نتایج جستجو برای: multiple source data

تعداد نتایج: 3255054  

2013
Xuchen Lu

............................................................................................................ ii Acknowledgements ....................................................................................... iii Table of

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم انسانی 1389

there are two major theories of measurement in psychometrics: classical test theory (ctt) and item-response theory (irt). despite its widespread and long use, ctt has a number of shortcomings, which make it problematic to be used for practical and theoretical purposes. irt tries to solve these shortcomings, and provide better and more dependable answers. one of the applications of irt is the as...

Journal: :فیزیک زمین و فضا 0
ویدا مینائیان کارشناس ارشد مهندسی اکتشاف نفت، دانشکده مهندسی معدن، متالورژی و نفت دانشگاه صنعتی امیرکبیر، تهران، ایران عبدالرحیم جواهریان استاد بازنشسته، گروه فیزیک زمین، مؤسسه ژئوفیزیک، دانشگاه تهران و استاد دانشکده مهندسی نفت دانشگاه صنعتی امیرکبیر، تهران، ایران ابوالفضل مسلمی کارشناس ارشد ژئوفیزیک، شرکت عملیات اکتشاف نفت، تهران، ایران

reflection seismic data consist of primary reflections, coherent and incoherent noises. one of the objectives of seismic data processing is to enhance the quality of the real signals by attenuating different kinds of noises. multiples constitute one of the most troublesome forms of coherent noises in exploration seismology. multiple reflections often destructively interfere with the desired pri...

Journal: :civil engineering infrastructures journal 0
mehdy barandouzi department of civil and environmental engineering, virginia tech, falls church, usa. reza kerachian school of civil engineering and center of excellence for engineering and management of civil infrastructures, college of engineering, university of tehran, tehran, iran

large water distribution systems can be highly vulnerable to penetration of contaminant factors caused by different means including deliberate contamination injections. as contaminants quickly spread into a water distribution network, rapid characterization of the pollution source has a high measure of importance for early warning assessment and disaster management. in this paper, a methodology...

آقا گل زاده, علی, نامجو, احسان , نوشیار, مهدی ,

In MTSC, correlated sources are separately encoded but jointly decoded. With appropriate modeling of all kinds of correlation among three non binary correlated sources, in this paper we propose a method for performing IMTSC among three sources. Due to the possibility of providing an approach for practical code design for more than two correlated sources in IMTSC/CEO setup, the multicast system ...

عاشوری, احمد, محمدزاده, علی,

Objectives Death depression consists of death despair, death loneliness,death sadness, death dread, and death finality. The present study was carried out with the aim of investigating some religious correlates of death depression. Methods In this descriptive analytical study, a sample of 347 participants was selected using stratified sampling method. The participants responded to death obsessi...

Journal: :Proceedings of the VLDB Endowment 2021

Data scientists often develop data sets for analysis by drawing upon sources of available to them. A major challenge is ensure that the set used has an appropriate representation relevant (demographic) groups: it meets desired distribution requirements. Whether collected through some experiment or obtained from provider, any single source may not meet Therefore, a union multiple required. In th...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده علوم 1392

در این پایان نامه ابتدا نمادهای مرتبه و کاربرد این نمادها را معرفی می کنیم و سپس به روش آشفتگی multiple scales همراه با مثالی، پرداخته ایم. در بخش بعدی آن معادلات تفاضلی معمولی و اپراتورها را به طور کامل معرفی کرده ایم و در آخر نیز کاربرد روش آشفتگی multiple scales را برای حل معادلات تفاضلی با ارائه مثال توضیح می دهیم.

2016
Hendrik Vincent Koops W. Bas de Haas Dimitrios Bountouridis Anja Volk

Two heads are better than one, and the many are smarter than the few. Integrating knowledge from multiple sources has shown to increase retrieval and classification accuracy in many domains. The recent explosion of crowdsourced information, such as on websites hosting chords and tabs for popular songs, calls for sophisticated algorithms for data-driven quality assessment and data integration to...

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