Search Results 1-20 of 8994

  • Aerial drone observations identified a multilevel society in feral horses

    Maeda Tamao , Ochi Sakiho , Ringhofer Monamie , Sosa Sebastian , Sueur Cédric , Hirata Satoshi , Yamamoto Shinya

    野生化したウマの重層社会をドローンからの観察により解明. 京都大学プレスリリース. 2021-01-18.

    Scientific Reports (11), 2021-12

    IR 

  • Stress Estimation Based on Spatiotemporal Analysis of Smartphone Usage and Sensor Data  [in Japanese]

    濱谷 尚志 , 落合 桂一 , 山本 直樹 , 深澤 佑介 , 木本 勝敏 , 上西 康平 , 太田 順 , 寺澤 悠理 , 沖村 宰 , 前田 貴記

    近年わが国ではスマートフォンの普及が進んでおり,スマートフォンを用いたヘルスケア技術に期待が高まってきている.スマートフォンはユーザが日々持ち歩き,使われるものであるため,ユーザの心理状態を反映することが期待できる.本研究では,ユーザのスマートフォン利用や持ち歩きによって収集されるログデータについて,時間的観点,空間的観点の両観点からログを分析し,利用者のストレスを推定する手法を提案する.その結果 …

    情報処理学会論文誌 62(4), 1113-1127, 2021-04-15

    IPSJ 

  • Zooplankton monitoring using a twin NORPAC net during the 61st Japanese Antarctic Research Expedition in austral summer 2019–2020

    … As a part of the monitoring programs of the Japanese Antarctic Research Expedition (JARE), zooplankton sampling using a NORPAC (NORth PACific) standard net has been routinely carried out since JARE-14 (1972/73 season) to estimate the long-term trends of abundance, species composition and their temporal/spatial variation in the uppermost 150 m of the Indian Ocean sector of the Southern Ocean. … Data collected on these fixed schedule seems to be ideal for long-term monitoring work in this region. …

    Polar Data Journal (5), 69-79, 2021-04

    IR  DOI 

  • Hakui Population flow Analysis Using Mobile Spatial Data ~ Using a Non-negative Matrix Factorization ~  [in Japanese]

    原田 魁成 , 寒河江 雅彦 , HARADA Kaisei , SAGAE Masahiko

    … We extracted useful features from Mobile Spatial Data. … Specifically, we applied a Non-negative Matrix Factorization (NMF), which is a method of decomposing the original data into two additive matrices, to extract features of daytime and nighttime demography. … By applying Sparse Non-negative Matrix Factorization to the same data, we extracted features more clearly than NMF. …

    人間社会環境研究 = Human and socio-environmental studies (41), 63-74, 2021-03-31

    IR 

  • Parameter estimation in spatial econometric models with non-random missing data

    Seya Hajime , Tomari Masashi , Uno Shohei

    Applied Economics Letters 28(6), 440-446, 2021-03-30

    IR 

  • Tree size and spatial distribution data of Populus tremula var. davidiana stand established by controlled burn at Ashoro research forest, Kyushu university in 1995 and 2015  [in Japanese]

    田代 直明 , 中井 武司 , 新妻 二郎 , 馬渕 哲也 , 久保田 勝義 , 井上 幸子 , 南木 大祐 , 中村 琢磨 , 村田 秀介 , 内海 泰弘

    チョウセンヤマナラシは山火事撹乱後に根萌芽で生育地を広げる先駆種である。用材としての価値の低さから,高齢まで伐採されずに残っている林分は少ないが,九大北海道演習林には,1945 年以前に旧陸軍軍馬補充部が行った火入れによって成立した林分が学術参考保護林として維持されている。この希少な高齢のチョウセンヤマナラシ林分について,1995 年と2015年に行われた毎木調査のデータを報告する。

    九州大学農学部演習林報告 (102), 61-62, 2021-03-22

    IR  DOI 

  • Use of GIS in the Analytical Methodology of Local Public Finance  [in Japanese]

    吉弘 憲介

    … However, very few studies in the field of local government finance in Japan utilizingGIS have been conducted so far.Therefore, this paper presents three specific examples of analysis using GIS concerning issues in local government finance theory.The first is a spatial analysis of intergovernmental fiscal relations using coropleth maps. …

    桃山学院大学総合研究所紀要 = ST. ANDREW'S UNIVERSITY BULLETIN OF THE RESEARCH INSTITUTE 46(3), 83-97, 2021-03-22

    IR 

  • A study of FPGA-based real-time action estimation with multiple accelerometers

    Xin Du , Yutaka Shinkai , Mizuki Itoh , Yoshiki Yamaguchi

    Proceedings of Asia Pacific Conference on Robot IoT System Development and Platform (2020), 71-72, 2021-03-15

    IPSJ 

  • Diversity of dominant soil bacteria increases with warming velocity at the global scale

    Kanzaki Yoshiaki , Takemoto Kazuhiro

    … Using a global dataset of bacteria, we performed spatial analysis to evaluate the effects of warming velocity and human activities, while statistically controlling for the potentially confounding effects of current climate and geographic parameters with global climate and geographic data. …

    Diversity 13(3), 120-1-120-11, 2021-03-12

    IR 

  • R&D to Utilize Existing Strengths, R&D to Create New Strengths  [in Japanese]

    津田 雅之

    Journal of the Japanese Society for Artificial Intelligence 36(2), 119-124, 2021-03-01

    J-STAGE  JSAI 

  • A STUDY ON 'PLACE' FUNCTION OF THE BUILT ENVIRONMENT SURROUNDING BUS STOPS IN JAPANESE LARGE CITIES  [in Japanese]

