A survey of itemset mining Fournier‐Viger, Philippe; Lin, Jerry Chun‐Wei; Vo, Bay ...
Wiley interdisciplinary reviews. Data mining and knowledge discovery,
July/August 2017, Letnik:
7, Številka:
4
Journal Article
Recenzirano
Itemset mining is an important subfield of data mining, which consists of discovering interesting and useful patterns in transaction databases. The traditional task of frequent itemset mining is to ...discover groups of items (itemsets) that appear frequently together in transactions made by customers. Although itemset mining was designed for market basket analysis, it can be viewed more generally as the task of discovering groups of attribute values frequently cooccurring in databases. Because of its numerous applications in domains such as bioinformatics, text mining, product recommendation, e‐learning, and web click stream analysis, itemset mining has become a popular research area. This study provides an up‐to‐date survey that can serve both as an introduction and as a guide to recent advances and opportunities in the field. The problem of frequent itemset mining and its applications are described. Moreover, main approaches and strategies to solve itemset mining problems are presented, as well as their characteristics are provided. Limitations of traditional frequent itemset mining approaches are also highlighted, and extensions of the task of itemset mining are presented such as high‐utility itemset mining, rare itemset mining, fuzzy itemset mining, and uncertain itemset mining. This study also discusses research opportunities and the relationship to other popular pattern mining problems, such as sequential pattern mining, episode mining, subgraph mining, and association rule mining. Main open‐source libraries of itemset mining implementations are also briefly presented. WIREs Data Mining Knowl Discov 2017, 7:e1207. doi: 10.1002/widm.1207
This article is categorized under:
Algorithmic Development > Association Rules
Technologies > Association Rules
The search space in frequent itemset mining for items {a,b,c,d,e}.
Background: The alarming outbreak of the COVID-19 virus significantly disrupted all aspects of human life, including education. As a result, e-learning has become a vital tool for education. This ...study aimed to investigate the attitudes of medical and anesthesia students toward e-learning in physiology during the pandemic of COVID-19. Methods: This descriptive study was conducted among 67 medical and anesthesiology students at Abadan University of Medical Sciences who studied physiology in the second semester of 2020-2021 in the form of e-learning due to the COVID-19 pandemic. A researcher-created questionnaire was used, rating items on a five-point Likert scale. Data were entered into SPSS 21 for statistical analysis and analyzed using descriptive statistics. Results: A total of 73.1% of the participants in this study were women. The favorable opinions of students by percentage were as follows: satisfactory access to the Internet, 71.0%; the possibility of downloading educational content from the educational system, 88.2%; effective communication between teacher and student through e-learning, 20.6%; e-learning by combining online and offline education, 69.1%; the suitability of offline educational content due to accessibility convenient to learn at any time and place where the student wants to learn, 75%; face-to-face education is more suitable than e-learning, 60.3%. Conclusion: Effective communication between teacher and student is weak in virtual/online education. Students were generally positive about a combination of online and offline virtual education together and liked offline educational content due to ease of access at any time and place. In general, students preferred face-to-face teaching to virtual education.
The Covid-19 pandemic has been affecting the education field so much that the educational process is changing to web-based instruction such as e-learning. The aim of this research is to describe the ...application of an e-learning strategy for speaking skill in the Arabic Language Center (PKPBA) Universitas Islam Negeri Maulana Malik Ibrahim Malang and the students' opinions about it. This research is descriptive qualitative research. Data sources are the process of teaching speaking skill in class 21 of the science and technology department and students. The data collection tools used are observation, interview and documentation. As for the method of data analysis, it is a method of analyzing qualitative data that consists of stages: data reduction, presentation, and conclusion. This study indicated that an e-learning strategy for speaking skill in the Arabic Language Center at Universitas Islam Negeri Maulana Malik Ibrahim Malang was applied by means of WhatsApp, YouTube, and Google Meet. The strategy consisted of actions: 1) Before education: preparing a WhatsApp group, giving study materials in the form of pdf and educational video on a YouTube link; 2) When teaching: sharing a Google Meet link, explaining new vocabulary or phrases, reading the exemplary dialogue text and students imitate it, several students practice the dialogue, giving students a chance to submit questions; 3) After education: evaluation through the application of dialogue between students and conclusion. As for the students, they see that this strategy is attractive and suitable for its application in teaching speaking skill, and it is effective in improving their speaking skill and motivation when learning.
