Taxonomy

Welcome to OpenSearch Tokyo User Group ! OpenSearch Tokyo User Groupの第一回 ミートアップイベントを開催します！ OpenSearch は検索やObservabilityのワークロードのためのOSSです。 本イベントでは、第一回イベントということで、OpenSearchプロジェクトの概要やOSSの今後のロードマップ、OpenSearchのユーザからの体験話などをご紹介します。 扱わないトピック : AWSなどのベンダーサービス固有の話 イベント概要 日時: 2026年2月5日 (木) 18:30 開場 19:00-21:00 セッション 21:00〜懇親会 (22:00完全退館） イベント会場 Amazon Web Service Japan オフィス : 東京都品川区上大崎3-1-1 目黒セントラルスクエア21F (room number 21.001) https://maps.app.goo.gl/c1Zr7ff9kndRe2fGA タイムテーブル 1\. OpenSearch プロジェクト最新情報 2.ユーザーセッション① : 弥生株式会社 Kazuma Imaizumiさん * タイトル : OpenSearch Warm Tier設計の実践 - UltraWarm経験から学ぶIndex/Shard最適化 * 概要 : OpenSearchでのUltraWarm導入経験をもとに、OSS環境でも活用できるWarm Tier設計の実践的ノウハウを共有します。ISM（Index State Management）、Index、Shardの基本概念から、シャードサイズ設計のベストプラクティスと実運用での最適化、UltraWarmとWarm Tierで共通する設計考慮事項まで、具体的な設定例とともに解説します。実運用データ（週1TB、1,000以上のシャード、1シャード約100GB）での経験をもとに、理想と現実のギャップを踏まえた時系列データの効率的な管理とコスト最適化を目指す技術者向けの内容です。 3.ユーザーセッション② : Serverless Operations, Inc. Sonu Kimさん * タイトル : 「うまく言えない」検索を叶える ― OpenSearchと生成AIで作る類似プロジェクト検索 * 概要 : 「前に似たような案件があったはずだけど、どう検索すればいいか分からない」といった、うまく言語化できない検索が必要な業務があります。本セッションでは、OpenSearch を活用して類似プロジェクトを検索できる仕組みを構築し、業務に合わせて「何をどの程度似ていると判断するか」を柔軟にチューニングできる検索体験を実現した取り組みについてお話します。 また、あいまいな検索条件でもユーザーが求める情報に辿り着けるよう、生成AIを用いてデータを前処理・構造化するアプローチや、検索精度を高めるための工夫についても合わせてお伝えします。 4.ユーザーセッション③ : 株式会社ラクス Nobuhiro Inaguma さん * タイトル : VectorDBとしてのOpenSearch\~5,000万件超のベクトル検索をコストを抑えて運用する技術選定\~ * 概要 : 全文検索・分析基盤として知られるOpenSearchは、実は大規模なベクトル検索にも活用できます。本セッションでは、5,000万件超のベクトルを対象に、ベクトルDB導入時に課題になりがちなメモリコストの増加を、Disk-based vector searchの活用で抑えた事例をご紹介します。 懇親会について セッション終了後、簡単な軽食とドリンクをご用意する予定です。 \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- OpenSearch Tokyo User Groupについて OpenSearch Project Tokyo ユーザーグループは、OpenSearch ユーザーを中心としたコミュニティです。オープンソース版の OpenSearch、各種マネージドサービス上で実行されている OpenSearch エンジンをご利用の方は是非ご参加ください。ユースケースは検索に限定されません。分析、可視化など、OpenSearch がカバーするあらゆるトピックについて情報・意見交換していきましょう。 Welcome to the OpenSearch Tokyo User Group! We are hosting the first meetup event of the OpenSearch Tokyo User Group! OpenSearch is an open-source software for search and observability workloads. At this inaugural event, we will be introducing the overview of the OpenSearch project, the roadmap for the open-source software, as well as experiences shared by OpenSearch users. Topics we will not cover: Specific topics related top services provided by vendors like AWS. Event Details Date & Time: Thu,Feb,5 2026 \- 6:30 PM Doors open \- 7:00 PM \- 9:00 PM Sessions \- 9:00 PM \- 10:00 PM Networking \(complete departure by 10 PM\) Venue Amazon Web Services Japan Office: Meguro Central Square, \*-\*-\*, Kamiosaki, Shinagawa-ku, Tokyo 21F (room number 21.001) https://maps.app.goo.gl/c1Zr7ff9kndRe2fGA Agenda TBD Networking After the sessions, we will provide light refreshments and drinks. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- About the OpenSearch Tokyo User Group The OpenSearch Project Tokyo User Group is a community centered around OpenSearch users. If you are using the open-source version of OpenSearch or the OpenSearch engine running on managed services, please join us. The use cases are not limited to just search - we will also discuss topics around analytics, visualization, and any other areas that OpenSearch covers.

