Hamoon Azizsoltani

Works (10)

Updated: July 5th, 2023 15:33

2021 article

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

Ausin, M. S., Azizsoltani, H., Ju, S., Kim, Y. J., & Chi, M. (2021, December 15). 2021 IEEE International Conference on Big Data (Big Data).

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

author keywords: Credit Assignment Problem; Deep Reinforcement Learning
topics (OpenAlex): Reinforcement Learning in Robotics; Explainable Artificial Intelligence (XAI); Evolutionary Algorithms and Applications
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
topics (OpenAlex): Intelligent Tutoring Systems and Adaptive Learning; Online Learning and Analytics; Reinforcement Learning in Robotics
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 article

Novel Geomechanics Concepts for Earthquake Excitations Applied in Time Domain

Haldar, A., Gaxiola-Camacho, J. R., Azizsoltani, H., Villegas-Mercado, F. J., & Vazirizade, S. M. (2020, July 8). International Journal of Geomechanics.

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
topics (OpenAlex): Seismic Performance and Analysis; Probabilistic and Robust Engineering Design; Structural Response to Dynamic Loads
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)
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Source: Web Of Science
Added: August 24, 2020

2020 article

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

Vazirizade, S. M., Azizsoltani, H., & Haldar, A. (2020, October 23). Ships and Offshore Structures.

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

author keywords: Offshore platforms; reliability estimation; seismic excitation; wave loading; advanced factorial schemes; Kriging
topics (OpenAlex): Probabilistic and Robust Engineering Design; Concrete Corrosion and Durability; Structural Integrity and Reliability Analysis
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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., Gaxiola-Camacho, J. R., Villegas-Mercado, F. J., & Haldar, A. (2019, February 22). Journal of Structural Engineering.

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

topics (OpenAlex): Seismic Performance and Analysis; Structural Engineering and Vibration Analysis; Structural Load-Bearing Analysis
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Source: Web Of Science
Added: April 20, 2020

2019 article

Hierarchical Reinforcement Learning for Pedagogical Policy Induction

Zhou, G., Azizsoltani, H., Ausin, M. S., Barnes, T., & Chi, M. (2019, January 1). Lecture Notes in Computer Science, 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
topics (OpenAlex): Intelligent Tutoring Systems and Adaptive Learning; Online Learning and Analytics; Data Stream Mining Techniques
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)
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16. Peace, Justice and Strong Institutions (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: December 2, 2019

2018 article

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

Azizsoltani, H., & Sadeghi, E. (2018, July 6). Engineering Applications of Artificial Intelligence.

By: H. Azizsoltani n & E. Sadeghi *

author keywords: Sequential strategy; Gaussian process regression; Active learning; Risk estimation; Monte Carlo method
topics (OpenAlex): Probabilistic and Robust Engineering Design; Advanced Multi-Objective Optimization Algorithms; Optimal Experimental Design Methods
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)
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Source: Web Of Science
Added: October 19, 2018

2018 article

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

Azizsoltani, H., & Haldar, A. (2018, July 20). Journal of Electronic Packaging.

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
topics (OpenAlex): Probabilistic and Robust Engineering Design; Electronic Packaging and Soldering Technologies; Fatigue and fracture mechanics
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)
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Source: Web Of Science
Added: November 12, 2018

2018 article

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

Azizsoltani, H., Gaxiola-Camacho, J. R., & Haldar, A. (2018, February 21). Bulletin of Earthquake Engineering.

By: H. Azizsoltani n, J. Gaxiola-Camacho * & A. Haldar *

author keywords: Ground motion selection; Uniform hazard response spectrum; Response surface method; First order reliability method; Monte Carlo simulation
topics (OpenAlex): Seismic Performance and Analysis; Probabilistic and Robust Engineering Design; Structural Response to Dynamic Loads
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)
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13. Climate Action (OpenAlex)
Source: Web Of Science
Added: October 19, 2018

2018 article

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

Uang, C.-M., & Bruneau, M. (2018, April 1). Journal of Structural Engineering.

By: C. Uang * & M. Bruneau *

author keywords: Seismic effects; Steel structures; Seismic design; Ductility design; Capacity design; Building codes
topics (OpenAlex): Seismic Performance and Analysis; Structural Load-Bearing Analysis; Seismic and Structural Analysis of Tall Buildings
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11. Sustainable Cities and Communities (OpenAlex)
Source: Web Of Science
Added: July 15, 2019

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