good research presentations · why should the audience care? you need to show solutions / ideas not...

© author(s) of these slides including research results from the KOM research network and TU Darmstadt; otherwise it is specified at the respective slide

22-Jan-18

Prof. Dr.-Ing. Ralf Steinmetz

KOM - Multimedia Communications Lab

Template all v.3.4

ATFIR_03_Workshop_Presentations___v3___160117.pptx

Good Research Presentations

Advanced Topics in Future Internet Research

Seminar Multimedia Communications I/II

Björn Richerzhagen, Dr. Ing.

Nils Richerzhagen, M.Sc.

Manisha Luthra, M.Sc.

[email protected]

Feel free to grab a coffee before we start!

KOM – Multimedia Communications Lab 2

What do you need to transport to the audience?

What tools do you have?

▪ Your slides

▪ Style: template, usage of elements

▪ Content: motivation, approach, results

▪ Your voice

▪ Presentation style, speech

▪ How you stand, walk, look, gesture, ...

▪ The discussion

Examples – Dos and Don'ts

Goal of Today’s Workshop


...in a scientific presentation? Ideas?

You need to motivate a problem

▪ Why is it relevant?

▪ Why should the audience care?

You need to show solutions / ideas

▪ Not only your own solution *

▪ In a way that your audience can follow

You need a discussion

▪ Provide a conclusion and points for discussion (e.g., outlook)

* In the scope of the seminar, you do not present own solutions, as you are conducting a survey.

What do you Need to Transport...


20 minutes to

▪ Say hello

▪Motivate a problem

▪ Introduce your methodology

▪Discuss related works

▪Discuss your solution

▪Show evaluation results

▪Wrap up your findings

▪Highlight some future directions

What do you consider to be the

most important point?

Items in grey are not required in the seminar presentations (survey-style)

Limitation: Time!


Do not lose the audience

Why am I listening to this talk?

What problem is he/she trying to solve?

What’s the point now?

I don’t get it.

Boooring.

Golden Rule


What do you need to transport to the audience?

What tools do you have?

▪ Your slides

▪ Style: template, usage of elements

▪ Content: motivation, approach, results

▪ Your voice

▪ Presentation style, speech

▪ How you stand, walk, look, gesture, ...

▪ The discussion

Examples – Dos and Don'ts

Goal of Today’s Workshop


Let’s watch a movieyoutube.com/watch?v=lpvgfmEU2Ckyoutube.com/watch?v=8S0FDjFBj8o


Your Slides

Inspired by “Avoid Death by PowerPoint (TEDx by David JP Phillips)”


Use the Template!

What are key elements of a template?


The title

▪Should contain the take-home

message of the current slide

▪Do not use generic titles

(e.g.: motivation, related work)

▪Why?

Colors

▪ Stick with very few colors

▪Use them consistently for the

same purpose – why?

Some corporate design stuff

▪No way to get rid of it, so just

leave it untouched...

Page number

▪ Important for later discussion

Use the Template!


One Message per Slide


Keep the number of objects on your slide low – why?

Counting objects (+500% cognitive resources) vs. seeing

The Magical Number 6

http://tinyurl.com/k29wjmz

Cognitive Resources Fatigue

Counting Counting Seeing


Point 1

Point 2

Point 3

Point 4

Point 5

Point 6

Point 7

Point 8

Point 9

Point 10

Size


Eye Contraction – Your eyes follow big things

Size

Main point or the thing to highlightshould be the biggest


Point 1

Point 2

Point 3

Point 4

Point 5

Contrasting

Use PowerPoint build in features for highlighting


Try to keep your slides visually calm

▪ Remember the video!

Do not put too much information on a single slide

▪ Remember, one take-home message per slide title!

Use images, schematics, illustrations

▪ But only, if they have a purpose on the slide

Use animations wisely

▪ Only very simple ones (e.g., appear)

▪ Only, if they help you with your talk

▪ If you want to highlight something

(do not rely on a laser pointer...)

Disclaimer: as these slides are also intended for offline-learning, they contain more text then they would

normally need.

