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Time Distortion Anonymization for the Publication of Mobility Data with High Utility

Vincent Primault, Sonia Ben Mokhtar, Cedric Lauradoux, Lionel Brunie
2015 2015 IEEE Trustcom/BigDataSE/ISPA  
The authors proposed an approach that adapts to the original data in order to guarantee differential privacy with the highest possible utility.  ...  We present in the next section an alternative solution based on temporal distortion and analyse the pros and cons of each approach in the rest of the paper. IV.  ... 
doi:10.1109/trustcom.2015.417 dblp:conf/trustcom/PrimaultMLB15 fatcat:25nza5ovq5d7zjfeen5rf2d45e

Total Harmonic Distortion Decomposition Depending on Distortion Origin

A. Ortiz, C. Gherasim, M. Manana, C.J. Renedo, L.I. Eguiluz, R.J.M. Belmans
2005 IEEE Transactions on Power Delivery  
In this paper, a decomposition of the THD will be presented in order to determine the responsibility of the distribution company and the electrical energy consumer for the harmonic distortion measured  ...  The total harmonic distortion (THD) ratio is a wellknown parameter that characterizes the distortion degree at a specific point of the grid.  ...  THD Decomposition In order to illustrate and evaluate the approach proposed in Section III, similar tests to those discussed above were performed, with the objective being to verify the THD decomposition  ... 
doi:10.1109/tpwrd.2005.852389 fatcat:6eof4vclorg4vcf532lddw3cfa

Minimization of total harmonic distortions of cascaded H-bridge multilevel inverter by utilizing bio inspired AI algorithm

Muhammad Salman, Inzamam Ul Haq, Tanvir Ahmad, Haider Ali, Affaq Qamar, Abdul Basit, Murad Khan, Javed Iqbal
2020 EURASIP Journal on Wireless Communications and Networking  
Minimizing total harmonic distortion (THD) with less system complexity and computation time is a stringent constraint for many power systems.  ...  The results reveal that THD has been reduced from 17.88 to 16.74% while third and fifth harmonics have been reduced from 3.24%, 3.7% to 0.84% and 3.3%, respectively.  ...  Internet of things (IoT) aims to utilize energy efficiently by using different technologies and make it possible for people to live on a green planet [32] .  ... 
doi:10.1186/s13638-020-01686-5 fatcat:t266sm7ugjfg3io5rafzqxfipm

An information distortion model of social class differences in math self-concept, intrinsic value, and utility value

Philip D. Parker, Herbert W. Marsh, Jiesi Guo, Jake Anders, Nikki Shure, Theresa Dicke
2018 Journal of Educational Psychology  
In this paper, we develop an information distortion model (IDM) of social class differences in self-beliefs and values.  ...  We suggest that the very educational structures that give rise to selfconcept and task value advantage for poorer children simultaneously restrict the possibility of their using this advantage to their  ...  In this paper, we developed an information distortion index (IDI; see also Murphy & Weinhardt, 2014 for an example of a similar approach).  ... 
doi:10.1037/edu0000215 fatcat:x6y5wy4r5ffdxjj7ogdwvfyxay

Rate Distortion Characteristic Modeling for Neural Image Compression [article]

Chuanmin Jia, Ziqing Ge, Shanshe Wang, Siwei Ma, Wen Gao
2022 arXiv   pre-print
Furthermore, we model the rate and distortion characteristic of NIC as a function of the coding parameter λ respectively.  ...  Our experiments show our proposed method is easy to adopt and realizes state-of-the-art continuous bit-rate coding performance, which implies that our approach would benefit the practical deployment of  ...  Authors in et al. utilizes a game theory approach to allocate coding tree unit level bit allocation and optimize for perceptual quality in HEVC [29] .  ... 
arXiv:2106.12954v2 fatcat:ag3ljehronar7kldwfugadot6a

Transportation Market Distortions

Todd Litman
2011 Berkeley Planning Journal  
Although these distortions may individually appear modest and justifi ed, their impacts are cumulative and synergistic, leading to economically excessive motor vehicle use.  ...  This report examines these distortions and their implications for transport planning.  ...  of motorized trips (for example, a bike-bus-walk trip is oft en coded simply as a bus trip, and an auto-walk trip is coded as an auto trip, even if the nonmotorized link involved takes more time than  ... 
doi:10.5070/bp319111487 fatcat:6mfygnm4lfdwfnfzaohc6tibnm

Modulated Acquisition of Spatial Distortion Maps

Alexey Volkov, Jerneja Gros, Mario Žganec, Tomaž Javornik, Aleš Švigelj
2013 Sensors  
By applying a pseudo-random code modulation to sequential acquisition of projected patterns the impact of environmental factors such as ambient light and mutual interference is significantly reduced.  ...  This work discusses a novel approach to image acquisition which improves the robustness of captured data required for 3D range measurements.  ...  An innovative approach to acquisition of projected patterns has been proposed and its performance evaluation has been presented in the paper.  ... 
doi:10.3390/s130811069 pmid:23966196 pmcid:PMC3812642 fatcat:vroyk4uv45e7fkkg5deykbahhu

