A Primer on Database Provenance
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چکیده
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منابع مشابه
مروری بر مطالعات اُبسیدین در ایران، منشأیابی معادن و اُبسیدین های محوطه های باستانی، پژوهش ها و پرسش های موجود
Obsidian artifacts is frequently used materials in prehistory and found widely in archaeological sites. Provenance studies of obsidian has been an issue of intense research and debate between archaeologists and geologists. Since different provenance studies has been carried out from 1960s up to 2015 in Anatolia and Caucasus but obsidian studies in Iran is in very early stage and consider as ter...
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Assessing the quality or validity of a piece of data is not usually done in isolation. You typically examine the context in which the data appears and try to determine its original sources or review the process through which it was created. This is not so straightforward when dealing with digital data, however: the result of a computation might have been derived from numerous sources and by app...
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Provenance of scientific data is a key piece of the metadata record for the data's ongoing discovery and reuse. Provenance collection systems capture provenance on the fly, however, the protocol between application and provenance tool may not be reliable. Consequently, the provenance record can be partial, partitioned, and simply inaccurate. We used a workflow emulator that models faults to con...
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We review the basics of data provenance in relational databases. We describe different provenance formalisms, from Boolean provenance to provenance semirings and beyond, that can be used for a wide variety of purposes, to obtain additional information on the output of a query. We discuss representation systems for data provenance, circuits in particular, with a focus on practical implementation...
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Writing relational database queries over current provenance databases can be complex and error-prone because application data is typically mixed with provenance data, because queries may require recursion, and because the form in which provenance is maintained requires procedural parsing not easily framed in query syntax. As a result, it is often difficult to write queries that select (rows or ...
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