Search Results for author: Mohammad Ali Javidian

Found 16 papers, 7 papers with code

Unicorn: Reasoning about Configurable System Performance through the lens of Causality

1 code implementation20 Jan 2022 Md Shahriar Iqbal, Rahul Krishna, Mohammad Ali Javidian, Baishakhi Ray, Pooyan Jamshidi

Understanding and reasoning about the performance behavior of highly configurable systems, over a vast and variable space, is challenging.

BIG-bench Machine Learning Causal Inference +1

Learning Circular Hidden Quantum Markov Models: A Tensor Network Approach

no code implementations29 Oct 2021 Mohammad Ali Javidian, Vaneet Aggarwal, Zubin Jacob

In this paper, we propose circular Hidden Quantum Markov Models (c-HQMMs), which can be applied for modeling temporal data in quantum datasets (with classical datasets as a special case).

Quantum causal inference in the presence of hidden common causes: An entropic approach

no code implementations24 Apr 2021 Mohammad Ali Javidian, Vaneet Aggarwal, Zubin Jacob

We also demonstrate that the proposed approach outperforms the results of classical causal inference for the Tubingen database when the variables are classical by exploiting quantum dependence between variables through density matrices rather than joint probability distributions.

Causal Inference

Scalable Causal Domain Adaptation

1 code implementation27 Feb 2021 Mohammad Ali Javidian, Om Pandey, Pooyan Jamshidi

To overcome this difficulty, we propose SCTL, an algorithm that avoids an exhaustive search and identifies invariant causal features across source and target domains based on Markov blanket discovery.

Causal Discovery Causal Inference +2

Accelerating Recursive Partition-Based Causal Structure Learning

no code implementations23 Feb 2021 Md. Musfiqur Rahman, Ayman Rasheed, Md. Mosaddek Khan, Mohammad Ali Javidian, Pooyan Jamshidi, Md. Mamun-or-Rashid

This paper proposes a generic causal structure refinement strategy that can locate the undesired relations with a small number of CI-tests, thus speeding up the algorithm for large and complex problems.

Causal Discovery Decision Making +1

Quantum Entropic Causal Inference

no code implementations23 Feb 2021 Mohammad Ali Javidian, Vaneet Aggarwal, Fanglin Bao, Zubin Jacob

This successful inference on a synthetic quantum dataset can have practical applications in identifying originators of malicious activity on future multi-node quantum networks as well as quantum error correction.

Causal Inference

Learning LWF Chain Graphs: A Markov Blanket Discovery Approach

1 code implementation29 May 2020 Mohammad Ali Javidian, Marco Valtorta, Pooyan Jamshidi

We provide a novel scalable and sound algorithm for Markov blanket discovery in LWF CGs and prove that the Grow-Shrink algorithm, the IAMB algorithm, and its variants are still correct for Markov blanket discovery in LWF CGs under the same assumptions as for Bayesian networks.

Learning LWF Chain Graphs: an Order Independent Algorithm

1 code implementation27 May 2020 Mohammad Ali Javidian, Marco Valtorta, Pooyan Jamshidi

We present a PC-like algorithm that finds the structure of chain graphs under the faithfulness assumption to resolve the problem of scalability of the proposed algorithm by Studeny (1997).

AMP Chain Graphs: Minimal Separators and Structure Learning Algorithms

1 code implementation24 Feb 2020 Mohammad Ali Javidian, Marco Valtorta, Pooyan Jamshidi

To address the problem of learning the structure of AMP CGs from data, we show that the PC-like algorithm (Pena, 2012) is order-dependent, in the sense that the output can depend on the order in which the variables are given.

Order-Independent Structure Learning of Multivariate Regression Chain Graphs

1 code implementation1 Oct 2019 Mohammad Ali Javidian, Marco Valtorta, Pooyan Jamshidi

We consider the PC-like algorithm for structure learning of MVR CGs, which is a constraint-based method proposed by Sonntag and Pe\~{n}a in [18].

regression

Transfer Learning for Performance Modeling of Configurable Systems: A Causal Analysis

1 code implementation26 Feb 2019 Mohammad Ali Javidian, Pooyan Jamshidi, Marco Valtorta

We expect that the ability to carry over causal relations will enable effective performance analysis of highly-configurable systems.

Transfer Learning

On a hypergraph probabilistic graphical model

no code implementations20 Nov 2018 Mohammad Ali Javidian, Linyuan Lu, Marco Valtorta, Zhiyu Wang

We propose a directed acyclic hypergraph framework for a probabilistic graphical model that we call Bayesian hypergraphs.

Comment on: Decomposition of structural learning about directed acyclic graphs [1]

no code implementations27 Jun 2018 Mohammad Ali Javidian, Marco Valtorta

We propose an alternative proof concerning necessary and sufficient conditions to split the problem of searching for d-separators and building the skeleton of a DAG into small problems for every node of a separation tree T. The proof is simpler than the original [1].

regression

A Proof of the Front-Door Adjustment Formula

no code implementations25 Jun 2018 Mohammad Ali Javidian, Marco Valtorta

We provide a proof of the the Front-Door adjustment formula using the do-calculus.

On the Properties of MVR Chain Graphs

no code implementations9 Mar 2018 Mohammad Ali Javidian, Marco Valtorta

Except for pairwise Markov properties, we show that for MVR chain graphs all Markov properties in the literature are equivalent for semi-graphoids.

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