This Ph.D. dissertation focuses on a comprehensive study of seismic waveform similarity aiming at two themes: (1) reliable identification of repeating earthquakes (repeaters) and (2) investigation of the detailed source process of induced seismicity through the three-dimensional spatiotemporal evolution of mainly neighbouring earthquakes. Theme 1: Reliable identification of repeaters. Repeaters, occurring repeatedly on the same fault patch with nearly identical waveforms, are usually identified with the match-filtering (MF) method which essentially measures the degree of waveform similarity between an earthquake pair through the corresponding cross-correlation coefficient (CC). However, the performance of the MF method can be severely affected by the length of the cross‐correlation window, the frequency band of the applied digital filter, and the presence of a large‐amplitude wave train. To optimize the performance of MF, I first examine the effects of different operational parameters and determine generic rules for selecting the window length and the optimal frequency passband. To minimize the impact of a large‐amplitude wave train, I then develop a new method, named the match-filtering with multisegment cross-correlation (MFMC) method. By equally incorporating the contributions from various segments of the waveforms, the new method is much more effective in capturing the minor waveform discrepancy between an event pair due to location difference and hence is more reliable in detecting potential repeaters and discriminating non-repeaters with large inter-event separation. With both synthetic and borehole array waveform data, I further reveal that waveform similarity is controlled by not only the inter-event separation but also many other factors, including station azimuth, epicentral distance, velocity structure, etc. Therefore, in contrast to the traditional view, the results indicate that waveform similarity alone is insufficient to unambiguously identify true repeaters. For reliable repeater identification, we should rely on a physics-based approach considering both the overlapped source area and magnitude difference. Specifically, I define an event pair to be true repeaters if their inter-event separation is smaller than the rupture radius of the larger event and their magnitude difference is no more than 1. For the precise estimation of inter-event distance in cases of limited data, I develop the differential traveltime double-difference (DTDD) method which relies on the relative S-P differential traveltime. The findings of this study imply that previously identified repeaters and their interpretations/hypotheses potentially can be biased and hence may need a systematic reexamination. Theme 2: Investigation of the detailed source process of induced seismicity. Earthquakes induced by hydraulic fracturing (HF), especially those with large magnitudes, are often observed to have occurred near/after well completion. The delayed triggering of induced seismicity with respect to injection commencement poses serious challenges for risk mitigation and hazard assessment. By performing waveform cross-correlation and hierarchical clustering analysis, I reveal a high-resolution three-dimensional source migration process with mainshock delayed triggering that is probably controlled by local hydrogeological conditions. The results suggest that poroelastic effects might contribute to induced seismicity but are likely insufficient to activate a non-critically stressed fault of sufficient size. My analysis shows that the rapid pore-pressure build-up from HF can be very localized and capable of producing large, felt earthquakes on non-critically stressed fault segments. I further infer that the number of critically stressed, large intraplate faults should be very limited, and that reactivation of such faults may require sufficient pore-pressure accumulation. The findings of this study may also explain why so few fluid injections are seismogenic. / Graduate

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抽取出音樂當中的近似重複樣式來做音樂檢索可以減少要比對的資料量，但是使用者若使用沒有重複的旋律來查詢便會有找不到歌曲的情況。另一方面，將音樂分段成phrase可以減少樹狀索引結構的空間，亦可減少查詢處理時間，但是使用者的查詢若是跨越phrase的，也將影響查詢結果。 在本論文中，我們比較了以近似重複樣式與phrase兩種不同的音樂特徵用來做音樂檢索的效果以及效率。根據實驗顯示，使用者的查詢是重複旋律的機會大於單一phrase，所以用近似重複樣式作為音樂查詢比對資料效果是比phrase好的。而在1-D List索引結構下，近似重複樣式的效率也優於phrase。除此之外，本論文也提出了一個新的近似重複樣式抽取方法，實驗證明我們的方法是有效的。 / Extract the approximate repeating pattern from music data will decrease the volumes of music data that need to be tested when music retrieve. If the user’s query is not a repeating melody, it can’t retrieve the music that the user wants correctly. In addition, segment the music by phrase will decrease the space that tree-like index structure need, and also decrease the retrieval processing time. If the user’s query is not a single phrase, it will influence the effectiveness of retrieval. In this thesis, we compare the effectiveness and efficiency of music retrieval methods with two different music features (approximate repeating pattern and phrase). According to experiment results, the probability that user’s query is repeating melody is more than the probability that user’s query is a single phrase. Therefore, we are of the opinion that the effectiveness that use approximate repeating pattern to process retrieval is more prominent than the effectiveness that phrase to process retrieval. Furthermore, the efficiency that use approximate repeating pattern to process retrieval is more outstanding than use phrase under 1-D List index structure. Besides, a new approximate repeating pattern extraction method is proposed. Experiment results show that our approximate repeating pattern extraction method can work correctly.

