If you work in IoT, environmental sensing, or data systems, forest soil monitoring is one of the most technically interesting problems you'll encounter. The system you're trying to measure is extraordinarily complex, the variables are deeply interdependent, and the consequences of getting it wrong — or not monitoring at all — are significant. The Problem Space: What You're Actually Measuring Soil
Data is no longer treated as a byproduct of business operations and has become one of the most valuable organizational assets. Every interaction on a banking application, e-commerce platform, hospital system, logistics network or social media service generates data continuously. As organizations increasingly adopt digital workflows, cloud platforms, machine learning systems and real-time applicati
In modern data-driven organizations, managing and analyzing data efficiently is critical. OLAP (Online Analytical Processing) and OLTP (Online Transaction Processing) are both integral parts of data management, but they have different functionalities. Understanding how they differ, and how they complement each other is essential for anyone working with data systems. Online Transaction Processing (
SQL is widely known for data querying and manipulation but systems do grow; data becomes larger; processes become repetitive and operations become sensitive. SQL has some features which enables it to be considered a fully fledged programming language. Some of the features which I discuss in this article are procedures, functions and transactions. Each of these concepts serve distinct purposes. Sto
There's about $400 of meat, milk, and miscellaneous condiments in my kitchen fridge at any given time. It runs 24/7, makes a quiet humming noise, and gives no indication when something's wrong until you open the door three days later and recoil. The freezer compartment is worse: a slow failure can defrost everything before you notice the puddle. I already had a TP-Link P110 smart plug on the fridg
One of the recurring challenges while building IoT systems is testing device communication, telemetry handling, MQTT flows, and event-driven architectures without constantly relying on physical hardware. To solve this problem, I recently started building a lightweight IoT Simulator CLI focused on helping developers simulate virtual devices directly from the terminal. The project is designed for de
選定理由 Paper: https://arxiv.org/abs/2512.01020 【社会課題】 【データの設計と従来技術の限界】 Issue Tree（法的論点ツリー）に変換し、葉ノードに対しルーブリック基準を適用可能にした。原告・被告・裁判所の主張をツリー構造で整理した約24,000インスタンスのデータセットを構築。評価軸は「論点カバレッジ」と「正確さ」の2次元。以下がサンプルである： 【原告の主張】被告は540万円を支払え └─【原告】保険金の支払い義務がある ├─【原告】死亡は突発的・偶発的な事故だった │ └─【原告】餅を食べて窒息死＝外因による傷害 │ └─【被告】死因は既往症の可能性が高い └─【裁判所の結論】突発的事故と認定 ただし窒息死は証明不十分 この
Every device you own has a speaker and a microphone. I decided to use them for something useful. Natural disasters knock out cell towers. WiFi dies at conferences. Underground sensors need to offload data where nothing reaches. Bluetooth pairing is painful and range-limited. LoRa is great but requires hardware you don't have. Sound doesn't care about any of that. Every phone, every laptop, every e