Filters








11,454 Hits in 7.6 sec

Segment-level display time as implicit feedback

Georg Buscher, Ludger van Elst, Andreas Dengel
2009 Proceedings of the 32nd international ACM SIGIR conference on Research and development in information retrieval - SIGIR '09  
The study shows that segment-level display time yields comparable results as eye-tracking-based feedback.  ...  We examine two basic sources for implicit relevance feedback on the segment level for search personalization: eye tracking and display time.  ...  CONCLUSION The results of this study show that segment-level display time can be as valuable as eye-tracking-based feedback, both concerning re-ranking of search results and query expansion.  ... 
doi:10.1145/1571941.1571955 dblp:conf/sigir/BuscherED09 fatcat:huhd5sstyjenxnbfmtthgu24r4

Integrating neurophysiologic relevance feedback in intent modeling for information retrieval

Giulio Jacucci, Oswald Barral, Pedram Daee, Markus Wenzel, Baris Serim, Tuukka Ruotsalo, Patrik Pluchino, Jonathan Freeman, Luciano Gamberini, Samuel Kaski, Benjamin Blankertz
2019 Journal of the Association for Information Science and Technology  
to generate relevance feedback from brain signals and eye movements in a realistic scenario, thus providing promising implications for future work in neuroadaptive information retrieval (IR).  ...  We contribute by demonstrating how to integrate in interactive intent modeling this inherently noisy implicit relevance feedback combined with scarce explicit feedback.  ...  Other sources of implicit feedback include eye tracking to infer a user's interest through various metrics such as fixation count, dwell time, pupil size, and scan paths (e.g., Gwizdka, 2014; Oliveira  ... 
doi:10.1002/asi.24161 pmid:31763361 pmcid:PMC6853416 fatcat:2udp6rzab5dfzfz3ousgljghp4

Image ranking with implicit feedback from eye movements

David R. Hardoon, Kitsuchart Pasupa
2010 Proceedings of the 2010 Symposium on Eye-Tracking Research & Applications - ETRA '10  
Requiring such explicit information may not be feasible in a number of cases, we consider the setting where the user provides implicit feedback, eye movements, to assist when performing such a task.  ...  We propose a novel search methodology which combines image features together with implicit feedback from users' eye movements in a tensor ranking Support Vector Machine and show that it is possible to  ...  We use a leave-one-out cross-validation for T 1 opt to obtain the optimal model for the later case which are selected based on maximum average NDCG across 10 positions.  ... 
doi:10.1145/1743666.1743734 dblp:conf/etra/HardoonP10 fatcat:nckv42dsufgxrgkhz52sagg4dy

Gaze-Based Relevance Feedback for Realizing Region-Based Image Retrieval

Georgios Th. Papadopoulos, Konstantinos C. Apostolakis, Petros Daras
2014 IEEE transactions on multimedia  
In this paper, a gaze-based Relevance Feedback (RF) approach to region-based image retrieval is presented.  ...  Primary novelties of this work are: a) the introduction of a new set of gaze features for realizing user's relevance assessment prediction at region-level, and b) the design of a time-efficient and effective  ...  Image pre-processing Prior to any user implicit feedback interpretation procedure, every image is segmented to regions and suitable low-level descriptors are extracted for every resulting segment.  ... 
doi:10.1109/tmm.2013.2291535 fatcat:g7lcchrpbfck3gezhl4cblcw5u

Comparative analysis of relevance feedback methods based on two user studies

Stephen Akuma, Rahat Iqbal, Chrisina Jayne, Faiyaz Doctor
2016 Computers in Human Behavior  
There is therefore a need to model low cost implicit indicators as a substitution for the eye gaze indicator.  ...  ., 2012) found that display time and number of visits can be used to represent users' interest in recommending electronic books.  ... 
doi:10.1016/j.chb.2016.02.064 fatcat:ucg37a2errg5jhunarlsvr5n2a

Evaluating the accuracy of implicit feedback from clicks and query reformulations in Web search

Thorsten Joachims, Laura Granka, Bing Pan, Helene Hembrooke, Filip Radlinski, Geri Gay
2007 ACM Transactions on Information Systems  
This paper examines the reliability of implicit feedback generated from clickthrough data and query reformulations in WWW search.  ...  This is in contrast to previous studies that primarily evaluated absolute feedback.  ...  One of the valuable aspects of eye-tracking is that we can determine how the displayed results are actually viewed.  ... 
doi:10.1145/1229179.1229181 fatcat:nlxsb2baprf5xgfd67bn4qktru

Emotion based Contextual Semantic Relevance Feedback in Multimedia Information Retrieval

Karm VeerSingh, Anil K. Tripathi
2012 International Journal of Computer Applications  
user wants to retrieve the information and to further investigate whether we could employ Affective Feedback as an implicit source of evidence in CSRF cycle to increase the system's contextual semantic  ...  We are proposing an Affective Feature Based Implicit Contextual Semantic Relevance Feedback (AICSRF) to investigate whether audio and speech along with visual could determine the current context in which  ...  How the user interacts with multimedia information (eye tracking, emotion, browse and navigation operations)?  ... 
doi:10.5120/8834-3052 fatcat:hvvl23mcqjfbhf2z6iecpq26pm

Eye Tracking of Occluded Self-Moved Targets: Role of Haptic Feedback and Hand-Target Dynamics

Frederic Danion, James Mathew, J. Randall Flanagan
2017 eNeuro  
Results showed that as long as 7 s after target occlusion, smooth pursuit continued to be the main contributor to total eye displacement (ϳ60%).  ...  In general, eye-tracking was less accurate under the nonrigid mapping, as reflected by higher positional and velocity errors.  ...  Post hoc analysis confirmed that whereas VE values were sim- Accuracy of eye tracking performance at the temporal level As for spatial accuracy, temporal accuracy of eye tracking decreased after target  ... 
doi:10.1523/eneuro.0101-17.2017 pmid:28680964 pmcid:PMC5494895 fatcat:57dtooxbqrhozldbmmrbmf3ap4