This thesis deals with the design and implementation of system for recording and repeating of events for audio systems. The introductory part is devoted to the study of sound systems, their user interfaces and communication protocols that are used by audio systems. Hereafter the description of essential features of Mac OS X, as well as the characteristic of its user interface and principles of development on this platform, are given. The core of the thesis consists of the design of system for recording and repeating of events and the concept of events which specifies the reprezentation of events in the system and their subsequent processing. In~the end of the thesis is presented the implementation of the designed system for Mac OS X with respect to possible extensions of the system and its features.

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Efterfrågan på matematiskt kunnande ökar i samhället. Algebraiskt kunnande gynnar lärandet inom andra delar av matematiken. Algebra innebär att upptäcka matematiska strukturer och kunna generalisera dessa. Mönsterundervisning ses som en säker väg till algebra. Samtidigt visar forskning kopplat till upprepade mönster att de flesta elever inte kan generalisera upprepade mönster innan de börjar skolan, och menar att det finns ett behov av en strukturerad undervisning kopplad till upprepade mönster. Stora delar av matematikundervisningen i Sverige utgår från matematikböcker. Därför syftar denna studie till att beskriva de upprepade mönster elever kan möta genom ett läromedel och därigenom dra slutsatser om vad elever får för möjlighet att lära om algebra genom dessa. Följande frågor besvaras: Vilken variation och omfattning av mönster och mönsteruppgifter får eleverna möta i matematikböckerna kopplade till upprepade mönster? och Vilken ytterligare vägledning ger lärarhandledningen för att elever ska utveckla förståelse av upprepade mönster?  Den teoretiska ansats studien utgår från är tidigare forskning om undervisning i växande mönster. Studien är avgränsad till matematikböcker för år 1–3. Urvalet av material innefattar 6 matematikböcker i serien Koll på matematik samt tillhörande lärarhandledningsböcker. Samtliga böcker har analyserats för att finna upprepade mönster. Dessa mönster sorterades efter kategorierna riktning, uttrycksformer, mönsterstruktur och uppgifts typ. Därefter genomsöktes lärarhandledningen efter förslag på undervisning kopplade till de upprepade mönstren som fanns i elevböckerna. Resultatet visar att det främst finns en variation på uttrycksformer och mönsterstrukturer i matematikböckerna och en mindre variation på riktning. Uppgiftstyperna varierar i viss mån. Vidare visar resultatet att lärarhandledningen tillförde flera kommunikativa aspekter kopplade till mönster och även fler metoder vilket inte framgick i elevböckerna. / The request for mathematical knowledge is increasing in today's society. Algebraic knowledge favour further learning in other areas of mathematics. Algebra involves finding mathematical structures and being able to generalize these. Teaching about patterns are described as a safe path to learn algebra. At the same time, research on repeating patterns proves that most children cannot make generalization about repeating patterns before they enter school, therefore structured teaching connected to repeated patterns is needed. Teaching in Sweden is mostly based on mathematics schoolbooks. Therefore, the aim for this study is to describe the repeated patterns students can encounter through teaching material and thereby draw conclusions about which opportunities students have to learn about algebra through these. The questions answered in this study are: Which variation and amount of patterns and pattern tasks do the pupils get exposed to in the mathematics books connected to repeating patterns? and What does the additional teacher guides provide with for pupils understanding of repeating patterns? The study is limited to mathematics schoolbooks for schoolyear 1-3.  The theoretical approach in this study is based on previous research on teaching methods connected to repeated patterns. The selection of mathematics books includes 6 mathematics books from the teaching materials Koll på matematik. All pages have been scanned to find repeated patterns. The repeating patterns were categorized by the pattern's direction, different expression of pattern, structure, and task type. Afterwards, the teacher's manual was searched for teaching suggestions linked to the repeating patterns that were found in the student books. The result indicates that the variation is primally connected to different expression of pattern and pattern’s structure in the mathematics books and that there are minimal variation of the patterns direction. The task types vary to a certain extent. Furthermore, the result indicate that the teacher's guide contributes with several communicative aspects connected to repeating patterns and more methods that were not apparent in the student books.

