Search Results for author: Dhananjay Thiruvady

Found 8 papers, 0 papers with code

Genetic-based Constraint Programming for Resource Constrained Job Scheduling

no code implementations1 Feb 2024 Su Nguyen, Dhananjay Thiruvady, Yuan Sun, Mengjie Zhang

In the proposed algorithm, evolved programs represent variable selectors to be used in the search process of constraint programming, and their fitness is determined by the quality of solutions obtained for training instances.

Scheduling

A Framework for Empowering Reinforcement Learning Agents with Causal Analysis: Enhancing Automated Cryptocurrency Trading

no code implementations14 Oct 2023 Rasoul Amirzadeh, Dhananjay Thiruvady, Asef Nazari, Mong Shan Ee

Designed as the foundational architecture of the trading system, the CausalReinforceNet framework enhances the capabilities of the reinforcement learning agent through causal analysis.

Decision Making Feature Engineering +1

Causal Feature Engineering of Price Directions of Cryptocurrencies using Dynamic Bayesian Networks

no code implementations13 Jun 2023 Rasoul Amirzadeh, Asef Nazari, Dhananjay Thiruvady, Mong Shan Ee

The efficacy of the proposed model in predicting cryptocurrency price directions is evaluated from two perspectives.

Feature Engineering

Modelling Determinants of Cryptocurrency Prices: A Bayesian Network Approach

no code implementations26 Mar 2023 Rasoul Amirzadeh, Asef Nazari, Dhananjay Thiruvady, Mong Shan Ee

The ensuing networks are used for causal reasoning and diagnosis, and the results indicate that social media (in particular Twitter data in this study) is the most significant influencing factor of the prices of altcoins.

Enhancing Constraint Programming via Supervised Learning for Job Shop Scheduling

no code implementations26 Nov 2022 Yuan Sun, Su Nguyen, Dhananjay Thiruvady, XiaoDong Li, Andreas T. Ernst, Uwe Aickelin

Finally, we demonstrate that hybridising the machine learning-based variable ordering methods with traditional domain-based methods is beneficial.

Job Shop Scheduling Scheduling

Adaptive Population-based Simulated Annealing for Uncertain Resource Constrained Job Scheduling

no code implementations31 Oct 2022 Dhananjay Thiruvady, Su Nguyen, Yuan Sun, Fatemeh Shiri, Nayyar Zaidi, XiaoDong Li

While a number of optimisation methods have been proposed to tackle the deterministic problem, the uncertainty associated with resource availability, an inevitable challenge in mining operations, has received less attention.

Scheduling

A hybrid deep-learning approach for complex biochemical named entity recognition

no code implementations20 Dec 2020 Jian Liu, Lei Gao, Sujie Guo, Rui Ding, Xin Huang, Long Ye, Qinghua Meng, Asef Nazari, Dhananjay Thiruvady

In this approach, the MHATT mechanism aims to improve the recognition accuracy of abbreviations to efficiently deal with the problem of inconsistency in full-text labels.

Attribute Attribute Extraction +4

Instance Space Analysis for the Car Sequencing Problem

no code implementations18 Dec 2020 Yuan Sun, Samuel Esler, Dhananjay Thiruvady, Andreas T. Ernst, XiaoDong Li, Kerri Morgan

We investigate an important research question for solving the car sequencing problem, that is, which characteristics make an instance hard to solve?

Dimensionality Reduction

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