Ukulele Club is a fun group for all ages and skill levels! There is no teacher, but we all help teach each other. Think of songs you would like to learn, and we can learn them together. If you don't have an ukulele, we have extra ukuleles When: *almost* Every Saturday, 10am-11:30am Admission: food/drink order

### Tools in your AI's Toolbox : An introduction to MCP Servers The generative AI revolution has unlocked unprecedented capabilities, but the next frontier is agency: empowering models to interact with, query, and act upon the world. The current challenge is the “N x M integration problem,” where every AI model requires a custom, brittle integration for each external tool or data source. This approach simply doesn’t scale. How can we give an AI access to our sales leads, code repositories, or IoT devices in a standardized, secure, and reusable way? This session introduces Anthropic’s Model Context Protocol (MCP), the open-source framework designed to solve this challenge and become the universal connector—the USB-C port—for AI. MCP standardizes how AI models discover and use external tools, moving beyond simple function-calling to a robust, client-server architecture. We will dive into how this open protocol is creating a new ecosystem for building powerful, context-aware AI agents. Join this session for a developer-focused introduction where you will learn how to: Understand the core concepts of the open-source Model Context Protocol and its architecture. Utilize pre-built, open-source MCP servers to instantly connect AI to tools like Git, Slack, and databases. Build a custom MCP server to securely expose your own proprietary data and APIs as tools for any compliant AI. Move beyond bespoke integrations and contribute to a standardized, collaborative, and open ecosystem. Stop building one-off connectors and start building intelligent agents. This session will give you the practical knowledge to leverage MCP and create the next generation of AI that doesn’t just talk, but does. Want to be a speaker? submit your talk to our Call for Presenters!!! [https://sessionize.com/azure-cbus-2026/](https://sessionize.com/azure-cbus-2026/)

OWASP is ending use of Meetup, so I built an eventbrite for the event. https://www.eventbrite.com/e/ai-development-risk-case-studies-and-how-agentic-ai-is-the-future-of-appsec-tickets-1981450622150?aff=oddtdtcreator AI is transforming how software is designed, developed, and deployed, dramatically accelerating velocity while introducing new categories of risk. As organizations adopt AI-assisted coding, autonomous agents, and increasingly complex model interactions, traditional application security approaches struggle to keep pace. This talk examines emerging AI-driven risks through real case studies from the field, highlighting issues such as insecure code generation, data-leakage pathways, model manipulation, and evolving supply-chain threats. We will explore how engineering teams must adapt their people, processes, and governance models to secure AI-augmented development workflows effectively. The session will then introduce agentic AI as the next evolution in application security—autonomous systems capable of continuous analysis, multi-step reasoning, and real-time remediation. Attendees will learn how combining agentic AI with modern practices can reduce developer friction, improve coverage, and create a future-ready application security strategy designed for the demands of AI-native software development

Happy Holidays! The first Wednesday of January is 7th, and this is Orthodox Christmas. And i will be wishing everyone Merry Christmas in January, and i am sure many of you will be tired from all this socializing. That is why we are going to meet on February 4th. And we will continue discussing the Hot topic of our age an AI. We’ve spent the last few sessions learning how to *talk* to AI. We’ve mastered prompt engineering and "vibecoding" to build things faster. Now, it’s time for the next leap: **letting AI work for us while we sleep.** In this session, we are moving beyond simple chatbots to explore **Autonomous AI Agents.** Unlike standard tools that wait for you to type a command, Agents are designed to perceive a goal, plan a series of tasks, and execute them independently within your WordPress site. We will discuss **Generative vs. Agentic AI:** Understanding the shift from *"Write me a blog post"* to *"Monitor local Knoxville news and draft a weekly summary every Friday."* I am sure many of you have seen WordPress ads offering different Agentic tools like **Uncanny Automator**, **AI Engine**, or **n8n**. What do these tools do? How successful they are? And how implementable all these agents are for your current WordPress site? I will gather some info and make research. But please join us and bring your stories and experience on topic. See you!

Private Group. Closed to the Public Knowing ourselves and understanding our abilities is the first step toward wielding our gifts with control and accuracy. In subsequent classes we will verify and hone our talents with activities and discussion. These are hands-on workshops and participation is expected. The goal of our series will be to develop expertise in areas of particular interest such as mediumship, channeling, divination, healing and, etc.. Our ultimate directions will be determined by class members as we evolve. I look forward to sharing and discovering with you. - Cynthia

Dale Gnidovec, Curator of the Orton Hall Museum of Geology at The Ohio State University, will be presenting a program he has wanted to share with us for a long time: Plate Tectonics. His description of his program: Continents on the move - Nothing in Earth history makes sense without moving continents - it tells us why mountains, volcanoes, minerals, and fossils are where they are. This talk examines the evidence for continental drift, why it was disbelieved, and explains how the more-encompassing theory of plate tectonics was developed and eventually proven. Dale is an energetic, incredibly knowledgeable, and very entertaining speaker and this will be another wonderful program by Dale. Hope to see you there! Food and drinks will be provided at the event. Feel free to show up a little bit early to hang out and talk. Going forward our meetings will be hybrid. You can meet us in-person or attend online Join Zoom Meeting [https://us02web.zoom.us/j/87836564953?pwd=4Mi57ElZkDIFlb1fnlNwOJ0NiOK4tP.1](https://us02web.zoom.us/j/87836564953?pwd=4Mi57ElZkDIFlb1fnlNwOJ0NiOK4tP.1) Meeting ID: 878 3656 4953 Passcode: 760812 One tap mobile +19292056099,,87836564953#,,,,\*760812# US (New York) +13017158592,,87836564953#,,,,\*760812# US (Washington DC) The formal presentation will start at noon

Join members of the local UX and Digital Design community for a casual monthly breakfast. There _might_ be a little snow, but there _will_ be effectively infinite serve-yourself coffee, so it evens out if you ask me. Just a reminder, while the other locations are great too, we’re at the Lane Ave one this time.