Welcome to My Portfolio

DC

Hello! I'm Danmeng CAI, a manager in the Global Division Department at Commerce Robotics, a dynamic start-up based in Chiba, Japan. My role involves overseeing the daily tasks of our team while also engaging in software development within the SaaS team, where I apply Large Language Models (LLMs) and other AI technologies to create innovative solutions. I hold an MA in International Area Studies, with a focus on North American regions, and an MS in Informatics, specializing in Natural Language Processing (NLP). My passion for nature conservation led me to complete a Certificate Program in Nature Conservation at the University of Tsukuba, Japan, where I explore the intersection of AI and environmental sustainability.

Projects

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A Multi-Target Feature Selection Method in Predicting Psychological Status with Text Data

Based on previous literature on Multi-Target Feature Selection (MTFS) and psychology, this research proposes a MTFS method to mitigate overfitting when predicting psychological status using text data.

*Paper accepted by iiWAS 2024

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University Students’ Temporal Trends on X and Their Effects on Subjective Well-being during the COVID-19 Pandemic: Examination from a Two-Year Study of Posts

Utilizing NLP techniques, we extracted nouns from Japanese tweets as language features. These features were then used in regression analyses to link with subjective well-being scores, followed by visualization through a new word cloud technique.

*Paper accepted by DEIM 2024

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Utilizing NLP techniques to Analyze Expert Feedback on IPBES's Regional Assessments

The IPBES is an intergovernmental body that has taken significant role in examining biodiversity trends. In this project, we leverage NLP techniques to undertake contextual semantic network examination of the expert comments from IPBES.

*Poster accepted by Tsukuba Conference 2023

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Lyrics Analysis on Songs made by John Mayer

I analyze the lyrics of songs made by John Mayer using NLP.

*Link to the full project

A Short Introduction to Applications of Natural Language Processing

To further interest for people who want to learn about NLP, examples of machine translation, speech recognition, and sentiment analysis are presented in this short video.

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Blogs

How to Write Better Prompts: A Case Study of Iterative Improvement

In the world of AI and NLP, the quality of a prompt can make or break the outcome. Crafting an effective prompt is an art that involves careful iteration and understanding the nuances of language models. It also requires continuously refining your instructions. A well-crafted prompt can mean the difference between a vague response and a highly detailed, actionable output. In this blog post, I want to share my journey of iteratively improving a prompt to achieve better summarization results for meeting notes written in Japanese. --> Read More

A Guide to Nested Cross-Validation with Code Step by Step

Nested cross-validation is a powerful technique for evaluating the generalization performance of machine learning models, particularly useful when tuning hyperparameters. It involves two layers of cross-validation: an outer loop for assessing the model’s performance and an inner loop for hyperparameter tuning. --> Read More

Making Emoji Clouds for Different Personalities

Hello, data enthusiasts and social media buffs! Ever wondered if our personality types influence the emojis we use in tweets? Let’s embark on a delightful data journey to explore this connection. We’ll be using Python, some cool libraries, and a sprinkle of emoji magic to visualize how different MBTI personality types express themselves through emojis🚀 --> Read More

Proposing a new function of a conversational search system that allows natural language communication with users: Searching for Love

The new function that I propose is called Searching for Love. The primary goal of Searching for Love is to provide users a tailored and interactive search process that goes beyond traditional dating platforms. It utilizes conversational AI to engage users in meaningful conversations, understanding their preferences, values, and compatibility factors, and ultimately facilitate successful matches. --> Read More

BERT VS. LSTM: Performances in Sentiment Classification

The objective of this post is to evaluate and compare the performance of 2 deep learning algorithms (BERT and LSTM) for conducting binary classification in sentiment analysis. The evaluation will focus on two key metrics: accuracy, which measures the overall classification performance, and training time, which assesses the efficiency of each algorithm. --> Read More

How to analyze your local dataset with Google Golab?

One the about using Colab that bothers me is that sometimes it is difficult to use when analyzing data file stored in your local environment. In this post, I will show you a convenient way to prepare your local dataset ready for analysis on Colab. There are 5 steps in total. --> Read More

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Education

MS in Informatics of the Graduate School of Comprehensive Human Sciences

University of Tsukuba, 2022-2024

Certificate Programme on Nature Conservation

University of Tsukuba, 2022-2024

MA in Area Studies of the Graduate School of Humanities and Social Sciences

University of Tsukuba, 2018-2021

Exchange Program (Coursework)

Washington University in St. Louis, 2019-2020

BA in International Relations of the School of Social and International Studies

University of Tsukuba, 2014-2018

Experiences

Company 1 Logo

Deputy Manager of Global Division Department at Commerce Robotics Inc.

Years Worked: Oct. 2024 - Current

I managed a team of six full-time employees and over ten part-time staff across sales, monitoring, and customer success departments. Additionally, I contributed to software development within the SaaS team, applying Large Language Models (LLMs) and other AI technologies to develop innovative solutions.

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LLM Intern at Free Web Hope Inc.

Years Worked: Feb. 2024 - Sep. 2024

I collaborated on the LLM-Creative project, focusing on understanding the company’s workflow and exploring improvements to the creative production process using LLMs for more efficient, reproducible outputs. Additionally, I researched how to use LLM tools for generating advertising images through Midjourney and explored video generation methods like Runway Gen-3. I also developed a customized ChatGPT model that generates catchy copywriting from URLs and utilized OpenAI’s API in Google Apps Script to automate customer and market data analysis, enhancing workflow efficiency.

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Research Intern at Complexity Science Hub

Years Worked: July 2024 - Aug. 2024

I focused on network analysis of conspiracy groups on Telegram, creating bipartite networks to explore the interactions between groups and authors. I utilized tools like NetworkX and Gephi to calculate key metrics such as degree centrality, betweenness centrality, and PageRank. I categorized groups based on the number of authors and messages, analyzed shared authors between groups, and developed methods to calculate group closeness.

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Intern at International Union for Conservation of Nature Japan Committee (IUCN-J)

Years Worked: Aug. 2024 - Sep. 2024 & Sep. 2023 - Nov. 2023

During my internship at IUCN-J, I participated in The 25th Subsidiary Body on Scientific, Technical and Technological Advice (SBSTTA 25) in Nairobi, Kenya from 15-19 Oct 2023, as well as the 8th IUCN Asia Regional Conservation Forum (RCF) in Bangkok, Thailand from 3-5 Sep 2024. My role involved writing reports in English and Japanese to summarize key points from the conference, conducting interviews with delegates, and writing articles based on those interviews.

Writing Samples: Reimagining Conservation in Thailand: A Nature Positive Future, Bridging Perspectives: Climate and Biodiversity Conversations from Egypt and Somalia

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Technical Assistant in Dabot Chatbot Project at University of Tsukuba

Years Worked: May 2023 - July 2024

"Dabot: Mr. Dax's Consultation Room" is a chatbot that automatically suggests useful coping information for people with a variety of neurological characteristics, mainly in the college age group. In this project, my responsibilities involved writing Google Apps Scripts for task automation and visualizing user data using Python.

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Account Manager of Chinese Social Media at Yamada Bee Farm

Years Worked: April 2021 - July 2022

In this role, I oversaw official accounts across diverse social media platforms and fostered collaborations with business partners in Japan, mainland China, Taiwan, Vietnam, and Singapore. This experience notably contributed to the development of my adept communication and negotiation skills. It was during this period that my interest in both social media research and the practical applications of natural language processing in business was sparked.

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Contact

If you'd like to get in touch, feel free to email me at: caidanmeng@gmail.com