    MIURA Shino , YOSHIDA Munehito , TANAKA Shinji , ARIYOSHI Ryo

    … The research aims to clarify the spatial elements and their appropriate layout of the built environment surrounding bus stops co-existing with the function of "place" … The cross-tabulation and multivariate analysis were implemented, applying the findings of the questionnaire and field survey to collect both subjective data of users' opinions to the bus stop environment and objective data of users' activity. …

    Journal of Architecture and Planning (Transactions of AIJ) (781), 949-959, 2021-03

    J-STAGE  AIJ 

  • Is Using Religious Facilities in Urban Areas as Evacuation Shelters Possible? : Focus on Disaster Response Capabilities and the Disaster Mitigation Efforts  [in Japanese]

    沈 一擎 , 稲場 圭信 , Shen Yiqing , Inaba Keishin , イナバ ケイシン

    一般論文平成25年の災害対策基本法の改正に伴い、地区における自発的な防災活動に関する地区防災計画制度が創設され、市民による「共助」がさらに重視されるようになった。宗教施設の避難所活用に関する研究に関心がもたれるようになったものの、都市部における宗教施設の災害時避難所活用の可能性に焦点を当てた考察はまだ不十分である。現代都市では空間的偏在構造・地域的分化が存在し、各地域のコンテクストに応じて人口・収 …

    災害と共生 4(2), 11-23, 2021-03

    IR  DOI 

  • A Study on Inter-State Migration Patterns in India: Analysis Using Coefficient of Variation <Article>

    KATSUMATA Yutaro

    … Specifically, the focus is on the spatial concentration patterns of migration, with the analysis based on the Census of India 1991 and 2011 data using the coefficient of variation (CV). …

    Journal of Urban and Regional Studies on Contemporary India 7(2), 27-40, 2021-03

    IR  DOI 

  • Japanese travel behavior trends and change under COVID-19 state-of-emergency declaration: Nationwide observation by mobile phone location data

    Hara Yusuke , Yamaguchi Hiromichi , 原 祐輔 , 山口 裕通

    金沢大学理工研究域地球社会基盤学系

    Transportation Research Interdisciplinary Perspectives (9), 100288, 2021-03

    IR  DOI 

  • Relating Hydraulic-Electrical-Elastic Properties of Natural Rock Fractures at Elevated Stress and Associated Transient Changes of Fracture Flow

    Sawayama K. , Ishibashi T. , Jiang F. , Fujimitsu Y.

    … however, quantitative interpretations are hampered by the paucity of relevant geophysical data for fractured rock masses. … This discrepancy arises from the different sensitivities of these quantities to microstructure: velocity is sensitive to the spatial distribution of asperity contacts, whereas permeability and resistivity are insensitive to contact distribution, but instead are controlled by fluid connectivity. …

    Rock Mechanics and Rock Engineering, 1, 2021-02-24

    IR 

  • Spatial Extension of Mixed Analysis of Variance Models

    Sato Takaki , Matsuda Yasumasa

    DSSR Discussion Papers (120), 1-31, 2021-02

    IR 

  • A Study on the Label Noise Impact on the Hyperspectral Image Classification

    Meizhu Li , Shaoguang Huang , Aleksandra Pizurica

    IEICE Proceeding Series (64), ICTF2020_paper_25, 2021

    DOI 

  • Classification of Microstructures of Al–Si Casting Alloy in Different Cooling Rates with Machine Learning Technique

    Qiu Zixiang , Sugio Kenjiro , Sasaki Gen

    … The classification rate change with the number of images in training data was tested and a suitable number of images for training in the machine learning process was found.</p> …

    MATERIALS TRANSACTIONS, 2021

    J-STAGE 

  • THE IMPACT OF HIGHWAYS ON REGIONAL EMPLOYMENT AND ESTABLISHMENTS' LOCATION: EVIDENCE FROM JAPAN  [in Japanese]

    OTAZAWA Toshimori , MOROHASHI Katsuhiko , YOKOYAMA Shodai

    <p> 本研究では,我が国におけるインフラ・ストック効果計測の一事例として,高速道路整備による雇用創出効果および立地促進効果の推定を行う.具体的には,1996年から2014年の間に供用開始された高速道路インターチェンジが周辺地域の雇用や事業所の立地に及ぼす因果効果を差分の差分法を用いて推定する.その際,日本全国からランダムに抽出した地点の周辺地域を候補とし,傾向スコアマッチングを用いて …

    Journal of Japan Society of Civil Engineers, Ser. D3 (Infrastructure Planning and Management) 77(2), 52-61, 2021

    J-STAGE 

  • SPATIAL EXTRACTION METHOD OF PAVEMENT DETERIORATION POINTS FOR REPAIR TRIAGE ON RESIDENTIAL ROADS  [in Japanese]

    ASADA Takumi , KACHI Kota , ARIMURA Mikiharu

    <p>本研究では,生活道路を対象として,近隣住民や修繕効率化を考慮した舗装劣化箇所の面的な抽出手法を構築した.具体的には,舗装点検や住宅立地のデータを用い,舗装ひび割れ率と住宅の空間分布に基づいて修繕対象の優先順位付けを行う.まず,舗装点検データを用いて,ひび割れ率が正の空間的自己相関を有することを明らかにした.次に,住宅近接性を考慮した修繕必要度を導入し,ひび割れ率の空間ラグとの関係 …

    Journal of Japan Society of Civil Engineers, Ser. D3 (Infrastructure Planning and Management) 76(5), I_85-I_92, 2021

    J-STAGE 

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