It will be a celebratory event recognizing the accomplishments of our department's undergraduate and graduate students, staff, and faculty. Be part of the celebration and enjoy some frozen treats. Hope to see you all there.

Chin-Tser Huang, University of South Carolina Abstract: Mobile Health (mHealth), which refers to the use of mobile technologies to improve the quality of health care, has attracted increasing attention thanks to the continuous growth of mobile devices and smartphones. It is desirable to integrate mHealth with Electronic Health Record (EHR), the preferred new method to store patients’ health records. However, several security properties need to be satisfied to make the integration practical, such as data privacy, fine-grained access control and scalable access between different clouds. In this talk, we first introduce latest trends of mHealth technologies and applications, and present a secure and scalable framework for EHR data sharing, which combines Identity-based Encryption and Attribute-based Encryption together to enforce a fine-grained access control scheme on EHR and to enable scalable access between multiple clouds. Bio: Dr. Chin-Tser Huang is an Associate Professor in the Department of Computer Science and Engineering at University of South Carolina at Columbia. He received the B.S. degree in Computer Science and Information Engineering from National Taiwan University, Taipei, Taiwan, in 1993, and the M.S. and Ph.D. degrees in Computer Sciences from the University of Texas at Austin in 1998 and 2003, respectively. His research interests include network security, network protocol design and verification, and distributed systems. He is the director of the Secure Protocol Implementation and Development (SPID) Laboratory at the University of South Carolina. He is the author (along with Mohamed Gouda) of the book ‘‘Hop Integrity in the Internet,’’ published by Springer in 2005. His research has been funded by DARPA, AFOSR, AFRL, and NSF. He received the US Air Force Summer Faculty Fellowship Award from 2008 to 2010, and also worked as a Visiting Faculty Researcher with Air Force Research Lab in the summers of 2011 to 2015. He served as the President of The Chinese-American Academic and Professional Association in Southeastern United States (CAPASUS) in 2014-2015. This seminar is open to anyone who is interested, not just students enrolled in the CSCE 791 class. Please consider attending.

The culmination of The Entrepreneurship Club, The College of Engineering and Computing, & The Darla Moore School of Business at The University of South Carolina CSCE 590 app creation project taught by Dr. Jianjun Hu and MGMT 473 Emerging Ventures taught by Juliana Iarossi. The event will include demos of all projects as well as a competition judged by local startup leaders. Written about in a Carolina Money article, this project commenced with a pitch night that included more than 25 pitches. The Computer Science students selected their favorite ideas and began working collaboratively with the entrepreneur to create a minimum viable product. This event will be the official showcase of what our brilliant students have worked on throughout the semester. All are welcome free of charge. Sponsorship options are available and highly encouraged for startups and entrepreneurial. More info.

COLLOQUIUM Glenn T. Starkman COO and Co-founder Soteria, LLC Cyber Security Data and Analytics How do you go from technology to entrepreneurial success? This talk will explore the nuts and bolts, including communication and networking, that go into a successful tech startup. An example of the entrepreneurial process that will be presented is the founding of Soteria. Common themes that recur among entrepreneurs will be examined. Glenn Starkman is the COO and Co-founder of Soteria, a cyber security company that consults businesses with both pre and post breach security incidents. Soteria founders are former NSA elite operatives now based in Charleston, SC. He is a graduate of Boston University with a background in Economics and Math. He is also a Board Member, Co-Founder and Angel Investor in BevBucks, Vixen Enterprises and The Code Lady.. He was previously the Managing Director and Global Head of Sales at UBS, Goldman Sachs and was previously a Partner at Sanford Bernstein, an Asset management company, as well as the Founder and CEO of Starkman Capital LLC. Glenn is also Entrepreneur in Residence at the College of Charleston and is responsible for the Tommy Baker Lecture Series in Entrepreneurial Leadership, is on The College of Charleston Board or Entrepreneurship and leads a weekly lecture series ENTR 445. From this class Glenn will share many of the themes described by speakers dating back to 2014. Glenn will be available for Q and A post his comments.

