A Class of Limited Sensing Random Access Algorithms with Resistance to Feedback Errors and Effective Delay Control

Burrell Anthony T.,Papantoni Titsa P. The Korea Institute of Information and Commucation 2006 Journal of communications and networks Vol.8 No.1

We present and analyze a class of limited sensing random access algorithms with powerful properties. The algorithms are implementable in wireless mobile environments and their operational properties are simple. Their throughput in the worst case of the limit Poisson user model is 0.4297, while this throughput degrades gracefully in the presence of channel feedback errors.

Korean University Students' Perceptions of Emergency Remote Teaching

John Burrell,이지은 청주교육대학교 교육연구원 2021 학교와 수업 연구 Vol.6 No.2

The COVID-19 pandemic has put unprecedented stress on educational institutions worldwide. This study was carried out to determine students’ perceptions of Emergency Remote Teaching(ERT) at a Korean university. Eight hundred eighty-nine students were surveyed to determine their perceptions of the impact the ERT classes had on their learning. The participants were also asked what they liked least and most about their classes. The results were a broadly positive perception of the classes by the students. Convenience was the most and least liked about their classes. Technology problems were the least liked aspect of the courses. There were significant differences in responses between first-and second-year participants and male and female participants. The program's relative success can be attributed to the suitability of the planned curriculum adapting to online learning, small class sizes, technological infrastructure, and the digital literacy of the students. The implications of the experience of delivering ERT during the pandemic are that institutions must continue to perfect the delivery of the courses. The full impact of the worldwide move to ERT is not yet fully known and institutions will have to evaluate the effectiveness of their responses and the innovations put in place may have a lasting effect on education. One effect may be a shift to more individualized and independent learning. The uneven distribution of technological infrastructure worldwide is another area that was highlighted by the pandemic and must be addressed.

Korean university students’ perceptions of two extracurricular English programs

John Burrell,이지은 한국교양교육학회 2017 교양교육연구 Vol.11 No.3

“Korean university students’ perceptions of two extracurricular English programs.” New Korean Journal of English Language and Literature 59.2 (2017): xx-xx. Despite the Ministry of Educations’ guidelines for Korean schools to provide their students ways to achieve communicative competence through their high school English curriculum, many students graduate from high school with little or no experience actually using spoken English for authentic communication. Two programs offered at a private Korean university, Star English and English Corner, were created to give the students the opportunity to have more authentic communication with native speakers in an informal setting and without the pressure of being evaluated. Such opportunities are greatly desired by many Korean students and are often lacking in the formal university curriculum, due to an emphasis on studying for the TOEIC test. The two programs approach the issue in different ways. English Corner is run like a regular class with two native English speaking teachers and up to 40 students. Star English pairs each student with an instructor for a fifteen minute conversation. The present study’s aim was to determine students’ level of satisfaction for these two extracurricular English programs. One hundred and twenty eight students were surveyed and thirteen were interviewed. Through the survey and interviews the study found high levels of student satisfaction for both programs. However, student satisfaction was found to be significantly higher for the Star English program in all areas. The students believed both of the programs increased their general confidence in their English ability.

Instructors’ Use of Written Corrective Feedback at a Korean University

John Burrell,이제영,이지은 현대영어교육학회 2015 현대영어교육 Vol.16 No.4

The study’s aim was to determine how teachers at a Korean university give students written corrective feedback (WCF) in their writing classes. Unlike previous research the participants were not asked how they gave WCF or told to use a specific method, but were asked to show how they gave WCF. Twenty-five Korean and twenty-five foreign professors were given three authentic student texts to mark. The teachers ‘marking was coded according to a typology developed by Ellis (2009a) and the number of instances of each type of correction was recorded. Overall, the most commonly used method was Direct CF, whereby the teacher gives the student the correct form. This was followed by Indirect A, where the error is indicated and located, but no clue as to the nature of the error is given. The third most common was Metalinguistic A, locating the error and using a code to give the student a hint as to the nature of the error. However, rather than using a single method it was far more common for the teachers to use a combination of WCF, most often using direct correction and some type of indirect correction. The vast majority of the teachers provided Unfocused CF, giving feedback on all types of errors, not limited to one or two specific types. Furthermore, individual teachers used different methods or combinations of methods for each of the three texts. A suggestion for teacher development was presented.

