Download - iMinds The Conference 2012: Lieven de Marez
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Future Media Technologies- The user perspective
Prof. dr. Lieven De MareziMinds-MICT-UGentDigital Society dept.
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How come it goes so slowly when it goes so fast?
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Challenge 1: monitoring adoption & use increasing # multiscreen households
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2012: we crossed ‘the chasm’ towards a multiscreen society (ito adoption)
Laptop & DTV > 80%flatscreen TV 77%tablet 27% (13% in 2011)smartphone 40% (~mobile data subscription)
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Audience segmentation N: 1500, AV content CONTENT
x DEVICEx CONTEXT
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47%
26%
27%
59%12%
29%
57%
14%
29%Potential for 2nd screen? VRT N: 245 tablet users
6/10
1/10
3/10
Challenge 1: monitoring adoption & use use patterns in multiscreen households
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N: 245 tablet users Low use for online video/live TV on tablet TV is relaxing > demanding Distraction > interaction
Problem 1: awareness Problem 2: QoS - QoE
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Challenge 1: monitoring having a 2nd screen ≠ using it as 2nd screen
Challenge 2
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4 scenarios
Preference for fluent video playback, even if this means lower
video quality
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Challenge 2: What determines Experience? Bridging QoS-QoE gap & Reveal tipping points
De Pessemier, T., De Moor, K., Joseph, W., De Marez, L. and Martens, L. (2012, early access article). Quantifying Subjective Quality Evaluations for Mobile Video Watching in a Living Lab Context. IEEE Transactions on Broadcasting, Doi: 10.1109/TBC.2012.2199590
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Suppose you revealed tipping points for different QoS-QoE relations for different profiles ….
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Challenge 3: aggregation in the cloud aggregation in a cloud-based QoE agent
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What people say … + what people do … (logs,
context, QoS, …) + what people have done …
Increased user concern : ‘control’ over profile …
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Challenge 4: big data profiling user control over profiling
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Future Media Technologies?
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Dunno … Let’s ask iMinds