8,398 research outputs found

    The TREC-2002 video track report

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    TREC-2002 saw the second running of the Video Track, the goal of which was to promote progress in content-based retrieval from digital video via open, metrics-based evaluation. The track used 73.3 hours of publicly available digital video (in MPEG-1/VCD format) downloaded by the participants directly from the Internet Archive (Prelinger Archives) (internetarchive, 2002) and some from the Open Video Project (Marchionini, 2001). The material comprised advertising, educational, industrial, and amateur films produced between the 1930's and the 1970's by corporations, nonprofit organizations, trade associations, community and interest groups, educational institutions, and individuals. 17 teams representing 5 companies and 12 universities - 4 from Asia, 9 from Europe, and 4 from the US - participated in one or more of three tasks in the 2001 video track: shot boundary determination, feature extraction, and search (manual or interactive). Results were scored by NIST using manually created truth data for shot boundary determination and manual assessment of feature extraction and search results. This paper is an introduction to, and an overview of, the track framework - the tasks, data, and measures - the approaches taken by the participating groups, the results, and issues regrading the evaluation. For detailed information about the approaches and results, the reader should see the various site reports in the final workshop proceedings

    Trialing project-based learning in a new EAP ESP course: A collaborative reflective practice of three college English teachers

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    Currently in many Chinese universities, the traditional College English course is facing the risk of being ‘marginalized’, replaced or even removed, and many hours previously allocated to the course are now being taken by EAP or ESP. At X University in northern China, a curriculum reform as such is taking place, as a result of which a new course has been created called ‘xue ke’ English. Despite the fact that ‘xue ke’ means subject literally, the course designer has made it clear that subject content is not the target, nor is the course the same as EAP or ESP. This curriculum initiative, while possibly having been justified with a rationale of some kind (e.g. to meet with changing social and/or academic needs of students and/or institutions), this is posing a great challenge for, as well as considerable pressure on, a number of College English teachers who have taught this single course for almost their entire teaching career. In such a context, three teachers formed a peer support group in Semester One this year, to work collaboratively co-tackling the challenge, and they chose Project-Based Learning (PBL) for the new course. This presentation will report on the implementation of this project, including the overall designing, operational procedure, and the teachers’ reflections. Based on discussion, pre-agreement was reached on the purpose and manner of collaboration as offering peer support for more effective teaching and learning and fulfilling and pleasant professional development. A WeChat group was set up as the chief platform for messaging, idea-sharing, and resource-exchanging. Physical meetings were supplementary, with sound agenda but flexible time, and venues. Mosoteach cloud class (lan mo yun ban ke) was established as a tool for virtual learning, employed both in and after class. Discussions were held at the beginning of the semester which determined only brief outlines for PBL implementation and allowed space for everyone to autonomously explore in their own way. Constant further discussions followed, which generated a great deal of opportunities for peer learning and lesson plan modifications. A reflective journal, in a greater or lesser detailed manner, was also kept by each teacher to record the journey of the collaboration. At the end of the semester, it was commonly recognized that, although challenges existed, the collaboration was overall a success and they were all willing to continue with it and endeavor to refine it to be a more professional and productive approach

    Digital Image Access & Retrieval

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    The 33th Annual Clinic on Library Applications of Data Processing, held at the University of Illinois at Urbana-Champaign in March of 1996, addressed the theme of "Digital Image Access & Retrieval." The papers from this conference cover a wide range of topics concerning digital imaging technology for visual resource collections. Papers covered three general areas: (1) systems, planning, and implementation; (2) automatic and semi-automatic indexing; and (3) preservation with the bulk of the conference focusing on indexing and retrieval.published or submitted for publicatio

    Coherence in simultaneous interpreting : an idealized cognitive model perspective

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    This study aims to explore the two questions: 1) Does the interpreter’s relevant bodily experience help her to achieve coherence in the source text (ST) and the target text (TT)? 2) How does the interpreter’s mental effort expended in achieving coherence reflect the textual structure of the ST? The findings of this study contribute to the general understanding of how coherence is achieved in simultaneous interpreting (SI). The theoretical framework is based on the concept of the Idealized Cognitive Model (ICM), which emphasizes the role of bodily experience in organizing and understanding knowledge. A bodily experience based experiment was conducted with two contrastive groups: experimental group and control group, involving thirty subjects from a China-based university, who had Chinese as their first language and English as their second language. The data collected was recordings of English to Chinese simultaneous interpretations. Coherence in SI was analyzed on the basis of both quantitative and qualitative approaches by virtue of coherence clues. The analysis shows that the interpreter’s bodily experience helped her to achieve coherence and distribute her mental effort in both the ST and TT. As the term ICM suggests, the cognitive model is idealized on the grounds that the ICM does not fit into the real specifics of a textual structure perfectly or all the time. The ICM is an open-ended model in terms of the analysis of understanding abstract concepts especially in this SI discourse and needs more research. This study can contribute to SI research and training, suggesting that specialization is a trend in interpreting education

    Anchorage: Visual Analysis of Satisfaction in Customer Service Videos via Anchor Events

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    Delivering customer services through video communications has brought new opportunities to analyze customer satisfaction for quality management. However, due to the lack of reliable self-reported responses, service providers are troubled by the inadequate estimation of customer services and the tedious investigation into multimodal video recordings. We introduce Anchorage, a visual analytics system to evaluate customer satisfaction by summarizing multimodal behavioral features in customer service videos and revealing abnormal operations in the service process. We leverage the semantically meaningful operations to introduce structured event understanding into videos which help service providers quickly navigate to events of their interest. Anchorage supports a comprehensive evaluation of customer satisfaction from the service and operation levels and efficient analysis of customer behavioral dynamics via multifaceted visualization views. We extensively evaluate Anchorage through a case study and a carefully-designed user study. The results demonstrate its effectiveness and usability in assessing customer satisfaction using customer service videos. We found that introducing event contexts in assessing customer satisfaction can enhance its performance without compromising annotation precision. Our approach can be adapted in situations where unlabelled and unstructured videos are collected along with sequential records.Comment: 13 pages. A preprint version of a publication at IEEE Transactions on Visualization and Computer Graphics (TVCG), 202

