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The relation between visualization size, grouping, and user performance

Connor C. Gramazio, Karen B. Schloss, David H. Laidlaw
2014 IEEE Transactions on Visualization and Computer Graphics  
Both Experiment 1 and 2 asked participants to search for a unique target in colored visualizations to test how the grouping, quantity, and size of marks affects user performance.  ...  how search performance relates to self-reported difficulty in finding the target for different display types; and (3) we present design guidelines based on our findings to facilitate the design of effective  ...  We would also like thank Lane Harrison, Bill Prinzmetal, Ani Flevaris, and our reviewers for their helpful input on this research.  ... 
doi:10.1109/tvcg.2014.2346983 pmid:26356909 fatcat:hw7dupltvrbsndye2phpnm2mo4

Low vision

Julie A. Jacko, Armando B. Barreto, Gottlieb J. Marmet, Josey Y. M. Chu, Holly S. Bautsch, Ingrid U. Scott, Robert H. Rosa
2000 Proceedings of the fourth international ACM conference on Assistive technologies - Assets '00  
The low vision users have been grouped according to the severity of their vision loss and then compared to fully sighted individuals, with respect to cursor movement efficiency.  ...  Results revealed that as the size of the icons on the computer screen increased, so did the performance of the fully sighted participants as well as the participants with AMD.  ...  This research was supported by grants awarded to the first author (BES-9714555 and BES-9896304) and the first and second authors (SBR-9871252) from the National Science Foundation.  ... 
doi:10.1145/354324.354327 dblp:conf/assets/JackoBMCBSR00 fatcat:jotgx46vevbljbl67tutrad32q

The effects of 'ecstasy' (MDMA) on visuospatial memory performance: findings from a systematic review with meta-analyses

Philip N. Murphy, Raimondo Bruno, Ida Ryland, Michele Wareing, John E. Fisk, Catharine Montgomery, Joanne Hilton
2012 Human Psychopharmacology: Clinical and Experimental  
Given the networked nature of processing for spatial and non-spatial visual information, future scanning and imaging studies should focus on brain activation differences between ecstasy users and non-users  ...  To review performance differences, with meta-analyses, between ecstasy (MDMA) users and non-users on a wider range of tasks requiring processing of visual/spatial information than in our previous narrative  ...  However, these findings are based on group sizes of eight former users and seven continuing users.  ... 
doi:10.1002/hup.1270 pmid:22389076 fatcat:ulonuz6jebgg5fwy2ytluc54lq

Automatic Discovery of Association Paths in Relational Databases Using Software Visualization

Haider Ali Ramadhan
2005 Journal of Computer Science  
between the relations increases.  ...  The evaluation also showed that by using our visual framework such time is negligible and tends to be static. BACKGROUND Large relational databases are inherently complex.  ...  Our results show that the users in the Visual group took on average 21 seconds to perform this task.  ... 
doi:10.3844/jcssp.2005.376.380 fatcat:nq3v2fgndjag5nm7lot3b6t5be

Cognitive comparison of 3D interaction in front of large vs. small displays

F. Tyndiuk, G. Thomas, V. Lespinet-Najib, C. Schlick
2005 Proceedings of the ACM symposium on Virtual reality software and technology - VRST '05  
The main results of our experimentation are the following: first, not all users benefit similarly from the use of large displays, and second, the gains of performance strongly depend on the nature of the  ...  To explain these results, we borrow some tools from cognitive science in order to identify one cognitive factor (visual attention) that are involved in the difference of performance that can be observed  ...  To better understand the interaction effect between display size and visual attention, we performed a comparison of performances (Student T-test) between the two groups of subjects (low and high visual  ... 
doi:10.1145/1101616.1101641 dblp:conf/vrst/TyndiukTLS05 fatcat:f3gim6vxkzanzaxpljuhfwyary

The Influence of the Device on User Performance in Handheld Augmented Reality

Silvio R. R. Sanches, Marcio A. Oizumi, Claiton Oliveira, Antonio C. Sementille, Cléber G. Corrêa
2019 Journal of Interactive Systems  
performance when the device is larger and (ii) we demonstrated the age of the participant was also a good indicator of the user performance in AR applications.  ...  Although such devices provide the required computer power, the size or weight of some of them may become a barrier to user performance, mainly when the interaction is by the touch on the screen.  ...  ACKNOWLEDGMENT The authors would like to thank the São Paulo Research Foundation (FAPESP), process number 2017/06619-3.  ... 
doi:10.5753/jis.2019.718 fatcat:zc3i5r7pkvcsxgzjnrllb22ho4

Beyond visual acuity

Beth Yost, Yonca Haciahmetoglu, Chris North
2007 Proceedings of the SIGCHI conference on Human factors in computing systems - CHI '07  
Participants performed various information visualization tasks using display sizes with a sufficient number of pixels to be within, equal to, or beyond visual acuity.  ...  Results showed that performance on most tasks was more efficient and sometimes more accurate because of the additional data that could be displayed, despite the physical navigation that was required.  ...  This study was also supported and monitored by the Advanced Research and Development Activity (ARDA) and the National Geospatial-Intelligence Agency (NGA) under Contract Number HM1582-05-1-2001.  ... 
doi:10.1145/1240624.1240639 dblp:conf/chi/YostHN07 fatcat:evqjxbrmlrcadccfz4qbnaoc3a

