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Ousmane Issa

dblp:272/3629 · DBLP profile ↗
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2ranked-venue papers
2as first author
1since 2021 · last 2021
—ORCID · none

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

Databases, data management, data science and information retrieval · 2 · 2 first-author · 1 since 2021

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
2 papers
Data integration and cleaning · 57% Database theory · 23% Query processing and optimization · 20%

Topics — the 5 heaviest of 6, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Data integration and cleaning
data profiling
0.512021
INCA: Inconsistency-Aware Data Profiling and Querying · SIGMOD Conference 2021
Database theory
query answering
0.512021
INCA: Inconsistency-Aware Data Profiling and Querying · SIGMOD Conference 2021
Query processing and optimization
top-k query processing
0.412020
Evaluating Top-k Queries with Inconsistency Degrees · Proc. VLDB Endow. 2020
Data integration and cleaning › data preprocessing › data cleaning
constraint-based data cleaning
0.112021
INCA: Inconsistency-Aware Data Profiling and Querying · SIGMOD Conference 2021
Data integration and cleaning › data preprocessing
data cleaning
0.112021
INCA: Inconsistency-Aware Data Profiling and Querying · SIGMOD Conference 2021

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

why-provenance · 0.5polynomial provenance · 0.5denial constraints · 0.5
YearPublicationVenuePosition
2021 INCA: Inconsistency-Aware Data Profiling and Querying
abstract
When exploring and querying inconsistent data, inconsistency measures referring to constraint violations can help the user to quantify the quality of the underlying data and query results. We showcase INCA, a system that allows the user to execute data profiling and query answering tasks in an inconsistency-aware fashion. By using data instances annotated with novel inconsistency measures based on why-provenance and polynomial provenance, it becomes possible to visualize the share of the data which is consistent or inconsistent with respect to one or multiple denial constraints. Furthermore, data exploration by constraint or by subset of constraints allows to inspect the tuple violations according to multifaceted criteria. Finally, query profiling allows to enable inconsistency-aware query results accounting for most (in-)consistent top-k and threshold query results. To the best of our knowledge, INCA is the first system to allow such an inconsistency-driven analysis of both data and query results. Such an analysis is especially fruitful for enabling selective constraint-based data cleaning and inconsistency-aware ranking of query results in data science pipelines, thus leading to more explainable outputs of those processes.
Ousmane Issa, Angela Bonifati, Farouk Toumani
SIGMOD Conference1
2020 Evaluating Top-k Queries with Inconsistency Degrees
Ousmane Issa, Angela Bonifati, Farouk Toumani
Proc. VLDB Endow.1