scholarly journals Reverse Auction-Based Services Optimization in Cloud Computing Environments

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Hongkun Zhang ◽  
Xinmin Liu
Keyword(s):  
Cloud Computing ◽  
Competitive Ratio ◽  
Online Algorithm ◽  
Algorithm Design ◽  
Reverse Auction ◽  
User Agent ◽  
The Difference ◽  
And Performance ◽  
The Right ◽  
Cloud User

Cloud-based services have been increasingly used to provide on-demand access to a large amount of computing requests, such as data, computing, resources, and so on, in which it is vitally important to correctly select and assign the right resources to a workload or application. This paper presents a novel online reverse auction scheme based on online algorithm for allocating the cloud computing services, which can help the cloud users and providers to build workflow applications in a cloud computing environment. The online reverse auction scheme consists of three parts: online algorithm design, competitive ratio calculation, and performance valuation. The online reverse auction-based algorithm is proposed for the cloud user agent to choose the final winners based on Vickrey–Clarke–Groves (VCG) mechanism and online algorithm (OA). The competitive analysis is applied to calculate the competitive ratio of the proposed algorithm compared with the offline algorithm. This analysis method is significant to measure the performance of proposed algorithm, without the assumption of the distribution of cloud providers’ bids. The results prove that the proposed online reverse auction-based algorithm is the appropriate mechanism because it allows the cloud user agent to make purchase decisions without knowing the future bids. The difference of auction rounds and transaction cost can impressively influence and improve the performance of the proposed reverse auction algorithm.

A BEST POSSIBLE ONLINE ALGORITHM FOR SCHEDULING TO MINIMIZE MAXIMUM FLOW-TIME ON BOUNDED BATCH MACHINES

2014 ◽  
Vol 31 (04) ◽  
pp. 1450030 ◽  
Author(s):  
CHENGWEN JIAO ◽  
WENHUA LI ◽  
JINJIANG YUAN
Keyword(s):  
Competitive Ratio ◽  
Completion Time ◽  
Online Algorithm ◽  
Unit Length ◽  
Maximum Flow ◽  
Flow Time ◽  
Release Time ◽  
Batch Machine ◽  
The Difference ◽  
Over Time

We consider online scheduling of unit length jobs on m identical parallel-batch machines. Jobs arrive over time. The objective is to minimize maximum flow-time, with the flow-time of a job being the difference of its completion time and its release time. A parallel-batch machine can handle up to b jobs simultaneously as a batch. Here, the batch capacity is bounded, that is b < ∞. In this paper, we provide a best possible online algorithm for the problem with a competitive ratio of [Formula: see text].

scholarly journals A Cloud-User Protocol Based on Ciphertext Watermarking Technology

2017 ◽  
Vol 2017 ◽  
pp. 1-14 ◽  
Author(s):  
Keyang Liu ◽  
Weiming Zhang ◽  
Xiaojuan Dong
Keyword(s):  
Cloud Computing ◽  
Service Providers ◽  
Hamming Distance ◽  
Cloud Service ◽  
Third Party ◽  
Plain Text ◽  
Privacy Leakage ◽  
Cloud Computing Service ◽  
The Right ◽  
Cloud User

With the growth of cloud computing technology, more and more Cloud Service Providers (CSPs) begin to provide cloud computing service to users and ask for users’ permission of using their data to improve the quality of service (QoS). Since these data are stored in the form of plain text, they bring about users’ worry for the risk of privacy leakage. However, the existing watermark embedding and encryption technology is not suitable for protecting the Right to Be Forgotten. Hence, we propose a new Cloud-User protocol as a solution for plain text outsourcing problem. We only allow users and CSPs to embed the ciphertext watermark, which is generated and embedded by Trusted Third Party (TTP), into the ciphertext data for transferring. Then, the receiver decrypts it and obtains the watermarked data in plain text. In the arbitration stage, feature extraction and the identity of user will be used to identify the data. The fixed Hamming distance code can help raise the system’s capability for watermarks as much as possible. Extracted watermark can locate the unauthorized distributor and protect the right of honest CSP. The results of experiments demonstrate the security and validity of our protocol.

