Starting from standard install and various "Debian internal" for mass-installation system, the talk goes on to describe generic "instant system generation" which shortens turnaround time from 10s of minutes to seconds. All based on Debian.
Prepared for kickstart meetup of FukuokaDebian.
Introduction to InfiniBand technology and its usage on Debian platform. Includes various examples of NAS/SAN over IB configuration (NFSoRDMA, SRP, and other standard IP and IPoIB based setups).
Introduction to InfiniBand technology and its usage on Debian platform. Includes various examples of NAS/SAN over IB configuration (NFSoRDMA, SRP, and other standard IP and IPoIB based setups).
Delivered in Akamai Japan Tech Week 2020.
Presented on pitfall when your performance measurement is not really measuring what you expect. Also comes with a guide on how you can do "real-device" measurement with Google Lighthouse, using various Android and Linux tools.
Delivered in Akamai Japan Tech Conf 2019.
Presented on how you can visualize a site traffic and build one's "Akamai Globe" which visualizes traffic happening worldwide across the globe. With appropriate selection of APIs and OSS stack, it is a doable DIY project in 50 minutes!
Quick technical introduction to QUIC, a base transport protocol that underlies latest HTTP/3 protocol.
This presentation was done in 2017, to provide attendees an idea on what can they expect from latest advancement in Internet protocol.
IoT Deep Dive - Be an IoT Developer for an HourTaisuke Yamada
My presentation on IoT development at "Akamai Tech Summit 2016" in Boston, USA.
The goal of the session was to provide attendees an idea on difficulties IoT developers would face, especially on reliable OTA (over-the-air) upgrade. It included hands-on lab based on micropython/ESP8266 as a quick tour on IoT development.
Short introduction of GDB/Python, with actual examples for debugging and (sort of) running Ruby-as-a-debugger-of-oneself on top of it.
This was prepared for YamiRubyKaigi 2011 (Darkness of RubyKaigi2011), but unfortunately gave up doing actual presentation due to too many pages.
mod_auth_ticket - Bringing Single-Sign-On to lighttpdTaisuke Yamada
Explains mod_auth_ticket, a newly developed module for lighttpd to make any website SSO-enabled. Also discusses development experience for lighttpd and some strength evaluation of crypto used by this module.
The CAcert Project - An Invitation to CAcert ATE in OSC/Tokyo 2011 (EN)Taisuke Yamada
Presentation done at TLUG 2011/2/19 tech meeting.
Includes introductory information on CAcert, and also an invitation to the first official CAcert. ATE (Assurer Training Event) Tokyo in Japan.
ATE Tokyo will be on Mar 5 (Sun), during OSC (OpenSource Conference) 2011 Tokyo/Spring at Waseda University (near Shinjuku).
An introduction to CAcert, a community-based root CA. Includes detailed instruction on actual assurance procedure and a guide on how to run an assurance event.
Embed Shogiboard - my first mediawiki extension -Taisuke Yamada
Celebrating historic victory of Akara 2010 (computer Shogi engine) over Ichiyo Shimizu (women's champion in Japan), this talk explains how to create MediaWiki extension to embed Shogi board in MediaWiki - and hopefully in Wikipedia in some future.
【DLゼミ】XFeat: Accelerated Features for Lightweight Image Matchingharmonylab
公開URL:https://arxiv.org/pdf/2404.19174
出典:Guilherme Potje, Felipe Cadar, Andre Araujo, Renato Martins, Erickson R. ascimento: XFeat: Accelerated Features for Lightweight Image Matching, Proceedings of the 2024 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) (2023)
概要:リソース効率に優れた特徴点マッチングのための軽量なアーキテクチャ「XFeat(Accelerated Features)」を提案します。手法は、局所的な特徴点の検出、抽出、マッチングのための畳み込みニューラルネットワークの基本的な設計を再検討します。特に、リソースが限られたデバイス向けに迅速かつ堅牢なアルゴリズムが必要とされるため、解像度を可能な限り高く保ちながら、ネットワークのチャネル数を制限します。さらに、スパース下でのマッチングを選択できる設計となっており、ナビゲーションやARなどのアプリケーションに適しています。XFeatは、高速かつ同等以上の精度を実現し、一般的なラップトップのCPU上でリアルタイムで動作します。
セル生産方式におけるロボットの活用には様々な問題があるが,その一つとして 3 体以上の物体の組み立てが挙げられる.一般に,複数物体を同時に組み立てる際は,対象の部品をそれぞれロボットアームまたは治具でそれぞれ独立に保持することで組み立てを遂行すると考えられる.ただし,この方法ではロボットアームや治具を部品数と同じ数だけ必要とし,部品数が多いほどコスト面や設置スペースの関係で無駄が多くなる.この課題に対して音𣷓らは組み立て対象物に働く接触力等の解析により,治具等で固定されていない対象物が組み立て作業中に運動しにくい状態となる条件を求めた.すなわち,環境中の非把持対象物のロバスト性を考慮して,組み立て作業条件を検討している.本研究ではこの方策に基づいて,複数物体の組み立て作業を単腕マニピュレータで実行することを目的とする.このとき,対象物のロバスト性を考慮することで,仮組状態の複数物体を同時に扱う手法を提案する.作業対象としてパイプジョイントの組み立てを挙げ,簡易な道具を用いることで単腕マニピュレータで複数物体を同時に把持できることを示す.さらに,作業成功率の向上のために RGB-D カメラを用いた物体の位置検出に基づくロボット制御及び動作計画を実装する.
This paper discusses assembly operations using a single manipulator and a parallel gripper to simultaneously
grasp multiple objects and hold the group of temporarily assembled objects. Multiple robots and jigs generally operate
assembly tasks by constraining the target objects mechanically or geometrically to prevent them from moving. It is
necessary to analyze the physical interaction between the objects for such constraints to achieve the tasks with a single
gripper. In this paper, we focus on assembling pipe joints as an example and discuss constraining the motion of the
objects. Our demonstration shows that a simple tool can facilitate holding multiple objects with a single gripper.
24. debconf configuration
…
tzdata tzdata/Zones/Etc select UTC
# Generate a new configuration file for OpenSSH?
openssh-server ssh/new_config boolean true
# New certificates to activate:
# Choices:
ca-certificates ca-certificates/new_crts multiselect
# for internal use
x11-common x11-common/xwrapper/actual_allowed_users
string console
# Do you want to risk killing active SSH sessions?
openssh-server ssh/use_old_init_script boolean true
25. using debconf, harder
debconf DB へのインポート
debconf-set-selections < config
debconf DB へのアクセス
#!/bin/sh
. /usr/share/debconf/confmodule
db_get mypackage/param
db_set mypackage/param "value"
db_input 'foo/bar' || true
...
API は sh/confmodule(3) と perl/Debconf::Client::ConfModule(3)
ただし激しく undocumented なので /var/lib/dpkg/info/ 見ると
もっと参考にはよい( mysql-server のが勉強になった)。