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地域の日本語教育課題に関する教育実践プログラムの開発－三重県内の高校関係者との連携をもとに－
Get PDF本研究は，学生への教育として，地域の教育的課題である「日本語教育」に焦点をあてた教育実践プログラムの開発を行うことを目的とする．本稿では，地域と連携して行った実践を報告し，プログラムの効果と意義について検討した．学生の報告から，地域と連携しながら取り組むことが社会的課題と直接接する機会を増やすこと，課題解決は容易ではないが，多様な人と協働して工夫を重ね実践することの経験を通じ，学びを深める有意義なプログラムになりうることが示唆された．departmental bulletin pape
シアノ基とアルコキシカルボニル基を有するキノンメチド類のクロミック特性
Get PDFapplication/pdf三重大学大学院 工学研究科 博士前期課程 分子素材工学専攻 高分子設計化学研究室87pthesi
命令と呼び出しグラフによる類似コード推薦法
Get PDFapplication/pdfプログラミングにおいて，コードの再利用やライブラリの活用はその作業を効率化させる．しかし，ユーザがそれらの存在を知らずに，類似処理をするコードを記述してしまい，プログラミングが非効率になることがある．効率化のためには，ユーザが記述したコード片に対して類似処理をするコード片やライブラリを自動で推薦するシステムが必要である．
コード片やライブラリの推薦システムは主にコンテンツベースフィルタリングと協調フィルタリングの2 種に分けられる．前者はコード片が持つ情報を用いるため，ソースコードの構造やその処理内容などを考慮して推薦できる．一方，後者はユーザが記述したコード片やソースコードレポジトリなどで使用される関数やライブラリの使用傾向により推薦されるため，類似処理のコード片が推薦されない可能性がある．
また，ユーザが記述したコード片と推薦候補のコード片の間には，字句や構文が完全に一致しないことが多い．しかし，コンパイラによって翻訳された低水準なバイトコードや機械語レベルではコード片が類似するため，ソースコードの字句や構文に差異があっても推薦できる．また，コード片内で呼び出される関数やメソッドが全く異なる処理をする場合，コード片全体の処理が異なり，推薦対象とならない．そのため，呼び出す関数やメソッドの情報も考慮しなければならない．
そこで本研究では，命令と呼び出し関係を用いたコンテンツベースの類似コードの推薦手法を提案する．提案手法で扱う命令と呼び出し関係は，それぞれ特徴ベクトルと呼び出しグラフで扱う．特徴ベクトルはバイトコードや機械語から得られる命令の出現回数をベクトルにしたもので，呼び出しグラフは関数・メソッドの間の呼び出し関係を表すグラフである．また，呼び出しグラフの頂点は関数やメソッド，辺は関数・メソッド間の呼び出し関係を表し，頂点と辺には関数・メソッドの情報を属性に持つ．特徴ベクトルと呼び出しグラフから類似度を測り，それらの閾値の範囲を満たしたものでランキングし，類似処理をするコード片を推薦する．類似度を測る指標として，特徴ベクトルはコサイン相違度，呼び出しグラフは正規化グラフ編集距離を用いた．また，正規化グラフ編集距離において，置換操作にかかるコストを呼び出しグラフの頂点と辺が持つ属性で計算し，重みでどの属性を重視するか調整できるようにした．
提案手法の実験と評価のために，提案手法の実装と実験データの作成を行った．また，実験データを用いて提案手法での適切な重みと閾値の範囲を求めた．推薦の精度を測るために推薦結果上位k 位の精度を表す適合率@k，再現率@k を用いて評価した.三重大学大学院 工学研究科 博士前期課程 情報工学専攻 コンピュータソフトウェア研究室33pthesi
Mask R-CNN を用いたオフライン手書き楽譜自動認識の高精度化
Get PDFapplication/pdf三重大学大学院工学研究科情報工学専攻 ヒューマンコンピュータインタラクション研究室35pthesi
トリラテラルフィルタを用いた SIFTのGPUによる高速化
Get PDFapplication/pdf近年、ドローンによる空撮や物体測量など多視点からの撮影画像を利用し、3 次元形状を復元するStructure from Motion(SfM) が用いられてきている。SfM の計算にはScale-Invariant Feature Transform (SIFT) と呼ばれる特徴量抽出アルゴリズムが使用されており、SIFT 内で使用するフィルタとしてトリラテラルフィルタを採用することで精度が向上するが、計算量が増加し実行速度が低下する。
そこで本研究では、トリラテラルフィルタを用いたSIFT アルゴリズムをGPU 上に実装することで高速化する手法を提案する。提案手法では、トリラテラルフィルタの内部処理を画素ごとに並列化する。この内部処理の内訳として、Detail Bilateral Filter 関数の計算が大きな比重を占めている。この関数は一般的なフィルタと同様に画素ごとにその近傍画素を参照して計算を行うが、画素ごとにウィンドウサイズが可変であり計算量が均質でないという特徴を持つ。このため、GPU 上で単純に画素ごとの並列化を行うと計算量の異なるスレッドをSIMD 型で同時実行することになり、一部の計算コアがアイドルとなって実行速度が低下する。そこで提案手法では、スレッドの担当画素をウィンドウサイズでソートすることにより同時実行するスレッドの計算コストを均一化し、実行効率を向上させる。
性能評価を行うため、Detail Bilateral Filter をCPU、GPU に実装し、さらにGPU上で提案手法を適用した実装を行なった。これらを用いて実行時間を測定した結果、GPU 版はCPU 版に対して24～95 倍の速度向上が得られた。またGPU 版に提案手法を適用することで、さらに1～1.27倍の速度向上が得られた。
一方で、GPUとトリラテラルフィルタの使用がSIFT 計算に与える影響を評価するため、ガウスフィルタを使用するCPU 版、トリラテラルフィルタを使用するCPU 版及びGPU 版の３種類のSIFT 計算プログラムを実装し、結果の精度とマッチング数を比較した。その結果、いずれの実装でも高精度の対応結果が得られており、CPU 版とGPU 版でもトリラテラルフィルタを用いた場合の差異はなかった。またガウスフィルタと比較してトリラテラルフィルタを用いた場合はマッチングした特徴点の個数が3.4 倍に増えており、後者の優位性が示された。In recent years, Structure from Motion (SfM) has been used to reconstruct three-dimensional shapes using images taken from multiple viewpoints, such as aerial photography by drones and object surveys. A feature extraction algorithm called Scale-Invariant Feature Transform(SIFT) is used to calculate SfM, and adopting a trilateral filter as a filter used within SIFT improves accuracy, but increases the amount of calculation. The execution speed decreases.