DISSERTATION DEFENSE Department of Computer Science and Engineering, University of South Carolina Candidate: Emrah Atilgan Advisor: Dr. Jianjun Hu Abstract Developing new materials have historically been time-consuming. Computational material discovery can search large design space to identify promising candidates for experimental verification. Recently, Density Functional Theory (DFT) based first principle calculation has been able to calculate many electrical and physical properties of materials, making them suitable for computational doping based material discovery. In material doping, given a base material, one can change its properties by substituting some elements with new ones or adding additional elements. In computational doping, we have a grid of atoms in a supercell, some of which can be substituted with dopant atoms. There are many possible doping positions for the doped elements in the supercell, among which the most stable supercell with the lowest free electronic energy is the one that most likely appears in experiments. So finding the most stable doped supercell configuration is the first step for computational doping, which is usually done exhaustively nowadays. For each such substitution, the Vienna Ab-Initio Simulation Package is usually used to calculate its energy and higher level physicochemical properties. Free energy calculations take about 15-30 hours for a supercell of 75 atoms for substituting two positions out of 15 with a single dopant element, and it may take days to weeks for multiple dopant elements. This is a typical optimization problem with expensive evaluation functions. Here we first developed a genetic algorithm for finding the most stable structure of the doped material with the lowest free electronic energy for a single dopant element. It can reduce the running time for computational doping by up to 75%. We used SrTiO3 perovskite as the base material and Nb as the substitution element. We also developed another genetic algorithm for multiple dopant elements. Since the search space becomes larger, the genetic algorithm works better and saves up to 85% of calculations for finding the most stable structures. Finally, we developed a genetic programming (GP) algorithm for computational doping which can simultaneously determine multiple dopant elements with different doping ratios. The simultaneous search of dopant elements and their ratios can speed up the search process for large doping spaces.

Gregory Gay, University of South Carolina Abstract: There are two key artifacts necessary to test software, the test data - inputs given to the system under test (SUT) - and the oracle - which judges the correctness of the resulting execution. Substantial research efforts have been devoted towards the creation of effective test inputs, but relatively little attention has been paid to the creation of oracles. Specifying test oracles remains challenging for many domains, such as real-time embedded systems, where small changes in timing or sensory input may cause large behavioral differences. Models of such systems, often built for analysis and simulation before the development of the final system, are appealing for reuse as oracles. These models, however, typically represent an idealized system, abstracting away certain considerations such as non-deterministic timing behavior and sensor noise. Thus, even with the same test data, the model’s behavior may fail to match an acceptable behavior of the SUT, leading to many false positives reported by the oracle. This talk will present an automated framework that can adjust, or steer, the behavior of the model to better match the behavior of the SUT in order to reduce the rate of false positives. This model steering is limited by a set of constraints (defining acceptable differences in behavior) and is based on a search process attempting to minimize a numeric dissimilarity metric. This framework allows non-deterministic, but bounded, behavior differences, while preventing future mismatches, by guiding the oracle—within limits—to match the execution of the SUT. Results show that steering significantly increases SUT-oracle conformance with minimal masking of real faults and, thus, has significant potential for reducing false positives and, consequently, development costs. Bio: Gregory Gay is an Assistant Professor of Computer Science & Engineering at the University of South Carolina. His research interests include automated testing and analysis—with an emphasis on test oracle construction—and search-based software engineering. Greg received his Ph.D. from the University of Minnesota, working with the Critical Systems research group, and an M.S. from West Virginia University. He has previously worked with NASA Ames Research Center and the Chinese Academy of Sciences. This seminar is open to anyone who is interested, not just students enrolled in the CSCE 791 class. Please consider attending.

