检索结果-内蒙古大学图书馆

When color coding backfires: A guidance reversal effect when learning with realistic visualizations

EDUCATION AND INFORMATION TECHNOLOGIES 2022年第4期27卷 4621-4636页

作者： Skulmowski, Alexander Karlsruhe Univ Educ Digital Educ Inst Informat & Digital Educ Bismarckstr 10 D-76133 Karlsruhe Germany

Digital learning increasingly makes use of realistic visualizations, although realism can be demanding for learners. color coding is a popular way of helping learners understand visualizations and has been found to aid in learning with detailed visualizations. However, previous research has shown that color coding must not always be an effective aid, and that it even may reduce retention when used with simple visualizations. This study assessed whether the presence of color coding in learning tests has an effect after having learned using a detailed visualization that either featured color cues or one that did not. The results indicate that color coding helps learners the most if the learning tests also feature color coding. Importantly, learning with color-coded visualizations and being tested without color cues leads to the worst results in retention and transfer tests. Regarding transfer, color coding in the testing visualization boosts performance regardless of the presence of color cues in the learning phase. The results of this study challenge popular perspectives aiming at optimizing learning by removing potential sources of difficulty. Depending on the learning test, it may be more effective to keep a certain level of difficulty in the learning task when learning with digital media.

关键词： Visualization Realism color coding Cognitive load Desirable difficulties

来源：评论

学校读者我要写书评

暂无评论

A new color coding scheme for easy polyp visualization in CT-Based virtual colonoscopy

A new color coding scheme for easy polyp visualization in CT...

引用

Medical Imaging 2007 Conference

作者： Chen, Dongqing Hassouna, M. Sabry Farag, Aly A. Falk, Robert Univ Louisville Dept Elect & Comp Engn Comp Vis & Image Proc Lab Louisville KY 40292 USA Vital Images Inc Minneapolis MN 55343 USA Jewish Hosp Dept Med Imaging Louisville KY 40202 USA

ISBN: (纸本)9780819466327

In this paper, we first introduce three different geometric features including shape index, curvedness and sphericity ratio, for colonic polyp detection. A new color coding scheme is designed to highlight the detected polyps, and help radiologists to distinguish them from other tissues more easily. The key idea is to place the detected polyp candidates at the same locations in a newly created polygonal dataset with exactly the same topological and geometrical properties as the triangulated mesh surface of real colon dataset, and assign different colors to the two separated datasets to highlight the polyps. Finally, we validate the proposed polyp detection framework and color coding scheme by computer simulated and real colon datasets. For sixteen synthetic polyps with different shapes and different sizes, the sensitivity is 100%, and false positive is 0.

关键词： colorectal cancer curvature-based geometric features virtual colonoscopy color coding topological and geometrical property

来源：评论

学校读者我要写书评

暂无评论

Study on color coding Requirements for See-Through Displays in Simulated Aeromarine Flight 17th

Study on Color Coding Requirements for See-Through Displays ...

引用

17th International Conference on Man-Machine-Environment System Engineering (MMESE)

作者： Xiong, Duanqin He, Qing Guo, Xiaochao Liu, Yanan Liu, Qingfeng Yao, Qin Du, Jian Bai, Yu Wang, Yanyan Inst Aviat Med PLAAF Beijing 100142 Peoples R China

ISBN: (纸本)9789811062322;9789811062315

Objective To study the color coding requirements of displayed information in see-through displays during aeromarine fight. Methods One hundred and fifteen fighter pilots participated in the experiment. In virtue of color coding experimental procedure for see-through displays information in fighters, pilots selected colors for the display elements in the route and combat flight menu. Results (1) The pilots' color coding requirements of flight course menu were that green was the main color, longtime displayed and normal information was inclined to be green, dangerous and overrun information was inclined to be red, and latent dangerous and needing pilots' attention information was inclined to be yellow. (2) The pilots' color coding requirements of combat menu were that green was the main color, longtime displayed and attackable information was inclined to be green, and unattackable and overrun information was inclined to be red. Conclusions The pilots' color coding requirements for see-through displays in aeromarine flight were that green was the main color;longtime displayed and normal and attackable information was inclined to be green;dangerous, overrun, and unattackable information was inclined to be red;latent dangerous and needing pilots' attention information was inclined to be yellow. Above conclusions were only primary, and subjective and objective researches should be conducted later, so as to deeply verify the rationality of pilots' requirements.

