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Truthful Facility Location with Additive Errors [article]

Iddan Golomb, Christos Tzamos
2017 arXiv   pre-print
As opposed to the extensive literature on facility location which considers the multiplicative error, we focus on minimizing the worst-case additive error.  ...  Minimizing the additive error incentivizes mechanisms to adapt to the size of the instance.  ...  Discussion and Open Problems We examine the problem of truthful facility location under additive errors.  ... 
arXiv:1701.00529v1 fatcat:pxgzammowfe5pem4nqntrhpr6y

Ground-Truthing Validation to Assess the Effect of Facility Locational Error on Cumulative Impacts Screening Tools

J. L. Sadd, E. S. Hall, M. Pastor, R. A. Morello-Frosch, D. Lowe-Liang, J. Hayes, C. Swanson
2015 Geography Journal  
Ground-truthing showed substantial locational inaccuracy and error in hazardous facility databases and statewide air toxics emission inventories of up to 10 kilometers.  ...  These errors resulted in significant differences in cumulative impact screening scores generated by one screening tool, the Environmental Justice Screening Method.  ...  source(s) with (i) subsequent correction applied to facility location(s) and/or (ii) removal of nonexistent facilities or addition of new facilities based on visual confirmation and GPS location) to determine  ... 
doi:10.1155/2015/324683 fatcat:7xya7u2b35cx3hd3y2mxjls5bi

The Truth, the Whole Truth, and Nothing but the Ground-Truth

James Sadd, Rachel Morello-Frosch, Manuel Pastor, Martha Matsuoka, Michele Prichard, Vanessa Carter
2013 Health Education & Behavior  
We document how an environmental justice screening method was coupled with "ground-truthing"-a project in which community members worked with researchers to collect data across six Los Angeles neighborhoods-which  ...  demonstrated the clustering of potentially hazardous facilities, high levels of air pollution, and elevated health risks.  ...  The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.  ... 
doi:10.1177/1090198113511816 pmid:24347142 fatcat:fr6b7swz6vbsrpqd3vmgazy5km

Using a Map of Measurement Noise to Improve UWB Indoor Position Tracking

William Suski, Salil Banerjee, Adam Hoover
2013 IEEE Transactions on Instrumentation and Measurement  
We tested our methods in two facilities, collecting over 5.6 million measurements. Evidence shows that the measurement noise is multimodal, location dependent, stable over time, and locally similar.  ...  Figs. 2 and 3 denote the collection locations with unfilled squares. Measurements were taken at 7931 locations in the Shoothouse facility and 3272 locations in the Riggs facility.  ...  Figs. 12 and 13 show the average error vector for every fourth collection location in each facility.  ... 
doi:10.1109/tim.2013.2256714 fatcat:si6vhqzrufcghba22s33zxy4ki

Acoustic localization of antbirds in a Mexican rainforest using a wireless sensor network

Travis C. Collier, Alexander N. G. Kirschel, Charles E. Taylor
2010 Journal of the Acoustical Society of America  
Both free-ranging wild antbird songs and songs played from a speaker were localized with mean errors of 0.199 m and 0.445 m, respectively.  ...  Finally, additional tests utilizing only a short segment of each song or a subset of sensor nodes were performed and found to minimally affect localization accuracy.  ...  The smaller localization errors for playbacks at location 6 are likely due to that location being in a relatively open area with line of sight to five recording nodes.  ... 
doi:10.1121/1.3425729 pmid:20649213 fatcat:5u42iqzuknefle2tix5narw6h4

Approximately Optimal Mechanism Design via Differential Privacy [article]

Kobbi Nissim, Rann Smorodinsky, Moshe Tennenholtz
2011 arXiv   pre-print
We cast our results onto two specific models: pricing and facility location.  ...  the optimal outcome with high probability.  ...  We demonstrate our results in two specific settings: (1) Facility location problems, where the social planner is tasked with the optimal location of K facilities in the most efficient way.  ... 
arXiv:1004.2888v4 fatcat:5t6tiqqgczfq3bvbsrr3zsvfoi

Strategyproof classification

Reshef Meir, Jeffrey S. Rosenschein
2011 ACM SIGecom Exchanges  
Experts reporting the labels used by a learning algorithm cannot always be assumed to be truthful.  ...  Facility location In the facility location (FL) problem, agents report their location (usually in some metric space), and the mechanism outputs a location for a facility that is close, on average, to all  ...  The IR condition in the FL setting is translated to the restriction that agents' locations are limited vertices where the facility can be placed.  ... 
doi:10.1145/2325702.2325708 fatcat:65tdugr3vzfulhh7sbecrt65si

Validation of Portable Mobile Mapping System for Inspection Tasks in Thermal and Fluid–Mechanical Facilities

Rodríguez-Martín, Rodríguez-Gonzálvez, Ruiz de Oña Crespo, González-Aguilera
2019 Remote Sensing  
facilities context.  ...  The validation of the PMMS is provided considering the TLS as ground truth and applying a robust statistical analysis.  ...  The last possible error source is a residual error from the alignment procedure carried out with spheres.  ... 
doi:10.3390/rs11192205 fatcat:jycylbks5fbznpsrbuu4ijyvvi

