نتایج جستجو برای: statistical databases

تعداد نتایج: 471272  

Journal: :Softw., Pract. Exper. 2010
Ebaa Fayyoumi B. John Oommen

This paper surveys the fields of Statistical Disclosure Control (SDC) and MicroAggregation Techniques (MATs), which are both areas fundamental to the science of secure Statistical DataBases (SDBs). The paper is written from the perspective of a computer scientist with the hope that it will prove to be a source of reference material useful to researchers and practitioners in the field. The paper...

2017
Óscar Corcho Idafen Santana Pérez Hugo Lafuente David Portolés César Cano Alfredo Peris José María Subero

During recent years, organizations and governmental bodies are adopting Linked Data as the publication paradigm for publishing statistical data, moving from CSV and PDF files and relational databases to a more interoperable and accessible system for the web. In this work we introduce the data generation system implemented by the statistical office in the Spanish region of Aragón. The system con...

2009
Karen Villaverde Olga Kosheleva

In many application areas, e.g., in medical applications, it is important to be able to get statistical information about the data without disclosing individual cases. One of the methods to preserve privacy in such statistical databases is to introduce uncertainty, i.e., to replace the exact values with intervals of possible values. In this talk, we show that while the introduction of uncertain...

2001
Torsten Hothorn

Connectivity is an increasingly important part of statistical computing, and interfaces to databases are becoming important both in large-scale data mining applications and from the use of smaller personal databases. In this paper we present current work and future plans on interfacing the S language (R and S-PLUS) to databases, in particular to relational database management systems (DBMS).

2007
Luis Talavera

Recently, Knowledge Discovery on Databases (KDD) has emerged as a promising research area encompassing methods from several disciplines. Particularly, the data mining step of KDD shares most of its goals with unsupervised learning. But data mining methods are biased towards statistical techniques arguing that Machine Learning (ML) methods are not suitable to deal with real-world databases. We c...

Journal: :مدیریت اطلاعات سلامت 0
صغری گلمغانی زاده اصل کارشناس، علم اطلاعات و دانش شناسی، مدیریت فن آوری اطلاعات، ستاد مرکزی، دانشگاه علوم پزشکی اردبیل، اردبیل، ایران مجتبی امانی دانشیار، بیوفیزیک، گروه بیوشیمی، دانشکده پزشکی، دانشگاه علوم پزشکی اردبیل، اردبیل، ایران علیرضا محمدنیا مربی، کامپیوتر، گروه علوم پایه، دانشکده پزشکی، دانشگاه علوم پزشکی اردبیل، اردبیل، ایران

introduction: today, in the era of information, the main parameter for scientific assessment of countries, and academic centers is their contributions to the development of science and technology. this study was conducted to evaluate scientific outcomes of ardabil university of medical sciences and its faculty members until the end of july 2014. methods: in a descriptive study on bibliographic ...

Journal: :مدیریت اطلاعات سلامت 0
محمدرضا علی بیک مربی، کتابداری و اطلاع رسانی پزشکی، دانشگاه علوم پزشکی تهران، تهران، ایران. روح انگیز جمشیدی اورک استادیار، آمار زیستی، دانشگاه علوم پزشکی تهران، تهران، ایران. لیلا اصغری هینه آباد دانشجوی کارشناسی ارشد، کتابداری و اطلاع رسانی پزشکی، دانشگاه علوم پزشکی تهران، تهران، ایران

introduction: determining the overlap rates is a quantitative method to compare database contents. in this survey, traditional overlap, relative overlap and synthetic degrees of freedom between pubmed as a free database and scopus as a subscription-based one in the cardiovascular disease field have been determined. methods: this descriptive applied research was done during january to june 2009....

Journal: :مدیریت اطلاعات سلامت 0
رسول سعادت کارشناس ارشد، گروه کتابداری و اطلاع رسانی، پژوهشگاه علوم و فرهنگ اسلامی، قم، ایران احمد شعبانی دانشیار، گروه کتابداری و اطلاع رسانی، دانشگاه اصفهان، اصفهان، ایران. عاصفه عاصمی استادیار، گروه کتابداری و اطلاع رسانی، دانشگاه اصفهان، اصفهان، ایران.

introduction: in order to cope with the crisis of serials cost and problems associated with the shortage of budget in libraries and facilitating the access to scientific journals, the principle of open access to scientific publications and usually in the form of electronic journals has evolved during the last 15 years. this research aimed to clarifying the amount of citations of isi web of scie...

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