A Wearable LED Matrix Sign System@ACM SIGUCCS2015Takashi Yamanoue
A Wearable LED Matrix Sign System Which Shows a Tweet of Twitter and Its Application to Campus Guiding and Emergency Evacuation @ ACM SIGUCCS 2015, Lightning talks.
A Technique to Assign an Appropriate Server to a Client, for a CDN Consists ...Takashi Yamanoue
This paper discusses a technique to assign an appropriate server to a client for a content delivery network (CDN). We assume that the CDN consists of not only servers in the global Internet but also servers in hierarchical private networks. To use a common web browser as the client, this technique does not use broadcasting or multicasting. When a client is placed in a private network and a server of the CDN is also placed in the same private network, the client is connected to the server automatically by using this technique. When a client is placed in a private network and no CDN server is in the private network, or when the client is placed in the global network, the client is connected to a server in the global network automatically. This technique could improve the bandwidth between a server and a client when they are placed in the same private network because the TCP bandwidth heavily depends on latency. The CDN user does not need to know the location of a server. This technique does not use DNS because a CDN server in a private network is not always registered in the DNS.
Wiki に書いたスクリプトに従って, 自動的に Twitter で tweet する情報提示システムと, その開発と利用例について述べる. ここで, 実際にtweet するホストと スクリプトが書かれている Wiki のサーバのホストとは独立している. このシステムを使って着る電光掲示板を拡張し, それを使って, フルマラソンのスタートからゴールまで, 周りの参加者や沿道の観衆にメッセージを送り続けることができた. このシステムを拡張し, インターネット上の応用システムの障害対策や, ハードウェアやソフトウェアの更新等によるダウンタイムの低減に役立てることについても検討を行う.
A system which tweets messages automatically, is shown. The system is a kind of bot networks, bots of which are controlled by commands on a wiki page, according to the script in the wiki page. We have constructed a wearable LED matrix sign which tweets automatically, using this system, and we have applied this to a public relations in a full marathon race. We also consider to use the structure of this system to enhance the resilience of application systems.
A Wearable LED Matrix Sign System@ACM SIGUCCS2015Takashi Yamanoue
A Wearable LED Matrix Sign System Which Shows a Tweet of Twitter and Its Application to Campus Guiding and Emergency Evacuation @ ACM SIGUCCS 2015, Lightning talks.
A Technique to Assign an Appropriate Server to a Client, for a CDN Consists ...Takashi Yamanoue
This paper discusses a technique to assign an appropriate server to a client for a content delivery network (CDN). We assume that the CDN consists of not only servers in the global Internet but also servers in hierarchical private networks. To use a common web browser as the client, this technique does not use broadcasting or multicasting. When a client is placed in a private network and a server of the CDN is also placed in the same private network, the client is connected to the server automatically by using this technique. When a client is placed in a private network and no CDN server is in the private network, or when the client is placed in the global network, the client is connected to a server in the global network automatically. This technique could improve the bandwidth between a server and a client when they are placed in the same private network because the TCP bandwidth heavily depends on latency. The CDN user does not need to know the location of a server. This technique does not use DNS because a CDN server in a private network is not always registered in the DNS.
Wiki に書いたスクリプトに従って, 自動的に Twitter で tweet する情報提示システムと, その開発と利用例について述べる. ここで, 実際にtweet するホストと スクリプトが書かれている Wiki のサーバのホストとは独立している. このシステムを使って着る電光掲示板を拡張し, それを使って, フルマラソンのスタートからゴールまで, 周りの参加者や沿道の観衆にメッセージを送り続けることができた. このシステムを拡張し, インターネット上の応用システムの障害対策や, ハードウェアやソフトウェアの更新等によるダウンタイムの低減に役立てることについても検討を行う.
A system which tweets messages automatically, is shown. The system is a kind of bot networks, bots of which are controlled by commands on a wiki page, according to the script in the wiki page. We have constructed a wearable LED matrix sign which tweets automatically, using this system, and we have applied this to a public relations in a full marathon race. We also consider to use the structure of this system to enhance the resilience of application systems.
