Kiarash Aghakasiri

PhD research

University of Alberta, with Levi Lelis

University of Alberta · 2024 – 2026

Didec: options from decomposed neural policies

Helped implement Didec, which discovers reusable options (temporally extended skills) by masking parts of a trained neural policy.

Hierarchical RLOption discovery

University of Alberta · 2024 – 2026

Programmatic vs. neural policies out of distribution

A careful re-evaluation of the claim that programmatic policies generalize better than neural ones on out-of-distribution tasks.

Programmatic RLGeneralization

Industry research

Huawei, Edmonton, 2021 – 2024

Huawei · 2022 – 2024

Multi-modal image quality assessment

Designed a quality metric that builds on multi-modal foundation models (CLIP-IQA, Q-Align) and outperforms state-of-the-art baselines.

Computer visionFoundation models

Huawei · 2022 – 2024

Perceptual colour-correction metric

A human-aligned colour metric that fixes inconsistencies in ΔE. Using it in the on-device colour-correction pipeline improved performance by more than 20%.

ImagingOptimization

Huawei · 2022 – 2024

ISP pipeline optimization

Tuned image-signal-processing pipelines for edge devices with genetic algorithms, sample-efficient Bayesian optimization and reinforcement learning.

Bayesian optimizationRL

Huawei · 2021 – 2024

Tensor & compiler optimization

Built a fusion-aware component for the tensor-optimization pipeline (at least 10% better) and applied Genetic MCTS to CompilerGym tasks. As an intern, modelled uncertainty in Halide optimization with heteroscedastic regression.

MCTSSystems

MSc research

University of Alberta, with Martin Müller, 2019 – 2022

University of Alberta · 2019 – 2022

UA-MCTS: planning with an imperfect model

Changed each component of MCTS so it takes errors in the transition model into account. With a good error estimate it can match MCTS with a perfect simulator.

MCTSModel-based RL

RL I, Martha White

Is heteroscedastic regression a sound way to model uncertainty?

Studied whether heteroscedastic regression gives a reliable estimate of model uncertainty.

Uncertainty

RL II, Richard Sutton

Step-size sensitivity of true online TD(λ)

How step size and performance interact for different values of λ.

TD learning

Intro to ML, Martha White

Variance reduction for off-policy evaluation

Applied variance-reduction methods to off-policy policy evaluation.

Off-policy RL

Deep Learning for NLP, Lili Mou

Named-entity recognition on out-of-vocabulary words

How sequence-tagging models handle words they have never seen.

NLP

Earlier work

BSc, Iran University of Science and Technology, 2015 – 2019

BSc thesis · 2019

Image captioning in Persian

Translated MS-COCO captions into Persian and trained an attention-based (Show, Attend and Tell) captioning model on them.

Vision & language

Data Mining Lab, IUST · 2018

Tarvajeh: Persian word associations

Collected and analysed a large word-association dataset for Persian through a survey website.

Cognitive scienceData