scholarly journals PENGARUH FISKAL MONETER TERHADAP PEREKONOMIAN INDONESIA

2020 ◽  
Vol 2 (2) ◽  
pp. 203-226
Author(s):  
Rio Kartika Supriyatna ◽  
Dedi Junaedi ◽  
Evinovita Evinovita
Keyword(s):  
Exchange Rate ◽  
Standard Error ◽  
System Reform ◽  
Monetary Stability ◽  
The Exchange Rate ◽  
The Difference ◽  
And Performance ◽  
The Right ◽  
Better Than ◽  
Budget System

ABSTRACTThis study aims to: analyze whether monetary fiscal policy affects the economy (GDP) of Indonesia and examine whether differences in the budget regime affect the fiscal fiscal governance in supporting the achievement of Indonesia's GDP. Research using quantitative analysis methods; The data used are time series 1990-2010, the analysis technique used is multiple regression with dummy variables. The results show that monetary stability - represented by the variable APBN, financing, investment, BI-rate, exports, imports, inflation, exchange rates and budget regime differences - simultaneously significantly influences GDP development. The level of correlation between the independent variables and the variable variable is quite strong with R-squared 0.9969%. This means that the research variables can explain the dynamics of GDP around 99.69%, the effect is influenced by other variables not examined. Partially, from the results of the statistical analysis, it was found that the APBN, investment, BI-Rate, Imports and the exchange rate had an effect and the difference in the budget system regime had a significant effect on the development of GDP. While the variable financing, exports and inflation have no significant effect on GDP. Cost variables can have a real impact if the standard error is raised to 19%. Exports can significantly affect GDP if the standard error is raised to 24%. APBN, investment, BI-Rate and budget regime differences are positively correlated to GDP. While imports and the exchange rate are negatively correlated to GDP. The econometric model of the influence of oneter stability with GDP is as follows: GDP $ = 0.3131 * APBN + 1.8437 * INVEST $ + 7.8384 * BI_RATE - 0.00037 * IMPORT - 0.01226 * EXCHANGE $ + 167.02356 * REZIM1 + 181.1681 * REZIM2 + 197.6315. Relatively, the use of an integrated and performance-based budgeting system is better than a balanced budget system. Likewise the performance-based budgeting system is also relatively better than the integrated budgeting system. This means that the budget system reform in Indonesia has been on the right track so far.Keywords: Indonesia, economy, GDP, budget system, monetary stability

The MPI and OpenMP Implementation of Parallel Algorithm for Generating Mandelbrot Set

2014 ◽  
Vol 571-572 ◽  
pp. 26-29
Author(s):  
Xiang Wei Duan ◽  
Wei Chang Shen ◽  
Jun Guo
Keyword(s):  
Parallel Algorithm ◽  
Shared Memory ◽  
Message Passing ◽  
Message Passing Interface ◽  
Algorithm Design ◽  
Performance Testing ◽  
Mandelbrot Set ◽  
The Difference ◽  
And Performance

The paper introduce the Mandelbrot Set and the message passing interface (MPI) and shared-memory (OpenMP), analyses the characteristic of algorithm design in the MPI and OpenMP environment, describes the implementation of parallel algorithm about Mandelbrot Set in the MPI environment and the OpenMP environment, conducted a series of evaluation and performance testing during the process of running, then the difference between the two system implementations is compared.

scholarly journals PENGARUH FISKAL MONETER TERHADAP PEREKONOMIAN INDONESIA

2020 ◽  
Vol 2 (2) ◽  
pp. 203-226
Author(s):  
Rio Kartika Supriyatna ◽  
Dedi Junaedi ◽  
Evinovita Evinovita
Keyword(s):  
Exchange Rate ◽  
Standard Error ◽  
System Reform ◽  
Monetary Stability ◽  
The Exchange Rate ◽  
The Difference ◽  
And Performance ◽  
The Right ◽  
Better Than ◽  
Budget System

