Works (10)

Updated: July 5th, 2023 15:33

2021 article

InferNet for Delayed Reinforcement Tasks: Addressing the Temporal Credit Assignment Problem

2021 IEEE INTERNATIONAL CONFERENCE ON BIG DATA (BIG DATA), pp. 1337–1348.

By: M. Ausin n, H. Azizsoltani n, S. Ju n, Y. Kim n & M. Chi n

author keywords: Credit Assignment Problem; Deep Reinforcement Learning
TL;DR: The results show that InferNet is robust to delayed or noisy reward functions, and it could be used effectively for solving the temporal CAP in a wide range of RL tasks, when immediate rewards are not available or they are noisy. (via Semantic Scholar)
Source: Web Of Science
Added: July 5, 2022

2021 article

Leveraging Granularity: Hierarchical Reinforcement Learning for Pedagogical Policy Induction

Zhou, G., Azizsoltani, H., Ausin, M. S., Barnes, T., & Chi, M. (2021, August 16). INTERNATIONAL JOURNAL OF ARTIFICIAL INTELLIGENCE IN EDUCATION, Vol. 8.

By: G. Zhou n, H. Azizsoltani n, M. Ausin n, T. Barnes n & M. Chi n

author keywords: Hierarchical reinforcement learning; Decision granularity; Pedagogical policy
TL;DR: An offline, off-policy Gaussian Processes based Hierarchical Reinforcement Learning (HRL) framework is proposed and applied to induce a hierarchical pedagogical policy that makes adaptive, effective decisions at both the problem and step levels. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 23, 2021

2020 journal article

Novel Geomechanics Concepts for Earthquake Excitations Applied in Time Domain

INTERNATIONAL JOURNAL OF GEOMECHANICS, 20(9).

By: A. Haldar*, J. Gaxiola-Camacho*, H. Azizsoltani n, F. Villegas-Mercado* & S. Vazirizade*

author keywords: Earthquake engineering; Dynamics of geomaterials; Site conditions; Multiple deterministic analyses; Design earthquake time history; Performance-based seismic design
TL;DR: Novel geomechanics concepts for seismic design satisfying the current performance-based seismic design (PBSD) requirements are presented and issues related to soil conditions are explicitly a concern. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 24, 2020

2020 journal article

Reliability estimation of jacket type offshore platforms against seismic and wave loadings applied in time domain

SHIPS AND OFFSHORE STRUCTURES, 17(1), 143–152.

By: S. Vazirizade*, H. Azizsoltani n & A. Haldar*

author keywords: Offshore platforms; reliability estimation; seismic excitation; wave loading; advanced factorial schemes; Kriging
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: November 16, 2020

2019 article

Discussion of "State-of-the-Art Review on Seismic Design of Steel Structures" by Chia-Ming Uang and Michel Bruneau

Azizsoltani, H., Ramon Gaxiola-Camacho, J., Villegas-Mercado, F. J., & Haldar, A. (2019, May 1). JOURNAL OF STRUCTURAL ENGINEERING, Vol. 145.

By: H. Azizsoltani n, J. Ramon Gaxiola-Camacho*, F. Villegas-Mercado* & A. Haldar*

Source: Web Of Science
Added: April 20, 2020

2019 article

Hierarchical Reinforcement Learning for Pedagogical Policy Induction

ARTIFICIAL INTELLIGENCE IN EDUCATION (AIED 2019), PT I, Vol. 11625, pp. 544–556.

By: G. Zhou n, H. Azizsoltani n, M. Ausin n, T. Barnes n & M. Chi n

author keywords: Hierarchical Reinforcement Learning; Pedagogical policies
TL;DR: This paper proposes and applies an offline, off-policy Gaussian Processes based Hierarchical Reinforcement Learning (HRL) framework to induce a hierarchical pedagogical policy that makes decisions at both problem and step levels and shows that the HRL policy is significantly more effective than a Deep Q-Network induced policy and a random yet reasonable baseline policy. (via Semantic Scholar)
UN Sustainable Development Goal Categories
16. Peace, Justice and Strong Institutions (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: December 2, 2019

2018 journal article

Adaptive sequential strategy for risk estimation of engineering systems using Gaussian process regression active learning

ENGINEERING APPLICATIONS OF ARTIFICIAL INTELLIGENCE, 74, 146–165.

By: H. Azizsoltani n & E. Sadeghi*

author keywords: Sequential strategy; Gaussian process regression; Active learning; Risk estimation; Monte Carlo method
TL;DR: An adaptive sequential strategy based on the Monte Carlo method and Gaussian process regression active learning for risk estimation of engineering systems with minimum computational cost and acceptable accuracy is presented and is compared with the other available methodologies. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: October 19, 2018

2018 journal article

Reliability Analysis of Lead-Free Solders in Electronic Packaging Using a Novel Surrogate Model and Kriging Concept

JOURNAL OF ELECTRONIC PACKAGING, 140(4).

By: H. Azizsoltani n & A. Haldar*

author keywords: reliability evaluation; implicit limit state function; response surface method; advanced factorial design; Kriging method; Monte Carlo simulation; lead-free solder
TL;DR: The study showcased how reliability information can be extracted with the help of multiple deterministic analyses and proposed an alternative to the classical MCS technique. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: November 12, 2018

2018 journal article

Site-specific seismic design of damage tolerant structural systems using a novel concept

BULLETIN OF EARTHQUAKE ENGINEERING, 16(9), 3819–3843.

author keywords: Ground motion selection; Uniform hazard response spectrum; Response surface method; First order reliability method; Monte Carlo simulation
TL;DR: The authors believe that they proposed an alternative to the classical random vibration and simulation approaches to generate a suite of ground excitation time histories and a novel risk estimation is developed considering major sources of nonlinearity and uncertainty. (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (OpenAlex)
Source: Web Of Science
Added: October 19, 2018

2018 review

State-of-the-Art Review on Seismic Design of Steel Structures

[Review of ]. JOURNAL OF STRUCTURAL ENGINEERING, 144(4).

author keywords: Seismic effects; Steel structures; Seismic design; Ductility design; Capacity design; Building codes
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities (OpenAlex)
Source: Web Of Science
Added: July 15, 2019

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