The design and implementation of a self-calibrating distributed acoustic sensing platform

Lewis Girod, Martin Lukac, Vlad Trifa, Deborah Estrin
2006 Proceedings of the 4th international conference on Embedded networked sensor systems - SenSys '06  
., 5 cm average 2D position error and 1.5 degree average orientation error over a partially obstructed 80x50 m outdoor area.  ...  The ENSBox's integrated, high precision self-calibration facility sets it apart from other platforms.  ...  To measure angular ground truth, a laser aligned with the receiver in the center is pointed at a measured location along the edge of the square.  ... 
doi:10.1145/1182807.1182815 dblp:conf/sensys/GirodLTE06 fatcat:4dnraptgurddhipvmh73wns4pe

Tunnel Facility-based Vehicle Localization in Highway Tunnel using 3D LIDAR [article]

Kyuwon Kim, Junhyuck Im, Gyuin Jee
2020 arXiv   pre-print
As a result, it is a very difficult condition to perform vehicle navigation in the tunnel with existing map-aided localization.  ...  In this paper, we propose tunnel facility-based precise vehicle localization in highway tunnels using 3D LIDAR.  ...  Fig. 21 shows the ground truth trajectory result. As shown in Fig. 21 , the extracted tunnel facility points are matched with the landmark map points.  ... 
arXiv:2012.13168v1 fatcat:dcsdk3dig5bdvj5fltbzrkrg4y

Initial phantom studies for an office-based low-field MR system for prostate biopsy

Selin Chiragzada, Eva Hellman, Duncan Michael, Ram Narayanan, Aleksandar Nacev, Dinesh Kumar
2021 International Journal of Computer Assisted Radiology and Surgery  
Coordinates of the estimated sample core locations in the office-based MR system were compared to ground truth needle coordinates identified in a 1.5T external reference scan.  ...  The average error between the planned target and the ground truth core center was 2.57 ± 1.02 mm, [1.93-3.21] 95% CI.  ...  Ground truth determination A 1.5T MRI scan of each phantom with the inserted cannulas was acquired at an external facility.  ... 
doi:10.1007/s11548-021-02364-7 pmid:33891253 fatcat:dpxwoy3vovdktffwr52utcqenu

Overview of sensor fusion research at RDECOM - NVESD & recent results on vehicle detection using multiple sensor nodes

P. Perconti, M. Loew, J. Hilger
2003 Sixth International Conference of Information Fusion, 2003. Proceedings of the  
The incremental value (in terms of error probability) added to the acoustic information by the image sensors (visible-and infraredwavelength cameras) is assessed in combination with the fusion techniques  ...  The approach specifically accounts for the effects of location  ...  Fusion approaches As stated earlier, all data collected with the SFTB will have associated ground truth in order to determine the image truth for vehicle location.  ... 
doi:10.1109/icif.2003.177487 fatcat:tizxdfauy5erva7lxfi2lg6iny

Enhancing the Quality of Infrared-Based Automatic Pedestrian Sensor Data by Nonparametric Statistical Method

Hong Yang, Kaan Ozbay, Bekir Bartin
2011 Transportation Research Record  
Pedestrian counts 4 are essential for decision-making for pedestrian facility planning, signal timing, and pedestrian 5 safety modeling.  ...  1 With the advent of Intelligent Transportation Systems in the last several decades, sensors are 2 being extensively used to detect and count vehicle movements.  ...  Moreover, errors rates change 14 from location to location.  ... 
doi:10.3141/2264-02 fatcat:msv4b7qhknabxlfny6h7if6rmm

Validation of 3 Food Outlet Databases: Completeness and Geospatial Accuracy in Rural and Urban Food Environments

A. D. Liese, N. Colabianchi, A. P. Lamichhane, T. L. Barnes, J. D. Hibbert, D. E. Porter, M. D. Nichols, A. B. Lawson
2010 American Journal of Epidemiology  
The authors conducted a comprehensive field census identifying the locations of all food outlets using a handheld global positioning system in 8 counties in South Carolina (2008)(2009).  ...  For outlets not found in a first ground-truthing attempt, we conducted additional Internet queries and, if needed, contacted the outlet.  ...  A navigational system was used to locate listed outlets during the ground-truthing trips.  ... 
doi:10.1093/aje/kwq292 pmid:20961970 pmcid:PMC2991633 fatcat:bqsxblgc4fdxldrrl5tkzq6i7y

Approximately Optimal Mechanism Design Via Differential Privacy

Kobbi Nissim, Rann Smorodinsky, Moshe Tennenholtz
2011 Social Science Research Network  
To demonstrate this consider the facility location problem, where a social planner needs to locate some facilities, based on agents' reports of their own location.  ...  We cast our results onto two specific models: pricing and facility location.  ...  locating public facilities.  ... 
doi:10.2139/ssrn.2017224 fatcat:ncncq5lmw5afnjdoayn3gd4tdq
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