Mathematical connection capabilities are part of an interconnected network of interconnected knowledge packages of interconnected knowledge packages of knowledge packages consisting of key concepts ...for understanding and developing relationships between mathematical ideas, concepts, and procedures. The purpose of this paper is to develop e-learning based on animation content to improve mathematical connection abilities in senior high school students. The e-learning was developed using framework proposed by Moodle, while the animation content was developed using macromedia flash. To get the student mathematical connection abilities, pretest and posttest were administered before and after teaching and learning process. The data were analyzed using t-test and found that e- learning which was based on animation content not only had significant effect on mathematical connection abilities but also been able to improve students’ mathematical connection abilities far better than that of conventional approach. From the posttest results show that the total score of mathematical connection abilities presented shows that the average posttest of mathematical connection abilities is 72.9 e-learning based on animation content, this shows that e-learning based on animation content can improve mathematical connection skills students with e-learning.
E-learning includes many methods that can profoundly change the learning process. We were interested in the views of both teachers and students on risks and benefits brought about by e-learning. ...There were conducted semi-structured interviews with instructors and collected and analyzed essays of students attending the course of Business Ethics. The results show that e-learning may change the roles of both teachers and students as it is attractive and improves clarity of instruction as well as course integrity, individualization of the learning process and feedback. On the other hand, it favors interactivity over dialogue, and generates simplification as well as superficiality. Moreover, both teachers and students perceive there a lack of personal contact and fundamental human communication.
The coronavirus pandemic (COVID-19) has brought another dimension to teaching and learning across the levels of education. The lockdown imposed in many countries to curtail the pandemic forced many ...institutions of learning to shift to the online mode of teaching and learning. Using a descriptive survey research design, this study explored the online learning experiences of pre-service teachers at a Ghanaian university during the COVID-19 lockdown. The study focused on the pre-service teachers’ preparedness for online learning in terms of their digital literacy and technological devices used for online learning, their positive online learning experiences, and the challenges they encountered learning online. The findings suggested that the pre-service teachers were digitally literate and mostly accessed online learning using smartphones. Besides, online learning enabled them to communicate and collaborate actively with their course mates and lecturers. It was found that the flexibility of online learning increased the students’ motivation to learn. However, poor internet connectivity, the high cost of data, erratic power supply, lack of appropriate devices, inability to effectively manage their time, and family interruptions were some of the challenges experienced by the pre-service teachers.
Learning management system (LMS) is playing a major role in higher academic institutions worldwide. Even though full e-learning is becoming a feasible strategy for a number of institutions in the ...world, some institutions, especially those in developing countries, are resisting a full e-learning environment. Consequently, these academic institutions initially adopt LMS for blended learning to assess their readiness for full e-learning transformation. There are a number of studies that investigate the determinants of full e-learning, but very limited studies investigate the link between learners' perception of blended learning and full e-learning. The objective of this study was to link learners' adoption (perceived ease of use, perceived usefulness (PU) and satisfaction) of LMS in blended learning and their personal characteristics (self-efficacy, technology experience and personal innovativeness) to their intention to use full e-learning. Data were collected through a questionnaire from 512 learners in Oman. The study found that personal innovativeness, PU and satisfaction of LMS in blended learning are significant to learners' intention to engage in full e-learning. Thus, learners' adoption of LMS in blended learning boosts their intention to full e-learning. The results provide useful insights for practitioners and researchers on full e-learning planning and strategy.
E-Learning for Nurses - An Integrative Review Christopher Stevens; Judith Horrigan; Irene Koren ...
Diversity of Research in Health Journal,
01/2021, Letnik:
4, Številka:
1
Journal Article
Recenzirano
Odprti dostop
E-learning is a common method of continuing education for hospital staff registered nurses and there have been many studies related to the value of e-learning. However, no systematic review of ...studies on nurses’ e-learning could be found. An integrative review was conducted on the published literature between 2010 and 2018 on e-learning for registered nurses. The review’s goal was to systematically analyze and summarize what is known about nurses’ e-learning and elucidate where future research could explore. The final review included 21 out of 497 potential articles. Analysis revealed key themes of: Benefits of e-learning to the nurse, the patient, and the hospital, Barriers to e-learning, and Improvements for e-learning. E-learning has many suggested benefits for continuing education for registered nurses, but there are also barriers and areas for improvement. Additional research with a focus on specific jurisdictions is needed to explore how nurses perceive e-learning in specific contexts.
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