Subscribe to the gold package and get unlimited access to Shamra Academy
Register a new userA comparative study of compression algorithms and their impact on data communication in networks
دراسة مقارنة لخوارزميات الضغط و أثرها على تراسل المعطيات في الشبكات
1119
0 13
0.0
(
0
)
Added by
Tishreen University ورقة بحثية
Publication date
2018
fields
Electrical Power Engineering
and research's language is
العربية
Authors
دريد عجيب( باحث )
Created by
Shamra Editor
Ask ChatGPT about the research
نظرا للتزايد الكبير لاستخدام تراسل البيانات و خدمات تبادل المعلومات بأنواع مختلفة ضمن بيئات متباينة عتادياً و برمجياً كان لابد من وجود لغة توصيف مثالية قابلة للتوسع و التطوير تخدم هذه الاحتياجات المتزايدة بأفضل شكل و بأقصر وقت ممكن و كانت اللغة الاكثر انتشاراً و الأكثر استخداماً لغة XML. كما أن اعتماد بنية الرسوميات احياناً خلق مشكلة أثرت على أداء شبكات نقل المعلومات نظرا للحجم الكبير للبيانات المتبادلة و كذلك الحاجة لسعة تخزينية كبيرة في طرفي الارسال و الاستقبال لذا كان لابد من إيجاد طرق فعالة لإنقاص حجم تلك البيانات التي يتم تبادلها من خلال الشبكة. تم إجراء العديد من الأبحاث العلمية و التجارب العملية حول إيجاد طرق فعالة لإنقاص الحجم الفعلي للبيانات و باعتماد بارامترات مختلفة تؤثر على عملية ضغط الملفات بحيث تحقق نتائج أفضل بالتقليل من حجوم الملفات المتبادلة مع الانتباه الى أزمنة ضغط و فك الضغط للملفات. لذا تم التركيز في هذا البحث على دراسة و مقارنة لبعض خوارزميات الضغط للملفات و بيان أثرها على تراسل البيانات في الشبكات.
Due to the large increase in the use of data communication and information exchange services of different types in different environments, the standard and the programming had to be a language of characterization is ideal for scalability and development that serve the growing needs in the best form and in the shortest possible time and was the most widely used language and the most widely used XML language. he adoption of graphics architecture sometimes created a problem affecting the performance of information transmission networks due to the large volume of data exchanged as well as the need for large storage capacity at both ends of the transmission and reception. Effective ways of reducing the amount of data exchanged through the network had to be found. There have been many scientific researches and practical experiments on finding effective ways to reduce the actual size of the data and by adopting different parameters that affect the process of compressing the files so as to achieve better results by reducing the volumes of files exchanged with attention to times of compression and decompression of files. In this research, we focused on the study and comparison of some compression algorithms for files and their effect on data communication in networks.
Artificial intelligence review:
Research summary
تتناول هذه الدراسة المقارنة بين خوارزميات الضغط المختلفة وتأثيرها على تراسل البيانات في الشبكات. مع تزايد استخدام لغة XML في تبادل البيانات عبر الشبكات، ظهرت الحاجة إلى تقنيات ضغط فعالة لتقليل حجم البيانات المرسلة والمستقبلة. يركز البحث على مقارنة خوارزميات مثل GZip وXMill وXGrind من حيث معدل الضغط، زمن الضغط، وزمن فك الضغط. أظهرت النتائج أن خوارزمية XMill تحقق أفضل معدل ضغط وأقل زمن للضغط مقارنة بخوارزمية XGrind، بينما خوارزمية GZip توفر معدل ضغط جيد ولكنها قد تكون أقل كفاءة في بعض الحالات. توصي الدراسة باستخدام خوارزمية XMill خاصة للملفات الكبيرة، مع إمكانية استخدام أكثر من خوارزمية لضمان أفضل أداء.
Critical review
دراسة نقدية: تعتبر هذه الدراسة مهمة في مجال تحسين أداء الشبكات من خلال تقنيات الضغط، ولكن كان من الممكن أن تكون أكثر شمولية إذا تناولت المزيد من الخوارزميات الحديثة. كما أن الدراسة تركز بشكل كبير على لغة XML، وكان من الممكن أن تشمل لغات أخرى أو أنواع بيانات مختلفة. بالإضافة إلى ذلك، كان يمكن تحسين الدراسة بإجراء تجارب على نطاق أوسع من البيانات لتقديم نتائج أكثر دقة وشمولية.
Questions related to the research
-
ما هي الخوارزمية التي حققت أفضل معدل ضغط في الدراسة؟
خوارزمية XMill حققت أفضل معدل ضغط في الدراسة.
-
ما هي أهمية استخدام تقنيات الضغط في شبكات البيانات؟
تقنيات الضغط تقلل من حجم البيانات المرسلة والمستقبلة، مما يحسن من أداء الشبكة ويقلل من زمن الإرسال والتخزين.
-
ما هي العيوب المحتملة لخوارزمية GZip وفقًا للدراسة؟
خوارزمية GZip قد تكون أقل كفاءة في بعض الحالات، خاصة عند التعامل مع ملفات كبيرة الحجم.
