Do you want to publish a course? Click here

Study of Data Size Changing Effect on Performance of Cloud, Hybrid, And Traditional DBMSs

دراسة تأثير تغير حجم البيانات على أداء نظم إدارة قواعد البيانات السحابية و الهجينة و التقليدية

2057   1   273   0 ( 0 )
 Publication date 2015
and research's language is العربية
 Created by Shamra Editor




Ask ChatGPT about the research

With the rapid growth of the size of the data stored in the cloud systems, the need for effective data processing becomes critical and urgent. This research introduces a study of the most important characteristics of databases management systems: Hive, SQLMR, and MariaDB Galera. Hive is a cloud database management system. SQLMR is a hybrid system, which depends on the integration between the cloud and traditional systems capabilities. While MariaDB Galera is a traditional database management system developed to cope with the cloud characteristics. In this research, we show the most important developments that have been on those systems, and then we compare their performance in data processing based on the execution time of query operations with the change of the volume of data. That is to identify the performance of those systems practically and to know the developing requirements for access to optimized data management system, and to help users in the selection of the database system that achieves their requirements in terms of availability and scalability.

References used
MELL, P.; GRANCE, T., The NIST Definition of Cloud Computing. NIST Special Publication 800-145, September 2011
SADASHIV,N.; KUMAR, S. M.D., Cluster, Grid and Cloud Computing: A Detailed Comparison, The 6th International Conference on Computer Science & Education, SuperStar Virgo, Singapore (ICCSE 2011) August 3-5, 2011
FURHT, B.; ESCALANTE, A., Hand Book of Cloud Computing. Springer, 2010, pp: 3-45
rate research

Read More

Pre-trained neural language models give high performance on natural language inference (NLI) tasks. But whether they actually understand the meaning of the processed sequences is still unclear. We propose a new diagnostics test suite which allows to assess whether a dataset constitutes a good testbed for evaluating the models' meaning understanding capabilities. We specifically apply controlled corruption transformations to widely used benchmarks (MNLI and ANLI), which involve removing entire word classes and often lead to non-sensical sentence pairs. If model accuracy on the corrupted data remains high, then the dataset is likely to contain statistical biases and artefacts that guide prediction. Inversely, a large decrease in model accuracy indicates that the original dataset provides a proper challenge to the models' reasoning capabilities. Hence, our proposed controls can serve as a crash test for developing high quality data for NLI tasks.
Ad-hoc networks has opened a new dimension in wireless networks. It allows wireless communication in the absence of central support of the contract. In these networks, there are no fixed infrastructure because the mobile nodes are continuously mak ing continuous and dynamic change in the topology. Routing protocols of mobile ad-hoc networks differ from the existing internet protocols which are designed for the fixed structure based wireless networks. MANET protocols have to face high challenges due to dynamically changing of topologies, low transmission power and asymmetric links. Due to link instability, node mobility and frequently changing topologies routing becomes one of the core issues in MANETs. Currently existent routing protocols provide routing solutions up to a certain level and most of them are designed and implemented in small areas. Many researchers are still working on the developments of MANET routing protocols. With the increase in the types of routing protocols used in mobile network it has become necessary to study the effectiveness of each type of protocols In this papper we compared between the most famous species (proactive, Reactive, hybrid) and choose a protocol to be representative of all species previously mentioned and the network performance assessment each type in terms of Throughput, dynamic routing routing, load, delay and determine which of these protocols appropriate for each case.
In this paper, we assess the Voice Over Internet Protocol performance by comparing the performance of two protocols used in VOIP such as SIP and H.323. Moreover, we evaluate the quality indicators such as delay and packets loss. For this purpose OPNET simulator is used as suitable simulation technology.
This paper presents the producing of touristic tour using tourist data and management the data in GIS environment by using the extension network analyst in ARCGIS to find the better time routine with time as obstacle. The base map was the tourist m ap for Tartous with scale 1:250 000. DTM and several three dimension data was generated for studying area for helping people to know nature of the area, by using the topographic map for Tartous with scale 1/250000 . Also, in this research the spatial tourist data base was generated for Tartous province using GIS which contains data about road, town, ruins sites, services ( like oil stations, restaurants and hotels and others serve the tourist). Network analyst was applied on ruins sites in Tartous province to calculate the better routine from the hotel to supposed several ruins sites. The integration between tourist data and ArcGIS software with its extension network analyst can help for obtaining better touristic services by determining the better touristic tour to visit the desirable touristic sites in short time.
This research presents a study with the help of Finite Element Method and the use of CATIA V5 program to know the behavior of a permissible link - column used in metal structures at high temperatures (on fire). In this article we will present an an alysis using the finite element method using the CATIA V5 program for the effect of different engineering parameters (plate thickness, screw diameter, reinforcement nerves) on the behavior of joints used in metal structures on fire. We also studied the effect of the number of bolts on the stresses and transitions in the link and their comparison with the welding cases. We studied and analyzed the studied model and obtained the deformation and failure schemes at high temperatures, the flow charts and the temperatures that show the behavior of this link to the fire. We also obtained the stress and strain schemes for the link and the transport and load schemes at different temperatures and the behavior of this link at these different temperature.
comments
Fetching comments Fetching comments
Sign in to be able to follow your search criteria
mircosoft-partner

هل ترغب بارسال اشعارات عن اخر التحديثات في شمرا-اكاديميا