منابع مشابه
Chapter 7 UNCERTAINTY IN DATA INTEGRATION
Data integration has been an important area of research for several years. In this chapter, we argue that supporting modern data integration applications requires systems to handle uncertainty at every step of integration. We provide a formal framework for data integration systems with uncertainty. We define probabilistic schema mappings and probabilistic mediated schemas, show how they can be ...
متن کاملChapter 1 UNCERTAINTY IN DATA INTEGRATION
Data integration has been an important area of research for several years. In this chapter, we argue that supporting modern data integration applications requires systems to handle uncertainty at every step of integration. We provide a formal framework for data integration systems with uncertainty. We define probabilistic schema mappings and probabilistic mediated schemas, show how they can be ...
متن کاملUncertainty in Data Integration and Dataspace Support Platforms
Data integration has been an important area of research for several years. However, such systems suffer from one of the main drawbacks of database systems: the need to invest significant modeling effort upfront. Dataspace Support Platforms (DSSP) envision a system that offers useful services on its data without any setup effort, and improve with time in a pay-as-you-go fashion. We argue that in...
متن کاملIntegration of Data Uncertainty in Linear Regression and Process Optimization
Data uncertainties provide important information that should be taken into account along with the actual data. In fact, with the development of measurement instrumentation methods and metrology, one is very often able to rigorously specify the uncertainty associated with each measured value. The use of this piece of information, together with raw measurements, should—in principle—lead to more s...
متن کاملUncertainty in Environmental Data Integration into 3d Urban Information System
This paper introduces a 3D environmental urban information system which is to help urban designers and developers to analysing and evaluating the environmental impacts of their urban projects. Where urban data is acquired from 3D urban models and environmental data is often coming from simulation software. For realizing environmental impacts analysis, the environmental urban information must be...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The VLDB Journal
سال: 2008
ISSN: 1066-8888,0949-877X
DOI: 10.1007/s00778-008-0119-9