Abnormal neural responses to feedback in depressed adolescents

Christian A. Webb, Randy P. Auerbach, Erin Bondy, Colin H. Stanton, Dan Foti, Diego A. Pizzagalli
2017 Journal of Abnormal Psychology  
Time-domain analyses focused on ERPs linked to initial processing of negative versus rewarding outcomes (feedback-related negativity; FRN), and later, elaborative processing (late positive potential; LPP  ...  In summary, the LPP may be a sensitive probe of depressive rumination, whereas FRN-linked theta activity may represent a neural marker of hypersensitivity to negative outcomes in depressed youth.  ...  Time-Domain Analyses For time-domain analyses, EEG data were segmented in epochs beginning 200 ms before stimulus (win or loss feedback) onset and up to 1,000 ms after stimulus onset.  ... 
doi:10.1037/abn0000228 pmid:27935729 pmcid:PMC5215965 fatcat:qpkkmv37qzfsbdi2du2vo3jswy

A data-driven 3D vision feedback system for bilateral rehabilitation application

Xiang Kui, Guo Shuxiang, Song Zhibin
2012 2012 IEEE International Conference on Mechatronics and Automation  
The patients' motion posture is shown on a screen in real time to prompt their rehabilitation training.  ...  As a fully open source system, it is very appropriate to realize more economical rehabilitation trainings. Index Terms -Vision Feedback, Open Source, 3D Model, Rehabilitation.  ...  The background sampling and GUI displaying are separated into two different threads to ensure the real-time performance as possible as it can.  ... 
doi:10.1109/icma.2012.6285086 fatcat:qgg65jbtuzgpveynwtjnlinjwq

Laina: Dynamic Data Physicalization for Slow Exercising Feedback

Daphne Menheere, Evianne van Hartingsveldt, Mads Birkebæk, Steven Vos, Carine Lallemand
2021 Designing Interactive Systems Conference 2021  
However, in their current form and interaction, these take a rather standardized approach focusing on quantified data tracking displayed through screens or audio.  ...  The aim of our paper is to provide insights on the use of slow feedback mechanisms for exercise-related products, through the design of a dynamic data physicalization artefact.  ...  ACKNOWLEDGMENTS We would like to thank all the participants who contributed to this study. Additionally, we also thank Nicolai Hansen for his worthwhile comments on the paper.  ... 
doi:10.1145/3461778.3462041 fatcat:szqzhlilajcoviesq2t5fn42yu

A High Performance Spelling System based on EEG-EOG Signals With Visual Feedback

Min-Ho Lee, John Williamson, Dong-Ok Won, Siamac Fazli, Seong-Whan Lee
2018 IEEE transactions on neural systems and rehabilitation engineering  
Healthy users and physically challenged participants, in particular, may become exhausted quickly; thus, there is a need for a speller system with fast typing speed while retaining a high level of spelling  ...  In our extended experiment, we redesigned the visual feedback and minimized the number of channels (four channels) in order to enhance the speller performance and increase usability.  ...  [32] proposed a hybrid spelling system that combines EEG signals with a webcam-based eye-tracking system.  ... 
doi:10.1109/tnsre.2018.2839116 pmid:29985154 fatcat:7i7w4hqk2nf25bwo5ztw45a6hq

Does visual feedback during walking result in similar improvements in trunk control for young and older healthy adults?

Eric Anson, Russell Rosenberg, Peter Agada, Tim Kiemel, John Jeka
2013 Journal of NeuroEngineering and Rehabilitation  
At very low frequencies of body movement, older adults had equivalent levels of movement variability with feedback as young adults without feedback.  ...  We have developed a low cost platform to provide visual feedback of trunk motion during walking.  ...  Acknowledgement This study was supported in part by a scholarship from the Foundation for Physical Therapy, Inc. to Eric Anson. This study was supported in part by NSF grant BCS 0924883, J. Jeka & T.  ... 
doi:10.1186/1743-0003-10-110 pmid:24274143 pmcid:PMC4222260 fatcat:7jvkzzhjdzeq7f3eloh2j5krhi

The Evolution and Devolution of 360° Feedback

David W. Bracken, Dale S. Rose, Allan H. Church
2016 Industrial and Organizational Psychology  
In this article we offer a new definition of 360° Feedback, summarize its history, discuss significant research and practice trends, and offer suggestions for all user communities (i.e., researchers, practitioners  ...  Our purpose is to bring new structure, discussion, and some degree of closure to key open issues in this important and enduring area of practice.  ...  goals, appraises, and rewards the same set of behaviors and performance dimensions . . . ; and h) track results over time.  ... 
doi:10.1017/iop.2016.93 fatcat:hqlphsnb7nbgfix7mfyc3irida

Perturbing the consistency of auditory feedback in speech

Daniel R. Nault, Takashi Mitsuya, David W. Purcell, Kevin G. Munhall
2022 Frontiers in Human Neuroscience  
Here, in two within-subject design experiments, we used a real-time formant manipulation system to explore how reliant speech articulation is on the accuracy or predictability of auditory feedback information  ...  Sensory information, including auditory feedback, is used by talkers to maintain fluent speech articulation.  ...  ., the Stroop test, Implicit Association Test). The lack of robustness at the individual participant level of auditory feedback effects is somewhat unsettling.  ... 
doi:10.3389/fnhum.2022.905365 pmid:36092651 pmcid:PMC9453207 fatcat:745jy5masrdnnjswjaxih2o7pi
« Previous Showing results 1 — 15 out of 11,454 results