In this paper we analyse the way students tag recorded lectures. We compare their tagging strategy and the tags that they create with tagging done by an expert. We look at the quality of the tags students add, and we introduce a method of measuring how similar the tags are, using vector space modelling and cosine similarity. We show that the quality of tagging by students is high enough to be useful. We also show that there is no generic vocabulary gap between the expert and the students. Our study shows no statistically significant correlation between the tag similarity and the indicated interest in the course, the perceived importance of the course, the number of lectures attended, the indicated difficulty of the course, the number of recorded lectures viewed, the indicated ease of finding the needed parts of a recorded lecture, or the number of tags used by the student.
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Online recordings of lectures provide students with anytime-anyplace access to lectures. Research shows that students prefer courses accompanied by online recordings and an increasing number of universities provide recorded lectures. This paper presents the results of a study into the use of recorded lectures at two universities in the Netherlands. The goal of the study is to gain a better understanding of the way that this group of students use recorded lectures. This understanding will enable the creation of usage scenarios that need to be supported. Our results show that students use recorded lectures as a replacement for missed lectures and for study tasks, like preparing for an exam. A large proportion of the students report that they watch 75100% of a recorded lecture when the view one. The fact that students did not mention the quality of the actual lectures appears not to influence the use of the recorded lectures. Recorded lectures for courses that only use the blackboard are viewed less often. There are also interesting differences in the use of recorded lectures of the different groups of students at the two universities. To increase the credibility and validity of the results, we need a more direct way to measure the use of recorded lectures by students. Methodological triangulation using the log data for the recorded lectures can provide this.
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This study analyses the interactions of students with the recorded lectures. We report on an analysis of students' use of recorded lectures at two Universities in the Netherlands. The data logged by the lecture capture system (LCS) is used and combined with collected survey data. We describe the process of data pre-processing and analysis of the resulting full dataset and then focus on the usage for the course with the most learner sessions. We found discrepancies as well as similarities between students' verbal reports and actual usage as logged by the recorded lecture servers. The analysis shows that recorded lectures are viewed to prepare for exams and assignments. The data suggests that students who do this have a significantly higher chance of passing the exams. Given the discrepancies between verbal reports and actual usage, research should no longer rely on verbal reports alone.
Tango is among the most widespread world music genres nowadays. However, only partial information about the elements and techniques of composing, arranging and performing tango has been documented and made available so far. This research project aims at investigating tango’s main aspects in the oeuvre of relevant tango musicians, promoting its creative practice and expanding its artistic community. By making the implicit knowledge in scores and recordings explicit and ready for creative use by the greater artistic community, tango can be preserved, on one side; and musicians can experiment and reach new artistic horizons, securing its continuation and development as vivid, contemporary music, on the other. The project has two research questions: 1. What are the main features and techniques of tango music composition, arrangement and performance? 2. How can musicians nowadays integrate these features and techniques into their practice to deepen their understanding and enhance their artistic creations and performances? This research uses a mixed method design, including the analysis of scores and recordings, literature review, interviews, observational studies and experimentation. It expands the artistic community on the topic and bridges two top-notch institutions devoted to tango learning: Codarts and UNSAM (Argentina). The research also endeavours improvements in the Codarts curriculum as it complements and expands its educational programme by providing students with research tools to enhance their creative practice. Theoretical and artistic outcomes will be documented and disseminated in concerts, concert-lectures, papers, articles and a tailor-made website containing compositions, arrangements, videos, text, musical examples and annotated scores, so as to record: a) the musical materials and techniques found in the analysed scores and recordings, together with their applications in practice and performance; b) the artistic processes, reflections and production of the participants; c) information on how to create, arrange and perform tangos.
A huge amount of data are being generated, collected, analysed and distributed in a fast pace in our daily life. This data growth requires efficient techniques for analysing and processing high volumes of data, for which preserving privacy effectively is a crucial challenge and even a key necessity, considering the recently coming into effect privacy laws (e.g., the EU General Data Protection Regulation-GDPR). Companies and organisations in their real-world applications need scalable and usable privacy preserving techniques to support them in protecting personal data. This research focuses on efficient and usable privacy preserving techniques in data processing. The research will be conducted in different directions: - Exploring state of the art techniques. - Designing and applying experiments on existing tool-sets. - Evaluating the results of the experiments based on the real-life case studies. - Improving the techniques and/or the tool to meet the requirements of the companies. The proposal will provide results for: - Education: like offering courses, lectures, students projects, solutions for privacy preservation challenges within the educational institutes. - Companies: like providing tool evaluation insights based on case studies and giving proposals for enhancing current challenges. - Research centre (i.e., Creating 010): like expanding its expertise on privacy protection technologies and publishing technical reports and papers. This research will be sustained by pursuing following up projects actively.