The less Clutter, the Better


Do you like / dislike the following motivational slides? Why?

How to Motivate your Topic?


Mobile Devices

Details[1]:iPhone 5s

4”1136x640

326ppi

Details[3]:iPad Air9.7”

2048x1536264ppi

Details[2]:Nexus 54.95”

1920x1080445ppi

Fig. 1. iPhone 5s [1] Fig. 2. Nexus 5 [2] Fig. 3. iPad Air [3]


Introduction

Mobile Share In 2012, Laptop accounts most. By 2017,Smartphones, tablets and M2M nodes will consume the most data traffic.

Source:thebookmyproject.com

Traffic Share Mobile Video generate much of the mobile traffic. Mobile Video grow at a CAGR of 75 percent between 2012 and 2017

Visual Networking Index (VNI)(1)

(1) http://www.cisco.com/en/US/solutions/collateral/

KOM – Multimedia Communications Lab 21Source: http://wirelesshealth.virginia.edu/sites/default/files/smarthome-lrg.png

Introduction to Smart Homes

The concept of smart homes is becoming increasingly popular

A smart home utilizes different sensors and actuators to control various

features such as lighting and other home appliances


What Does It Mean?

Sensor-based

▪ We are interested in approaches that can work on smart devices without any

additional hardware

▪ Thus, built-in sensors should be used mainly

Event Detection

▪ Detection of events during videography is our goal, events can be e.g. laugher,

personal highlights etc.

▪ Depending on the specific scenario/use case

User Generated Video

▪ “Me and my smartphone” – the approaches should focus

on self-made video content

▪ User Generated Video (UGV); User Generated Content (UGC)http://tinyurl.com/n4dfyb9

http://tinyurl.com/ke4xe2m


Some Tips on the Motivation-Section

Motivate “customer’s pain”

▪ Everybody should understand and “feel” the problem

▪ Give your audience a scenario (fictional)

▪ Be aware that you might need to simplify the scenario a bit

▪ Re-use the scenario within your talk, at least during the conclusion

Be carful with statistics and numbers

▪ Actually, nobody really cares if its 73% or 74.55%

Do not confuse “Motivation” with “Background Information”

State your mission

▪ E.g.: goal of your work, your approach in a nutshell, ...

Jayesh.Sarswat.Prasanna.Mahadevaswamy.talk.ppt


Do you like / dislike the following outline? Why?

How to Present your Structure?


Agenda

Introduction

▪ Publish/Subscribe Systems

▪ Mobile Ad-Hoc networks

▪ Location Awareness

▪ Publish/Subscribe in Wireless and Mobile Ad-Hoc networks

Categories

▪ Major types of Publish/Subscribe Services

▪ Commonly deployed Location Awareness schemes in Ad-Hoc networks

Challenges faced with Publish/Subscribe Services on a Mobile Ad-Hoc

Scenario


Agenda (Contd.)

Existing Publish/Subscribe Mechanisms deployed on Mobile networks

▪ STEAM - Scalable Timed Events And Mobility

▪ MobUser

▪ Pervaho

▪ LASPD - Location Aware Service Provision and Discovery

▪ An Efficient Spatial Publish/Subscribe System

Supporting Mobility with REBECA

Possible Future Course of Action

Conclusion

References


Do you Need an Outline Slide at all?

75% of outlines of BA/MA-Theses at KOM look like this:

Why not just start directly with your motivation and provide some

structure afterwards?

KOM – Multimedia Communications Lab 28Images: openclipart.org

Contribution Overview

Utilization of local infrastructure Move the cloud closer to the user

Utilization of ad hoc communication Locality of content and interest

Publish/Subscribe paradigm Abstraction for wide range of applications

Local publish/subscribe protocol adaptations Adapt to environmental conditions


Cloudlet Approaches

Virtual Machine-based Cloudlet

▪ Customized VM for each mobile application

Intermediate Cloudlet

▪ Cloudlet as pre-processor & scheduler

Ad hoc cloudlet

▪ Multiple mobile devices form a network

CloneCloud

▪ Cloning mobile device on cloudlet

Pocket cloudlet

▪ User’s mobile device acting as a cloudlet


Do you like / dislike the following slides? Why?

