نتایج جستجو برای: relational and uncertain data streams
تعداد نتایج: 17034420 فیلتر نتایج به سال:
abstract although music possesses some kind of power and using it has been welcome by many students in language classrooms, it seems that they take a non-serious image of the lesson while listening to songs and they may think that it is a matter of fun. the main objective of the present study was to investigate whether learning a foreign language through musical texts (songs) can have an impac...
Applications requiring the handling of urzcertain data have led to the developmerlt of database management systerns extending the scope of relational databases to include uncertain (probabilistic) data as a izative data type. New automatic query optirnizatiorzs having the ability to estimate the cost of execution of a given query plan, as available in existing databases, need to be developed. F...
STREAM is the Data Stream Management System (DSMS) developed at Stanford University. It supports a large class of declarative continuous queries over continuous data streams as well as relational databases. This report is a introduction to STREAM. It is based on the publications on STREAM [1, 2, 3, 4, 5], and focuses on semantics and implementation of continuous query, and techniques used in ST...
this research aims at answering the questions about translation problems and strategies applied by translators when translating cultural concepts. in order to address this issue, qualitative and quantitative study were conducted on two groups of subjects at imam reza international university of mashhad. these two groups were assigned as beginner and advanced translation students (10 students). ...
on- the-job training on of the most effective tools for managers to cope with the changing organizational environment. it grantess suitable services to customers, particularly in public service enterprises. if such training os goal oriented, planned systematically, and tailored to the employees, job content, then not only it could increase employees and organizational performance, but also it c...
this study attempts to investigate the effect of peers’ revision in comparison to that of the teacher, and whether peers’ comments and teachers’ comments facilitate students’ revision? if yes, which one is more effective? also attempts have been made to see which aspects of language are more highlighted by peers versus teachers when commenting. besides, it is investigating the student’s attitud...
INTRODUCTION A major goal for database research has been the incorporation of additional semantics into the data model. Classical data models often suffer from their incapability of representing and manipulating imprecise and uncertain information that may occur in many real-world applications. Since the early 1980s, Zadeh's fuzzy logic (Zadeh, 1965) has been used to extend various data models....
abstract the present research is prepared to study the culture of tea consuming among iranian. the case group which was statistically used for this study was people of lahijan , about four hundred wich were chosen according to their age , gender , education and occupation , randomly selected to fill the questionnaire . then the data collected through the questionnaire was analyzed according ...
the west of esfahan province, iran, is one of the most important agricultural areas throughout the country due to the climate variability and life-giving water of zayanderood river. rice is one of the major and economic crops in this area. the most important climatic elements in agricultural activities which should be considered include temperature, relative humidity, precipitation and wind. so...
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