Special Lectures for 2009  

2008 /   2009  /   2010 /   2011
1. Special Lectures 1           2. Special Lectures 2


1. Special Lectures 1 forInformation Electronics Systems
          (Special Lectures 1 for Information Systems in GSIS)
May 8 (FRI) 8:50 - 12:00           【Prof. Takeshi Tokuyama】 
          Graduate School of Information Science
Theme Analysis of Geometric Disctrete Structure and Design of Efficient Algorithms
May 29 (FRI) 8:50 - 12:00           【Prof. Jyunichi Kushibiki】 
          Graduate School of Electrical and Communication Engineering
Theme A New Materials Characterization Technology by Super-Accurate Ultrasonic Measurements
Jun. 12 (FRI) 8:50 - 12:00           【Prof. Yoiti Suzuki】
          Research Institute of Electrical Communications
Theme Clarification of the Sense of Presence and its Applications to Advanced Acoustic and Multi-Modal Information Systems
Jun. 19 (FRI) 8:50 - 12:00          【Prof. Hiroaki Muraoka】
          Research Institute of Electrical Communications
Theme Terabit Perpendicular Magnetic Recording for High Capacity Storage Systems
Jun. 26 (FRI) 8:50 - 12:00           【Prof. Kunio Sawaya】
          Graduate School of Electrical and Communication Engineering
Theme Multifunctional Antennas for High-Speed Wireless Communications
Jul/ 10 (FRI) 13:00 - 16:10          【Prof. Takahiro Hanyu】
          Research Institute of Electrical Communications
Theme Fundamental Technologies of High-Performance VLSI Processor for Multimedia Applications
2. Special Lectures 2 for Information Electronics Systems
            (Special Lectures for Information Systems in GSIS)      
Apr. 22 (WED) 13:00 - 17:50     「Lectures on Multi-modal Perception」
      【Prof. Charles Spence】    Oxford University    (Theme 1,3)
      【Prof. Jean Vroomen】    Tilburg University    (Theme 2)
          Large Conference Room, 4F, No.2 Building,
            Research Institute of Electrical Communications
Theme 1 Driving by the seat of your pants! - A Multisensory Approach to capturing driver attention  (13:00-14:30)
Abstract Humans are inherently limited capacity creatures; that is, we are able to process only a restricted amount of sensory information at any given time. It should come as little surprise then that ‘driver inattention’ represents one of the leading causes of car accidents. What’s more, these attentional limitations are currently being exacerbated by the increasing availability of complex in-vehicle technologies, such as navigation systems, cellular phones, etc. The development of new sensor technologies means that your car will soon know that you are about to crash even before you do. However, potential legal issues preclude the implementation of automated control (e.g., braking) systems in commercial vehicles. The problem therefore becomes one of determining how best to alert drivers to potential road dangers while minimizing the incidence of false alarms (which drivers find annoying). I will review traditional approaches to warning signals design, and then describe a number of recent laboratory- and simulator-based studies detailing a novel brain-based approach to the design of auditory, tactile, olfactory, and multisensory warnings signals. The aim of this research is to develop a new class of multisensory warning signals that can direct attention to the appropriate external location while simultaneously priming the appropriate behavioral response on the part of the driver. Such signals offer the potential for improving driver behavior in potentially dangerous situations and so reducing the incidence of road traffic accidents. Finally, I will discuss some of the potential limitations that need to be considered when one starts to think about utilizing the body surface to present tactile information displays.
Theme 2 Intersensory Timing  (14:40-16:10)
Abstract Observers can perceive synchrony between the various senses (e.g., vision, audition, touch) despite naturally occurring timing differences. A substantial amount of research has examined how the brain accomplishes this. I will discuss several issues about intersensory timing and discuss key factors that affect the point of subjective simultaneity and sensitivity to asynchronies. I will also discuss multisensory effects on temporal perception, like temporal ventriloquism.
Theme 3 A multisensory approach to product design  (16:20-17:50)
Abstract The last few years has seen a growing realization amongst scientists that human perception is inherently multisensory. In particular, a rapidly growing body of research now highlights the existence of important connections between the human senses of sight, hearing, touch, smell, and taste. One consequence of the multisensory nature of our perceptual experience is that changing what a person sees can change what they hear, it can also change what they feel when they touch or use a product, and even what they experience when they eat a particular food. Similarly, research now suggests that changing what a product sounds like, even what it smells like, can also change how it will be perceived, evaluated, and ultimately used. In this talk, I will illustrate how the growing understanding of the rules governing multisensory perception (derived from the field of cognitive neuroscience) can be used to influence the design of a whole range of different products, including everything from mobile phones and vibrating seatbelts (warning signals) in cars, to electric toothbrushes and sonic headphones to improve the dining experience in restaurants. By the end, I hope to have convinced you that a better understanding of the human mind (and the rules used to perceive and to integrate multisensory cues) can lead to the better design of multisensory products, foodstuffs, interfaces, and environments.
Introduction to Acoustics (a series of Lectures - Total seven)
             【Dr. Densil Cabrera, University of Sydney】
              Place: N308, No.1 Building
                            Research Institute of Electrical Communications
          Contact to: Assoc. Prof. Yukio IWAYA iwaya(at)riec.tohoku.ac.jp
Theme Introduction to Acoustics     −Acoustics, Audio and Sonification−

