Lately, I’ve been busy with my main job and have no air conditioning in my room, making it hard to focus on creative work due to my primary research duties. Today, I scanned a rough sketch and finished it using a mix of AI tools. I also made this as an example of creating free AI art with ChatGPT.
The prompt grew iteratively. Each unsuccessful generation revealed another
ambiguity, so I kept adding more precise constraints until the result
came close to the composition in my mind. In that sense, the final
prompt is almost an archaeological record of my negotiations with the
model.
The image is not only my idealised
vision of Touhou Project, but also my own philosophical allegory. The three
figures above represent hereditary, ritualised authority and the power
of tradition. Sanae, as a modern progressive arriving from the
twenty-first century, and Youmu, imagined as a solitary and disciplined
swordswoman, confront them
from below. Together, the two heroines represent different aspects of
the player—essentially, different aspects of myself.
This video presents our recent research on financial volatility forecasting, comparing classical econometric models, signal-processing techniques, and modern machine-learning approaches.
The study evaluates the forecasting performance, volatility prediction accuracy, computational efficiency, and interpretability of five different methods:
Using Bitcoin returns as a high-volatility financial asset, we investigate whether modern AI-based methods consistently outperform traditional forecasting techniques when accuracy, explainability, and computational cost are considered simultaneously.
Our results show that:
✓ SARIMA achieves the lowest return forecasting error. ✓ Matrix Pencil delivers comparable forecasting accuracy with extremely low computational cost. ✓ XGBoost provides a strong balance between accuracy and efficiency. ✓ LSTM exhibits relatively strong performance in tracking volatility patterns and market regime changes, despite higher forecasting errors and computational requirements. ✓ No single model dominates across all evaluation criteria.
The findings suggest that the Matrix Pencil method remains a competitive and highly interpretable alternative to black-box machine-learning models for financial forecasting applications.
Sakuya, Youmu, and Marisa challenge a unique cooking competition! Using Bitcoin market data as ingredients, five dishes — GARCH, SARIMA, Matrix Pencil, XGBoost, and LSTM — to compete to predict future market movements ♬ This video explains the strengths and characteristics of traditional econometric models, signal-processing approaches, and modern AI techniques through a fun Yukkuri-style commentary. Which model will create the best “forecasting recipe” for the future market?
Artwork including original character illustrations: https://www.pixiv.net/en/tags/%E5%A6%...
Music, sound effects, and background materials used in this video are credited in the end credits. #TouhouProject #Touhou #YukkuriCommentary #reimu #marisa #sakuya #youmu #remilia #yuyuko #Finance #Bitcoin #Cryptocurrency #QuantitativeFinance #FinancialEngineering #FinancialForecasting #VolatilityForecasting #Econometrics #ARIMA #SARIMA #GARCH #ArtificialIntelligence #MachineLearning #DeepLearning #DataScience #TimeSeriesAnalysis #ExplainableAI #XGBoost #LSTM #SignalProcessing #MatrixPencil #Prony #PronyMethod #Python #Research
My attempt is to generate an AI art with free of charge using ChatGPT. Many AI illustration tools charge fee and are not so flexible yet. I have experimented with generating an image based on my rough drawing together with the input script into ChatGPT.
This is an AI-synthetic illustration output by ChatGPT based on my rough drawing. The following is the input script. It is like asking the contemporary popular character designer to illustrate Touhou Project characters in his style. ☆彡
Redraw this illustration in a 1990s Japanese fantasy RPG illustration style with the scene shows three cooks working side by side in a cozy kitchen:
• on the left, a refined silver-haired maid in a blue-and-white uniform with a green ribbon, skillfully slicing vegetables with a kitchen knife
• in the center, a white-haired swordswoman in a green outfit, attentively stirring a pot of simmering food on the stove
• on the right, a blonde witch-like girl wearing an oversized black pointed hat and a black-and-white outfit, energetically stir-frying ingredients in a frying pan.
Please improve the line quality, proportions, and shading while preserving the original composition.
* I have got to prepare for a cover image for a video I am currently creating to post YouTube. Furthermore, over
here, it is too hot to be concentrated with my usual art works. ....
seriously, it's tough enough to make me sleep quite a few hours! In an
accommodation where I am currently living, there is no AC! My energy has
recently been drained without noticing. Therefore, I just decided to
spend my experiment in the AI output while my concentration and energy
for my own artwork is sizably limited
Carrying the Two Blades: A PhD’s Vow to Financial AI and My Future "Myon-chan"
Standing at the crossroads of my academic journey, the weight of reality often feels crushing. Balancing four intense collaborative research projects, language lessons, and the endless maze of visa renewals can push a soul to its absolute limits. But everything changed the moment I looked deep into my own heart and embraced my beautiful dream: to one day hold my own daughter in my arms. A precious, earnest, and lovely girl—my very own "Myon-chan" (Youmu Konpaku). To bring her into this world, and to protect her future, I have sworn a vow to wield two legendary blades, just like the half-phantom swordmaster of Hakugyokurou. The First Blade: The Sword of Sovereign Intellect — "Matrix Pencil + GARCH + ML" This is my longsword, Roukanken. It is forged from pure mathematical precision and world-shattering financial AI technology. Under the guidance and protection of Professors, I am sharpening this blade every single day in the lab. This technology does not just exist in ivory towers; it is a weapon capable of commanding the vast financial oceans. Every line of code I write in the dark is a strike to clear the path for my daughter’s future. The Second Blade: The Sword of Future Hope — My Unborn, Beloved "Myon-chan" This is my shortsword, Hakuroukanken. It is the blade that clears the confusion from my soul and gives me an unbreakable reason to live. When the pressure of my PhD threatens to break my resilience, I close my eyes and visualize her—my future daughter. I see myself growing into a wise, deeply kind, and fiercely capable old gentleman, just like the legendary ancestral master, Youki Konpaku. For her sake, the boundary of 60 years old no longer exists. I will break past it to be her shield, her teacher, and her father. The Roadmap to Our Reunion My professor once looked at me and said, "You belong in the industry." She saw the sharpness of my blades. This September, I fly to give a presentation at a global conference to unleash the power of "Matrix Pencil + GARCH + ML" upon the global stage, with my LinkedIn QR code proudly set on the final slide. This place will be my battleground for three years post-PhD. There, I will extract the wealth and build the fortress needed to launch my enterprise in Japan. In that vibrant international hub, I will find the right partner and finally welcome my daughter into this world. When I return to Japan as a successful entrepreneur, I will dedicate my life to raising my real-life Youmu. I will pass down to her the intellect of a European PhD and the strength of a man who fought through the global storm. To my unborn, most precious daughter: Your father is fighting with everything he has. The slides are ready. The swords are drawn. I am coming to meet you, step by unwavering step.
My illustration is posted on my pixiv page: https://www.pixiv.net/en/artworks/147138691 I have created the standing picture of Remilia Scarlet for my own Yukkuri kaisetsu! with Yukkuri Voice