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現在有許多對於眼動軌跡與人在認知方面的研究，包括理解狀態以及感興趣的程度；其中，閱讀文章時的眼動軌跡是最常被討論及研究的題材。而本研究的目的就是希望探討讀者在閱讀時的眼動軌跡，與其感興趣程度之間是否存在關係。 / 本研究的特色在於，我們不用一般分析眼動時關心每個AOI（area of interest）上的眼動資料，而是希望將眼動資料以序列的方式分析，並且運用資料探勘的方法，找出眼動序列中區分感興趣程度的眼動軌跡特徵的片段。 / 透過對於眼動軌跡的分析，我們希望研究的結果，在未來可以運用在資訊檢索的領域上，成為一種有效的「隱含式回饋（implicit feedback）」的方式，以改善現有資訊檢索效能。 / Much research has been performed on the relationship between eye movements and human cognition, including comprehension and interesting degree. The purpose of our research is to find out if there are relationships between eye movements of reading and interesting degree. / Instead of analyzing the eye movements on each area of interest, the characteristic of our research is to transform eye movements to sequence data, and to determine the eye movement patterns which discriminate whether user is interesting or not by using the method of data mining. / Through the analysis of the eye movements, our research result can be used as one way of implicit feedback of information retrieval to improve the effectiveness of the search engine.

華語流行歌詞一直是語言、文學、音樂或是文化研究等相關科系赤手可熱的研究題目，內容包含作詞者、修辭分析、風格、用韻及語言表達等，然由於歌詞數量龐大，難以全部以人工分析。 近年來，資訊科技日新月異不斷地進步，隨著Big Data議題受到注目，Data Mining在近年來相當熱門，然而針對華語流行歌詞的巨量資料探勘與分析研究並不多。因此，本論文研究以程式來自動化分析歌詞的樣式與特性，包括詞彙頻率、詞彙相鄰關係分析、歌名分析、使用語系分析、舊曲新唱、歌詞風格自動分類、用韻及修辭等，而研究資料係透過網路擷取知名網站內容，包含魔鏡歌詞網 (Mojim.com)、臺北之音HitFM聯播網 (www.hitoradio.com) 及教育部重編國語辭典，透過分析規則及以Non-Trivial Repeating Pattern等方法，來完成分析及系統實作。 透過華語流行歌詞的大量分析，探勘及了解各種歌詞的風格與特性，將可了解各種歌詞、作詞者的風格與特色，進而應用在歌詞資料的管理與查詢。 此外，本研究將八萬多首歌詞的各種分析資料設置成網站，提供予學術研究使用，希冀此研究資料能使華語流行歌詞相關研究研究，進行更深入地探討。 / Chinese popular music lyrics has been a popular topic for researchers who major in languages and literature, music or culture. Related studies include of lyricists, rhetoric methods, styles, rhyme and language expression. However, all these studies were performed by manual analysis. It is difficult to analyze large amount of lyrics manually. With advances in computer technology, big data and data mining techniques have been widely used in different kinds of data. However, to the best of our knowledge, none have been done on pattern mining from big data of lyrics of Chinese popular music. Therefore, the objective of this thesis is to discover patterns from tremendous lyrics data based on data mining techniques. We use data downloaded from www.mojim.com, http://dict.revised.moe.edu.tw/cbdic/ and http://www.hitoradio.com (Hit FM). Data mining methods are employed to find lyrics’ patterns and features, including frequent words, word adjacency, analysis of hit songs' names, lyrics’ language studies, cover song research, automatic style prediction, rhyme and rhetoric patterns. With the analysis of tremendous lyrics and data, the developed approaches of this thesis will be helpful for discovering distinguishing styles of lyrics and lyricists.

