Representing and utilizing DDI in relational databases

نویسندگان

  • Alerk Amin
  • Ingo Barkow
  • Stefan Kramer
  • David Schiller
  • Jeremy Williams
چکیده

Alerk Amin, CentERdata [[email protected]] Ingo Barkow, DIPF Leibniz Institute for Educational Research and Educational Information [[email protected]] Stefan Kramer, Cornell Institute for Social and Economic Research [[email protected]] David Schiller, Research Data Center (FDZ) of the German Federal Employment Agency (BA) at the Institute for Employment Research (IAB) [[email protected]] Jeremy Williams, Cornell Institute for Social and Economic Research [[email protected]]

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Relational Databases Query Optimization using Hybrid Evolutionary Algorithm

Optimizing the database queries is one of hard research problems. Exhaustive search techniques like dynamic programming is suitable for queries with a few relations, but by increasing the number of relations in query, much use of memory and processing is needed, and the use of these methods is not suitable, so we have to use random and evolutionary methods. The use of evolutionary methods, beca...

متن کامل

Query Processing in Paraconsistent Databases in the Presence of Integrity Constraints

In this paper, we present an approach to query processing for paraconsistent databases in the presence of integrity constraints. Paraconsistent databases are capable of representing positive as well as negative facts and typically operate under the open world assumption. It is easily observed that integrity constraints are usually statements about negative facts and as a result paraconsistent d...

متن کامل

Data Model of FRDB with Different Data Types and PFSQL

One of the disadvantages of the relational model is its disability to model uncertain and incomplete data. The idea to use fuzzy sets and fuzzy logic to extend existing database models to include these possibilities has been utilized since the 1980s. Although this area has been researched for a long time, concrete implementations are rare. Literature contains references to several models of fuz...

متن کامل

Representing Data as Resources in RDF and OWL

This paper presents an RDF vocabulary for representing data values as resources. An intended application is the representation of relational databases in RDF, and reasoning with them using semantically rich dialects of RDF, such as OWL. After discussing the rationale for this work, we present the structure of the vocabulary, some implementation considerations and possible extensions, which open...

متن کامل

Logical Foundations for Similarity-Based Databases

Extensions of relational databases which aim at utilizing various aspects of similarity and imprecision in data processing are widespread in the literature. A need for development of solid foundations for such extensions, sometimes called similarity-based relational databases, has repeatedly been emphasized by leading database experts. This paper argues that, contrary to what may be perceived f...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2011