    English for science and technology: a computer corpus-based analysis of English science and technology texts for application in higher education

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    Doutoramento em LinguĂ­sticaThis thesis presents two analyses: first the analysis of computer corpora from undergraduate textbooks to isolate the (American) English language of science and technology they present; secondly an analysis of the English language competence of undergraduates starting their university studies in science and technology. These two analyses are contrasted in order to apply the results to the design of an English language syllabus for first year undergraduates. A frequency and range word list was produced using a large baseline corpus to contrast with the main corpora taken from physics and chemistry textbooks on the students’ bibliographies as a resource for syllabus design. Secondly, four corpora, two main and two sub-corpora produced from the physics and chemistry textbooks on the bibliographies of the undergraduates were analysed using Biber’s (1988) algorithms and functions for variation across speech and writing. The student intake was tested over five years and the results of those tests analysed. It was found that there was considerable variation in the students’ levels of language competence. However, there was a close correlation between the students’ competence and the number of years they had studied English in secondary school. Nevertheless there were students with extremely advanced competence and some with little or no competence in English amongst the undergraduates. Comprehension of scientific texts was generally found to correlate with more advanced competence and more years of study. The frequency and range word list showed the contexts which are appropriate for materials to be used with these students and demonstrated variation from many of the accepted views of the language of science and technology. The computer corpora analyses varied from Biber’s academic prose category. The sub-corpora demonstrated greatest variation which is believed to be as a result of specific cultural and/or literary material in the analogies used in the textbooks. The heavy load of cultural background knowledge which the reader would need in order to work with the textbooks adequately was also found in the exercises the students were supposed to use for practice on the topic presented in the chapter. This and the interpretation of visuals in the textbooks were considered to be two principle factors that needed to be emphasised in a syllabus for first year undergraduates. However, given the time constraints on language teaching for science and technology students, a methodology which would lead to greater student autonomy is suggested using computer corpus-based studies - data- viii driven learning and computer-supported distance communications and learning.Esta tese apresenta duas anĂĄlises: primeiro uma anĂĄlise de corpora computadorizados, criados a partir de livros dos estudantes de licenciaturas, para isolar a linguagem Inglesa (Americana) das ciĂȘncias e tecnologias que apresentam; segundo uma anĂĄlise dos conhecimentos da lĂ­ngua Inglesa que estes alunos apresentam ao iniciar os seus estudos universitĂĄrios em ciĂȘncias e tecnologias. Estas duas anĂĄlises sĂŁo postas em contraste para se aplicar os resultados obtidos ao desenho de um programa de lĂ­ngua Inglesa para os alunos do primeiro ano. Foi criada uma lista com a abrangĂȘncia e a frequĂȘncia das palavras de um corpus de larga base, para ser contrastada com os principais corpora compilados dos livros de fĂ­sica e quĂ­mica constantes das bibliografias dos estudantes, como uma fonte para o desenho de programas. Seguidamente, quatro corpora, dois principais e dois subordinados, produzidos a partir dos livros de fĂ­sica e quĂ­mica referidos nas bibliografias dos estudantes, foram analisados usando os algoritmos e funçÔes de Biber (1988) para variaçÔes entre linguagem falada e escrita. Durante cinco anos, Ă  entrada para a Universidade, os estudantes foram submetidos a testes e os resultados analisados. Constatou-se que havia variaçÔes considerĂĄveis no nĂ­vel de conhecimentos da lĂ­ngua por parte dos estudantes. Contudo, havia uma correlação apertada entre as competĂȘncias dos estudantes e o nĂșmero de anos que tinham estudado InglĂȘs nas escolas secundĂĄrias. Todavia, havia estudantes com competĂȘncias extremamente avançadas e outros com competĂȘncias reduzidas, ou quase nulas, em InglĂȘs. A compreensĂŁo de textos cientĂ­ficos estava geralmente correlacionada com os nĂ­veis mais avançados de competĂȘncias e maior nĂșmero de anos de estudo. A lista com a abrangĂȘncia e a frequĂȘncia das palavras mostrou os contextos apropriados dos materiais a utilizar com estes estudantes e demonstrou que havia diferenças em relação a muitos dos pontos de vista aceites em relação Ă  linguagem das ciĂȘncias e tecnologias. A anĂĄlise dos corpora computadorizados varia das categorias da linguagem da prosa acadĂ©mica de Biber. Os corpora subordinados mostram uma maior variação, que se julga ser devida a materiais especĂ­ficos, culturais e/ou literĂĄrio, usados nas analogias dos livros de estudo. O grande peso dos conhecimentos de fundo de que os estudantes necessitam para trabalhar adequadamente com os livros de estudo foi, tambĂ©m, encontrado nos exercĂ­cios que necessitam de fazer para praticarem o que estĂĄ referido nos tĂłpicos dos capĂ­tulos. Isto, juntamente com a interpretação das imagens dos livros, foram considerados os dois principais factores a precisarem de ser relevados no programa para o primeiro ano dos estudantes. Contudo, atendendo Ă s restriçÔes de tempo x para o ensino de lĂ­nguas a estudante de ciĂȘncias e tecnologias, a metodologia que conduziria a maior autonomia dos alunos serĂĄ baseada na utilização de corpora computadorizados (data-driven learning) e aprendizagem Ă  distĂąncia assistida por computador
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