Made available in DSpace on 2016-01-26T12:51:36Z (GMT). No. of bitstreams: 1 elyseusicoli_tese.pdf: 2441826 bytes, checksum: 674fd5e0ef6362d6b45b1ebf11e5cfd9 (MD5) Previous issue date: 2011-02-18 / The Cumulative Trauma Disorders (CTD) hás been common in various professions that require repeating the same movement several times thoughout the day. The professionals more affected by this problem, are: workers in production lines, cash drawers operators, homemakers, dentists, and others. Also called by work Related Musculoskeletal Disorders (WRMD) or Musculoskeletal Disorders Related to Working (MDRW), these lesions are caused by the repetitive or forced use of the muscles groups or inadequate posture. The most common symptoms are ache, tingling feelings, mysterious numbness, muscle fatigue and peripheral nerves. Several factors have been making that the personal and Professional life is much affected: intense and chronic sumptoms, lack of prevention and rehabilitation policies by the companies, late diagnosis and treatment, among other. Objective: The purpose of this work was to asses the knowledge degree of the professionals ins São José do Rio Preto among the occupational diseases and improve education in the graduation about these occupational illnesses so that students in future can prevent the same problem. Methods: The learners participating in this project went to the dental clinics of São José do Rio Preto, and explained the objectives as well as the Term of Free and Informed Consent. They made the interview with the professional using a questionnaire, avoiding the interference or reading of the data by others. The listing of clinics was obtained through the Regional Council of Dentistry Station of São José do Rio Preto. The questionnaire addressed questions since the knowledge of the diseases through what the professionals do to avoid them. The questionnaire also had the objective of selecting samples. Interesting results were obtained through research, such that 42.85% of participants already had some joint pain manifestation, which may be signs of repetitive strain injury and that nearly 99% of workers had some basic ergonomics in your graduation, but only 63.63% implemented in your office. The project was submitted by the Ethical Committee, and the volunteers that agreed in participating on the study signed a free and informed consent, as resolution 196/96 of the National Council of Ethics and the search of the Health Ministry. / As L.E.R. (Lesões por Esforços Repetitivos) têm se mostrado comuns em diversas profissões que exigem a repetição do mesmo movimento diversas vezes ao longo do dia. Os profissionais mais afetados por esse mal são: operários em linhas de produção, operadores de caixas, donas de casa, Cirurgiões-Dentistas, entre outros. Também chamadas de DORT (Doenças Osteomusculares Relacionadas ao Trabalho) ou AMERT (Afecções Musculo-Esqueléticas Relacionadas ao Trabalho), estas lesões são causadas pelo uso repetitivo ou forçado de grupos musculares, ou postura inadequada. Os sintomas mais comuns são dores, sensação de formigamento, dormência, fadiga muscular, perda da força muscular em conseqüência de alteraçãoes nos tendões, musculaturas e nervos periféricos. Vários fatores acabam fazendo com que a vida pessoal e profissional seja muito afetada: sintomas intensos e crônicos, falta de uma política de prevenção e reabilitação por parte das empresas, diagnóstico tardio e tratamento inadequado, entre outros. Objetivo: O objetivo deste trabalho foi avaliar o grau de conhecimento dos Cirurgiões Dentistas de São José do Rio Preto acerca das doenças ocupacionais e melhorar o ensino na Graduação sobre enfermidades, de forma que os alunos futuramente previnam as mesmas. Casuística e Metodos: Os pesquisadores participantes do projeto foram aos consultórios odontológicos de São José do Rio Preto, e explicaram os objetivos da pesquisa, bem como o Termo de Consentimento Livre e Esclarecido. Fizeram a entrevista com o Cirurgião Dentista, através de um questionário, evitando assim que houvesse interferências ou leitura dos dados coletados por outras pessoas. A listagem dos consultórios foi obtida através do Conselho Regional de Odontologia Delegacia de São José do Rio Preto. O questionário abordou questões desde o conhecimento das enfermidades até o que o profissional faz para evitá-las. O questionário também teve por objetivo selecionar a amostra, identificando os dados necessários para a pesquisa. Resultados interessantes foram obtidos através da pesquisa, 42,85% dos participantes já tiveram alguma manifestação dolorosa nas articulações, o que pode ser indícios de lesão por esforço repetitivo e que quase 99% desses profissionais tiveram noções básicas de ergonomia na sua graduação, mas apenas 63,63% aplicaram em seu consultório. O projeto foi submetido ao Comitê de Ética, e os voluntários que concordaram em participar do estudo assinaram um termo de consentimento livre e esclarecido, conforme a resolução 196/96 do Conselho Nacional em Ética e Pesquisa do Ministério da Saúde.