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Approximating Unknown Mappings: An Experimental Evaluation

Rafael Martí, Francisco Montes, Abdellah El-Fallahi
2005 Journal of Heuristics  
Different methodologies have been introduced in recent years with the aim of approximating unknown functions.  ...  The experimentation with 15 functions previously reported shows that a feed-forward neural network with one hidden layer, trained with our procedure, can compete with the best-known approximating methods  ...  On the other hand, when we are trying to approximate an unknown mapping with an expression with a large number of independent terms, in particular a polynomial, we can find that many of them do not have  ... 
doi:10.1007/s10732-005-1502-y fatcat:3qnmysc7vjfnzcgwiusntkpuaa

Fair Representation: Guaranteeing Approximate Multiple Group Fairness for Unknown Tasks [article]

Xudong Shen, Yongkang Wong, Mohan Kankanhalli
2021 arXiv   pre-print
When an incompatibility exists between different fairness notions, fair and discriminative representation hits the sweet spot that approximately satisfies all notions.  ...  Against the backdrop of the fairness impossibility results, we explore approximate fairness.  ...  Thus, using an approximately fair and approximately discriminative representation degrades the fairness guarantees gracefully. Corollary 1.  ... 
arXiv:2109.00545v1 fatcat:l75rti67brgjxk5tbddhnb6kwm

Non-Gaussian statistical inverse problems. Part II: Posterior convergence for approximated unknowns

Sari Lasanen
2012 Inverse Problems and Imaging  
As many unknowns are function-valued, it is of interest to know whether the estimated probabilities converge when the finite-dimensional approximations of the unknown are refined.  ...  The statistical inverse problem of estimating the probability distribution of an infinite-dimensional unknown given its noisy indirect observation is studied in the Bayesian framework.  ...  approximated unknowns.  ... 
doi:10.3934/ipi.2012.6.267 fatcat:cn6t55isqjboplssd3yiaapbci

An Experimental Framework for BGP Security Evaluation

Debbie Perouli, Olaf Maennel, Iain Phillips, Sonia Fahmy, Randy Bush, Rob Austein
2013 it - Information Technology  
Heute jedoch hat das Internet an Wichtigkeit zugenommen und ganz besonders im Bereich Routing reicht das Vertrauen zwischen den Internet-Anbietern nicht mehr aus.  ...  However, the research challenges are not over: not only do these new protocols need to be tested for protocol conformance and interoperability, they also need to be evaluated both for their security properties  ...  StarBED [30] , a compute-cluster in Japan, allows experimenters to perform large-scale evaluation tests.  ... 
doi:10.1524/itit.2013.1006 fatcat:cmffeq7c6bbptmmeclpmk5pq5y

Sparsity reconstruction in electrical impedance tomography: An experimental evaluation

Matthias Gehre, Tobias Kluth, Antti Lipponen, Bangti Jin, Aku Seppänen, Jari P. Kaipio, Peter Maass
2012 Journal of Computational and Applied Mathematics  
In this paper, the feasibility of the sparsity reconstruction approach is evaluated by experimental data from water tank measurements.  ...  The functional is minimized with an iterative soft shrinkage-type algorithm.  ...  In the present paper, this approach is evaluated with experimental data.  ... 
doi:10.1016/ fatcat:44mcqobxdbdunn5snzly25dwka

An experimental evaluation of crisis intervention

Sophy Bordow, Donald Porritt
1979 Social Science & Medicine Medical Psychology and Medical Sociology  
The individual is encouraged to confront the problem despite the unpleasant affect it arouses and the frustration of an unknown outcome.  ...  Hence the better outcome for those with support could, with some designs, be attributable to an unknown extent to personality factors. were s e t .  ...  (Interviewer introduces herself, attempting to establish right from the beginning as relaxed an atmosphere as possible.  ... 
doi:10.1016/0160-7979(79)90056-0 fatcat:pxj7qev55renvasiglbwd757ta

An experimental evaluation and characterization of VoIP over an LTE-A network

Mario Di Mauro, Antonio Liotta
2020 IEEE Transactions on Network and Service Management  
Most telecom operators implement LTE-A, an advanced version of LTE often marketed as 4G+, which achieves data rate peaks of 300 Mbps.  ...  Moreover, we propose a statistical characterization of jitter and RTT (representing the most critical parameters), identifying the optimal approximating distribution, namely the Generalized Extreme Value  ...  The first one, is an experimental performance assessment based on a real-world LTE measurement campaign.  ... 
doi:10.1109/tnsm.2020.2995505 fatcat:sccpv27w7ncslftyoekihhdmea

An evaluation of the development of experimental membranous nephropathy

Francis B. Gabbai, Leslie C. Gushwa, Curtis B. Wilson, Roland C. Blantz
1987 Kidney International  
An evaluation of the development of experimental membranous nephropathy. Heymann nephritis is a rat model of glomerulonephritis with morphologic manifestations of human membranous nephropathy.  ...  Glomerular hemodynamic evaluation by micropuncture in euvolemic rats with PHN revealed normal values for nephron filtration rate (SNGFR), LpA and the glomerular hydrostatic pressure gradient (iW) at day  ...  Heymann nephritis (HN) in the rat has provided an experimental model of membranous nephropathy which is similar in morphologic and functional aspects to human membranous glomerulopathy [1] .  ... 
doi:10.1038/ki.1987.140 pmid:3613404 fatcat:pslw6f7uwzeutcpmoisrkrp4y4

