Hi! I'm Phi. I am a PhD candidate in Computer Science in Nanyang Technological University, Singapore (NTU). I work in Neural Natural Language Processing under Prof. Shafiq Joty. I focus in various aspects of Neural Machine Translation methods, especially unsupervised and semi-supervised machine translation.

In summer 2021 and 2022, I conducted two Research Internship programs at Facebook AI Research (FAIR) under the supervision of Dr. Hongyu Gong. My work there involves Text and Speech based Neural Machine Tranlation.

Find my CV here.


My research involves various topics of Deep Learning in Neural Machine Translation (NLP). I try to innovate and invent novel models and architectures, such as the Transformer, to improve the performance of data-driven machine translation systems. I also explore numerous techniques to enhance unsupervised and semi-supervised machine translation systems, such as using diversification methods. My work can meaningfully contribute to the development of commercial translation systems like Google Translate.
Plus, I also work on other research projects regarding semantic parsing, summarization, speech translation etc.

Research Interest

  • Multi-lingual NLP (Machine Translation, Cross-lingual tasks)
  • Machine Learning
  • Deep Learning

Working Experience

May 2022 – Sep 2022
United States

Research Intern

Facebook AI Research (FAIR)

Researched on improving Speech-to-Speech translation by introducing new ways to generate and augment synthetic data. Our paper is being submitted to ICASSP 2023.
May 2021 – Sep 2021
United States (Remote)

Research Intern

Facebook AI Research (FAIR)

Researched and developed a novel pseudo-parallel data mining technique and integration strategy to achieve the state of the art in Unsupervised Machine Translation. Our paper is published in ICLR 2022.
May 2019 – Aug 2019

NLP Research Intern

Salesforce AI Research Asia

Research on different aspects of linguistic structures languages on the performances of neural architectures on various natural language processing tasks. Propose new state-of-the-art methods and write papers submitted to machine learning and NLP conferences.
Mar 2018 – May 2019

Research Assistant

Natural Language Processing Group, NTU

Research on different limitations and improvements on Neural Machine Translation, such as document-level machine translation, discourse phenomena, phrase-based, parsing-tree-based and unsupervised neural machine translation. Write papers submitted to various machine learning and NLP conferences, e.g: ICLR, ACL, EMNLP.
May 2017 – Jul 2017 & Jan 2018 – Jul 2018

Software Engineer Intern

Visa Inc.

Developed a novel lightweight character-level convolutional neural network to perform scripted text classification tasks at up to 98 accuracy while consuming 1000 times less resources and achieving 10 times faster training time than standard deep models. Developed production-level code to deploy the models.
May 2016 – Jul 2016

Software Engineer Intern

Panasonic R&D Center Singapore

Researched and cooperated to develop a new machine learning algorithm based on Support Vector Machine to classify electrical signals, achieving 94% of experimental accuracy. Assisted to design a Raspberry Pi robot for collecting sensor signals and communicating with server to manipulate a real car's system. Real-time accuracy reached 83.8%.



Doctor of Philosophy in Computer Science & Artificial Intelligence

Nanyang Technological University

Research on neural approaches for supervised/unsupervised/semi-supervised machine translation systems.

Bachelor in Electrical & Electronics Engineering

Nanyang Technological University

Worked in various machine learning projects, ranging from classical ML like SVM to deep learning methods for computer vision and natural language processing.