Photo Courtesy www.bwtechumbc.com

Potential good news for internship and job seekers. The Baltimore Sun reported that four tech-focused companies have just taken up shop at bwtech@UMBC. The companies are:

Communications Scientific International, a communications systems and technologies company. Communications Scientific International “provides communications and information systems for satelliete, airbone and ground applications to the Department of Defense,” says the Sun.

Tech Edge USA, an IT solutions company.

Assured Information Security (AIS), a small business that specializes in Information Operations, including Network Operations, Electronic Warfare, and Computer Network Operations. AIS works closely with the Department of Defense.

Clovis Group, a technology staffing and consulting services firm.

EE Graduate Seminar

High Power Mid-Infrared Quantum Cascade Laser
Arrays for Standoff Photoacoustic Chemical Detection

Xing Chen, PhD (EE) Student
Computer Science and Electrical Engineering, UMBC

11:30am-12:45pm, Friday, 30 March 2012, ITE 237

Quantum cascade lasers (QCLs) are compact, powerful, mid-infrared, Semiconductor laser sources. High power QCLs are very important to infrared counter measures (IRCM) and standoff chemical detection applications, as well as others. The performance of such systems critically depend on the amount of power that QCLs can produce. One way to achieve high power operation is to use multi-emitter phase-locked laser arrays.

The first part of the seminar presents the issues and challenges to design, fabricate, and characterize multi-emitter phase-locked QCL arrays for achieving high power operation. The second part of the seminar discusses using high power mid-infrared QCLs to perform standoff photoacoustic (PA) chemical detection. The PA effect is a photo-matter effect involving generation and detection of an acoustic signal when a gas sample absorbs electromagnetic energy (particularly of light).

In recent years, with the help of the development of mid-infrared QCLs, significant progress has been made in their use for PA chemical detection, and sensitivity has been improved significantly. Our theoretical and experimental studies of standoff photoacoustic chemical detection, using QCLs as the laser source, will be presented.

Xing Chen received the BS degree in Opto-Electronics Engineering from Huazhong University of Science and Technology in 2007, and the MSEE degree from UMBC in 2009. He is currently a PhD (EE) candidate at UMBC. Mr. Chen's research interest includes design and fabrication of high power mid-infrared phase-locked QCL arrays and application to standoff photoacoustic chemical detection.

Host: Prof. Joel M. Morris

Ph.D. Defense

Multivariate Time Series Analysis
of Physiological and Clinical Data

Patti Ordóñez Rozo

1:00pm Thursday, 29 March 29 2012, ITE 325b UMBC

The complexity and volume of collected medical data is greater now than at any point in the history of medicine. Medical providers are expected to examine large volumes of data and identify correlations among parameters based on their own clinical experience to detect significant medical events or conditions. The information overload that providers may face may hinder the diagnostic process. Most existing visualizations of the data to assist the provider in analyzing the information consist of a table or plot of values for a particular parameter as a function of time. Automated techniques for discovering these correlations not only may assist the provider in making a diagnosis but may help to identify hidden patterns within the data associated with specific medical conditions or events. Current visualization and machine learning techniques show promise for extracting this information.

This dissertation presents three novel representations and two visualizations to assist in the analysis of multivariate time series data. It focuses on physiological and clinical data, in particular, because this type of data captures the complexity of a human being, and thus, the multivariate time series in this type of data are more interdependent and synchronized than most. The three representations are the Multivariate Time Series Amalgam (MTSA), the Stacked Bags-of-Patterns (Stacked BoP), and the Multivariate Bag-of-Patterns (Multivariate BoP). Each provides an integrated, multivariate approach for representing multivariate time series data. An evaluation of the latter two techniques against two techniques that use univariate techniques of multiple variables, Ensemble Voting with Bag-of-Patterns and Multivariate Piecewise Dynamic Time Warping in five diverse datasets yields interesting insights into the classification of multivariate time series.

The MTSA representation is the foundation for two visualizations – the MTSA Visualization and the Fixed Dual MTSA Visualization. These animated visualizations capture the rate of change of provider-selected parameters and the relationships among them. While both visualizations were created for the medical domain, they generalize to domains where multiple variables measure the state of an entity as a function of time. An evaluation of the Fixed Dual MTSA Visualization was carried out with 23 pediatric residents at Johns Hopkins University School of Medicine. The results indicate that the visualization merits further investigation for use as a diagnostic tool.

Committee

• Dr. Tim Oates (co-chair)
• Dr. Marie desJardins (co-chair)
• Dr. Anupam Joshi
• Dr. Jim Fackler, JHMI
• Dr. Christoph U. Lehmann, JHMI

Dr. Rheingans has been the Director of UMBC’s Center for Women in Technology (CWIT) since the summer of 2009. Since then, she has mentored over a hundred students within the CWIT and SITE scholarship programs.

Congratulations to Dr. Penny Rheingans, the recipient of one of this year’s University System of Maryland (USM) Regents’ Faculty Awards for Mentoring.

