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Blind Spot Detection for Safe Sim-to-Real Transfer

Ramya Ramakrishnan, Ece Kamar, Debadeepta Dey, Eric Horvitz, Julie Shah
2020 The Journal of Artificial Intelligence Research  
In this work, we propose the use of oracle feedback to learn a predictive model of these blind spots in order to reduce costly errors in real-world applications.  ...  Our system learns models for predicting blind spots within unseen regions of the state space by combining techniques for label aggregation, calibration, and supervised learning.  ...  However, running π sim without corrections cannot be safely transferred to the real world; we include the analysis here only in order to assess the benefit of the agent receiving signals about blind spot  ... 
doi:10.1613/jair.1.11436 fatcat:xqsuk44t2jcgdlhrfmisc7thua

Overcoming Blind Spots in the Real World: Leveraging Complementary Abilities for Joint Execution

Ramya Ramakrishnan, Ece Kamar, Besmira Nushi, Debadeepta Dey, Julie Shah, Eric Horvitz
Our approach for blind spot discovery combines experiences collected in simulation with limited human demonstrations.  ...  The formulation assumes that agent blind spots result from representational limitations in the simulation world, which leads the agent to ignore important features that are relevant for acting in the open  ...  Blind spot detection and safe transfer of control allows for better awareness of where the policy needs to be improved.  ... 
doi:10.1609/aaai.v33i01.33016137 fatcat:ulmyxoct3bdmhomljdwxhihp2i

Discovering Blind Spots in Reinforcement Learning [article]

Ramya Ramakrishnan, Ece Kamar, Debadeepta Dey, Julie Shah, Eric Horvitz
2018 arXiv   pre-print
We propose using oracle feedback to learn a predictive model of these blind spots to reduce costly errors in real-world applications.  ...  We learn models to predict blind spots in unseen regions of the state space by combining techniques for label aggregation, calibration, and supervised learning.  ...  observations (blind spot vs. safe labels) and true labels (blind spot vs. safe states).  ... 
arXiv:1805.08966v1 fatcat:uxd4ci2tcjc77e5t65bocrzhai

An Embedded Gateway with Communication Extension and Backup Capabilities for ZigBee-Based Monitoring and Control Systems

Ke-Feng Lin, Shih-Sung Lin, Min-Hsiung Hung, Chung-Hsien Kuo, Ping-Nan Chen
2019 Applied Sciences  
spots.  ...  Therefore, the ZigBee wireless sensor network (WSN) is very suitable for use in developing monitoring and control (MC) applications, such as remote healthcare, industrial control, fire detection, environmental  ...  If WSNs were built in the yellow and orange zones, these would be considered communication blind spots. We would be limited to using GSM/SMS [10] [11] [12] communication for remote monitoring.  ... 
doi:10.3390/app9030456 fatcat:nh6vpo6x6zegnb7lbsx5tn22hu

Trucks and Bikes: Sharing the Roads

Warwick Pattinson, Russell G. Thompson
2014 Procedia - Social and Behavioral Sciences  
Road management approaches with integrated safety benefits include designating routes and times for the movement of freight vehicles to avoid cyclists and requiring the trucks used in urban areas to have  ...  Those involved in city logistics can help to promote cycling and other forms of active transport by participating in the development and implementation of measures that increase the level of safety for  ...  It brings together a number of measures to eliminate blind spots and relay other information (Volvo Trucks, 2011), (ii) Migration of the Volvo car Cyclist Detection System to detect when pedestrians and  ... 
doi:10.1016/j.sbspro.2014.01.1471 fatcat:epixh3xixfb3lc7djx7yvexffm

Trends in Next Generation Intelligent Transportation Systems [chapter]

Prem Chand Jain
2021 Artificial Intelligence  
Today old aged/disabled person look for driving technology that is convenient and easy to use.  ...  Connected vehicles can be used for both infotainment and navigation for vehicle safety.  ...  Noida (UP) for his encouragement, and permission to publish this paper.  ... 
doi:10.5772/intechopen.97690 fatcat:43wa35ianzdavggmte3mxnunh4

Remote Monitoring System for Photovoltaic Power Station Based on Beidou

Wenping Xiao, Zhaowen Huang, Yajun Li, Yunlin Sun
2017 DEStech Transactions on Engineering and Technology Research  
the photovoltaic power generation system provides a safe and reliable data communication link, Which provides important guarantee for the power data, climate data and real-time monitoring of dynamic positioning  ...  Compared with the power carrier, GPRS, optical fiber communication and other means, BDS has all-weather, outdoor blind spot characteristics, the short message communication function, can be used for PPS  ...  ACKNOWLEDGMENT The authors would like to thank the engineers, like Jinyang Li and Jiang Li, for their help in system experimentation.  ... 
doi:10.12783/dtetr/apetc2017/11357 fatcat:w46rljlbc5cbbnnml4xgaluvxa

Teleophthalmology image-based navigated retinal laser therapy for diabetic macular edema: a concept of retinal telephotocoagulation

Igor Kozak, John F. Payne, Patrik Schatz, Eman Al-Kahtani, Moritz Winkler
2017 Graefe's Archives for Clinical and Experimental Ophthalmology  
The primary outcome of the study 33 was feasibility of image transfer and performing navigated laser photocoagulation for subjects with diabetic macular 34 edema between two distant clinics.  ...  Abstract 25 26 Background: To determine the feasibility and efficacy of a retinal telephotocoagulation treatment plan for diabetic 27 macular edema. 28 Methods: Prospective, interventional cohort study  ...  Maa AY, Evans C, DeLaune WR, Patel PS, Lynch MG (2014) A novel tele-eye protocol for ocular disease 266 detection and access to eye care services.  ... 
doi:10.1007/s00417-017-3674-1 pmid:28447201 fatcat:owyoikime5g5vj7awadeu7hs24

