MSc in AI

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AI/Data Science Case Studies

GSB Lecture Notes

GSB Yearbook

Sleep. It's something we all need but often take for granted. As people start to realize just how important it is for our health and well-being, the question of how we can detect and understand our sleep states becomes more critical. This paper takes a closer look at that question, breaking it down into five key sections that will guide us toward better solutions and deeper understanding.

I am in my early 40s and work at an office near Magok Naru Station and I live near Haengsin Station in Goyang City. I used to commute by company shuttle, but recently I've taken up cycling as a hobby and now commute by bike. The biggest reason I got into cycling was because of the positive image I had of Seoul's public bicycle program, Ddareungyi.

It's difficult to maintain blood stock at safe levels South Korea has recorded its lowest birth rate in history. In 2023, the country's total fertility rate was 0.72, raising concerns about various future issues. Among them, the potential blood supply shortage due to low birth rates has come into focus. According to the Korean Red Cross, by 2028, the demand for whole blood donations is expected to exceed supply. Moreover, this gap is anticipated to widen further.

Administrative Divisions Residential Districts, and Tax Systems Regions where administrative divisions overlap are exposed to different economic, social, and political issues than those without. While local governments in the regions compete to attract resources to satiate residents’ needs, they run into unexpected results and inefficiencies.

With economic uncertainty both domestically and globally, the surge in energy-related raw material prices this winter was 'expected.' Experts are urging the need to accurately predict winter energy consumption and come up with strategies to save energy. However, the industry is questioning the methods previously used to estimate energy consumption, claiming that these methods do not reflect reality.

Ⅰ. The Digital Advertising Market is Facing the Issue of Measurement Error Digital advertising has been growing explosively every year. Especially during the global pandemic, as the offline market significantly contracted, the shift in consumer focus to online platforms made digital advertising the mainstream in the global advertising market.

Having completed over half of my graduate courses and approaching graduation, I wanted to write a thesis in a field that heavily utilized machine learning and deep learning, rather than relying on traditional statistical analysis methods. This felt more aligned with the purpose of my graduate education in data science and artificial intelligence, making the experience more meaningful.

The real estate market is showing unusual signs. As global tightening begins, experts worry that the bubble in the domestic real estate market, which benefited from the post-COVID-19 liquidity, may burst. They warn we should prepare for a potential impact on the real economy. Since late last year, major central banks, including the U.S. Federal Reserve, have been raising interest rates to combat inflation. This has caused housing prices to decline, reducing household net worth and increasing losses for real estate developers, which could potentially trigger a recession.