors and partners include Accenture, Bloomberg, Booz Allen Hamilton, the National Security Agency, Johns Hopkins Applied Physics Laboratory and more.
Go here for more information and a link to register.
From 3 to 5 p.m. on Friday, Feb. 5 at the Hopkins Club, the Whiting School of Engineering will celebrate two milestones:
RSVP by February 2.
Ilya Shpitser, in the Department of Computer Science, will hold the John C. Malone Assistant Professorship, one of a series of professorships provided by John C. Malone, MS ’64, PhD ’69 to help recruit and retain faculty with the goal of improving healthcare using a systems-based approach. A data/inference specialist who focuses on inferring cause-effect relationships, Ilya will be a member of the new center. His research includes all areas of causal inference and missing data, particularly using graphical models. Recently, his work has helped distinguish between causation and association in observational medical data. Ilya started at Johns Hopkins as an assistant professor this summer, received his PhD under the supervision of Judea Pearl at UCLA, was a postdoctoral scholar in the program on causal inference at the School of Public Health at Harvard, and was a lecturer in statistics at the University of Southampton.
The Malone Center for Engineering in Healthcare, under the leadership of Greg Hager, the Mandell Bellmore Professor in the Department of Computer Science, is a multidisciplinary research initiative that will foster partnerships among engineers, clinicians, and scientists across Johns Hopkins University to catalyze, develop, and deploy innovations aimed at improving the efficiency and effectiveness of healthcare.
John Malone has been remarkably generous in his support of Johns Hopkins, including a gift for the construction and naming of Malone Hall. The building, which opened in 2014, is designed to advance cutting-edge collaborative and translational research and has set a new standard for academic research facilities at Johns Hopkins. The Whiting School is grateful for Dr. Malone’s continued support of professorships and the naming of this new center in the Whiting School of Engineering.
Speaker: Ryan Huang, University of California, San Diego
Time and Date: Tuesday, Feb. 23 at 10:45 am
Location: Hackerman Hall, B-17
Towards Understanding and Proactively Dealing with Failures in Modern Systems
Many of the services we use everyday now run in data centers or mobile devices. However, building systems in these modern platforms to provide reliable services is difficult. This is evidenced by the fact that despite the large amount of work put into system quality assurance, all modern systems continue to experience million-dollar outages and frustrating anomalies like battery drain.
In this talk, Huang will describe my research efforts to better understand and proactively tackle the reliability challenges in modern systems. First, he will discuss work that looks into failures in cloud services. Instead of focusing on conventional root-cause analysis, this work takes a unique angle to examine the fault-tolerance mechanisms in cloud, and analyze why they did not prevent the service failures. He will summarize several challenges (opportunities) for reducing these failures in the future. One such challenge is system configuration: existing fault-tolerance techniques often cannot tolerate (or worse are nullified by) configuration errors, and misconfiguration becomes a major source of cloud outages. He will then present work that enables cloud practitioners to proactively prevent configuration error by using a systematic validation framework. The framework consists of a declarative language for developer/operator to express configuration specification, a service that continuously checks if configuration obeys its specification, and a tool that automatically infers basic specification. He will also touch on the challenge of app misbehavior in mobile ecosystem and proactive prevention at runtime by making mobile OS defensive.
Peng (Ryan) Huang is a Ph.D. candidate at UC San Diego advised by Professor Yuanyuan Zhou. His research interests intersect systems, software engineering and programming languages. He is particularly interested in understanding rising problems in real-world systems and reflecting that understanding in new techniques to improve system dependability. His work has been applied in industry including Microsoft and Teradata, and deployed to many real users. He is currently a part-time contractor with Facebook doing research on configuration management. Peng received his MS from UC San Diego in 2013, and his BS in computer science and BA in economics from Peking University in 2010.
Bilge Mutlu, University of Wisconsin-Madison, will present “Human-Centered Principles and Methods for Designing Robotic Technologies, at 11 a.m. in Hackerman Hall B-17, on the Johns Hopkins University’s Homewood campus.
