浦野義頼教授 URANO, Yoshiyori Professor

情報通信システム分野
Computer Systems and Network Engineering Area
✒：業績提出者
（以下 50 音順）
✒ 浦野義頼
教授
✒ 佐藤拓朗
教授
✒ 嶋本薫
教授
✒ 田中良明
教授
✒ 富永英義
兼担教授
URANO, Yoshiyori Professor
SATO, Takuro Professor
✒ 中里秀則
教授
✒ 松本充司
教授
✒ 渡辺裕
教授
✒ 小野欽司
客員教授
NAKAZATO, Hidenori Professor
MATSUMOTO, Mitsuji Professor
SHIMAMOTO, Shigeru Professor
TANAKA, Yoshiaki Professor
WATANABE, Hiroshi Professor
ONO, Kinji Visiting Professor
TOMINAGA, Hideyoshi Professor
浦野義頼教授
URANO, Yoshiyori Professor
国際会議
1
Ye Kyaw Thu, Ouk Phavy, Yoshiyori Urano,
“Positional Gesture for Advanced Smart Terminals: Simple Gesture Text Input for Syllabic Scripts Like Myanmar, Khmer and Bangla”,
Proceedings of the first ITU-T Kaleidoscope Academic Conference, Geneva, Switzerland, pp. 77-84, 2008. 5
【要約】
In the Next Generation Network (NGN), various kinds of advanced smart mobile terminals will be used for various
communication services. We believe that text typing on small mobile devices will become more popular than it is today and also
necessary for developing countries such as Myanmar (Burma), Cambodia and Bangladesh etc. In these countries, however, there
is no proper or easy text input method for mobile devices yet. Positional Gesture Text Input is a novel concept of text input for
syllabic scripts like Myanmar, Khmer and Bangla languages. Text input of syllabic scripts poses a unique challenge because
many syllabic characters are formed by combinations of consonants, dependent vowel signs, tones and subscript consonants etc.
And thus, text input for syllabic scripts is still difficult even with PC keyboards. In this paper, we propose very simple gesture
recognition for syllabic scripts text input based on their writing natures. It is accessible even for first time users and applicable for
many mobile computing devices such as tablet PCs, mobile phones, PDAs and portable game players etc.
2
Phavy Ouk, Ye Kyaw Thu, Mitsuji Matsumoto, Yoshiyori Urano,
“A Word-Based Predictive Text Entry Method for Khmer Language”
,
Proceedings of the 2008 International Conference on Information Reuse and Integration, Las Vegas, USA, pp. 214-219, 2008. 7
3
Hidehiro Kanemitsu, Yoshiyori Urano,
“A Monitoring Framework of WS-Resource Properties in WS-GRAM”
,
Proceedings of IEEE International Conference on Web Services (IEEE ICWS 2008), pp. 629-636, 2008. 9
【要約】
Grid computing has been widely spread in pragmatic areas and scientific research areas in order to achieve more powerful
computation than ordinary computation by single computer. Globus Toolkit4(GT4), which has been the de facto standard
middleware in Grid, gives to us many chances of submitting jobs, especially using WSRF technologies. However, in case of
3
cluster type grid using GT4, rules for job execution depend on a local scheduler(LS) which interacts with WS-GRAM in GT4, so
that clients can not reflect their own rules to behaviors in each worker node. In this paper, we formulate those potential problems
and solutions, whose main feature is to monitor Resource Property (RP) in WS-GRAM and notify its status to worker nodes.
Then we describe how to implement a mechanism for monitoring RP in WS-GRAM to achieve the transparent delivery of
client’s rules to worker nodes. Our experimental results show that our proposed architecture can be incorporated in WS-GRAM
without bottleneck in performance points of view.
4
Ye Kyaw Thu, Yoshiyori Urano,
“Common and User-Friendly Text Input Interfaces for Asian Syllabic Languages on Mobile Devices”,
Adjunct Proceeding of the 21st annual ACM Symposium on User Interface Software and Technology, Monterey, California, USA, pp. 27-30, 2008. 10
【要約】
We believe that text typing on small mobile devices will become more popular and necessary communication in Asian
developing countries such as Myanmar (Burma), Bangladesh, Nepal, Bhutan, Laos and Cambodia etc. In these countries,
however, there is no efficient and user-friendly text input method for mobile devices yet. Asian languages are syllabic languages
that derived from Indic script or Brahmi around BC third century. And thus, Myanmar language or Burmese, Bengali, Nepali,
Dzongkha (language of Bhutan), Lao and Khmer have common writing natures with Indian languages such as Hindi, Marathi,
Punjabi and Tamil etc. But current mobile devices key-mapping or text input methods such as multi-tap or T9 are based on
English and not directly applicable to syllabic languages, because writing natures of Asian syllabic languages are different and
have larger numbers of characters than English alphabets (e.g. Khmer has triple numbers of characters (i.e. 74) of English). My
research looks for common and user-friendly keyboard mappings and text input methods for Asian syllabic languages based on
their word formation or writing natures for mobile devices. We have already proposed 1) “Positional Mapping (PM)” for mobile
phone or Personal Digital Assistant (PDA) keyboard mapping 2) “Positional Gesture (PG)” for gesture text input interface and 3)
“Positional Prediction (PP)” for consonant cluster predictive text input.