Korean University Student Preferences for Written Corrective Feedback on English Writing

John Burrell,Jeeeun Lee,Jeyoung Lee 한국영어교과교육학회 2016 영어교과교육 Vol.15 No.3

The purpose of this study was to determine the preferences of Korean university students among five specific types of written corrective feedback (WCF) for English writing. A cross-sectional sample of ninety-two freshmen at a private university were administered an anonymous questionnaire. The participants were given examples of passages using the different types of WCF and were asked to rate the usefulness of each on a scale of one to seven. The study also wanted to determine the five types of WCF. Follow up group interviews were conducted to gain additional information about their preferences. The results of a repeated-measures ANOVA clearly showed Direct WCF was preferred by the students over the other methods by significant margin. ANOVA tests showed a cluster of three methods: Indirect A, Meta A, and Meta B in second place. There was no significant difference between the participants’ preference for these three methods. ANOVA also showed Indirect B, as the least useful of all the methods. Prior to the time of the study, the students had little experience with methods other than direct correction. However, the group interviews showed that the students understood the potential value of the indirect methods.

Blended Learning: The Way Forward for Korean Universities

John Burrell,이지은 한국멀티미디어언어교육학회 2020 멀티미디어 언어교육 Vol.23 No.2

The study was carried out to determine students’ and teachers’ perceptions of a blended learning course given at a Korean University. The students filled out a questionnaire at the end of the course asking their degree of agreement with statements concerning the course. The three teachers participated in a semi-structured interview. The Cronbach’s Alpha test was used to show the internal reliability of the questionnaire. The non-parametric Mann-Whitney U and Kruskal-Wallis tests were used to determine if there were any differences in responses between male and female students or between freshmen, sophomores, juniors or seniors. The instructors’ interview was taped and transcribed. The transcription was then manually coded using inductive coding to look for common themes. The results showed the majority of the students had not had any experience with a blended learning before this course; however, they were positive towards the blended learning format. There were no differences in responses found among any of the groups. The teachers indicated that the blended learning format was suitable for the students even though the course required more preparation than a traditional course. The study supports previous research showing positive responses by students towards blended learning courses.

Korean University Instructors and Emergency Remote TeachingDuring the COVID-19 Pandemic

John Burrell,Jee Eun Lee 한국콘텐츠학회 2021 한국콘텐츠학회 ICCC 논문집 Vol.2021 No.12

The purpose of the study was to determine the attitudes of native-speaking English speakers at a Korean university on the impact on their teaching of moving to ERT due to the COVID-19 pandemic and if their attitudes changed between the first and second semesters of the academic year 2020. All instructors were sent the survey in the spring and fall semesters. Eighty-eight instructors completed the survey in the spring and one hundred and six in the fall semester. The results showed that most of the participants in both semesters believed their students’ English ability and confidence had improved over the course. However, the participants believed student engagement, communication, collaboration, and sense of community suffered because of the necessity of ERT. In the fall semesters, the participants reported significantly higher communication with students, student engagement, student collaboration, sense of community and believed the students could express themselves in new ways more than in the spring semester. There are several reasons postulated for the relatively positive attitude of the instructors and the tentative success of the program. First is the existing technological infrastructure in Korea and the technological proficiency of the students. A weekly professional development program mitigated the lesser technological proficiency of the teachers. In addition, the class sizes were small, making management easier. The standard curriculum was able to be used in ERT, preventing the chaos of creating an entirely new program in a very short time.

Instructors’ Use of Oral Feedback in Korean University English Classes

John Burrell,이지은 한국교양교육학회 2019 교양교육연구 Vol.13 No.3

The study shows how teachers at a Korean University gave oral corrective feedback during different classroom activities. The participants are shown five videos of authentic teaching situations. The situations progress from controlled teacher-student activities to less controlled student to student activities. The participants are asked to write down how they would respond to the students if they were in their class. There are fifty-one participants, forty-five native English speaking instructors and six Korean speaking instructors from the General English Language Program (GEL). The participants’ responses are coded according to definitions created by Lyster and Ranta (1997). An additional two codes, “No Correction” and “Note and Do Later” were added after preliminary analysis of the responses. The most common method used is a” Recast,” where the teacher repeats the student’s utterance with the correction. The results of the study show the majority of the participants change their method of correction according to the activity. The majority of the participants progress from using “Recasts” and “Metalinguistic” methods during to the teacher to student activities to using “No Correction” or “Note and Do Later” during the student to student activities. There are two significant associations between the degrees of the participants and the methods of correction in Videos one and two. The participants indicate that they understand their students expect feedback on their errors. The majority state that the students’ level of proficiency affect their method of error correction.

Korean University Students’ Perceptions of Emergency Remote Teaching

John Burrell(존 버렐),Jee Eun Lee(이지은) 한국콘텐츠학회 2021 한국콘텐츠학회 종합학술대회 논문집 Vol.2021 No.8

A Class of Limited Sensing Random Access Algorithms with Resistance to Feedback Errors and Effective Delay Control

A. T. Burrell,T. P. Papantoni,F. Portier,I. Raos,H. Y. Jung,S. J. Koh 한국통신학회 2006 Journal of communications and networks Vol.8 No.1