Learning Object-conditioned Exploration using Distributed Soft Actor Critic [article]

Ayzaan Wahid, Austin Stone, Kevin Chen, Brian Ichter, Alexander Toshev
2020 arXiv   pre-print
of real homes.  ...  In its general form, this problem poses several challenges for Robotics: semantic exploration of unknown environments in search of an object and low-level control.  ...  We leave real world deployment for future work, as this would require more work in sim-to-real transfer or training in the real, which are challenging due to the sim-to-real gap and limited ability to  ... 
arXiv:2007.14545v2 fatcat:aehepdbcyvgkvoq6vjrytxxb2u

Obstacle avoidance using stereo vision and depth maps for visual aid devices

Vaibhav Bansal, Krithika Balasubramanian, P. Natarajan
2020 SN Applied Sciences  
The central concept is to categorize point vertices for the detection of objects in three-dimensional space according to height, width and slope of the adjacent vertices present in the images captured  ...  While, it employs ultrasonic sensors to detect obstacles present at shorter distances.  ...  We wish to extend our sincere gratitude to our professor Prof. Dr. Natarajan P, and all other faculties of CSE4001 for the knowledge and information that was taught and shared in class.  ... 
doi:10.1007/s42452-020-2815-z fatcat:5yo4cjhq6nfczk7yr3hzvqal5i

The SmartVision Navigation Prototype for Blind Users

J.M. Hans du Buf, Joao Barroso, Joao M.F. Rodrigues, Hugo Paredes, Miguel Farrajota, Hugo Fernandes, Joao Jose, Victor Teixeira, Mario Saleiro
2011 International Journal of Digital Content Technology and its Applications  
The goal of the Portuguese project "SmartVision: active vision for the blind" is to develop a small, portable and cheap yet intelligent and reliable system for assisting the blind and visually impaired  ...  The prototype addresses global navigation for going to some destiny, by following known landmarks stored in the GIS in combination with path optimisation, and local navigation with path and obstacle detection  ...  The vision module provides local orientation instructions by detecting sidewalk borders and possible obstacles in front on the path, for guiding the user safely.  ... 
doi:10.4156/jdcta.vol5.issue5.39 fatcat:ekezf2girraednntavxr62td6q

A Discussion on the Vision of Railway Servants

1891 The BMJ (British Medical Journal) (Print)  
He believed that the only safe course was total abstinence for the majority of people, and instanced the advantages, both physical and meNtal, which would accrue therefrom.  ...  Wlhen, however, the time arrives for the servant to be promoted-for instance, from engine cleaner to fireman or from fireman to driver-his vision is again tested, but this time not by the company's surgeon  ...  The Detection of Coloer Blindness and lInperfect Eyesight. By Charles Roberts, F.R.C.S., etc. 2nd edition. London: J. and A.  ... 
pmid:20753397 pmcid:PMC2273413 fatcat:ui5633wg25crxmioh3cjphs3e4

A Pipeline for the Generation of Realistic 3D Synthetic Echocardiographic Sequences: Methodology and Open-Access Database

M. Alessandrini, M. De Craene, O. Bernard, S. Giffard-Roisin, P. Allain, I. Waechter-Stehle, J. Weese, E. Saloux, H. Delingette, M. Sermesant, J. D'hooge
2015 IEEE Transactions on Medical Imaging  
State-of-the art solutions in the fields of electromechanical modeling and ultrasound simulation are combined within an original framework that exploits a real ultrasound recording to learn and simulate  ...  In this context, the use of fully synthetic sequences has become an established tool for initial in silico evaluation.  ...  A blind test involving four expert readers proved the synthetic sequences to be often indistinguishable from real recordings (cf. Fig. 9 ).  ... 
doi:10.1109/tmi.2015.2396632 pmid:25643402 fatcat:qobpqrkmljatdpy6khuyw3bbva

Simulative performance evaluation of the simTD Self Organizing Traffic Information System

David Eckhoff, Tobias Gansen, Robert Manz, Daniela Thum, Oliver Klages, Christoph Sommer
2011 2011 The 10th IFIP Annual Mediterranean Ad Hoc Networking Workshop  
The sim TD (Safe and Intelligent Mobility: Test Field Germany) research project is another step towards bringing Car-to-X technology to marketability.  ...  We further contribute to the community and other projects using similar TIS deployments by introducing applicable metrics for TIS evaluation in general and show our findings for the sim TD research project  ...  ACKNOWLEDGMENTS This work was funded within the project sim TD by the German Federal Ministries of Economics and Technology as well as Education and Research, and supported by the German Federal Ministry  ... 
doi:10.1109/med-hoc-net.2011.5970497 dblp:conf/medhocnet/EckhoffGMTKS11 fatcat:s6muru3knrduphfgvxin6wcx5u

Effects of Korean red ginseng (Panax Ginseng Meyer) on bisphenol A exposure and gynecologic complaints: single blind, randomized clinical trial of efficacy and safety

Mihi Yang, Ho-Sun Lee, Min-Woo Hwang, Mirim Jin
2014 BMC Complementary and Alternative Medicine  
Methods: We performed a single-blind randomized clinical trial.  ...  Study subjects were young women (N = 22), consumed 2.7 g of KRG or placebo per day for 2 weeks and filled up questionnaires regarding gynecologic complaints at the 4 time spots.  ...  Therefore, KRG has a potential to be safe and chemopreventive for the above complaints.  ... 
doi:10.1186/1472-6882-14-265 pmid:25063041 pmcid:PMC4122766 fatcat:povbl6e56zelpcqzh3ifxkz3we
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