关键词： color coding See-through display Aeromarine flight Pilots Human factor

来源：评论

学校读者我要写书评

暂无评论

color coding the "Labyrinth": How Staff Perceived a Two-Part Intervention to Improve Wayfinding in an Adult Emergency Department

引用

HERD-HEALTH ENVIRONMENTS RESEARCH & DESIGN JOURNAL 2021年第4期14卷 429-441页

作者： Madson, Michael Goodwin, Kelsie Arizona State Univ Polytech CampusSanta Catalina Hall 251U Mesa AZ 85212 USA Med Univ South Carolina Adult Emergency Dept Charleston SC 29425 USA Med Univ South Carolina Chest Pain Ctr Charleston SC 29425 USA

Objectives, purpose, or aim: We report a two-part wayfinding intervention, considering four quality criteria (visibility, usability, efficiency and overall effectiveness) from staff perspectives. Background: Few studies to date have explored wayfinding in the Emergency Department (ED). Yet, as ED usage continues to grow, effective wayfinding in these high-stress, fast-paced environments is likely to become increasingly important. At an adult ED located in the U.S. Southeast, wayfinding has been a persistent problem. We subsequently developed a two-part wayfinding intervention: colored routes to key destinations in the ED and corresponding visitor badges. Methods: Quality criteria were formulated using the Donabedian model: visibility (structure), usability (process), efficiency (process), and overall effectiveness (outcome). Assessments consisted of staff surveys, which were distributed from March to early April 2019. Results: The strong ratings across quality criteria, added to affirmative comments from staff, provide evidence that the color coding system made a positive impact on wayfinding. Conclusions: While the results should be generalized with caution, the two-part intervention may be highly portable to other contexts. Future studies might examine the effect of colored routes alone. They might illuminate relations between structure, process, and outcomes as they relate to the assessment of wayfinding. They might also expand wayfinding quality criteria. Ultimately, such studies should improve not only the productivity but also the accessibility and user experience of the ED.

关键词： wayfinding Emergency Department quality improvement color coding surveys staff visitors

来源：评论

学校读者我要写书评

暂无评论

Bstj 45: 4. April 1966: Increasing the Memory Capacity of the Digital Light Deflector by "color coding". (Skinner, J.G.)

引用

2016年

Bstj 45: 4. April 1966: Increasing the Memory Capacity of the Digital Light Deflector by "color coding". (Skinner, J.G.) by published by

关键词： "color (skinner, april bandwidth beam bell system capacity coding color color coding deflector digital digital light light light beam light deflector light leakage memory memory plane optical optical switch optical switches system technical transmission

来源：评论

学校读者我要写书评

暂无评论

Faster Motif Counting via Succinct color coding and Adaptive Sampling

引用

ACM TRANSACTIONS ON KNOWLEDGE DISCOVERY FROM DATA 2021年第6期15卷 96-96页

作者： Bressan, Marco Leucci, Stefano Panconesi, Alessandro Univ Milan Dipartimento Informat Via Celoria 18 Milan Italy Univ Aquila Dipartimento Ingn & Sci Informaz & Matemat Via Vetoio I-67100 Laquila Italy Sapienza Univ Roma Dipartimento Informat Via Salaria 113 I-00198 Rome Italy

We address the problem of computing the distribution of induced connected subgraphs, aka graphlets or motifs, in large graphs. The current state-of-the-art algorithms estimate the motif counts via uniform sampling by leveraging the color coding technique by Alon, Yuster, and Zwick. In this work, we extend the applicability of this approach by introducing a set of algorithmic optimizations and techniques that reduce the running time and space usage of color coding and improve the accuracy of the counts. To this end, we first show how to optimize color coding to efficiently build a compact table of a representative subsample of all graphlets in the input graph. For 8-node motifs, we can build such a table in one hour for a graph with 65M nodes and 1.8B edges, which is 2,000 times larger than the state of the art. We then introduce a novel adaptive sampling scheme that breaks the "additive error barrier" of uniform sampling, guaranteeing multiplicative approximations instead of just additive ones. This allows us to count not only the most frequent motifs, but also extremely rare ones. For instance, on one graph we accurately count nearly 10.000 distinct 8-node motifs whose relative frequency is so small that uniform sampling would literally take centuries to find them. Our results show that color coding is still the most promising approach to scalable motif counting.

关键词： Graphlets motifs color coding subgraph counting graph mining

来源：评论

学校读者我要写书评

暂无评论

On the Descriptive Complexity of color coding

引用

ALGORITHMS 2021年第3期14卷 96页

作者： Bannach, Max Tantau, Till Univ Lubeck Inst Theoret Comp Sci D-23562 Lubeck Germany

color coding is an algorithmic technique used in parameterized complexity theory to detect "small" structures inside graphs. The idea is to derandomize algorithms that first randomly color a graph and then search for an easily-detectable, small color pattern. We transfer color coding to the world of descriptive complexity theory by characterizing-purely in terms of the syntactic structure of describing formulas-when the powerful second-order quantifiers representing a random coloring can be replaced by equivalent, simple first-order formulas. Building on this result, we identify syntactic properties of first-order quantifiers that can be eliminated from formulas describing parameterized problems. The result applies to many packing and embedding problems, but also to the long path problem. Together with a new result on the parameterized complexity of formula families involving only a fixed number of variables, we get that many problems lie in FPT just because of the way they are commonly described using logical formulas.