The Perceptual Scalability of Visualization

Beth Yost, Chris North
2006 IEEE Transactions on Visualization and Computer Graphics  
It appears that, for the visualizations selected for this study, the relative comparison between designs is generally consistent between display sizes.  ...  To answer these questions we performed a controlled experiment on user performance time, accuracy, and subjective workload when scaling up data quantity with different space-time-attribute visualizations  ...  This study was also supported and monitored by the Advanced Research and Development Activity (ARDA) and the National Geospatial-Intelligence Agency (NGA) under Contract Number HM1582-05-1-2001.  ... 
doi:10.1109/tvcg.2006.184 pmid:17080807 fatcat:3ocqov5o5vgurlmhezjafz77mi

Blind People and Mobile Keypads: Accounting for Individual Differences [chapter]

Tiago Guerreiro, João Oliveira, João Benedito, Hugo Nicolau, Joaquim Jorge, Daniel Gonçalves
2011 Lecture Notes in Computer Science  
Results show that different capability levels have significant impact on user performance and that this impact is related with the device and its demands.  ...  This adaptation is not always at the user's reach. One neglected group is the blind. Age of blindness onset, age, cognitive, and sensory abilities are some characteristics that diverge between users.  ...  As an example, several text-entry systems are based on multi-tap approaches where the user is able to see both the relation between keys and letters (visual feedback from the physical or virtual keys),  ... 
doi:10.1007/978-3-642-23774-4_8 fatcat:n4cqpsuflvb2tnueawfrq4si6e

Visual Grouping in Menu Interfaces

Duncan P. Brumby, Susan Zhuang
2015 Proceedings of the 33rd Annual ACM Conference on Human Factors in Computing Systems - CHI '15  
When menus were semantically organized, having visual grouping cues delineate the boundaries between large semantic groups resulted in the fastest search times.  ...  Menu interfaces often arrange options into semantic groups. This semantic structure is then usually conveyed to the user by supplementary visual grouping cues.  ...  ACKNOWLEDGEMENTS This work was supported by the UK Engineering and Physical Sciences Research Council grant EP/G059063.  ... 
doi:10.1145/2702123.2702177 dblp:conf/chi/BrumbyZ15 fatcat:lwfrtzhrpfd3rcmrg46vypb2la

Impact of group size on spatial structure understanding tasks

Taylor Sando, Melanie Tory, Pourang Irani
2011 2011 IEEE Pacific Visualization Symposium  
Regardless of group size, participants performed better when the display was presented in the animation condition instead of the multiple static views, except when large groups needed to relate the visualization  ...  We summarize our results in terms of Steiner's model for explaining the effects of group size and task characteristics on group performance.  ...  ), and how the effects of group size might vary depending on the visual representation.  ... 
doi:10.1109/pacificvis.2011.5742379 dblp:conf/apvis/SandoTI11 fatcat:ir4ocxgkbfeunkitjjxepv7kqq

TagClusters: Semantic Aggregation of Collaborative Tags beyond TagClouds [chapter]

Ya-Xi Chen, Rodrigo Santamaría, Andreas Butz, Roberto Therón
2009 Lecture Notes in Computer Science  
Based on the semantic analysis of the collaborative tags in, the semantic similar tags are clustered into different groups and the visual distance represents the semantic similarity between tags  ...  However it has some instinct problems such as linguistic issues, high semantic density and poor understanding of hierarchical structure and semantic relation between tags.  ...  We would like to thank the participants of our user study.  ... 
doi:10.1007/978-3-642-02115-2_5 fatcat:6sh3ossqyfcufjolbfn3clhjbm

The Effect of Dyslexia on Searching Visual and Textual Content: Are Icons Really Useful? [chapter]

Gerd Berget, Frode Eika Sandnes
2015 Lecture Notes in Computer Science  
There were no significant differences between the user groups on visual tasks.  ...  This study addresses the search performance of 21 users with dyslexia and 21 controls in textual versus visual displays. The aim was to investigate whether visual content enhance search performance.  ...  The authors are grateful to the participants for their helpful cooperation and to Dyslexia Norway for assisting with recruiting students.  ... 
doi:10.1007/978-3-319-20684-4_59 fatcat:cxrhth75fjeincq3pnqjfarube

Visual Analytics on Large Displays: Exploring User Spatialization and How Size and Resolution Affect Task Performance

Gokhan Cetin, Wolfgang Stuerzlinger, John Dill
2018 2018 International Symposium on Big Data Visual and Immersive Analytics (BDVA)  
There is thus a need for additional studies to analyze the impact of LHRD size and display resolution on content spatialization strategies and Visual Analytics task performance.  ...  Previous work has identified the benefits of LHRDs for Visual Analytics tasks, where the user is analyzing complex data sets.  ...  the relations between objects into the visual (tab) structure.  ... 
doi:10.1109/bdva.2018.8534027 dblp:conf/bdva/CetinSD18 fatcat:3j2uh6uttnaand4z5dfefmixu4

Evaluating the Efficiency of Typographic Design: Gender and Expertise Variation

Rasha Deeb, Kristien Ooms, Valerie Vanopbroeke, Philippe De Maeyer
2013 The Cartographic Journal  
Related to the size, shape, orientation, and texture of the labels, a number of significant differences (P<0.05) and trends were located.  ...  Differences in efficiency between males and females, on the one hand, and between novices and experts, on the other hand, were also described statistically.  ...  Variations in size correspond to variations in performance according to both the gender group and the expertise group.  ... 
doi:10.1179/1743277413y.0000000037 fatcat:bxhmfg5csneazhkcnfhmzcsxvm
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