Discussion Class 8
Informedia
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Discussion Classes
Format:
Question
Ask a member of the class to answer
Provide opportunity for others to comment
When answering:
Give your name. Make sure that the TA hears it.
Stand up
Speak clearly so that all the class can hear
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Question 1: Multi-modal
In discussing their work, the Informedia team often use the
term "multi-modal".
(a) What does this term mean?
(b) How does it apply in information retrieval?
(c) Give examples of modes used by Informedia.
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Question 2: Speech recognition and
retrieval performance
What does the following graph tell us?
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Question 3: Browsing
(a) Informedia provides multiple levels of abstraction and
summarization. Why?
(b) Describe the function of each of the following:
i visual icons
ii one-line headlines
iii film strip views
iv video skims
v transcript following of audio track
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Question 4: User interface concepts
Define and discuss the following concepts:
(a) Collages
(b) Semantic zooming
(c) Results set
(d) Named faces
(e) Skimming
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Question 5: Image understanding
What role does image understanding perform in each of the
following in Informedia?
(a) scene break detection (icon selection, film-strip and
skimming, segmentation)
(b) image similarity matching
(c) camera motion and object tracking
(d) video-OCR
(e) face detection and association
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Question 6: Scalability
Throughout the article there are mentions of scale.
(a) What has the project done to evaluate scalability?
(b) What are the weaknesses that might prove difficult on a larger
scale?
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Question 7: Overall
Informedia had the following objectives:
(a) retrieval performance in the presence of inaccuracy and
ambiguity
(b) approximate match in meaning and visualization
(c) presentation and reuse of video content as a new data
type with space and time constraints
(d) interoperability in the presence of restricted use
intellectual property and the absence of data and protocol
standards.
How well has each been achieved?
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