An Experimental Evaluation of the Adaptive Sampling Method for Time Series Classification and Clustering

Muhammad Marwan Muhammad Fuad
2016 Proceedings of the 5th International Conference on Pattern Recognition Applications and Methods  
In this paper, we conduct extensive experiments to evaluate the performance of adaptive sampling in 1-NN classification and k-means clustering tasks.  ...  Adaptive sampling is a dimensionality reduction technique of time series data inspired by the dynamic programming piecewise linear approximation.  ...  In this paper we present an extensive experimental evaluation of a certain dimensionality reduction technique which is the adaptive sampling method of time series.  ... 
doi:10.5220/0005694600480054 dblp:conf/icpram/Fuad16 fatcat:skpwhepl7fbeln5co5j55jmluy

An experimental evaluation of simrank-based similarity search algorithms

Zhipeng Zhang, Yingxia Shao, Bin Cui, Ce Zhang
2017 Proceedings of the VLDB Endowment  
This paper provides an empirical guideline for making such choices.  ...  This has led to many algorithms that efficiently calculate or approximate SimRank being proposed by researchers.  ...  Moreover, NI-Sim performs singular value decomposition (SVD) on matrix W to get an approximation.  ... 
doi:10.14778/3055540.3055552 fatcat:qb6alvxakfcd5dtyxqzrvpc6sm

Design and Experimental Evaluation of an Aerial Solution for Visual Inspection of Tunnel-like Infrastructures

Bianca Bendris, Julián Cayero Becerra
2022 Remote Sensing  
Contributing to this aim, the present work describes an aerial robotic solution designed to perform autonomous inspections of tunnel-like infrastructures.  ...  The proposed robotic system is equipped with visual and thermal sensors and uses an inspection-driven path planning algorithm to generate a path that maximizes the quality of the gathered data in terms  ...  Mapping Module To map the previously unknown environment, the 3D pointcloud provided by the depth camera is used to obtain a 3D voxel map.  ... 
doi:10.3390/rs14010195 fatcat:wilzursforeo7j5cnluzj75afq

Experimental Evaluation of an RSSI-Based Localization Algorithm on IoT End-Devices

Rosa Pita, Ramiro Utrilla, Roberto Rodriguez-Zurrunero, Alvaro Araujo
2019 Sensors  
Therefore, in this work we present an experimental evaluation of a received signal strength indicator (RSSI)-based localization algorithm implemented on IoT end-devices, comparing its results with those  ...  In addition, the execution time of the algorithm running in the nodes has been evaluated.  ...  [21] also presents an extensive experimental evaluation of a calibration-free localization algorithm, resulting in mean errors close to 1 m for indoor scenarios.  ... 
doi:10.3390/s19183931 fatcat:2mrwnxs4u5e4je5jclvi7xul6i

Matching with Text Data: An Experimental Evaluation of Methods for Matching Documents and of Measuring Match Quality [article]

Reagan Mozer, Luke Miratrix, Aaron Russell Kaufman, L. Jason Anastasopoulos
2019 arXiv   pre-print
This model, which we find successfully mimics human judgment, also allows for approximate and unsupervised evaluation of new procedures.  ...  Our experimental results identify methods that generate matches with higher subjective match quality than current state-of-the-art techniques.  ...  However, it is also of general interest to be able to evaluate new matching procedures without requiring additional human experimentation.  ... 
arXiv:1801.00644v7 fatcat:p2tmmjlk7jenfohrkgnggzvsba

Evaluation of Unknown Groundwater Contaminant Sources Characterization Efficiency under Hydrogeologic Uncertainty in an Experimental Aquifer Site by Utilizing Surrogate Models

Shahrbanoo Hazrati-Yadkoori, Bithin Datta
2017 Journal of Water Resource and Protection  
The performance of the developed surrogate models is evaluated for source characterization in an experimental contaminated aquifer site within the heterogeneous sand aquifer, located at the Botany Basin  ...  This study utilizes Self-Organizing Map (SOM) and Gaussian Process Regression (GPR) algorithms to develop surrogate models that can approximate the complex flow and transport processes in a contaminated  ...  of the developed methodology is evaluated by using the data from an experimental site.  ... 
doi:10.4236/jwarp.2017.913101 fatcat:vmz6o3jqjracjk5tnxhzru74ua

An experimental evaluation of bow-tie analysis for security

Per Håkon Meland, Karin Bernsmed, Christian Frøystad, Jingyue Li, Guttorm Sindre
2019 Information and Computer Security  
Purpose -Within critical-infrastructure industries, bow-tie analysis is an established way of eliciting requirements for safety and reliability concerns.  ...  Because of the ever-increasing digitalisation and coupling between the cyber and physical world, security has become an additional concern in these industries.  ...  It is unknown how experienced and reflected they were related to cheating.  ... 
doi:10.1108/ics-11-2018-0132 fatcat:5gkq3we3szeu7g7eowdc2yo5yu
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