1,720,953 research outputs found
Gait Recognition and Walking Exercise Intensity Estimation System
No full text心血管疾病患者常常需要經由醫師來確定患者的安全可運動強度與設計運動處方；肥胖者需要透過自主管理來控制體重。對於具有以上需求的使用者，發展一套可長時間監控的個人化運動強度紀錄系統，有其存在之必要性。
本文提出一個可行的個人化步態辨識與行走運動強度估測系統。在步態辨識部分，本文使用αβ濾波器得到精確的運動姿態，並將該姿態經過經驗模態分解(Empirical Mode Decomposition，EMD)濾除雜訊後提取傅利葉能量譜，進行線性鑑別式分析(Linear Discriminant Analysis，LDA)訓練與辨識。當辨識為走路狀態時，即進行行走運動強度估測。本文同時探討走路時物理慣性做功與運動強度的相關性。使用二次逼近與經驗模態分解(Empirical Mode Decomposition，EMD)之殘餘函數濾除加速規本身的基線飄移對於積分的嚴重影響，得到準確的瞬時速度，進而提升運動強度計算的準確性。
本文針對5男5女共10位受試者，測試四種步態(上樓、下樓、走路、跑步)之個人步態辨識在30%訓練樣本時，剩餘70%作驗證之平均準確率可達90%以上。每位受試者並進行10次不同行走速度的測試，在步數計算之平均準確率可達95%，並改善Y. Kurihara計算運動強度的方式，其迴歸方程式之相關性可由原本的0.55提升至0.81，證明本研究所採用之方法確實可提高運動強度估測之準確性。最後實作於智慧型手機，並於PC端開發使用者介面，協助了解運動中的姿態變化與演算法驗證，日後可以進一步達到遠端監控、雲端儲存、自主管理等目的。Cardiovascular disease patients need suggestions from doctors for an acceptable level of exercise intensity and exercise prescription. And over-weight patients control their weight by self-management. Developing a monitoring system which can record personalized exercise intensity is necessary for above patients.
This thesis proposes a feasible system for personalized gait recognition and walking exercise intensity estimation. On analyzing gait recognition, this thesis uses α-β filters to obtain better athletic attitudes, and further uses Empirical Mode Decomposition (EMD) to filter noise of athletic attitude to acquire Fourier Transform energy spectrum. Thus, the Linear Discriminant Analysis (LDA) can apply to this energy spectrum for training and recognition. When the motion is recognized as walking, the walking exercise intensity is estimated. This thesis also discusses the correlation between inertia work and exercise intensity by using residual function of Empirical Mode Decomposition (EMD) and quadratic approximation to filter the baseline shift of acceleration sensor to reduce the serious integral effect. And further we are can derive better exercise intensity and instantaneous speed.
This thesis uses measured 10 subjects including 5 males and 5 females to recognize four types of gait from upstairs, downstairs, walking, and running. For gait recognition, 30% of collected raw data is used for training samples, and recognition rate of verifying the 70% data can reach more than 90%. After applying our method to ten different walking speeds from each subject, we found that step calculation shows 95% accuracy, and Y.Kurihara’s exercise intensity method can be enhanced, and the regression equation correlation can be increased from 0.55 to 0.81. These results prove our method can improve exercise intensity estimation. The proposed method has been implemented on smart phones and graphic user interface on personal computers to help understanding the change of athletic stance and to verify the proposed algorithm for further application on remote monitoring, cloud computing, and self-management
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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