Bot と Wiki を使った試験的な並列プログラミング環境およびプログラム例を示す。情報セキュリティ担当者が頭を悩ませていた悪性Botの耐障害性と超並列性を、科学技術計算や一般的な計算を行うために有益な方向に利用することを目指す。例として動的計画法を用いて最小経路問題を解く並列プログラムを示す。ここで、必要な計算資源(BotとWebページの数)はノード数に比例し、最小経路を計算するのに必要な時間は、求まる最小経路の弧の数に比例する。
Monitoring Servers, With a Little Help from my BotsTakashi Yamanoue
This paper discusses a method of employing bots instead of people to monitor servers or server rooms. A bot is a remote controlled computer or a remote controlled program. A bot is usually a malicious program which is an element of a botnet. A botnet is used for doing malicious things such as spreading spam mails or doing DDoS Attacks. We have made bots and we are using bots for doing beneficial things such as monitoring a server instead of doing malicious things. We are monitoring a web server in our campus using a bot. This bot is tweeting whether the server is running or not periodically on the twitter. We are also monitoring a server room in our campus using another bot. This bot shows managers transition of the room temperature and others.
Portable Cloud Computing System – A System which Makes Everywhere an ICT Enh...Takashi Yamanoue
A "Portable Cloud Computing System (Portable Cloud)" is discussed. This system is a portable system that can turn any room into an ICT-enhanced classroom or an ICT-enhanced meeting-room. The Portable Cloud is a carrying case, which contains Wi-Fi access points, a network switch, and a server cluster. The server cluster includes a NAPT (Network Address Port Translation) router, a DHCP server, a captive portal, and application servers. The Wi-Fi access points, the NAPT router, the captive portal and the DHCP server make the space where the Portable Cloud is located, Internet accessible. The application servers contains applications such like "Distributed Web Screen Share (DWSS)", "Slide Plus", and "OwnCloud". The DWSS is a web application which transmits a live screen image of a PC to a large number of Web clients. Slide Plus is an interactive live slide presentation tool for a large audience with Web clients. OwnCloud is open source software by owncloud.com. This software enables file sharing among students and teachers similar to that found in Dropbox. We are using the Portable Cloud for our seminar class, meetings of grass-root groups, and academic conferences. We can't imagine holding our seminar class without the Portable Cloud.
HTML5 技術を利用してデスクトップ画面を、実時間で、数十台の端末に配信するシステムと、その管理システムを試作したことについて述べる。インターネットとプライベートネットワークのどちらにもサーバを配置することにより、授業や会議が遠隔地で分散して実施される場合にも対応できる。大量の端末に効率よくデータを配信するため、複数のサーバを利用するが、Web クライアントを自動的に適切なサーバに割り当てる機能も持っている。負荷分散機能も持っている。サーバを管理するため、Web 画面上でサーバを制御することができる。管理者が適切にサーバを加えたり減らしたりするため、端末数、Web クライアントで表示される単位時間あたりの表示画面枚数、Web クライアントにおけるネットワーク利用バンド幅などの変化も表示可能で、ログも採取できる。
Experimental Implementation of
a Real-time PC Screen Distribution System for Classes and Meetings using HTML5 Technology
Experimental implementation of a real-time PC screen distribution system for classes and meetings is discussed. This system uses HTML5 technology. So users of this system can use this system just using their own common Web browsers. Several tens web clients can share the screen of a PC. This system is a kind of CDN which unifies servers at the Internet and hierarchical private networks. An appropriate server of the CDN is selected automatically when a Web client is connected to the CDN. This system is also equipped with administration functions for managers of this system.