Awarded to no more than four USM professors each year, the USM Regents’ Faculty Award for Mentoring is regarded as the highest honor that the Board gives out to recognize outstanding faculty achievement. Mentoring is one of the five award categories, which includes Teaching, Scholarship, Research, or creative activity, Public Service, and Innovation.

“I feel humbled by being honored this way,” says Dr. Rheingans. “Most of the things I'm being honored for are the result of the inspiration and hard work of a whole team of people. I could not have done nearly so much without them.”

Each year, nominees for the mentoring award are chosen who have not only fulfilled their university-sanctioned obligations, but have “clearly exceed[ed] ordinary expectations,” says the USM website. Mentoring nominees are recognized for their influence in areas like developing their students’ careers, aiding with retention and graduation rates, and improving post-baccalaureate progression and employment rates. After being nominated by the Regents’ Faculty Awards Committee, nominees are ultimately chosen by the Board of Regents.

Dr. Rheingans’ most notable mentoring contributions have been her work as the Director of UMBC’s Center for Women in Technology (CWIT). In 2008, troubled by the obstacles facing women in the field and the fact that they made up a mere 10% of Computer Science majors at UMBC, Dr. Rheingans accepted an invitation to become Interim Director of CWIT. The position was a good fit, and in the summer of 2009, she became Director.

“My core goal has been to make the College of Engineering and Information Technology (COEIT) a more welcoming place for a broad array of students, in particular for women and those who support them,” wrote Dr. Rheingans in an essay to the award’s Institutional Faculty Nominating Committee (IFNC) that details her mentoring contributions. “My role as CWIT Director is to continue to inspire ripples of positive change, reaching well beyond my personal grasp.” 

As Director, Dr. Rheingans has helped scholars succeed by serving as a personal mentor and maintaining an infrastructure for student support. She will soon take on a similar role with the Transfer-Scholarships in Information Technology and Engineering program (T-SITE). Debuting next Fall, the T-SITE scholarship program targets transfer students majoring in technology fields.  

 “I chose to become a professor, in large part, because I wanted to help students learn new things, explore new fields, and develop new skills,” says Rheingans, who has been teaching in some capacity since high school. Teaching was something that always interested Rheingans, who came to UMBC in 1998 as an assistant professor. 

“Mentoring just seemed like a natural extension of teaching,” says Rheingans. “A good teacher inspires individual interactions beyond the classroom — that's the heart of mentoring.”

Dr. Rheingans will be recognized for this honor at UMBC’s Annual Faculty and Staff Awards Ceremony on April 4.

UMBC Computer Science Ph.D. student Adrian Rosebrock and the company he founded and heads, ShiftyBits LLC, were recently awarded a competitive research contract from the National Cancer Institutes (NCI/NIH) to conduct research and development in the use of image processing and machine learning techniques to automatically analyze histology images of the breast.

Through the awarded research contract, Adrian will be helping NCI researchers with the design and development of automatic identification techniques for terminal duct lobular units (TDLUs) of the breast, the structures from which most breast cancers arise. This work will also create standard metrics for TDLUs that will aide researchers working within cancer research.

Data suggests that the morphology of TLDUs is related to several breast cancer risk factors, including mammographic density. In addition, TDLU morphology may represent an independent risk factor for breast cancer among women with a biopsy for benign breast disease. For this research project, Shiftybits will be given access to a large NIH dataset of breast biopsies as well as the Komen histology datasets.

Adrian received a B.S. in Computer Science in 2010 from UMBC and founded Shiftbits, LLC in 2011. He is continuing his studies as a Computer Science Ph.D. student at UMBC student, focusing on the combination of text and image retrieval systems.  One research project he  at UMBC involves the automatic identification of pills in images.  At UMBC, Adrian is and working with Professor Tim Oates and Dr. Jesus Caban  who is a researcher at Naval Medical Center and NIH and also teaches at UMBC.

Still looking for a summer internship? The 2012 Google Summer of Code (GSoC) starts accepting application from students on Monday March 26.

GSoC is a global program funded by Google that pays undergraduate or graduate students a $5000 stipend to write code for open source projects. GSoC has worked with the open source community to identify and fund exciting projects for the upcoming summer. Last year over 1,100 students were funded by the program. The FAQ is a good place to find out more.

A set of open source projects (aka mentoring organizations) has been selected. Students apply to work on one of more of these and each mentoring organization ranks the students interested in working with them. Google facilitates the final selection and pairing. The mentoring organization works closely with the student to define tasks, check progress, help solve problems, etc. Typically the student works remotely, interacting with his or her mentor via email, chat, skype, etc.

Students can submit applications via the Google Summer of Code 2012 site from March 26 to April 6. Google says that that the best applications they receive are from students who took the time to interact with one of the participating mentoring organizations and discuss their ideas before submitting an application. So your first step should be to look at the list of 2012 GSoC Mentoring Organizations and contact some that have projects that interest you and for which you have the right skills and background.

See the GSoC 2012 Program Timeline for a complete schedule. You might also check out the information on the Advice for GSoC Students Page and the GSoC forum.

Congratulations to Dr. Marie desJardins, who placed 44th out of 593 competitors in the American Crossword Puzzle Tournament in Brooklyn, New York last weekend. The tournament—directed by New York Times Crossword Puzzle Editor Will Shortz—is the nation’s oldest and largest crossword competition.