5
Ye Kyaw Thu, Shrestha Pradyumna, Yoshiyori Urano,
“Analysis on Possible Combinations of Vowels with a Consonant of Nepali”
,
Proceedings of the 6th International Conference on Computer Applications (ICCA2009), Yangon, Myanmar, pp. 17-23, 2009. 2
【要約】
We present the number of possible combinations of vowels with a consonant, possible vowels combination patterns with a
consonant and the maximum length of vowels with a consonant of current Nepali language. This analysis is based on
pronounceable, meaningful and syllable formation structure of Nepali vowels with a consonant. We use our proposed Positional
Prediction text input prototype as a tool for producing candidate lists of possible vowels combination patterns with a consonant.
The results of this analysis will be useful for designing predictive text input methods for Nepali language.
6
Vu Truong Thanh, Yoshiyori Urano,
“Agent based low loss low delay handover scheme for SIP communication -The Case for UDP traffic”,
The 11th International Conference on Advanced Communication Technology (ICACT), PP. 2099-2012, 2009. 2
【要約】
To preserve ongoing connections and minimize the packet loss when the Mobile Node (MN) performs a handover, we introduce
the Low Loss Mobility Agent (LLMA) in to the SIP systems. This Agent works as an intermediate B2BUA between the MN and
CN to minimize the loss packet when MN experiences a handover. In this paper, we will provide details working procedure to
support the UDP session, and brief discussion on the TCP case when a handover occurs.
国内研究会
7
金光永煥，中里秀則，星合隆成，浦野義頼，
“実行粒度調整を目的とした分散処理タスクのクラスタリング”
，
信学技報，vol. 108，no. 14，CPSY2008-2，pp. 7-12，2008年4月
【要約】
分散環境でタスクを効率よく実行する場合，タスクの実行時間と通信遅延を考慮して実行粒度を調整することが重要
である．これまで我々は，タスク実行粒度調整のために DAG の最大経路長の増加を抑え，かつ通信遅延を抑えるた
めに各マシンでの実行サイズに下限値を設ける，
という特徴を持つ「タスクマージ」を提案した．ところがタスクマー
4
ジでは各タスクの通信と実行の同期がとられ，応答時間の短縮にはつながりにくいという問題がある．そこで，実行
と通信の同期を行わずにタスク同士をまとめる「タスククラスタリング」によって，応答時間を短縮することを検討
した．本稿では，このような粒度調整を目的としたタスククラスタリングを行う際に必要となる基準を考察した．
8
Ye Kyaw Thu, Yoshiyori Urano,
“LRUDC (Left, Right, Up, Down and Center) Button for Myanmar Language Software Keyboard”
,
The 128th Human Computer Interaction Symposium 2008, Translational Research Informatics Center (TRI), Kobe, Japan, SIGHCI, Information Processing Society of Japan (IPSJ) SIG Technical Reports, 2008-HCI-128, pp. 159-164, 2008. 5
【要約】
We propose the LRUDC (Left, Right, Up, Down and Center) button or five pressing areas button interface for Myanmar language
software keyboard. The text input method or pressing LRUDC button is based on our proposed “Positional Prediction”. With
LRUDC button interface, users can easily type one Myanmar consonant cluster (i.e. one consonant + other characters especially
vowels or subscripted consonant) because of no necessity to type combination of exact vowel character(s) or subscripted
consonant. The result of the initial user study shows that the current LRUDC button software keyboard prototype enables better
Keystrokes per Character (i.e. KSPC = 0.96) and user friendliness than “Win Myanmar Visual Keyboard Input”. Even first time
users were able to type at ~38.55 Characters per Minute with mouse and ~35.53 Characters per Minute with stylus pen by using
LRUDC button interface. And the concept of LRUDC button interface is applicable not only for Myanmar language but also for
other similar syllabic based languages or Brahmic family of scripts such as Khmer, Lao, Bangla, Thai, Tibetan, Hindi, and Nepali
etc.
