18 citations · 33 across the 10 of their papers we have counts for
11 papers
Semi-Oblivious Chase Termination for Linear Existential Rules: An Experimental Study
Marco Calautti, Mostafa Milani, Andreas Pieris
The chase procedure is a fundamental algorithmic tool in databases that allows us to reason with constraints, such as existential rules, with a plethora of applications. It takes a…
Extending Sticky-Datalog+/- via Finite-Position Selection Functions: Tractability, Algorithms, and Optimization
Leopoldo Bertossi, Mostafa Milani
Weakly-Sticky(WS) Datalog+/- is an expressive member of the family of Datalog+/- program classes that is defined on the basis of the conditions of stickiness and weak-acyclicity. C…
Privacy-Aware Data Cleaning-as-a-Service (Extended Version)
Yu Huang, Mostafa Milani, Fei Chiang
Data cleaning is a pervasive problem for organizations as they try to reap value from their data. Recent advances in networking and cloud computing technology have fueled a new com…
Diversifying Anonymized Data with Diversity Constraints
Mostafa Milani, Yu Huang, Fei Chiang
Recently introduced privacy legislation has aimed to restrict and control the amount of personal data published by companies and shared to third parties. Much of this real data is…
Facilitating SQL Query Composition and Analysis
Zainab Zolaktaf, Mostafa Milani, Rachel Pottinger
Formulating efficient SQL queries requires several cycles of tuning and execution, particularly for inexperienced users. We examine methods that can accelerate and improve this int…
Ontological Multidimensional Data Models and Contextual Data Qality
Leopoldo Bertossi, Mostafa Milani
Data quality assessment and data cleaning are context-dependent activities. Motivated by this observation, we propose the Ontological Multidimensional Data Model (OMD model), which…
The Ontological Multidimensional Data Model
Leopoldo Bertossi, Mostafa Milani
In this extended abstract we describe, mainly by examples, the main elements of the Ontological Multidimensional Data Model, which considerably extends a relational reconstruction…
Extending Weakly-Sticky Datalog+/-: Query-Answering Tractability and Optimizations
Mostafa Milani, Leopoldo Bertossi
Weakly-sticky (WS) Datalog+/- is an expressive member of the family of Datalog+/- programs that is based on the syntactic notions of stickiness and weak-acyclicity. Query answering…
A Hybrid Approach to Query Answering under Expressive Datalog+/-
Mostafa Milani, Andrea Cali, Leopoldo Bertossi
Datalog+/- is a family of ontology languages that combine good computational properties with high expressive power. Datalog+/- languages are provably able to capture the most relev…
Tractable Query Answering and Optimization for Extensions of Weakly-Sticky Datalog+-
Mostafa Milani, Leopoldo Bertossi
We consider a semantic class, weakly-chase-sticky (WChS), and a syntactic subclass, jointly-weakly-sticky (JWS), of Datalog+- programs. Both extend that of weakly-sticky (WS) progr…
Extending Contexts with Ontologies for Multidimensional Data Quality Assessment
Mostafa Milani, Leopoldo Bertossi, Sina Ariyan
Data quality and data cleaning are context dependent activities. Starting from this observation, in previous work a context model for the assessment of the quality of a database in…