peinan

Peinan Zhang

Senior Research Scientist @ AI Lab of CyberAgent, Inc.

Summary

Background: During my undergraduate studies, I specialized in Natural Language Processing (NLP). After starting my career as a machine learning engineer, I now work as a researcher, engineer, and manager. My current focus is on (1) applying NLP and machine learning technologies to the advertising domain, and (2) maximizing the performance of my team. Work: As an active contributor, I integrate methods from national and international research papers that align with our business strategies, implement prototypes, and validate their effectiveness. I also work to publish and present new ideas and methods that emerge from this process at conferences, bridging the gap between industry and academia. Recently, my responsibilities have expanded to include management tasks, where I focus on maximizing team performance. Achievements: I led a research project aimed at automatically generating effective advertising texts, which culminated in the launch of a product centered around this capability, called KiwamiTD. I also transformed product challenges into research topics, resulting in papers submitted to and accepted at prestigious international conferences such as ACL, NAACL, and EMNLP, which are among the top tier conferences in the NLP field. For more detailed information, please check below or feel free to contact me.

Experience

CyberAgent, Inc.

Senior Research Scientist
2018/06Present

I'm a Research Scientist at CyberAgent AI Lab, working on ad generation and predicting ad performance. I utilize a wide range of NLP/ML technologies, particularly natural language generation, including machine translation and summarization, as well as few-/zero-shot learning, pre-trained language models, and reinforcement learning.

Yahoo! Japan, Inc.

Machine Learning Engineer
2016/042018/04

I joined Yahoo! Japan as an machine learning engineer after graduating. On the push notification team, I implemented a personalization feature using NLP/ML and Hadoop technology for over ten million users and deployed it as an in-house application.

HRI Japan

Internship
2014/082014/09

I interned at Honda Research Institute (HRI) Japan for two months, working on the following two projects: (1) classification of speech acts and (2) developing a language model for speech recognition using the Nested Pitman-Yor Language Model (NPYLM).

Education

Tokyo Metropolitan Univ.

Master of Engineering
2014/042016/03

I worked on sentiment analysis for my Master's research. Our paper, "Japanese Sentiment Classification with Stacked Denoising Auto-Encoder using Distributed Word Representation," was accepted at PACLIC 2015 and demonstrated state-of-the-art performance on Japanese datasets at the time.

Tokyo Metropolitan Univ.

Bachelor of Engineering
2010/042014/03

In my junior year of university, I met Professor Komachi, who would greatly influence my later life. I was assigned to Komachi Lab as a first-generation student and was fascinated by NLP and other AI technologies. During my time in the lab, I became interested in making computers more human-like.

Kaijo High School

High School Diploma
2007/042010/03

I moved from Hiroshima Prefecture to Tokyo after graduating from junior high school and enrolled in Kaijo High School, one of the top private schools in Tokyo.

Selected Publications

Not Eliminate but Aggregate: Post-Hoc Control over Mixture-of-Experts to Address Shortcut Shifts in Natural Language Understanding

Ukyo Honda, Tatsushi Oka, Peinan Zhang, Masato Mita
In Transactions of the Association for Computational Linguistics (TACL), 2024
Journal PaperRefereed

Striking Gold in Advertising: Standardization and Exploration of Ad Text Generation

Masato Mita, Soichiro Murakami, Akihiko Kato, Peinan Zhang
In Proceedings of the Association for Computational Linguistics (ACL), 2024
Conference PaperRefereed

Generating Diverse and High-Quality Texts by Minimum Bayes Risk Decoding

Yuu Jinnai, Ukyo Honda, Tetsuro Morimura, Peinan Zhang
In Proceedings of the Findings of the Association for Computational Linguistics (ACL), 2024
Conference PaperRefereed

Selected Articles & Talks

戦いは数だよ兄貴!Google Cloud Batch による並列化入門 〜LLMの前処理を例に〜

An article I wrote introduces the basics of parallelization with Google Cloud Batch highlighting practical applications and benefits for handling big data
Zenn.dev, 2024/12/09

AI Lab、自然言語処理分野のトップカンファレンス「ACL 2024」にて3本の論文採択

A press release announcing that our paper has been accepted to ACL 2024.
CyberAgent Press Releases, 2024/07/24

Hobbies

Design

Design is everywhere, and it continues to influence people. I am very fond of all kinds of things that can be called "design", such as typography, logo design, photography, literary expression, room coordination, and so on. I designed this portfolio and blog from scratch. It was a lot of work because I don't usually use front-end technology, but it was also very enjoyable.

Photography

I believe there is something special about photographs and videos. Thanks to recent technological advances, high-performance photographic equipment is now relatively easy for individuals to obtain. I also have a DSLR camera, and I enjoy wandering off to unfamiliar places and taking pictures while strolling around. Most of my photos are landscapes, but I also enjoy taking portraits.

Football

I was a member of a football club during my childhood, and I enjoy playing football, watching matches, and playing football video games. I sometimes join futsal games on my days off. My favorite football team is Inter Milan, and my favorite player is Ronaldinho.

Game

I'm an avid gamer. I've played numerous types of games, including action, FPS/TPS, shooting, simulation, sports, strategy, puzzle, and racing. Recently, I've been hooked on action games like Bloodborne, Sekiro, and Dark Souls by From Software. There are many other games I enjoy and would love to discuss, but this margin is too narrow to contain.