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Maria Cristina De Bernardis

dblp:83/1912 · DBLP profile ↗
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2ranked-venue papers
0as first author
0since 2021 · last 1990
—ORCID · none

Domains — the database's venue-derived domains; a paper can count in several

Databases, data management, data science and information retrieval · 1Theory of computation · 1

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Databases, data mining, and information retrieval
1 paper
Database theory · 100%

Topics — the 2 heaviest of 2, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Database theory › incomplete information
weak instance model
0.011987
A New Basis for the Weak Instance Model · PODS 1987
Database theory › data dependencies
dependency satisfaction
0.011987
A New Basis for the Weak Instance Model · PODS 1987

Methods — techniques the papers use, named apart from their topics

query answering · 0.0logical theories · 0.0
YearPublicationVenuePosition
1990 A New Interpretation for Null Values in the Weak Instance Model
Paolo Atzeni, Maria Cristina De Bernardis
J. Comput. Syst. Sci.2
1987 A New Basis for the Weak Instance Model
abstract
A new definition of the weak instance model is presented, which does not consider the missing values as existent though unknown, but just assumes that no information is available about them. It is possible to associate with the new definition logical theories that do not contain universally quantified variables. The new model enjoys various desirable properties of the old weak instance model, with respect to dependency satisfaction, query answering, and associated logical theories.
Paolo Atzeni, Maria Cristina De Bernardis
PODS2