How to Categorize and Discuss Approaches?


Background

• Publish/Subscribe Paradigm

• Asynchronous message delivery

• Topic or Content based system

• Loose Coupling b/w Nodes

• Two ways for Location Handling:

• Pub/Sub system with location as an external attribute

• Pub/Sub system with location forwarding protocol

Topic/Content


Cloudlet Approaches

Virtual Machine-based Cloudlet

▪ Customized VM for each mobile application

Intermediate Cloudlet

▪ Cloudlet as pre-processor & scheduler

Ad hoc cloudlet

▪ Multiple mobile devices form a network

CloneCloud

▪ Cloning mobile device on cloudlet

Pocket cloudlet

▪ User’s mobile device acting as a cloudlet


VM-based Cloudlet

Main characteristics

▪ Cloudlet near to mobile device

(WLAN with high bandwidth)

▪ Mobile devices connects to cloudlet

▪ Each application gets own VM

▪ Offloading complete execution

Technology: VM-synthesis

▪ Cloudlet gets base-VM from cloud

▪ Mobile device delivers overlay VM

▪ Cloudlet launches VM instance

▪ When finished, VM is discarded


Comparison of Approaches

VM-based

Cloudlet

Intermediate

Cloudlet

Ad-hoc

cloudlet

CloneCloud Pocket

Cloudlet

Architecture

Entities mobile-cloudlet-

cloud

mobile-cloudlet-

cloud

ad-hoc network mobile-cloudlet mobile-cloud

Cloud

Connection

yes, setup

phase

yes, everytime no no yes, periodical

Offload

Granularity

coarse

(application)

fine

(component)

fine

(component)

very fine

(thread)

no offloading

(caching)

App Execution cloudlet distributed distributed distributed mobile device

Comment Stable, high

abstraction, but

little support for

mobile device

feature (e.g.

camera)

Cloudlet as pre-

processor,

drawback:

manual

partitioning of

application

Dynamic and

scalable but

hard to

establish

Automatic and

optimized

offloading, very

flexible, but

more complex

Only suitable

for data

retrieval, not

computational

applications


Sensor groups coverage

Heterogeneous Homogeneous

Different sensors, different characteristics.

For many reasons (budget, shareholders,

etc.) sometimes we can’t avoid this.

Same type of sensors.

Ideal


How to Present Related Works

Identify a categorization scheme

▪ Deployment model, targeted scenario, functional/non-functional requirements

▪ May also be an evolution of approaches over time

Introduce your scheme

▪ This is your methodology!

Highlight only the most relevant aspects

▪ E.g., key advances over prior works, smart ideas, not-so-smart ideas

▪ Do not get lost in details – otherwise, you audience could just read the paper

themselves

Provide structure

▪ Tables, or “+”/”-” bullets, or simple schematics

Jayesh.Sarswat.Prasanna.Mahadevaswamy.talk.ppt


Your Voice


Human Memory

Sentences + Speaking = Remembered by audience1 + 1 = close to 0


Watch your hands

Take a breath – include breaks, drink

Look at your audience – switch the focus

Perception


The Discussion


Ensure that you got the question

▪ Often, it is a good idea to briefly rephrase the question before answering

▪ Give a precise answer – the more to the point, the better

▪ Ask, if you need more detail: “do you refer to X?”

▪ Use your slides

▪ Take your time, do not just start babbling – first rephrasing the questions gives

you some extra seconds to think about a suitable answer

If you are asking questions

▪ Stick to one question at a time and keep it short and to the point

▪ Interrupt (politely), if the answer does not match your question

▪ Signal to the presenter if you still follow the answer (e.g., nod, say “mh”, ...)

Be Polite. Ask, if you are Unsure!


Discussion / Questions

good research presentations · why should the audience care? you need to show solutions / ideas not...

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