To reduce the intrusive interaction and workload for the product recommendations, we seek implicit methods to indicate users' preferences and recommend desirable products on the interface automatically. In this paper, we validate our approach with interactive genetic algorithm to compute fitness based on the eye-movement data metrics. And construct the adaptation strategies for content and layout design on the user interface. A digital camera recommendation prototype is proposed, and in the user study, we find that users can get interested products information with less physical effort and more satisfactions.
Hydrocarbon resources in low-permeability sandstones are very abundant and are extensively distributed. Low-permeability reservoirs show several unique characteristics, including lack of a defi nite trap boundary or caprock, limited buoyancy effect, complex oil-gas-water distribution, without obvious oil-gas-water interfaces, and relatively low oil (gas) saturation. Based on the simulation experiments of oil accumulation in low-permeability sandstone (oil displacing water), we study the migration and accumulation characteristics of non-Darcy oil flow, and discuss the values and influencing factors of relative permeability which is a key parameter characterizing oil migration and accumulation in low-permeability sandstone. The results indicate that: 1) Oil migration (oil displacing water) in lowpermeability sandstone shows non-Darcy percolation characteristics, and there is a threshold pressure gradient during oil migration and accumulation, which has a good negative correlation with permeability and apparent fluidity; 2) With decrease of permeability and apparent fluidity and increase of fluid viscosity, the percolation curve is closer to the pressure gradient axis and the threshold pressure gradient increases. When the apparent fl uidity is more than 1.0, the percolation curve shows modifi ed Darcy fl ow characteristics, while when the apparent fluidity is less than 1.0, the percolation curve is a "concaveup" non-Darcy percolation curve; 3) Oil-water two-phase relative permeability is affected by core permeability, fluid viscosity, apparent fluidity, and injection drive force; 4) The oil saturation of lowpermeability sandstone reservoirs is mostly within 35%-60%, and the oil saturation also has a good positive correlation with the permeability and apparent fl uidity.
We study eye gaze movement behavior during paper reading and generate a series of annotations from a user's reading features: gray shading to indicate reading speed, borders to indicate frequency of re-reading, and lines to indicate transitions between sections of a document. Through a user study, we validate that our SocialReading system that shares teachers' gaze data for an academic paper can improve students' reading comprehension of that paper.
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