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61.
ABSTRACTIn this article, we report on the lack of reliability of explicit user feedback and its interpretation in the light of system evaluation. It is known, that given feedback strongly depends on the situational context. But also when many contextual factors are held constant, user feedback still proves to be unreliable. This impacts the evaluation of predictive algorithms since it is not clear whether a deviation between a user response and its corresponding prediction can be seen as a flaw by the system or just as usual ‘human uncertainty’. As a result, the perspective on the evaluation of adaptive systems basically changes. The main goal of this article is to demonstrate that simply increasing the amount of explicit feedback is not the key to sustainable system design innovation, as long as that information is not appropriately evaluated. To this end, we will exploit a novel probabilistic approach of processing user feedback and identify biasing effects on accuracy metrics, error probabilities for system rankings as well as natural limitations of evaluation. Finally, we will discuss possible solution strategies and give advice for handling explicit user feedback that is associated with uncertainty. 相似文献
62.
弹序管序识别装置研究 总被引:2,自引:2,他引:0
弹序管序识别装置是多管炮立靶精度测试系统的一个子系统,当多管炮齐射连发时,该装置将从炮口射出的一连串弹丸按时间先后排队,并判明每发弹的管序本文介绍了弹序管序识别装置的方案设计和主要电路工作原理 相似文献
63.
Elizabeth Carlson 《History of Photography》2017,41(2):188-203
This article examines the production and consumption of illustrated song lantern slides. Motivated by the commercial success of Tin Pan Alley songs, slide companies began illustrating songs with live action photography in the early years of the twentieth century. Shown between reels of film, the slides were an attraction themselves and an integral part of the filmgoers’ experience. The photographic experimentation in these slides, especially that of the firm Scott and Van Altena, is surprisingly novel. They frequently use multiple photograph negatives to exaggerate spatial and scale differences or frame narrative scenes. The author concludes that the layering and scale differences frequently seen in these slides allowed the company to expedite manufacture by recycling photographic images and also appealed to a popular taste for visual tricks in modern American visual culture. Although the imagery was nostalgic and conventional, the compositions challenged the viewer to see in a new, fragmented way. The often surreal effects show that the line between avant-garde experimental photography and commercial photography was not so clearly drawn. 相似文献
64.
C. Tominski S. Gladisch U. Kister R. Dachselt H. Schumann 《Computer Graphics Forum》2017,36(6):173-200
The elegance of using virtual interactive lenses to provide alternative visual representations for selected regions of interest is highly valued, especially in the realm of visualization. Today, more than 50 lens techniques are known in the closer context of visualization, far more in related fields. In this paper, we extend our previous survey on interactive lenses for visualization. We propose a definition and a conceptual model of lenses as extensions of the classic visualization pipeline. An extensive review of the literature covers lens techniques for different types of data and different user tasks and also includes the technologies employed to display lenses and to interact with them. We introduce a taxonomy of lenses for visualization and illustrate its utility by dissecting in detail a multi‐touch lens for exploring large graph layouts. As a conclusion of our review, we identify challenges and unsolved problems to be addressed in future research. 相似文献
65.
Allan H. Fawcett Avril E. Surgenor
Zahir Bashir
Robert E. Litchfield Norman G. Todd 《Polymer》1992,33(24):5282-5293Copolymers of acrylonitrile with a furfuryl alcohol resin have been prepared by a free radical reaction, and have been characterized by n.m.r. and i.r. spectroscopy. Their t.g.a. has been performed in air and in a nitrogen atmosphere, to permit the recognition of a number of stages in the weight loss process. D.s.c., also in air and in nitrogen, has identified a number of exothermic and one endothermic process in the copolymers. Solid state cross-polarization/magic angle spinning 13C n.m.r. spectroscopy and i.r. spectroscopy has been used to obtain some insight into the chemistry of the various chemical changes, which in air are completed by combustion and in nitrogen leave a carbon. 相似文献
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