Competitors are judged based on their accuracy and speed while solving eight original crossword puzzles. Dr. desJardins placed 5^th of the 87 Mid-Atlantic competitors, she was the 8^th ranked woman in the entire tournament, and the top-ranked woman from the Mid-Atlantic.

Dr. desJardins was also awarded an “I Beat Dr. Fill” button for scoring higher than Dr. Fill, a crossword-solving program designed by software engineer Matt Ginsberg. The program pulls answers from databases of old crosswords, dictionaries, and sources like Wikipedia, but can sometimes get caught up on tricky clues, says a Boston Globe article.

Photo Courtesy www.crosswordtournament.com

UMBC's Cyber Defense Team is looking for new members. This semester the team competed in the Collegiate Cyber Defense Championship. In this competition, each team defended a mock corporate network against a horde of professional hackers in a fast-paced, real-time event over the course of two days. These competitions are a great way to network with government agencies and key companies in the security industry.

The UMBC Cyber Defense Team provides a great opportunity to gain practical, hands-on experience in information security, intrusion detection, cybersecurity, and network security. The team practices both penetration and defense of isolated networks similar to real business environments. The group meets at 7:00pm on Mondays in ITE 367 and will have special events that will be announced also. No experience is required, but you should be motivated to learn about computer networks and systems security.

You can find additional information and how to join our mailing list at the UMBC Cyberdawgs website. Contact Marc Warfield (marc9 at umbc.edu) for more information.

Changing the Landscape of Voting and Voter Registration through Universal Design

Dr. Juan E. Gilbert
School of Computing
Clemson University

12:00-1:00pm Wednesday, 28 March 2012
room 459 ITE Building, UMBC

Subsequent to the debacle of the 2000 U.S. Presidential election, it became abundantly clear that America’s archaic voting system was in dire need of a major overhaul. Consequently, Direct Recording Electronic (DRE) voting machines were purchased by several states. The use of these machines has not been without controversy with respect to security, trust and ease of use. Professors and security research teams have found several vulnerabilities in current voting technologies. In 2002, the Help America Vote Act (HAVA) was created to provide all citizens equal access to participate in the electoral process, regardless of ability. The Prime III voting system, http://www.PrimeVotingSystem.com , is a secure, multimodal electronic voting system that takes a universal design approach to address security, trust and ease of use. Dr. Gilbert and his research team were recently awarded a $4.5 million dollar grant from the U.S. Election Assistance Commission to conduct research on accessible voting technologies.

Dr. Juan E. Gilbert is an IDEaS Professor and Chair of the Human-Centered Computing Division in the School of Computing at Clemson University where he leads the HCC Lab. He is also a Professor in the Automotive Engineering Department at Clemson University. Dr. Gilbert is a Fellow of the American Association for the Advancement Science (AAAS), an ACM Distinguished Scientist, National Associate of the National Research Council of the National Academies, an ACM Distinguished Speaker and a Senior Member of the IEEE Computer Society. In 2011, Dr. Gilbert was given a Presidential Award for Excellence in Science, Engineering and Mathematics Mentoring by President Barack Obama.

Interaction with Virtual Environments

Tabitha C. Peck
Event Lab, University of Barcelona

1:00pm Tuesday 27 March 2012, ITE32bb, UMBC

Immersive virtual environments (VEs) enable user-controlled interactions within a computer-generated virtual world, such as head-controlled point-of-view, user-controlled locomotion, and user-controlled self-avatars. In this talk I will present three projects focusing on the development of VE systems through understanding human interactions within the VE. The first project presents a VE system that enables users to really walk through VEs that are larger than the tracker-space by manipulating the imprecisions of the human visual system. The remaining two projects focus on virtual embodiment. The theory of embodiment is based on the plasticity of the human mind and its ability to accept a virtual avatar’s body as its own. One theory as to why embodiment works, following the same underlying principles thought to cause the “rubber hand illusion” from cognitive psychology, is that when given appropriate visual and/or haptic stimuli, people will accept an external representation of a body part as their own. This effect has been shown to extend to full-body avatars in virtual environments. I will present one project that demonstrates, through electroencephalography (EEG), that people respond to a virtual avatar as if it is their own body, and a second project that explores harnessing the powers of embodiment to reduce racism and study other psychological issues.

My name is Tabitha C. Peck and I am a post-doctoral researcher at the Event Lab in Barcelona, Spain working with Professor Mel Slater. I received my PhD from The University of North Carolina at Chapel Hill under the supervision of Professors Henry Fuchs and Mary C. Whitton. My PhD research focused on locomotion interfaces in virtual environments and enabling people to physically walk in small spaces while walking in much larger virtual spaces. I am currently working in the European project, Virtual Embodiment and Robotic Re-Embodiment (VERE), and my current research focuses on the psychological effects of embodiment in virtual environments. My research interests include immersive virtual environments, virtual embodiment, human-computer interaction, 3D user interfaces, locomotion, navigation, system design and evaluation, and human perception.