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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

Evolve exists to connect women entrepreneurs connect with one another, serve one another, and help one another overcome challenges in marketing, sales, networking, and professional development. [Add to Calendar](evolvecolumbus.eventcalendarapp.com) What to Expect: \~ Welcome team to greet you, introduce you to others, and make sure you feel a part of the group from your very first meeting \~ Welcome & Introductions: 15 second introductions \~ 15 Minute Speaker Spotlight: Member speaker who shares a bit of her story, how she got to doing what she does, and a tangible tip she uses to gain success in her business. No hard selling...no expectations. Simply giving the group an opportunity to get to know her and her journey. \~ 20 Minute Break Out Sessions: Small groups is where we connect best. Extroverted and Introverted alike get the opportunity to share on a deeper level and learn from one another. \~ Take Aways: Hear what the other groups talked about and share resources to grow yourself and your business \~ Grow Time!: Do you need a specific connection to a person, company, or industry? Share it with us! We love to open our networks to one another and grow together! Guests are always welcome. Please contact Mentor Director Donna Schomer at Donna@EvolveWomensNetwork.com for more information. We'd love to meet you!

Let's grab some coffee/food and share a morning chat! The East Market has an ample parking lot and outdoor and indoor seating. Grab a cup of coffee from Winston's Coffee & Waffles or on your way to East Market and meet us on the second floor - table behind or east of the elevator. If the weather cooperates we will be meeting in the patio. Per what this group is about: "Everyone is welcome! International transplants to Columbus who want to improve language skills, Columbus residents who want to discuss international travel and culture, and anyone who enjoys getting together for good conversations."

Bring your business cards and network in person with other business professionals! Gold Star Referral Clubs is one of the most established professional networking organizations in the country, with multiple groups in central Ohio. Join us!

**People Analytics 101: Making Sense of Compensation Data** Compensation data is one of the most widely used and widely misunderstood forms of people analytics. The session will cover where compensation data comes from, including market pricing data, internal payroll data, and benchmarking sources, and how companies think about structuring and analyzing that information. We will explore how compensation data is leveraged to set salary ranges, manage internal equity, support hiring and retention, and align pay with business strategy. A portion of the session will address common data challenges and limitations, such as market noise, inconsistent job matching, and incomplete datasets, while keeping the primary focus on practical use rather than technical depth. The session will also look ahead at where the space is going, including the growing impact of pay transparency laws, expanding pay equity requirements, and emerging regulations in the US and Europe that require organizations to report on gender and pay gaps. The goal is to give attendees a clear mental model for how compensation analytics works today and why getting it right is becoming increasingly critical. (note: we are back at Rev1 this month!) **About Our Speaker** [Alex Moore](https://www.linkedin.com/in/alexscottmoore/) is the founder of [Moore Cooperative](https://moorecooperative.com/), where he advises organizations on compensation strategy, pay equity, and people analytics. His work focuses on helping organizations like the Ohio Supreme Court design, analyze, and communicate compensation systems that are data-informed, defensible, and aligned with organizational goals. Alex lives in Granville, Ohio and has three little kiddos. More info at [cbusdaw.com](https://cbusdaw.com)

We will meet at the south entrance of the North Market (the side closer to Sweetwaters Coffee & Tea) and then stroll around together to the different vendors, getting some tea at bubbles tea and juice company if we want. Or, Sweetwaters Coffee & Tea is at 4587 Bridge Park Ave if you'd rather get some there and bring it with you to the North Market. There are garages with free parking, or sometimes on- street parking is possible. (Special note: If you are sensitive to crowds, this event may be one to pass up.) Here's what their website says: North Market Bridge Park is excited to bring back one of our favorite seasonal markets – the Valentine’s Day Market! Join us Saturday, February 7th from 10AM – 1PM for all things pink, heart-shaped, and sweet from your favorite local vendors and North Market Merchants. **WHAT TO EXPECT AT THIS MARKET:** * 25+ of your favorite local vendors selling Valentine’s goodies * Exclusive cocktails at Market Bar and drinks at Vinoteca * Brunch from your favorite Merchants * A chance to win windows from Renewal by Andersen **VENDOR LINEUP: coming soon!** https://northmarket.org/events/valentines-day-market-at-north-market-bridge-park-3/

Join us for a practical, founder-friendly deep dive into trademarks and brand protection with a licensed business and intellectual property attorney. **Speaker:** Gaea Kassatly Founder & Managing Attorney, GK Law Co. Startup & Intellectual Property Attorney In this session, we will break down what trademarks are, how they work, and how to use them strategically to protect and grow your brand. Whether you’re a startup founder, creative, or small business owner, this workshop will help you avoid common (and costly) trademark mistakes. ### **What we’ll cover:** * What qualifies as a trademark (and what doesn’t) * The core elements of a trademark, explained in plain English * Types of trademarks (word marks, logos, slogans, and more) * A detailed walkthrough of each trademark element * Non-traditional trademarks (sounds, colors, product shapes, trade dress, etc.) * Common trademark myths and pitfalls for small businesses * How to think about trademarks strategically as your business grows This is a paid event (small fee) to help ensure attendance and engagement. ⚠️ **Important note:** This event will be recorded. By registering and attending, you acknowledge and consent to being recorded. The session will include time for Q&A, and attendees will leave with a clearer understanding of how to protect their brand with confidence. 🎁 Bonus for attendees: Everyone who attends will receive a free consultation at the end of the workshop and will be entered into a raffle to win a free trademark clearance search (a $750 value).