IDC Seminar (10 Sep) An In Situ Approach for Approximating Complex Computer Simulations and Identifying Important Time Steps

Dr. Kary Myers, Statistical Sciences Group, Los Alamos National Laboratory

(Please note this is not the usual IDC seminar time, and the location is Town Hall Committee Room 3)

Presentation slides

Kary Myers

As computer simulations continue to grow in size and complexity, they present a challenging example of big data. Simulation output may exceed both the storage capacity and the available bandwidth for transfer to storage. In this talk I’ll describe an in situ approach — i.e., one that embeds calculations in the simulation itself — for efficiently approximating a complex simulation using piecewise linear fitting. This significantly reduces the data transfer and storage requirements while facilitating post processing and reconstruction of the simulation. I’ll illustrate the method with a massively parallel radiation-hydrodynamics simulation performed by Korycansky et al. (2009) to support NASA’s 2009 Lunar Crater Observation and Sensing Satellite mission.

About the Speaker:

Since 2006 Kary Myers has been a scientist in the Statistical Sciences group at Los Alamos National Laboratory. She earned her PhD from Carnegie Mellon’s Statistics Department and her MS from their Machine Learning Department. At Los Alamos she’s been involved with projects examining electromagnetic measurements, large scale computer simulations, and chemical spectra from the Mars Science Laboratory. She serves as an associate editor for the Annals of Applied Statistics and the Journal of Quantitative Analysis in Sports.

IDC seminar (4 Aug): Observer-Resistant Password Systems (ORPSs): Security versus Usability

Dr Shujun Li

Presentation slides

Abstract

Observer-resistant password systems (ORPSs, also known as human authentication against observers or leakage-resilient password systems)have been studied since the early 1990s in both cryptography and computer security contexts, but until today a both secure and usable ORPS remains an open question to the research community. The concept of ORPS can be used to cover a large family of attacks against password-based human authentication systems such as shoulder surfers, hidden cameras, man-in-the-middle, keyloggers and other malware. A key assumption of ORPS is that human users must respond to authentication challenges without using any computational devices (which are considered untrusted). In other words, the threat model behind ORPSs assumes that other than the human user’s brain, nothing is trusted. The main security requirement is to avoid disclosure of the shared secret between the human user and the verifier (i.e., password) even after a practically large number of authentication sessions observed by untrusted parties.

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IDC Seminar (3 July) – UX design for the corporate world

DATE/TIME: Friday 3 July 2015, 1400-1500h,

VENUE: Hatchcroft Building HG06

(Please note this is not the usual IDC seminar time and room)

Stephan Takken

We are spoiled with great experiences when it comes to consumer apps and software, Uber, Facebook, Spotify are fine examples of good UX design. Corporate business missed the boat on that design revolution and the creative team at Mobiquity tries to bring that consumer-level UX to the corporate world.

Speaker: Drs. Stephan Takken (Mobiquity)

People describe me as steady, calm, creative, reliable, industrious, sensible and a quick learner. I have an interest in cognitive biases and the Design Thinking method. I lead the UX design of Mobiquity Europe.

IDC Seminar (23 June): Research and Discussion on the Construction Planning of the Intelligent Campus

tao-wangDr. Tao Wang:

Associate Professor, Department of Electronic & information Engineering, WuXi City College of Vocational Technology

Presentation Slides

Abstract

In Wuxi City College, the intelligent campus construction as an example, elaborate framework has been built, including the design idea, overall architecture, construction, information standards, shared data center platform, data cleaning and integration platform, unified identity authentication platform, unified information portal platform, empty intelligent campus platform, integrated information query system, student life cycle of the business system, teacher management and service system, safety facilities, information integration, function and platform.

The project started construction in the year 2012, has been initially completed. The project team has a total of sixteen people, I am responsible for the general framework of project, feasibility studies and project development, and the preparation, reserve of new technology.

Need to expand the function: center management decision analysis system is relatively weak, does not play a role, the hope can be combined with Middlesex university technology advantage, using the visual analysis techniques of decision analysis of new design and development.