Where to go: Computational and visual what-if analyses in soccer

ABSTRACT

To prepare their teams for upcoming matches, analysts in professional soccer watch and manually annotate up to three matches a day. When annotating matches, domain experts try to identify and improve suboptimal movements based on intuition and professional experience. The high amount of matches needing to be analysed manually result in a tedious and time-consuming process, and results may be subjective. We propose an automatic approach for the realisation of effective region-based what-if analyses in soccer. Our system covers the automatic detection of region-based faulty movement behaviour, as well as the automatic suggestion of possible improved alternative movements. As we show, our approach effectively supports analysts and coaches investigating matches by speeding up previously time-consuming work. We enable domain experts to include their domain knowledge in the analysis process by allowing to interactively adjust suggested improved movement, as well as its implications on region control. We demonstrate the usefulness of our proposed approach via an expert study with three invited domain experts, one being head coach from the first Austrian soccer league. As our results show that experts most often agree with the suggested player movement (83%), our proposed approach enhances the analytical capabilities in soccer and supports a more efficient analysis.     

In-class examinations in college-level science: New theory,new practice

Every faculty member knows that exams drive student behavior. Testing and grading are part of every course, but generally of lesser importance to faculty members than course content itself. Recently, instructional methods and pedagogy. But as issues of grade inflation, student attrition, accountability, and authentic assessment grow in importance, we see some interesting innovations in testing methods and some interesting innovations. The authors are publishing a collection of some of these as described in their own words, by faculty themselves. Two questions underlie the study: 1) why is it so difficult to change tests and testing traditions in college-level science and 2) will the enormous efforts underway to reform pedagogy and curriculum in these disciplines have any lasting effect if testing does not have a prominent place on the reform agenda?     

The dynamics of online learning at the workplace: Peer-facilitated social learning and the application in practice

Research stresses the importance of social components in learning. The social contact with peers and tutors stimulates reflection and supports higher processes of learning necessary for the internalisation and application of new knowledge. However, merely proposing opportunities for interaction does not necessarily lead to fruitful discussion and collaboration. Social presence and facilitation are key concepts for successful mutual learning. Both are represented in Murphy’s collaboration model; social presence forms the basis of collaboration on which discussions and co-construction of knowledge evolve. Facilitation supports the entire collaboration process. In this paper, an adjusted version of Murphy’s model was applied to analyse 1085 comments shared in an online course between career practitioners of a public employment service. The results show that without a dedicated tutor, learners can still be involved in collaborative learning and co-construction of new knowledge provided that the topic under discussion is highly relevant and controversial. Learners themselves take over social presence and facilitation activities, but less frequently than when a professional tutor facilitates discussions. Ex post summative evaluation revealed that only a few learners applied the gained knowledge in the long-term. As comparisons with related research suggest, higher facilitation support leading to a higher cognitive interaction with the learning could have better supported the transfer to practice.     

Science education reform: What's wrong with the paradigm?

From previous and current efforts at science education reform, the author teases out a certain culture of reform, a set of assumptions about educational change that are no longer (if they ever were) appropriate to another task, namely managing change. With reference to a group of programs in undergraduate science instruction that work, she finds the research model, the preference for innovation, the dependence on short-term outside funding, and above all, the seeking after some universal curriculum or set of pedagogies that will solve the problem for all time, to be naive in terms of the reality and the politics of change. She would substitute what Gerald Holton in A Nation at Risk, Revisited calls cumulative improvement, and ends with some suggestions as to how such a model could be applied to the organization of college-level instruction in science.This is a portion of Chapter 1 of the bookPrograms That Work; The Implementation Challenge. Reprinted with permission by Research Corporation, Copyright 1991, all rights reserved.     

What makes science hard? A Karplus lecture

Many able students are deterred from science because of the way science courses are packaged. To find out what makes science hard for otherwise intelligent students, the author employed nonscience faculty and graduate students as surrogate students in science. Their responses to the sequence of units, demonstrations, homework assignments, examinations, and the pace and structure of the courses constitute an internal criticism of science education that cannot be ignored.Sheila Tobias is the author ofOvercoming Math Anxiety (W. W. Norton, 1978),Succeed with Math (The College Board, 1987),They're Not Dumb, They're Different (Research Corporation, 1990),Revitalizing Undergraduate Science: Why Some Things Work and Most Don't (Research Corporation, 1992) andBreaking the Science Barrier (The College Board, 1992).     

Text-belief consistency effect in adolescents´ comprehension of multiple documents from the Web (El efecto de consistencia en la comprensión lectora de los adolescentes de documentos múltiples provenientes de Internet)

ABSTRACT

Readers often comprehend belief-consistent information from multiple texts better compared with belief-inconsistent information (text-belief consistency effect). The aim of the present study was to investigate whether adolescents’ comprehension of multiple texts is similarly impacted by their beliefs. Moreover, readers’ prior knowledge and an alternating (compared with a blocked) mode of presenting multiple texts were expected to attenuate the text-belief consistency effect. High school students read two belief-consistent and two belief-inconsistent texts on one of two scientific issues in different modes of presentation (blocked vs. alternating). A recognition task was used to assess situation model strength for each text, and prior beliefs and prior knowledge were measured before the main experiment. As expected, in the blocked mode of presentation high school students had a stronger situation model for belief-consistent texts. In the alternating mode of presentation, participants had similar situation model strengths for the different texts. Moreover, high-knowledge participants experienced a text-belief consistency effect, whereas low-knowledge participants had weaker and similar situation models for the texts.     

Fostering students’ moderation competence: the interplay between social relatedness and perceived competence*

Using a longitudinal design, the present study examined whether two teaching concepts that varied in their capacity to foster students’ self-determination affected students’ sense of social relatedness and their perceived moderation competence, as well as the interplay between these two components and the students’ performance during a moderation exam. We conducted a quasi-experimental field study with university students (N?=?160), who were evenly distributed between an experimental (EG) and a control group (CG). The results of multi-group path analysis suggest that simultaneously fostering autonomy, competence, and relatedness (EG), in comparison to providing autonomy and competence support only (CG), leads to a stronger link between perceived competence and social relatedness. If students experience moderation competence, they in turn feel socially related to their teacher, which leads to an even higher competence perception thereafter. The crucial role of teachers’ behaviour, in particular relatedness support, in learning development is discussed.     

African-Americans’ perceptions of organ donation: ‘simply boils down to mistrust!’

Five focus groups were conducted to better understand African-American adults’ (N?=?62) perceptions of organ donation. Applying the health belief model, results revealed that participants generally were aware of the need for organ donors and felt susceptible to needing a transplant in the future. Additionally, the number of perceived barriers greatly outweighed the number of perceived benefits to organ donation. Several novel barriers to organ donation, not currently identified in the literature, arose during focus group discussions, alluding to a larger source of mistrust among African-Americans. In respect to self-efficacy, participants’ responses further delineated the distinction between task and decisional efficacy. The results are discussed with an emphasis on how the current findings compare and contrast with previous work, as well as a focus on the practical implications for targeted organ donation campaigns aimed at African-American communities.