Improved sentence retrieval using local context and sentence length     

Alen Doko  Maja Štula  Ljiljana Šerić 《Information processing & management》2013

In this paper we propose improved variants of the sentence retrieval method TF–ISF (a TF–IDF or Term Frequency–Inverse Document Frequency variant for sentence retrieval). The improvement is achieved by using context consisting of neighboring sentences and at the same time promoting the retrieval of longer sentences. We thoroughly compare new modified TF–ISF methods to the TF–ISF baseline, to an earlier attempt to include context into TF–ISF named tfmix and to a language modeling based method that uses context and promoting retrieval of long sentences named 3MMPDS. Experimental results show that the TF–ISF method can be improved using local context. Results also show that the TF–ISF method can be improved by promoting the retrieval of longer sentences. Finally we show that the best results are achieved when combining both modifications. All new methods (TF–ISF variants) also show statistically significant better results than the other tested methods.  相似文献   

Approaches to learning of first-year and fifth-year student teachers: are there any differences?     

Iris Marušić  Ivana Jugović  Darko Lončarić 《欧洲师范教育杂志》2017,40(1):62-75

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The role of parents and peers in understanding female adolescent sexuality – testing perceived peer norms as mediators between some parental variables and sexuality     

Linda Rajhvajn Bulat  Marina Ajduković  Dea Ajduković 《Sex education》2016,16(5):455-470

Previous research has confirmed peers and parents as significant agents of socialisation with respect to young people’s sexuality. The aim of this cross-sectional cohort study was to examine how parental and peer variables predict young women’s sexual behaviour and sexuality-related thoughts and emotions, and whether perceived peer influences mediate the relationship between parental variables and young person sexuality. A total of 560 female high school students of 1st (mean age 15.56 years) and 3rd grade (mean age 17.55 years), selected by means of two-stage stratified probability sampling participated in the research. Results confirmed that peer variables explained considerably more variance in participant sexuality than parental variables. Indirect parental communication about sexuality was a significant positive predictor of sexual behaviour and sexuality-related thoughts and emotions in both subsamples. The strength of direct and indirect influences of parents and peers on young people’s sexuality is determined by the age of the young person and specific aspects of adolescent sexuality. Perceived percentage of sexually active peers was the only mediator in older participants, while in the younger subsample, additional peer variables mediated the association between some parental and sexuality variables. In the discussion, special attention is given to implications of these results for planning future forms of comprehensive sexual education.  相似文献   

Teaching informatics in primary schools: A Serbian experiment     

Dragan Vasić 《Prospects》1987,17(4):553-558

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When induction meets memory: evidence for gradual transition from similarity-based to category-based induction   总被引：3，自引：0，他引：3  

Fisher AV  Sloutsky VM 《Child development》2005,76(3):583-597

The ability to perform induction appears early; however, underlying mechanisms remain unclear. Some argue that early induction is category based, whereas others suggest that early induction is similarity based. Category- and similarity-based induction should result in different memory traces and thus in different memory accuracy. Performing induction resulted in low memory accuracy in adults and 11-year-olds, whereas 5-, and 7-year-olds were highly accurate (Experiment 1). After training to perform category-based induction, 5- and 7-year-olds exhibited patterns of accuracy similar to those of adults (Experiment 2). Furthermore, 7-year-olds, but not 5-year-olds, retained this training over time (Experiment 3). With novel categories, even adults performed similarity-based induction, exhibiting high memory accuracy (Experiment 4). These results suggest a gradual transition from similarity- to category-based induction with familiar categories.  相似文献   

Inclusive education – Empirical experience from Serbia     

Jasmina Kovačević  Dragana Maćešić-Petrović 《International Journal of Educational Development》2012

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The Influence of Academic Migration on the Intellectual Potential of Russia     

Natalia V. Latova  Vladimir I. Savinkov 《European Journal of Education》2012,47(1):64-76

The emigration of highly-qualified academics (‘brain drain’) is considered an essential factor in the decline of the human capital of post-Soviet Russia. However, statistics show that the scale of this phenomenon since 2000 was minor. The Russian scientists who went abroad for permanent residence or for a contract job abroad represented no more than 2% of Russian scientists with Candidate or Doctor of Science degrees. Yet, at the same time, the relatively new concept of ‘brain circulation’ gains more popularity. The departure of Russian scientists abroad is not only a threat to the development of domestic science but, paradoxically, also the chance to give additional stimulus to its development.  相似文献   

Effects of the shape and size of a mooring line surface buoy on the mooring load of wave energy converters   总被引：1，自引：0，他引：1  

KRIVTSOV Vladimir  LINFOOT Brian  HARRIS Robert E 《重庆大学学报(英文版)》2012,11(1):1-4

This paper describes the physical model testing of a wave energy converter (WEC) undertaken in the Henot-watt wave basin during October 2010 as part of the SUPERGEN2 project funded by the British gover...  相似文献   

Evaluation of mobile assessment in a learning management system     

Zorica Bogdanović  Dušan Barać  Branislav Jovanić  Snežana Popović  Božidar Radenković 《British journal of educational technology : journal of the Council for Educational Technology》2014,45(2):231-244

This article discusses the problem of using and delivering educational content from the Moodle learning management system to mobile devices. The primary goal of this study was to investigate the students' habits, motivations and technical possibilities in order to incorporate mobile‐learning activities in the e‐learning process. A mobile quiz has been chosen as an activity to be delivered on mobile devices. The developed mobile quiz application was integrated into Moodle. The application interface was tailored to various types of mobile devices aiming to foster mainstreaming of mobile technologies in e‐learning. For the purposes of the evaluation, an experiment was conducted within the e‐learning system at the Faculty of Organizational Sciences, the University of Belgrade. Data were obtained from the students who attended e‐learning courses in the area of e‐business. Research findings have shown that integration of the mobile quiz application into Moodle improves students' results and increases satisfaction and motivation for using mobile devices in their learning process.  相似文献   

Using quantitative data in World Bank per-student funding reform projects: data,designs and dilemmas in transition countries     

Rosalind Levačić 《比较教育学》2014,50(3):340-356

Since the late 1980s, education systems have increasingly moved to allocating funding for general education by means of a per-student formula. The trend started with developed economies and moved to transition and developing economies, where the World Bank has promoted the adoption of per-student funding (PSF). But promoting a particular reform, such as PSF, by including it in a package of sector-specific development projects funded by World Bank grants or loans, and employing local and international specialist staff do not guarantee successful implementation. This paper examines experience with implementing PSF to school level in transition countries, comparing varying degrees of success to date (2013) in Bulgaria, Moldova and Kosovo. The paper considers the dilemmas inherent in designing PSF formulae for schools, how this played out in each of the countries and the reasons for varying success in implementation.  相似文献