Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Tobias Bleifuß"'
Publikováno v:
Proceedings of the 31st ACM International Conference on Information & Knowledge Management.
Publikováno v:
Datenbank-Spektrum. 21:5-9
ZusammenfassungIm Januar und Februar 2020 boten wir auf der openHPI Plattform einen Massive Open Online Course (MOOC) mit dem Ziel an, Nicht-Fachleute in die Begriffe, Ideen, und Herausforderungen von Data Science einzuführen. In über hundert klein
Publikováno v:
ICDE
A considerable amount of useful information on the web is (semi-)structured, such as tables and lists. An extensive corpus of prior work addresses the problem of making these human-readable representations interpretable by algorithms. Most of these w
Publikováno v:
WWW
Wikipedia is the largest encyclopedia to date. Scattered among its articles, there is an enormous number of tables that contain structured, relational information. In contrast to database tables, these webtables lack metadata, making it difficult to
Autor:
Felix Naumann, Leon Bornemann, Divesh Srivastava, Dmitri V. Kalashnikov, Tobias Bleifuß, Theodore Johnson
Publikováno v:
Proceedings of the VLDB Endowment. 12:85-98
Data and metadata in datasets experience many different kinds of change. Values are inserted, deleted or updated; rows appear and disappear; columns are added or repurposed, etc. In such a dynamic situation, users might have many questions related to
Publikováno v:
Datenbank-Spektrum. 18:79-87
Analysis of static data is one of the best studied research areas. However, data changes over time. These changes may reveal patterns or groups of similar values, properties, and entities. We study changes in large, publicly available data repositori
Publikováno v:
Proceedings of the VLDB Endowment. 11:311-323
Denial constraints (DCs) are a generalization of many other integrity constraints (ICs) widely used in databases, such as key constraints, functional dependencies, or order dependencies. Therefore, they can serve as a unified reasoning framework for
Autor:
Tobias Bleifuß, Tim Friedrich, Axel Stebner, Lan Jiang, Felix Naumann, Hazar Harmouch, Thorsten Papenbrock, Maxi Fischer, Nils Strelow, Fabian Windheuser, Falco Dürsch
Publikováno v:
CIKM
Inclusion dependencies are an important type of metadata in relational databases, because they indicate foreign key relationships and serve a variety of data management tasks, such as data linkage, query optimization, and data integration. The discov
Autor:
Felix Naumann, Vladislav Shkapenyuk, Dmitri V. Kalashnikov, Tobias Bleifuß, Theodore Johnson, Divesh Srivastava
Publikováno v:
ExploreDB@SIGMOD/PODS
Data and metadata suffer many different kinds of change: values are inserted, deleted or updated; entities appear and disappear; properties are added or re-purposed, etc. Explicitly recognizing, exploring, and evaluating such change can alert to chan
Autor:
Sebastian Kruse, Thorsten Papenbrock, Julian Risch, Felix Naumann, Georg Wiese, Johannes Frohnhofen, Susanne Bülow, Tobias Bleifuß
Publikováno v:
CIKM
Functional dependencies (FDs) are an important prerequisite for various data management tasks, such as schema normalization, query optimization, and data cleansing. However, automatic FD discovery entails an exponentially growing search and solution