9
金光永煥，盧翊，大谷佳裕，李吉憲，中里秀則，星合隆成，浦野義頼，
“分散環境における最悪応答時間の改善を考慮したタスククラスタリング”
，
信学技報，vol. 108，no. 361，CPSY2008-45，pp. 13-18，2008年12月．
【要約】
分散環境においてタスクを実行する場合に実行マシン数を制限しないタスクスケジューリングでは，タスク同士を集
約して各マシンへの割り当て単位（タスククラスタ）とするタスククラスタリングが有効である．タスククラスタの
数を実行マシン数に合わせる場合，タスククラスタリングの後にタスククラスタ同士をまとめる必要があるが，その
一方で実行の並列性が失われ，応答時間が増加する可能性がある．本稿では，実行マシン数を制限するためにタスク
クラスタリング時にクラスタサイズの下限値を設けた上で，応答時間を抑える手法を提案する．シミュレーションの
結果，タスク間のデータ転送時間が大きいほど，少ないマシン数で従来手法よりもスケジュール後の応答時間が抑え
られることが分かった．
10 Ye Kyaw Thu, Yoshiyori Urano,
“A Comparison of Myanmar PC Keyboard Layouts”
,
The 131st Human Computer Interaction Symposium 2009, Yufuin Kouminkan, Yufuincho, Yufu, Oita Prefecture, Japan, SIGHCI, Information Processing Society of Japan (IPSJ) SIG Technical Reports, 2009-HCI-131, pp. 15-21, 2009. 1
【要約】
Many PC keyboard layouts have been developed for Myanmar language (Burmese), but there is no standard keyboard layout yet.
This paper reports a comparison of well-known Myanmar keyboard layouts such as CE, Win Myanmar, Zawgyi Myanmar,
MyaZedi and Myanmar3 etc. The primary research focuses on examination of keyboard mapping and Keystrokes per Character
(KSPC). Its result shows that all of the mappings of current Myanmar keyboards are similar and based on the old Myanmar
typewriter keyboard layout. Another interesting point is that KSPC value depends on key assignments of various signs, dependent
consonant signs and subscript characters.
国内大会
11 Ye Kyaw Thu, Yoshiyori Urano,
“Analysis on Four Directional Arrow Keys (4DAK) and Left, Right, Up, Down and Center (LRUDC) Button Text Input Interfaces for Myanmar Language”,
Proceedings of the Forum on Information Technology (FIT2008), Keio University, Fujisawa, pp. 31-34, 2008. 9
12 豊川正人，筬島専，浦野義頼
「テレワーク導入のインセンティブに関する一提案」
FIT2008 第7回情報科学技術フォーラム，慶應義塾大学 SFC，pp. 397-398，2008. 9
5
13 Ye Kyaw Thu, Yoshiyori Urano,
“Positional Prediction Software Keyboard Layout for Myanmar PDA”
,
Proceedings of the 2008 IEICE Society Conference, Meiji University, Kawasaki, pp. S155- S156, 2008. 9
14 Ye Kyaw Thu and Yoshiyori Urano,
“RomanPP: Myanmar Text Typing with Consonants Romanization and Possible Vowel Combinations Prediction with 4 Directional Arrow Keys”,
Proceedings of the 71st IPSJ National Conference, Ritsumeikan University, Shiga Prefecture, pp. 4-17-4-18, 2009. 3
15 Ye Kyaw Thu, Shrestha Pradyumna and Yoshiyori Urano,
“PP_Clickwheel: Positional Prediction Nepali Text Input Interface with Clickwheel”
,
Proceedings of the 2009 IEICE General Conference, Ehime University, Matsuyama, pp. S49-S50, 2009. 3
16 Huotely YIN, Ye Kyaw Thu, Yoshiyori Urano,
“Online Khmer Handwriting Character Recognition by employing Nearest Neighbor and DTW Algorithms”,
Proceedings of the 2009 IEICE General Conference, Ehime University, Matsuyama, pp. S47-S48, 2009. 3
17 Chinzorig Sashka, Ye Kyaw Thu, Yoshiyori Urano,
“Personalized review based recommendation system for tourism domain”
,
Proceedings of the 2009 IEICE General Conference, Ehime University, Matsuyama, pp. 95, 2009. 3
著書
18 N. Baloian, W. Luther, D. Sofker, Y. Urano (Eds.),
“Multimodal Human-Maschine Interaction in Different Application Scenarios”
,
Logos Verlag, Berlin, Germany, 2008. 9
表彰
19 浦野義頼，
総務大臣賞，第40回世界情報社会・電気通信日のつどい，東京，
2008年5月 .