Network Control: A Rate-Distortion Perspective [article]

Jubin Jose, Sriram Vishwanath
2011 arXiv   pre-print
Therefore, first, this paper develops a framework for network control that incorporates both source-rate and source-distortion.  ...  Next, it decomposes the network control problem into an application-layer compression control, a transport-layer congestion control and a network-layer scheduling.  ...  To incorporate the source-coding parameters, it is natural to utilize rate-distortion functions of sources studied in information theory [10] .  ... 
arXiv:1008.0044v2 fatcat:zgldu5cnb5ehxmgihzowj3ddhm

Prospect Theory as Efficient Perceptual Distortion

Michael Woodford
2012 The American Economic Review  
In rational choice theory, individuals are assumed always to choose the option that will provide them maximum utility.  ...  to which they are adapted, subject to a limit on processing capacity.  ...  Let us consider in particular the relation between the objective luminance of an object in one's field of vision (i.e., the amount of light actually reflected to the eye from it) and the subjective perception  ... 
doi:10.1257/aer.102.3.41 fatcat:gwnepjfmc5db5hcaiulmlqe2rm

GPS Information and Rate Tolerance - Clarifying Relationship between Rate Distortion and Complexity Distortion [article]

Chenguang Lu
2012 arXiv   pre-print
The paper uses GPS as an example to derive generalized information formulae and proves the above conclusions using mathematical analyses and a coding example.  ...  I proposed rate tolerance and discussed its relation to rate distortion in my book "A Generalized Information Theory" published in 1993.  ...  We assume that the possible actual positions of an object surrounding the pointed position by a GPS are normally distributed.  ... 
arXiv:1204.3752v1 fatcat:izctzlqppjfdpmmths37bm46fa

Video Compression With Rate-Distortion Autoencoders [article]

Amirhossein Habibian, Ties van Rozendaal, Jakub M. Tomczak, Taco S. Cohen
2019 arXiv   pre-print
We employ a model that consists of a 3D autoencoder with a discrete latent space and an autoregressive prior used for entropy coding.  ...  Both autoencoder and prior are trained jointly to minimize a rate-distortion loss, which is closely related to the ELBO used in variational autoencoders.  ...  Despite its simplicity, the model outperforms all methods to which a direct comparison is possible, including substantially more complicated approaches.  ... 
arXiv:1908.05717v2 fatcat:ntnd7l5b3ze73ogdxcajck65cy

Visual Analysis Motivated Rate-Distortion Model for Image Coding [article]

Zhimeng Huang, Chuanmin Jia, Shanshe Wang, Siwei Ma
2021 arXiv   pre-print
, object detection, and semantic segmentation.  ...  After an in-depth analysis of multiple distortion models, a visual analysis friendly distortion criteria is subsequently proposed by extracting deep feature of each coding unit (CU).  ...  analysis, VGG-11 without last pooling and fully connected layer is adopted and utilized as our distortion measurement in the proposed approach. • To deal with lacking spatial context information, a multiscale  ... 
arXiv:2104.10315v1 fatcat:aygp5evp55gchltgoqjpgyynnm

On Distributed Distortion Optimization for Correlated Sources

Tao Cui, Tracey Ho, Lijun Chen
2007 2007 IEEE International Symposium on Information Theory  
Our distributed optimization framework applies to unicast and multicast with and without network coding.  ...  The algorithm is developed for the case of squared error distortion and high resolution coding where the rate distortion region is known, and is easily extended to consider achievable regions that can  ...  In [9] , [10] , rate control for multicast with network coding has been studied for elastic traffic, with an aggregate utility maximization objective.  ... 
doi:10.1109/isit.2007.4557631 dblp:conf/isit/CuiH007 fatcat:lggwznwkznahbay5ayde6enpnm

Rate-Distortion Auto-Encoders [article]

Luis G. Sanchez Giraldo, Jose C. Principe
2014 arXiv   pre-print
Here, we propose a learning algorithm for auto-encoders based on a rate-distortion objective that minimizes the mutual information between the inputs and the outputs of the auto-encoder subject to a fidelity  ...  Experiments using over-complete bases show that the rate-distortion auto-encoders can learn a regularized input-output mapping in an implicit manner.  ...  Conclusions We presented an algorithm for auto-encoders based on a rate-distortion objective that tries to minimize the mutual information between the inputs and outputs subject to a fidelity constraint  ... 
arXiv:1312.7381v2 fatcat:6wqwv2sqlnagji33adup2t2ggu

Rate Distortion Functions and Rate Distortion Function Lower Bounds for Real-World Sources

Jerry Gibson
2017 Entropy  
However, unlike the case of an i.i.d. Gaussian source subject to the mean squared error distortion measure, we do not have the rate distortion functions for voice and video set in stone.  ...  to be per realization of the source sequence rather than an average model over many different realizations.  ...  Acknowledgments: Ying-Yi Li calculated the small distortion lower bounds for speech in Figures 4-7 .  ... 
doi:10.3390/e19110604 fatcat:yy5zfsjkhjddteiuvgczxx43hu
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