Dear
CCSE Community,
You
are cordially invited to attend the following seminars:
Wednesday,
March 5, at 2:10 pm, Room 22/132.
Speaker: Mr. Tariq Abu Amria , COE Department
Title: The Evolution of MAC Protocols in Wireless Sensor Networks
Abstract
Wireless Sensor Networks have become a
very popular solution in many important applications such as intrusion
detection, industrial automation, target detection and tracking, environmental
monitoring, smart building, and oil pipeline monitoring and so on. Typically, a
WSN consists of a large number of small, low-cost sensor nodes with limited
power supply that are distributed in the target area for collecting data of
interest. For a WSN to provide high throughput in an energy-efficient way,
designing an efficient MAC (Medium Access Control) protocol is of paramount
importance because the MAC layer coordinates nodes’ access to the shared
wireless medium. To show the evolution of WSN MAC protocols, this presentation
shows the latest progresses in WSN MAC protocol. In the early development
stages, designers were mostly concerned with energy efficiency because sensor
nodes are usually limited in power supply. Recently, new protocols are being
developed to provide multitask support and efficient delivery of bursty
traffic. Therefore, research attention has turned back to throughput and delay.
In This presentation categorizes MAC protocols in four categories:
asynchronous, synchronous, frame-slotted, and multichannel. These designs are
evaluated in terms of energy efficiency, data delivery performance, and
overhead needed to maintain a protocol’s mechanisms. With extensive analysis of
the protocols many future directions are stated at the end. The performance of
different classes of protocols could be substantially improved in future
designs by taking into consideration the recent advances in technologies and
application demands.
Biography
Eng.
Tariq abu amria received the B.S. degree from Alquds University, alquds,
Palestine, in 2007, in Computer Engineering, he worked at networks and system
administrator for a local companies in Palestine, and he earned Microsoft
certified system engineer, and redhat system administrator. Currently he
pursues a master science in computer networks in king Fahd University of
petroleum and minerals. His research area is a wireless sensor networks media
access control and routing protocol, which are aimed to offer a protocol with
QoS.
Speaker: Mr. Alnethary Tamim S. , ICS Department
Title: Integrating lemma and POS in Real-Word Errors Detection and
Correction in Arabic text
Abstract
Two types of errors can occur in a text:
non-word errors and real-word errors. Non-word errors result from misspelled
words and real-word errors result from using words in inappropriate contexts.
Detection and correction of non-word errors is easier than real-word errors. This
is because real-word errors detection and correction requires understanding the
contexts of erroneous words. In this Seminar, the author will show 4
enhancements to one of an existing approaches. The impact
of integration each one of these enhancements is evaluated separately . The
results proves the usefulness of introduction of lemmas in
suspicious words checking and proves that the use of lemma-based N-grams is not
useful in real-word error detection and correction. Furthermore, it proves that
using POS in real-word error detection and correction are not useful,
especially with large corpora.
Biography
Mr. Alnethary Tamim S. has received a Bachelor degree in Information
Technology (2008), from Faculty of Engineering,Taiz University , Yemen. He is
currently an information and computer science master student at King Fahd
University of Petroleum and Minerals(KFUPM). His research interests are in
Artificial Intelligence , Natural Language Processing ,and Software
Engineering. He hopes to apply Pattern Recognition and AI techniques on
Software Engineering problems.
Dr.
Muhamed Mudawar and Dr. Mahmood Niazi,
COE
599/CSE699/ICS 599/SWE 599 Coordinators