关键词： color coding descriptive complexity fixed-parameter tractability quantifier elimination para-AC(0)

来源：评论

学校读者我要写书评

暂无评论

The art of color coding for three dimensional diagnostic mapping of unusual cardiothoracic vascular abnormalities

引用

INTERNATIONAL JOURNAL OF CARDIOLOGY 2013年第3期166卷 E68-E74页

作者： Saremi, Farhood Hakim, Anoushiravan Saremi, Arvin Bai, Chester Univ So Calif Dept Radiol Image Proc Lab Los Angeles CA 90033 USA

来源：评论

学校读者我要写书评

暂无评论

Urgency-Based color coding to support visual search in displays for supervisory control of multiple unmanned aircraft systems

引用

DISPLAYS 2022年 74卷

作者： Friedrich, Max Vollrath, Mark German Aerosp Ctr DLR Inst Flight Guidance Dept Pilot Assistance Lilienthalpl 7 D-38108 Braunschweig Germany Tech Univ Carolo Wilhelmina Braunschweig Inst Psychol Dept Engn & Traff Psychol Gaussstr 23 D-38106 Braunschweig Germany

This study derives and validates a color-coding concept for system states in icon-based displays for supervisory control of multiple unmanned aircraft systems. In aviation, safe indications are typically coded with green, caution indications with amber and warnings with red. This study proposes to adjust the salience of indications according to their intended urgency. For this purpose, a numerical measure for target salience was developed based on findings from the visual search literature. The measure uses differences in color space between target, distractor and background colors to estimate target salience. The measure is computed by dividing the color difference between target and distractor by the color difference between distractor and background and multiplying the result by the division of the target-distractor and distractor-background color differences. The resulting target salience value increases when decreasing the difference between distractor and background color as well as increasing differences between target and distractor and target and background colors. The results from applying the target salience measure suggest to code safe indications with grey instead of green, caution indications with yellow and warning and advisory indications with red and cyan, respectively. Two visual search experiments were conducted to validate the target salience measure and the proposed color-coding concept. Experiment one (n = 32) was a within-subject design comparing reaction time differences between yellow and amber targets among green and grey distractors for four set size conditions. Experiment two (n = 62) was a mixed-subject design comparing reaction time differences between red, yellow and cyan targets among grey and green distractors for four set size and 18 eccentricity conditions. The results show that target saliences diminish with increasing distractor salience, which could particularly be observed for yellow targets among green distractors. Red and yel

关键词： Visual search Search efficiency color coding Display design principles Unmanned aircraft systems

来源：评论

学校读者我要写书评

暂无评论

Non-Invasive Load Identification Algorithm Based on color coding and Feature Fusion of Power and Current

引用

FRONTIERS IN ENERGY RESEARCH 2022年 10卷

作者： Xiang, Yuzhu Ding, Yifan Luo, Qiang Wang, Puyu Li, Qing Liu, Haojie Fang, Kaijie Cheng, Hanmiao Jiangsu Univ Sch Elect & Informat Engn Zhenjiang Peoples R China Nanjing Univ Sci & Technol Sch Automation Nanjing Peoples R China Jiangsu Lingchuang Elect Automat Co Ltd Zhenjiang Peoples R China Tianjin Inst Power Sources Tianjin Peoples R China State Grid Jiangsu Elect Power Co Ltd Mkt Serv Ctr Nanjing Peoples R China

In the traditional non-invasive load monitoring (NILM) algorithms, the identification accuracy is enhanced with the increased network scale while sacrificing the calculation speed, which restricts the efficiency of the load identification. In this study, a multi-feature (active/reactive power and current peak-to-peak value) fusion algorithm is proposed, which can achieve enhanced identification accuracy with a smaller network scale while maintaining the calculation speed. The features of the power and current amplitudes of the loads are transformed into the values of red-green-blue (RGB) color channels by color coding and then fused into the V-I trajectory features. After that, the true-color feature image with higher discrimination is generated and input into the convolutional neural network (CNN). The testing results on the PLAID data set indicate that in comparison with the traditional load identification algorithm, the algorithm proposed in this study performs higher identification accuracy with a smaller neural network parameter scale, which significantly improves the identification efficiency.

关键词： non-invasive load monitoring (NILM) feature fusion color channel color coding convolutional neural network true-color feature image

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：