講演
20 Yoshiyori Urano,
“Global Collaboration for Building new Learning Paradigms”
,
International DADD-PhD Summer Academy on Multimodal Human-Machine Interaction in Different Application Scenarios, University of Chile, Santiago, Chile, 2008. 9
21 Da Yang, Haruka Murata, Liu Song, Yoshiyori Urano,
“Computer-assisted Chinese Language Learning Systems at Waseda University”
,
DLI 2008, Tokyo, Japan, 2008. 11
22 Yoshiyori Urano,
“Challenges for building new Learning Paradigms”
,
The International Conference on Computer Applications 2009 (ICCA2009), Yangon, Union of Myanmar, 2009. 2
23 Ye Kyaw Thu, YIN Huotely, Yoshiyori Urano,
“Romanized Khmer Language Handwriting Interface for Non-Natives”
,
Interaction 2009, National Institute of Informatics (NII), Tokyo, Japan, 2009. 3
6
24 Yoshiyori Urano,
“Mobile Phone Based Learning Paradigms”
,
First International Conference on e-Learning and Distance Learning (eLi 2009), Riyadh, Saudi Arabia, 2009. 3
雑誌：解説記事
25 浦野義頼，
“アジア太平洋地域の ICT 人材育成─ APT プログラムに参加して得たもの─”
，
ITU ジャーナル，Vol. 38，No. 8，pp. 56-59，2008. 8
佐藤拓朗教授
SATO, Takuro Professor
ジャーナル論文
1
Anas Basalamah and Takuro Sato,
“An FEC Adaptive Multicast MAC Protocol on Communications”
,
IEICE Transaction on Communication, Vol. E92-B, May 2009.
【要約】
For wireless multicast applications like multi-media conferencing, voice over IP and video/audio streaming a reliable
transmission of packets within short delivery delay is needed. Moreover, reliability is crucial to the performance of applications
like le transfer, distributed computing, chat and whiteboard sharing. Forward Error Correction (FEC) is frequently used in
wireless multicast to enhance Packet Error Rate (PER) performance, but cannot assure full reliability unless coupled with
Automatic Repeat Request forming what is knows as Hybrid-ARQ. While reliable FEC can be deployed at dierent levels of the
protocol stack, it cannot be deployed on the MAC layer of the unreliable IEEE802.11 WLAN due to its inability to exchange
ACKs with multiple recipients. In this paper, we propose a Multicast MAC protocol that enhances WLAN reliability by using
Adaptive FEC and study it’s performance through mathematical analysis and simulation. Our result show that our proto
2
Guo Wei Chen, Kenichi Itoh, Takuro Sato,
“Enhanced of beaconless location based routing with signal strength assistance for Ad-Hoc network”
,
IEICE Transaction Fundamentals/ communication, Vol. E91-B, No. 07, July 2008.
【要約】
Routing in Ad-hoc networks is challengeable due to the mobility of the nodes. Location-based routing protocols, unlike other
protocols which rely on flooding, excel in network scalability. Furthermore, new location-based routing protocols, like, e.g. BLR,
IGF, & CBF have been proposed, with the feature of being beaconless, which improve more in terms of scalability and battery
consumption. Such beaconless routing protocols can work efficiently in dense network area. However, these protocols’
algorithms have no immunity from routing into sparse area. In this article, historical signal strength has been added as a factor
into the BLR algorithm, which improves in avoidance of routing into sparse area, and consequently improves the global routing
efficiency.
3
爲末和彦，森屋正弘，佐藤拓朗，
“ダイレクトコンバージョン受信機の適応切替え DC オフセットキャンセラー方式の検証”
，
IEICE 論文誌 B, Vol. J91-B No. 4, April 2008.
【要約】
ダイレクトコンバージョン受信機は，搬送波と同一周波数の局部発振器（Local Oscillator, LO）を混合してベースバ
ンド信号を復調する方式である．ヘテロダイン受信機と比較して，イメージ除去 BPF（Band Pass Filter）及び IF
（Intermediate Frequency）処理の不要化により，低消費化・小型化・低コスト化を実現することができる．しかし，
ダイレクトコンバージョン受信機は，ミクサ入力における LO と信号パス間のリークや強いレベルの外部干渉波に
7

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