Therefore, in this research, we propose a method to speed up the SIFT algorithm using trilateral filters by implementing it on GPU. In the proposed method, the internal processing of the trilateral filter is parallelized for each pixel. As a breakdown of this internal processing, the calculation of the Detail Bilateral Filter function occupies a large proportion. This function, like a general filter, performs calculations for each pixel by referring to its neighboring pixels, but has the characteristic that the window size is variable for each pixel and the amount of calculation is not uniform. For this reason, if you simply perform pixel-by-pixel parallelization on the GPU, threads with different calculation amounts will be executed simultaneously in SIMD type, and some calculation cores will become idle and the execution speed will decrease. Therefore, the proposed method equalizes the calculation cost of concurrently executing threads and improves execution efficiency by sorting the pixels assigned to each thread by window size.
In order to evaluate the performance, we implemented the Detail Bilateral Filter on the CPU and GPU, and also applied the proposed method on the GPU. As a result of measuring execution time using these, the GPU version was 24 to 95 times faster than the CPU version. Furthermore, by applying the proposed method to the GPU version, a further speedup of 1 to 1.27 times was obtained.
On the other hand, in order to evaluate the influence of the use of GPU and trilateral filters on SIFT calculations, we implemented three types of SIFT calculation programs: a CPU version using a Gaussian filter, a CPU version using a trilateral filter, and a GPU version.
We compared the accuracy and number of matching results. As a result, high-accuracy results were obtained with both implementations, and there was no difference between the CPU and GPU versions when using trilateral filters. Furthermore, when using a trilateral filter compared to a Gaussian filter, the number of matched feature points increased by 3.4 times, demonstrating the superiority of the latter.三重大学大学院工学研究科情報工学専攻 コンピュータアーキテクチャ研究室47pthesi
A Study on Disaster Response to Tsunami Warnings Announced Outside of Office Hours by a Gathering System Dependent on the Residential Areas of Local Government
Get PDFapplication/pdf三重大学大学院 地域イノベーション学研究科 博士前期課程 地域イノベーション学専攻60pthesi
International exchange through international students modelling long-sleeved kimonos and national costumes： "Tokugawa Ieyasu ＆ Hattori Hanzo at Mie University"
Get PDFOn Saturday, May 20, 2023, "Tokugawa Ieyasu and Hattori Hanzo at Mie University "was held in Mie University's Sansui Hall, sponsored by the general incorporated foundation "YAMATO Innovation" and Mie University Faculty of Humanities' Japanese Medieval History Laboratory. In addition, the International Ninja Research Center joined as co-sponsors along with Mie University Center for International Education & Research.
Ten international students participated in the third part, "Kimono and Folk Costume Fashion Show." It was a rare opportunity for international students to wear the Furisode or traditional costumes from their home countries, so it was a valuable event.
The participating students were able to walk proudly across the stage in our university's auditorium while their country's national anthem was sung and introduce themselves in Japanese. Many student emailed information about this events to their home countries, which seems to have served as ad advertisement for our university.
