scholarly journals Bandwidth Overhead-Free Data Reconstruction Scheme for Distributed Storage Code With Low Decoding Complexity

IEEE Access ◽  
2017 ◽  
Vol 5 ◽  
pp. 6824-6832
Author(s):  
Mingjun Dai ◽  
Xia Wang ◽  
Hui Wang ◽  
Xiaohui Lin ◽  
Bin Chen
Keyword(s):  
Distributed Storage ◽  
Data Reconstruction ◽  
Decoding Complexity ◽  
Reconstruction Scheme ◽  
Free Data ◽  
Bandwidth Overhead

scholarly journals Secure and Error-Free Data Storage on Cloud via Deniable CP-ABE Scheme

2019 ◽  
Vol 8 (10) ◽  
pp. 2880-2883
Keyword(s):  
Data Storage ◽  
Cloud Storage ◽  
Distributed Storage ◽  
User Privacy ◽  
Attribute Based Encryption ◽  
Free Data ◽  
Identity Privacy ◽  
Successive Change ◽  
Cloud Servers ◽  
Storage Encryption

Cloud storage services are quickly increasing and more prevalent. CSP-cloud storage providers offer storage as a service to all the users. It is a paid facility that allows association to outsource their confidential data to be stored on remote servers. But, identity privacy and preserving data from an untrusted cloud is a difficult concern, because of the successive change of the members. CSP has to be secured from an illegitimate person who performs data corruption over cloud servers. Thus, there is a need to safeguard information from the individuals who don’t have access by establishing numerous cloud storage encryption plans. Every such plan implemented expects that distributed storage suppliers are protected and can't be hacked; however, practically speaking, a few powers will compel distributed storage suppliers to render client details and secret information on the cloud, in this manner inside and out bypassing stockpiling encryption plans. In this paper, a new scheme is introduced to protect user privacy by a deniable CP_ABE(Cloud Provider_ Attribute Based Encryption) scheme which implements a cloud storage encryption plan. Since coercers cannot specify whether privileged insights are valid or not, the CSP ensures privacy of the user

scholarly journals Estimating Potential Evapotranspiration by Missing Temperature Data Reconstruction

2015 ◽  
Vol 2015 ◽  
pp. 1-10
Author(s):  
Eladio Delgadillo-Ruiz ◽  
Eusebio Jr. Ventura-Ramos ◽  
Julián González Trinidad ◽  
Hugo Enrique Júnez-Ferreira ◽  
Carlos Francisco Bautista-Capetillo ◽  
...  
Keyword(s):  
Missing Data ◽  
Water Balance ◽  
Water Availability ◽  
Potential Evapotranspiration ◽  
Temperature Data ◽  
Statistical Characteristics ◽  
Data Reconstruction ◽  
Reconstruction Scheme ◽  
Weather Stations

This work studies the statistical characteristics of potential evapotranspiration calculations and their relevance within the water balance used to determine water availability in hydrological basins. The purpose of this study was as follows: first, to apply a missing data reconstruction scheme in weather stations of the Rio Queretaro basin; second, to reduce the generated uncertainty of temperature data: mean, minimum, and maximum values in the evapotranspiration calculation which has a paramount importance in the manner of obtaining the water balance at any hydrological basin. The reconstruction of missing data was carried out in three steps: (1) application of a 4-parameter sinusoidal type regression to temperature data, (2) linear regression to residuals to obtain a regional behavior, and (3) estimation of missing temperature values for a certain year and during a certain season within the basin under study; estimated and observed temperature values were compared. Finally, using the obtained temperature values, the methods of Hamon, Papadakis, Blaney and Criddle, Thornthwaite, and Hargreaves were employed to calculate potential evapotranspiration that was compared to the real observed values in weather stations. With the results obtained from the application of this procedure, the surface water balance was corrected for the case study.

Using an Avatar, RFID & speech recognition for hands-free data collection

2008 ◽  
Author(s):  
Kristie Nemeth ◽  
Nicole Arbuckle ◽  
Andrea Snead ◽  
Drew Bowers ◽  
Christopher Burneka ◽  
...  
Keyword(s):  
Speech Recognition ◽  
Data Collection ◽  
Free Data

Correction and preparation of continuously measured raingauge data: a standard method in North Rhine-Westphalia

1998 ◽  
Vol 37 (11) ◽  
pp. 155-162 ◽  
Author(s):  
B. Maul-Kötter ◽  
Th. Einfalt
Keyword(s):  
Water Balance ◽  
Standard Method ◽  
The State ◽  
Rainfall Runoff ◽  
Runoff Simulation ◽  
Site Specific ◽  
Free Data ◽  
Important Input ◽  
Raingauge Data ◽  
Environmental Agency

Continuous raingauge measurements are an important input variable for detailed rainfall-runoff simulation. In North Rhine-Westphalia, more than 150 continuous raingauges are used for local hydrological design through the use of site specific rainfall runoff models. Requiring gap-free data, the State Environmental Agency developed methods to use a combination of daily measurements and neighbouring continuous measurements for filling periods of lacking data in a given raindata series. The objective of such a method is to obtain plausible data for water balance simulations. For more than 3500 station years the described methodology has been applied.

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