Abstract: The increasing emergence of robotic technologies that serve as automated tools, assistants, and collaborators promises tremendous benefits in everyday settings from the home to healthcare, manufacturing, and educational facilities. While these technologies promise interactions that can be highly complex and beneficial, their successful integration into the human environment ultimately requires these interactions to also be natural and intuitive. To achieve complex but intuitive interactions, designers and developers must simultaneously understand and address human and computational challenges. In this talk, I will present my group’s work on building human-centered guidelines, methods, and tools to address these challenges in order to facilitate the design of robotic technologies that are more effective, intuitive, acceptable, and even enjoyable through successful integration into the human environment. The first part of the talk will review a series of projects that will demonstrate how the marrying of knowledge about people and computational methods through a systematic design process can enable effective user interactions with social, assistive, and telepresence robots. The second part of the talk will cover ongoing work that provides designers and developers with tools to apply these guidelines to the development of real-world robotic technologies and that utilizes partnerships with domain experts and end users to ensure the successful integration of these technologies into everyday settings through applications in healthcare, manufacturing, mission-critical environments, and the home. The talk will conclude with a discussion of high-level design guidelines that can be drawn from this body of work and a roadmap for future research.
Speaker bio: Bilge Mutlu is an associate professor of computer science, psychology, and industrial engineering at the University of Wisconsin–Madison. He received his Ph.D. degree from Carnegie Mellon University’s Human-Computer Interaction Institute in 2009. His background combines training in interaction design, human-computer interaction, and robotics with industry experience in product design and development. Dr. Mutlu is a former Fulbright Scholar and the recipient of the NSF CAREER award as well as several best paper awards and nominations, including HRI 2008, HRI 2009, HRI 2011, UbiComp 2013, IVA 2013, RSS 2013, HRI 2014, CHI 2015, and ASHA 2015. His research has been covered by national and international press including the NewScientist, MIT Technology Review, Discovery News, Science Nation, and Voice of America. He has served in the Steering Committee of the HRI Conference and the Editorial Board of IEEE Transactions on Affective Computing, co-chairing the Program Committees for ROMAN 2016, HRI 2015, ROMAN 2015, and ICSR 2011, the Program Sub-committees on Design for CHI 2013 and CHI 2014, and the organizing committee for HRI 2017.
Jay Gould, professor of photography at Maryland Institute College of Art and HEMI’s 2016 Artist in Residence, will present a variety of new projects that depict and react to the research being done at HEMI in preparation for an exhibition at the MSE Library in April, 2017.
Using a wide range of media and processes, this work reimagines HEMI’s research using playful analogies, unique narratives and unexpected lab documentation, inviting audiences to admire the depth and fascination that extreme materials represent.
Gould received his BFA from the University of Wisconsin and his MFA in photography from the Savannah College of Art and Design. His work, which integrates scientific topics into installation, and constructed photographic projects, is widely exhibited and has won numerous national awards, such as the Berenice Abbott Prize and the Magenta Foundation’s Flash Forward Festival.
The Extreme Arts Open House provides an opportunity for representatives from HEMI and Maryland Institute College of Art (MICA) faculty and students to learn about each other’s research interests and explore potential synergies for either the Artist in Residence program or the Summer Project/Internship.
The event is free. Researchers from HEMI will be onsite and available to discuss their interests in possible collaboration within, but not limited to, the following areas:
If you have any questions regarding the event, please contact Ms. Bess Bieluczyk, email@example.com or (410) 516-7794.
Information for attendees:
If you are traveling by car, visitor parking is available in the South Garage. If you are using a GPS system for directions, the best address to use in 3101 Wyman Park Drive.
Malone Hall (#45 on the map) is located between Mason Hall and Hackerman Hall on the Johns Hopkins University campus.
A short engineering young alumni panel followed by open house resumes reviews with alums and employers. Drop-ins welcome! Registration encouraged. Hosted by JHU Career Center and Engineers Without Borders.