Bot と Wiki を使った試験的な並列プログラミング環境およびプログラム例を示す。情報セキュリティ担当者が頭を悩ませていた悪性Botの耐障害性と超並列性を、科学技術計算や一般的な計算を行うために有益な方向に利用することを目指す。例として動的計画法を用いて最小経路問題を解く並列プログラムを示す。ここで、必要な計算資源(BotとWebページの数)はノード数に比例し、最小経路を計算するのに必要な時間は、求まる最小経路の弧の数に比例する。
Monitoring Servers, With a Little Help from my BotsTakashi Yamanoue
This paper discusses a method of employing bots instead of people to monitor servers or server rooms. A bot is a remote controlled computer or a remote controlled program. A bot is usually a malicious program which is an element of a botnet. A botnet is used for doing malicious things such as spreading spam mails or doing DDoS Attacks. We have made bots and we are using bots for doing beneficial things such as monitoring a server instead of doing malicious things. We are monitoring a web server in our campus using a bot. This bot is tweeting whether the server is running or not periodically on the twitter. We are also monitoring a server room in our campus using another bot. This bot shows managers transition of the room temperature and others.
Portable Cloud Computing System – A System which Makes Everywhere an ICT Enh...Takashi Yamanoue
A "Portable Cloud Computing System (Portable Cloud)" is discussed. This system is a portable system that can turn any room into an ICT-enhanced classroom or an ICT-enhanced meeting-room. The Portable Cloud is a carrying case, which contains Wi-Fi access points, a network switch, and a server cluster. The server cluster includes a NAPT (Network Address Port Translation) router, a DHCP server, a captive portal, and application servers. The Wi-Fi access points, the NAPT router, the captive portal and the DHCP server make the space where the Portable Cloud is located, Internet accessible. The application servers contains applications such like "Distributed Web Screen Share (DWSS)", "Slide Plus", and "OwnCloud". The DWSS is a web application which transmits a live screen image of a PC to a large number of Web clients. Slide Plus is an interactive live slide presentation tool for a large audience with Web clients. OwnCloud is open source software by owncloud.com. This software enables file sharing among students and teachers similar to that found in Dropbox. We are using the Portable Cloud for our seminar class, meetings of grass-root groups, and academic conferences. We can't imagine holding our seminar class without the Portable Cloud.
HTML5 技術を利用してデスクトップ画面を、実時間で、数十台の端末に配信するシステムと、その管理システムを試作したことについて述べる。インターネットとプライベートネットワークのどちらにもサーバを配置することにより、授業や会議が遠隔地で分散して実施される場合にも対応できる。大量の端末に効率よくデータを配信するため、複数のサーバを利用するが、Web クライアントを自動的に適切なサーバに割り当てる機能も持っている。負荷分散機能も持っている。サーバを管理するため、Web 画面上でサーバを制御することができる。管理者が適切にサーバを加えたり減らしたりするため、端末数、Web クライアントで表示される単位時間あたりの表示画面枚数、Web クライアントにおけるネットワーク利用バンド幅などの変化も表示可能で、ログも採取できる。
Experimental Implementation of
a Real-time PC Screen Distribution System for Classes and Meetings using HTML5 Technology
Experimental implementation of a real-time PC screen distribution system for classes and meetings is discussed. This system uses HTML5 technology. So users of this system can use this system just using their own common Web browsers. Several tens web clients can share the screen of a PC. This system is a kind of CDN which unifies servers at the Internet and hierarchical private networks. An appropriate server of the CDN is selected automatically when a Web client is connected to the CDN. This system is also equipped with administration functions for managers of this system.
Bot Computing using the Power of Wiki CollaborationTakashi Yamanoue
Bot computing using the power of Wiki collaboration and an experimental implementation of the bot running environment are discussed. While botnets are usually created for malicious purposes, the bot computing in this study aims to use bots for beneficial purposes. The massively parallel and persistence features of a botnet can enhance its computing power and high availability for beneficial computing. Bot computing can also enhance people’s collaboration by introducing dynamic Web pages to previously static Wiki networks. Parallel dynamic programming for solving a minimal path problem is shown as an example. Resources such as the number of bots and the number of web pages were proportional to the number of nodes, and the time to solve the minimal path problem was proportional to the number of arcs of the minimal path.
【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.