DISSERTATION DEFENSE Department of Computer Science and Engineering, University of South Carolina Candidate: Annamaria Victoria Kish Advisor: Dr. Cilla Farkas Date: April 14, 2016 Time: 12:00 P.M. Place: Swearingen 3A75 Abstract Our aim is to provide efficient partitioning and allocation of data for web service compositions. Web service compositions are represented as partial order database transactions. We accommodate a variety of transaction types (such as read-only and write-oriented transactions) to support workloads in cloud environments. We introduce an approach that partitions and allocates small units of data, called micropartitions, to multiple database nodes. Each database node stores only the data needed to support a specific workload. Transactions are routed directly to the appropriate data nodes. Our approach guarantees serializability and efficient execution. In Phase1, we cluster transactions based on data requirements. We associate each cluster with an abstract query definition. An abstract query represents the minimal data requirement that would satisfy all the queries that belong to a given cluster. A micropartition is generated by executing the abstract query on the original database. We show that our abstract query definition is complete and minimal. Intuitively, completeness means that all queries of the corresponding cluster can be correctly answered using the micropartition generated from the abstract query. The minimality property means that no smaller partition of the data can satisfy all of the queries in the cluster. We also aim to support efficient web services execution. Our approach reduces the number of data accesses to distributed data. We also aim to limit the number of replica updates. Our empirical results show that the partitioning approach improves data access efficiency over standard partitioning of data. In Phase 2, we investigate the performance improvement via parallel execution. Based on the data allocation achieved in Phase I, we develop a scheduling approach. Our approach guarantees serializability while efficiently exploiting parallel execution of web services. We achieve conflict serializability by scheduling conflicting operations in a predefined order. This order is based on the calculation of a minimal delay requirement. We use this delay to schedule services to preserve serializability without the traditional locking mechanisms.

Come join WiC and Marie Chatfield of Square! Marie graduated recently from Rice University in Texas and moved to Silicon Valley. She’ll give a talk about how web applications work and then talk about her journey into software engineering. The meeting is Tuesday, April 12th at 6:00-7:30pm in Swearingen 2A24. There will be free pizza, Square swag, and as always, all are welcome to attend! RSVP here.

Patrick Hubbard, University of South Carolina (School of Law) Abstract: Our lives are being transformed by large, mobile, "sophisticated robots" with increasingly higher levels of autonomy, intelligence, and interconnectivity among themselves. For example, driverless automobiles are likely to become commercially available within a decade. Many people who suffer physical injuries from these robots will seek legal redress for their injury, and regulatory schemes are likely to impose requirements on the field to reduce the number and severity of injuries. This talk addresses the issue of whether the current liability and regulatory systems provide a fair, efficient method for balancing the concern for physical safety against the need to incentivize the innovation that is necessary to develop the robots. The talk provides context for analysis by reviewing innovation and robots' increasing size, mobility, autonomy, intelligence, and interconnections in terms of safety - particularly in terms of physical interaction with humans - and by summarizing the current legal framework for addressing personal injuries in terms of doctrine, application, and underlying policies. This talk argues that the legal system's method of addressing physical injury from robotic machines that interact closely with humans provides an appropriate balance of innovation and liability for personal injury. It critiques claims that the system is flawed and needs fundamental change and concludes that the legal system will continue to fairly and efficiently foster the innovation of reasonably safe sophisticated robots. Bio: Professor Hubbard has been a member of the University of South Carolina School of Law since 1973. He retired from full time teaching in 2015. He currently teaches Legal Theory and Land Use Planning. In recent years, he also taught Torts, Products Liability, Evidence, and Criminal Law. Before joining the faculty, Professor Hubbard was an associate at Mudge, Rose, Guthrie, and Alexander (New York City) and was a staff attorney with Community Legal Services Program (Austin, TX). He graduated Phi Beta Kappa from Davidson College. He received a JD from New York University School of Law and a LLM from Yale Law School. Professor Hubbard has written books on tort law and criminal law and has published dozens of articles and book chapters on criminal law, legal theory, torts, and land use planning. As a legal realist, he actively related his scholarship to the world outside the law school. For example, his interest in land use planning includes working on a drafting committee for recent amendments to the South Carolina zoning enabling act, serving as chair of the Columbia Planning Commission in the 1990s and as vice-chair of the Board of Zoning Appeals currently, and working with a taskforce revising the Columbia Zoning Code, and assisting neighborhood organizations in zoning matters. Professor Hubbard has been a visiting professor of law at University of Southampton U.K., at University of Birmingham, U.K., and at Florida Coastal School of Law. Professor Hubbard and his wife have been happily married since 1968. They have two sons, both of whom are married, and have five grandchildren. This seminar is open to anyone who is interested, not just students enrolled in the CSCE 791 class. Please consider attending.