This series of lectures aims to develop an understanding of acoustics and audio in relation to the human listener. Five basic topics are introduced, each with a focus on how they relate to humans: acoustics, signal processing, psychoacoustics, spatial hearing and audio systems. In acoustics, we focus on how sound behaves in the human environment, including the effects of room acoustics and noise. In audio signal processing, we overview basic tools of digital audio. In psychoacoustics, we introduce the theory of loudness and other psychoacoustical parameters. In spatial hearing, we examine the mechanisms for sound localization and other spatial percepts. In audio systems, we examine basic audio systems, and how such systems can be evaluated. The final two lectures examine how the principles from the earlier lectures can be applied in sonification design - which is the representation of data to people using non-speech audio. The lectures may be particularly useful for students who have an interest in human application of sound, acoustics and audio systems.

Oct. 14 1. Introduction to Acoustics                     16:20 - 17:50
Oct. 21 2. Basic Audio Signal Processing          14:40 - 16:10
Oct. 21 3. Introduction to Psychoacoustics          16:20 - 17:50
Nov. 4 4. Introduction to Spatial Hearing          14:40 - 16:10
Nov. 4 5. Introduction to Audio Systems and Audio Rendering     16:20 - 17:50
Nov. 18 6. Introduction to Sonification                    14:40 - 16:10
Nov. 18 7. Case Study - Sonification of Sound     16:20 - 17:50
Fundamental and Applied Optimization Techniques for Communication Networks
      A series of Lectures - Total three for one day (January 25)
                 Reference 1  Reference 2
       【Dr. Danny Tsang, Hong Kong University of Science and Technology】
              Place: Room 103, Research Building 1, Aobayama Campus,
                            Electro-related Graduate School of Engineering
          Contact to: Prof. Nei Kato, kato(at)ecei.tohoku.ac.jp
Theme Fundamental and Applied Optimization Techniques for Communication Networks

Research in communication networking is about efficient sharing of network resources such as link bandwidth and router buffer space. The research problem can be formulated as an optimization problem to achieve optimal performance where the performance metric can be delay, throughput, fairness, etc. The complexity of solving the optimization depends on whether the problem is linear or non-linear, constrained or unconstrained, convex or non-convex, etc. In this lecture series, linear programming (LP) will first be introduced since many network optimization models actually are special types of linear programming problems. A remarkably efficient solution technique, the simplex method, will be described. The concept of duality and its many important ramifications in linear programming will also be discussed since the relationships between the dual problem and the original primal problem prove to be extremely useful in many situations. The second part of the lecture will introduce non-linear programming (NLP) since some network optimization problem is non-linear. The optimality conditions, known as the Karush-Kuhn-Tucker (KKT) conditions will be discussed and the concept of duality will also be introduced. Applications of LP and NLP with specific examples in network optimization will be illustrated. The first application is introduced through the network flow problem which is formulated as a linear programming problem. The third part of the lecture series will continue to discuss about applications specific to network optimization. The example will be drawn from the bandwidth sharing problem. The concept of fairness and Pareto efficiency will be introduced. The optimal bandwidth sharing problem will be formulated as a Network Utility Maximization (NUM) problem. Through the KKT conditions and the duality theory, a distributed method to obtain the optimal solution will be presented to illustrate the important application of duality theory. Students will have the opportunity throughout the course to use the optimization solver, Lingo, to solve some of problems discussed in the course.

Jan. 25
10:30 -       12:00
Lecture 1: LP Optimization
     1-1. Introduction to Linear Programming
     1-2. The Simplex Method
     1-3. Application of Duality Theory
     1-4. Complementary Optimal Solution Property
     1-5. Special LP Formulations
Jan. 25
13:00 -       14:30
Lecture 2: NLP Optimization and LP Applications
     2-1. Introduction to Non-Linear programming
     2-2. Karush-Kuhn-Tucker (KKT) Conditions
     2-3. Duality
     2-4. Network Flow Problem
Jan. 25
14:40 -       16:10
Lecture 3: Network Optimization Applications
     3-1. Bandwidth Sharing Problem
     3-2. Network Utility Maximization (NUM)
     3-3. Dual Decomposition