-
ما هي التوصيات التي خلصت إليها الدراسة بشأن استخدام خوارزميات الضغط؟
توصي الدراسة باستخدام خوارزمية XMill للملفات الكبيرة، مع إمكانية استخدام أكثر من خوارزمية لضمان أفضل أداء.
References used
SOHAIL ANSARI ; PRAJEET SHARMA , XML Optimization and Compression , International Journal of Innovations & Advancement in Computer Science , March 2015
SHERIF SAKR , Investigate state-of-the-art XML compression techniques , IBM Corporation , 19 July 2011
WILFRED NG ; WAI-YEUNG LAM ; JAMES CHENG , Comparative Analysis of XML Compression Technologies , March 2006
rate research
Read More
Wireless sensor networks (WSNs) are often deployed by random bestrewing
(airplane bestrewing for example). A majority of nodes cannot obtain their coordinate
beforehand. Therefore, how to obtain the position information of unknown nodes, which is
called localization problem, has become a hot topic in WSN.
Without position information, WSN cannot work properly. Global Position System
(GPS) is the most extensive and mature position system at present. But because the nodes
usually have the shortcoming of high expenditure, large volume, high cost and require
settled basal establishment, therefore, the GPS is inapplicable for the low-cost selfconfigure
sensor networks, and also it is impossible to install GPS for each sensor node. In
this paper, we will study localization mechanisms (which is not based on GPS) used in
WSN, and will test the effectiveness of using MUSIC algorithm in determining the signal
arrival angel depending on the SDMA- technology and ESPAR antenna.
The ability of data mining to provide predictive information
derived from huge databases became an effective tool in the hands
of companies and individuals، allowing them to focus on areas that
are important to them from the massive data generated
by the
march of their daily lives. Along with the increasing importance of
this science there was a rapidly increasing in the tools that produced
to implement the theory concepts as fast as possible. So it will be
hard to take a decision on which of these tools is the best to
perform the desired task. This study provides a comparison
between the two most commonly used data mining tools according
to opinion polls، namely: Rapidminer and R programming language
in order to help researchers and developers to choose the best suited
tool for them between the two. Adopted the comparison on seven
criteria: platform، algorithms، input/output formats، visualization،
user’s evaluation، infrastructure and potential development، and
performance by applying a set of classification algorithms on a
number of data sets and using two techniques to split data set: cross
validation and hold-out to make sure of the results. The Results
show that R supports the largest number of algorithms، input/output
formats، and visualization. While Rapidminer superiority in terms
of ease of use and support for a greater number of platforms. In
terms of performance the accuracy of classification models that
were built using the R packages were higher. That was not true in
some cases imposed by the nature of the data because we did not
added any pre-processing stage. Finally the preference option in
any tool is depending on the extent of the user experience and
purpose that the tool is used for
Application-Level Multicast (ALM) has been proposed as an alternative solution to
overcome the lack of deployment of the IP Multicast group communication model. It
builds an overlay tree consisting of end-to-end unicast connections between end-host
s
based on the collaboration of group members with each other. The efficiency of the
constructed overlay tree depends entirely on the honesty and on the cooperation of all
participating members. However such behaviour can not be guaranteed and some selfish
and non-cooperative nodes may take profit from the honesty of other members in the
overlay.
Recently, many researchers have been investigating the impact of selfishness of
nodes in the overlay multicast. Our contribution in this paper is to describe in detail the
basic algorithms used to construct the overlay tree, and evaluate the impact of cheating
nodes on the stability and on the performance of constructed overlay tree using these
algorithms.
Many studies have tried to determine the impact of change orders on the cost and
time of the project, which in turn leads to differences and disputes between contractors and
owners. Where change orders dealt with in various engineering projects.
T
his search displays formal causes of change orders occurring during the life cycle of
the project in Syrian coastal zone. Particular building projects are studied, and the most
important impact on completion of the project indicators (cost_time) is discussed. Also
identifies the party responsible for the change, and shows the weak points during follow
the change order life cycle and provides recommendations for each of the responsible
parties, stressing the need to monitor performance in order to manage change order and
address the causes and impact alleviation. The prediction models were drafted at additional
cost that may result from change orders.
The sound is an essential component of multimedia, and due to the needto be used in
many life applications such as television broadcasting andcommunication programs, so it
was necessary for the existence of audio signal processing techniquessuch as
compressing,
improving, and noisereduction.
Data compression process aims to reduce the bit rate used, by doing encoding
information using fewer bits than the original representation for transmitting and storing.
By this process,the unnecessary information is determined and removed, that means it
gives the compressed information for useable compression, which we need as a
fundamental, not the minutest details.
This research aims to study how to process sound and musical signal. It's a process
that consists of a wide range of applications like coding and digital compression for the
effective transport and storage on mobile phones and portable music players, modeling and
reproduction of the sound of musical instruments and music halls and the harmonics of
digital music, editing digital music, and classification of music content, and other things.
Log in to be able to interact and post comments
comments
Fetching comments
Sign in to be able to follow your search criteria