ABSTRACTThis study aims to: analyze whether monetary fiscal policy affects the economy (GDP) of Indonesia and examine whether differences in the budget regime affect the fiscal fiscal governance in supporting the achievement of Indonesia's GDP. Research using quantitative analysis methods; The data used are time series 1990-2010, the analysis technique used is multiple regression with dummy variables. The results show that monetary stability - represented by the variable APBN, financing, investment, BI-rate, exports, imports, inflation, exchange rates and budget regime differences - simultaneously significantly influences GDP development. The level of correlation between the independent variables and the variable variable is quite strong with R-squared 0.9969%. This means that the research variables can explain the dynamics of GDP around 99.69%, the effect is influenced by other variables not examined. Partially, from the results of the statistical analysis, it was found that the APBN, investment, BI-Rate, Imports and the exchange rate had an effect and the difference in the budget system regime had a significant effect on the development of GDP. While the variable financing, exports and inflation have no significant effect on GDP. Cost variables can have a real impact if the standard error is raised to 19%. Exports can significantly affect GDP if the standard error is raised to 24%. APBN, investment, BI-Rate and budget regime differences are positively correlated to GDP. While imports and the exchange rate are negatively correlated to GDP. The econometric model of the influence of oneter stability with GDP is as follows: GDP $ = 0.3131 * APBN + 1.8437 * INVEST $ + 7.8384 * BI_RATE - 0.00037 * IMPORT - 0.01226 * EXCHANGE $ + 167.02356 * REZIM1 + 181.1681 * REZIM2 + 197.6315. Relatively, the use of an integrated and performance-based budgeting system is better than a balanced budget system. Likewise the performance-based budgeting system is also relatively better than the integrated budgeting system. This means that the budget system reform in Indonesia has been on the right track so far.Keywords: Indonesia, economy, GDP, budget system, monetary stability

The Quantitative Nature of a Visual Task Differentiates between Ventral and Dorsal Stream

2002 ◽  
Vol 14 (4) ◽  
pp. 646-658 ◽  
Author(s):  
Wim Fias ◽  
Patrick Dupont ◽  
Bert Reynvoet ◽  
Guy A. Orban
Keyword(s):  
Visual Processing ◽  
Premotor Cortex ◽  
Dorsal Stream ◽  
Positron Emission ◽  
Cognitive Operations ◽  
Single Attribute ◽  
The Difference ◽  
And Performance ◽  
The Right ◽  
Quantitative Nature

The aim of the present positron emission tomography (PET) study was to investigate how visual processing in dorsal and ventral streams depends on the quantitative nature of the task. In the same—different task, participants identified the presence of an orientation difference between two gratings, presented centrally in succession. In the quantification task, participants estimated the magnitude of the difference and compared it to a fixed standard. Detection of dimming of the fixation point was used as a control task. Visual input, motor responses, and performance were equated across tasks. Subtracting same— different from quantification yielded significant activation in the left superior parietal lobule and left ventral premotor cortex, consistent with results obtained in number-processing tasks. The reverse subtraction yielded activation in the right inferior temporal gyrus, in agreement with earlier results. These results demonstrate that a single attribute can be processed either in the ventral or dorsal stream, depending on the cognitive operations required by the tasks.

Legal Update: North Dakota Supreme Court: Third Edition of Guides is “Most Current”

1999 ◽  
Vol 4 (1) ◽  
pp. 6-7
Author(s):  
James J. Mangraviti
Keyword(s):  
Internal Rotation ◽  
External Rotation ◽  
Measurement Techniques ◽  
Fourth Edition ◽  
Hip Motion ◽  
The Difference ◽  
The Right ◽  
Hip Flexion ◽  
Hip Rotation ◽  
Hip Extension

