on Advice giving Presentations
Winter 2008 Urs Hengartner
University of Waterloo
Goal
Give you some advice that will be useful for your HoTCCS presentations (and for your presentations in general) Will use some slides from Fall 2006 HoTCCS presentations to demonstrate possibilities for improvement
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General Advice Preparation
Concentrate on (some) important points
Don't present every single detail Look at presentation review form
Target your talk at your audience
Maybe present additional background information Give guidance (e.g., motivation/overview slides) Especially if you are a nonnative English speaker At least twice, but don't over practice Memorize first few slides
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Practice your talk
Urs Hengartner
General Advice During the Talk
Face your audience and use feedback from it
Don't read off slides Don't mumble Watch your hands Watch the clock
Are people looking confused? Are they falling asleep? Repeat questions You can delay a question till later/the end Unless it's a clarification question
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Preserving Privacy in Environments with LocationBased Applications
Ginger Myles, University of Arizona Adrian Friday, Lancaster University Nigel Davies, University of Arizona and
Lancaster University
Identify Yourself
Give your name on the title side
Emphasize if multiple authors You want your audience to remember you Alice, Bob, and Carol Alice Collaboration with Bob and Carol
Examples:
Maybe repeat your name on each slide
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Security Issues
Security issues of wireless networking
Availability Authenticity Integrity Confidentiality
A concrete example of a thermometer
Put Page Numbers on Slides
Makes it easier for your audience to write down and ask questions
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Authentication by Certificate Chain
VM
ENDORSE(cert-req) cert Certificate chain (hashes, application data , public keys) May also send a certificate from its software vendor
Remote Party
TVMM
ENDORSE(cert-req) cert
Boot loader
ENDORSE(cert-req) cert
Firmware
ENDORSE(cert-req) cert
Hardware
05/01/09
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Use Large Fonts
People sitting in the last row should still be able to read the text on your slides Use fonts of size at least 20 points
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Privacy: Canada
Personal Information Protection and Electronic Documents Act
Implementation:
Very much as EU Directive Requires consent of the subject Supply a person with a product/service even in the case of refusing 2001 applied to federally regulated industries (airlines, banking, broadcasting) 2002 health sector 2004 any that organization collects personal info
05/01/09
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Use Fonts Without Serifs
This is difficult to read (Times New Roman) This is easier to read (Verdana) But don't use Comic Sans MS
Some people really hate it, and you don't want to annoy your audience
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Important Tenets of CAPTCHAs
Code and database public. Randomness unknown. Some humans probability of success very high. AI problem "hard" < human success. Humans can take as long as they like; programs have time limits.
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Watch Punctuation
Only complete sentences have full stop at the end If you don't want to worry about punctuation, just leave it away entirely
But be consistent
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Security Objective
Uniqueness
Use a unique password for each site.
Resistance
Resist offline dictionary attacks on user-chosen secrets.
Adaptive
Adapt to the development of faster computers.
Computed Password
Avoid storing passwords in long-term storage..
Break the habit of entering passwords into webpages
No centralized dependency.
Avoid introducing a centralized dependency.
Phishing resistance
Resist attacks based on fake website login forms
Websites identification
Help the user reliably identify websites
Resist attacks based on imitating the browser UI
Resist attacks based on imitating the browser UI.
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Limit Number of Lines
Don't crowd your slides About 1012 lines of text
Goes along with font size
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Don't Use Filler Slides
Don't present slides that you don't expect your audience to read anyway What's the point?
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05/01/09Urs Hengartner
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Each Slide Needs a Message
Don't expect your audience to find message itself This is especially important for slides showing graphs For example, give message in the title
Also, make sure to explain graphs thoroughly
"Algorithm Foo improves latency by 10%" is much more useful than "Results"
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The Results of Wishlist Attacks
100%
Spoof Rate by Wish-list Attack
05/01/09
80% 60% 40% 20% 0% N eutral Information Toolbar SSL Verification Toolbar System D ecision Toolbar 45% 38%
33%
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Miscellaneous
Don't use 3D if there is no need Use consistent way for emphasizing
This finding is important, so is this one and that one
A picture often explains a concept more easily than many words Be careful about color schemes, animations,... Spell check your slides, check your grammar
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Miscellaneous (cont.)
Be polite
"Thank you for your attention." "That's a good point. Bla bla..."
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