We would like to continue to support international students who come to our university to study Japanese, admire Japanese culture, and become a bridge between Japan and their home countries, so that they can have fulfilling lives as international students.departmental bulletin pape
The Effect of Photodynamic Therapy Using 5-Aminolevulinic Acid in Bone and Soft Tissue Sarcoma Cells
Get PDF三重大学博士(医学)application/pdfBackground/Aim: 5-Aminolevulinic acid(5-ALA) is a natural amino acid and a precursor of protoporphyrin IX (PpIX). Following light irradiation, the PpIX generates reactive oxygen species (ROS) in the presence of oxygen. Increased ROS levels can cause apoptotic cell death and necrosis of targeted cancer cells. This study examined whether photodynamic therapy using 5ALA (5-ALA PDT) could be used as a potential adjuvant therapy for bone and soft tissue sarcomas.
Materials and Methods: The human osteosarcoma (143B), mouse osteosarcoma (LM8), human fibrosarcoma cell (HTl080) cell lines were used. In vitro, cultured cells were exposed to 5-ALA at various concentrations followed by strobe scope light irradiation for 10 min as 5-ALA PDT. Cell viability was then measured. In vivo, each tumour cell line was inoculated subcutaneously into the backs of mice. In the 5-ALA PDT group, 5-ALA (250m g/kg) was administered intraperitoneally followed by light irradiation. Change in tumour volume by 5-ALA PDT were primarily evaluated.
Results: In vitro, treatment of sarcoma cells with 100 and 200μg/ml 5-ALA PDT significantly inhibited cell proliferation at 24 and 48h, compared with the group treated with O and 10μg/ml 5-ALA PDT. In vivo, in all cell lines, a significant inhibition of the tumour volume was observed in the 5-ALA-PDT group as compared to that in control, strobe scope light, and 5-ALA groups.
Conclusion: 5-ALA PDT effectively inhibited proliferation of bone and soft tissue sarcoma cell lines. Further in vivo research using other subtypes of bone and soft tissue sarcoma is warranted to confirm the applicability in clinical setting.本文/Department of Orthopedic Surgery, Mie University Graduate School of Medicine, Tsu City, Japan32pdoctoral thesi
Correlation Between the Social Network Structure and Well-Being of Health Care Workers in Intensive Care Units: Prospective Observational Study
Get PDF三重大学博士(医学)application/pdfBackground: Effective communication strategies are becoming increasingly important in intensive care units (ICUs) where patients at high risk are treated. Distributed leadership promotes effective communication among health care professionals (HCPs). Moreover, beyond facilitating patient care, it may improve well-being among HCPs by fostering teamwork. However, the impact of distributed leadership on the communication structure and well-being of HCPs remains unclear.
Objective: We performed a social network analysis (SNA) to assess the characteristics of each HCP in the network, identify the number of HCP connections, analyze 4 centralities that can measure an HCP’s importance, and evaluate the impact of distributed leadership structure on the well-being and communication structure of the medical staff.
Methods: Wearable sensors were used to obtain face-to-face interaction data from the ICU medical staff at Mie University Hospital, Japan. Participants wore a badge on the front of their clothing during working hours to measure the total frequency of face-to-face interactions. We collected data about the well-being of medical staff using the Center for Epidemiological Studies–Depression (CES-D) questionnaire and measured 4 centralities using SNA analysis. A CES-D questionnaire was administered during the study to measure the well-being of the HCPs.
Results: Overall, 247 ICU workers participated in this clinical study for 4 weeks yearly in February 2016, 2017, and 2018. The distributed leadership structure was established within the ICU in 2017 and 2018. We compared these results with those of the traditional leadership structure used in 2016. Most face-to-face interactions in the ICU were among nurses or between nurses and other professionals. In 2016, overall, 10 nurses could perform leadership tasks, which significantly increased to 24 in 2017
(P=.046) and 20 in 2018 (P=.046). Considering the increased number of nurses who could perform leadership duties and the collaboration created within the organization, SNA in 2018 showed that the betweenness (P=.001), degree (P<.001), and closeness (P<.001) centralities significantly increased compared with those in 2016. However, the eigenvector centrality significantly decreased in 2018 compared with that in 2016 (P=.01). The CES-D scores in 2018 also significantly decreased compared with those in 2016 (P=.01). The betweenness (r=0.269; P=.02), degree (r=0.262; P=.03), and eigenvector (r=0.261; P=.03) centralities and CES-D scores were positively correlated in 2016, whereas the closeness centrality and CES-D scores were negatively correlated (r=−0.318; P=.01). In 2018, the degree (r=−0.280; P=.01) and eigenvector (r=−0.284; P=.01) centralities were negatively correlated with CES-D scores.
Conclusions: Face-to-face interactions of HCPs in the ICU were measured using wearable sensors, and nurses were found to be centrally located. However, the introduction of distributed leadership created collaboration and informal leadership in the organization, altering the social network structure of HCPs and increasing organizational well-being.本文/Department of Molecular Pathobiology and Cell Adhesion Biology, Mie University Graduate School of Medicine, Tsu, Japan15pdoctoral thesi