Abstract The accurate measurement of hip motion is critical when one rates impairments of this joint, makes an initial diagnosis, assesses progression over time, and evaluates treatment outcome. The hip permits all motions typical of a ball-and-socket joint. The hip sacrifices some motion but gains stability and strength. Figures 52 to 54 in AMA Guides to the Evaluation of Permanent Impairment (AMA Guides), Fourth Edition, illustrate techniques for measuring hip flexion, loss of extension, abduction, adduction, and external and internal rotation. Figure 53 in the AMA Guides, Fourth Edition, illustrates neutral, abducted, and adducted positions of the hip and proper alignment of the goniometer arms, and Figure 52 illustrates use of a goniometer to measure flexion of the right hip. In terms of impairment rating, hip extension (at least any beyond neutral) is irrelevant, and the AMA Guides contains no figures describing its measurement. Figure 54, Measuring Internal and External Hip Rotation, demonstrates proper positioning and measurement techniques for rotary movements of this joint. The difference between measured and actual hip rotation probably is minimal and is irrelevant for impairment rating. The normal internal rotation varies from 30° to 40°, and the external rotation ranges from 40° to 60°.

A Modification of the Payne-Jones Method of Identifying Abnormal Differences in WISC-R Performance and Verbal IQ's

1996 ◽  
Vol 12 (1) ◽  
pp. 27-32 ◽  
Author(s):  
Louis M. Hsu
Keyword(s):  
Full Scale ◽  
True Score ◽  
Verbal Iq ◽  
Score Difference ◽  
The Difference ◽  
And Performance

The difference (D) between a person's Verbal IQ (VIQ) and Performance IQ (PIQ) has for some time been considered clinically meaningful ( Kaufman, 1976 , 1979 ; Matarazzo, 1990 , 1991 ; Matarazzo & Herman, 1985 ; Sattler, 1982 ; Wechsler, 1984 ). Particularly useful is information about the degree to which a difference (D) between scores is “abnormal” (i.e., deviant in a standardization group) as opposed to simply “reliable” (i.e., indicative of a true score difference) ( Mittenberg, Thompson, & Schwartz, 1991 ; Silverstein, 1981 ; Payne & Jones, 1957 ). Payne and Jones (1957) proposed a formula to identify “abnormal” differences, which has been used extensively in the literature, and which has generally yielded good approximations to empirically determined “abnormal” differences ( Silverstein, 1985 ; Matarazzo & Herman, 1985 ). However applications of this formula have not taken into account the dependence (demonstrated by Kaufman, 1976 , 1979 , and Matarazzo & Herman, 1985 ) of Ds on Full Scale IQs (FSIQs). This has led to overestimation of “abnormality” of Ds of high FSIQ children, and underestimation of “abnormality” of Ds of low FSIQ children. This article presents a formula for identification of abnormal WISC-R Ds, which overcomes these problems, by explicitly taking into account the dependence of Ds on FSIQs.

Implementasi Sistem Informasi Monitoring Pengolahan Data Inventory Gudang Pada PT.Talaga Mulya Indah

2020 ◽  
Vol 6 (2) ◽  
pp. 187-197
Author(s):  
Nurlaila Suci Rahayu Rais ◽  
Dedeh Apriyani ◽  
Gito Gardjito
Keyword(s):  
Data Processing ◽  
Integrated Control ◽  
Unified Modeling Language ◽  
Review Literature ◽  
Analysis Method ◽  
Inventory Data ◽  
Literature Study ◽  
Unified Modeling ◽  
The Difference ◽  
The Right

Monitoring of warehouse inventory data processing is an important thing for companies. PT Talaga mulya indah is still manual using paper media, causing problems that have an effect on existing information, namely: problems with data processing of incoming and outgoing goods. And the difference between data on the amount of stock of goods available with physical data, often occurs inputting data more than once for the same item, searching for available data, and making reports so that it impedes companies in monitoring inventory of existing stock of goods. Which aims to create a system that can provide updated information to facilitate the warehouse admin in making inventory reports, and reduce errors in input by means of integrated control. In this study, the authors used the data collection method used in this analysis using the method of observation, interviews, and literature review (literature study). For analysis using the PIECES analysis method. Furthermore, the system design used is UML (Unified Modeling Language). The results of this study are expected to produce the right data in the process of monitoring inventory data processing, also can provide the right information and make it easier to control the overall availability of goods.

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