• Title/Summary/Keyword: 수강 과목 추천

Search Result 8, Processing Time 0.024 seconds

K-Nearest Neighbor Course Recommender System using Collaborative Filtering (협동적 필터링을 이용한 K-최근접 이웃 수강 과목 추천 시스템)

  • Sohn, Ki-Rack;Kim, So-Hyun
    • Journal of The Korean Association of Information Education
    • /
    • v.11 no.3
    • /
    • pp.281-288
    • /
    • 2007
  • Collaborative filtering is a method to predict preference items of a user based on the evaluations of items provided by others with similar preferences. Collaborative filtering helps general people make smart decisions in today's information society where information can be easily accumulated and analyzed. We designed, implemented, and evaluated a course recommendation system experimentally. This system can help university students choose courses they prefer to. Firstly, the system needs to collect the course preferences from students and store in a database. Users showing similar preference patterns are considered into similar groups. We use Pearson correlation as a similarity measure. We select K-nearest students to predict the unknown preferences of the student and provide a ranked list of courses based on the course preferences of K-nearest students. We evaluated the accuracy of the recommendation by computing the mean absolute errors of predictions using a survey on the course preferences of students.

  • PDF

A Course Recommendation System as Course Coordinator based on WIPI (코스 코디네이터의 역할을 하는 WIPI 기반 과목 추천 시스템)

  • Han, Yong-Jae;Lee, Young-Seok;Cho, Jung-Won;Choi, Byung-Uk
    • Proceedings of the Korea Information Processing Society Conference
    • /
    • 2004.05a
    • /
    • pp.973-976
    • /
    • 2004
  • IT 관련 기술의 발전은 'Any Time, Any Where, Any Service'를 사용자에게 제공할 수 있는 제반 여건을 마련하였다. 기존 웹 기반의 학사정보 시스템에서는 사용자의 이동성이 제한적이었고, 이를 해결하고자 한 무선 인터넷 기반의 학사정보 시스템은 클라이언트의 어플리케이션이 표준화된 환경에서 구축되지 않아서 모바일 기기의 플랫폼에 종속적이었다. 또한, 선택과목이 많은 학부제에서는 코스 코디네이터의 역할이 매우 중요하지만, 코스 코디네이터의 역할을 하는 지도교수와 학생 간의 커뮤니케이션의 부족으로 학생들은 도움을 받기 어렵다. 본 논문에서는 JAVA와 WIPI를 이용하여 플랫폼에 독립적이며 전공분야의 중요과목을 추천해 주는 과목 추천 시스템을 제안한다. 과목 추천 시스템은 학생들에게 수강과목에 대해 조언을 해 주는 코스 코디네이터의 역할을 대신할 수 있을 것이다. 또 학생들은 언제 어디서나 개인 휴대폰을 이용하여 수강신청에 관한 학사정보를 관리할 수 있고, 시스템의 추론에 따른 추천 과목을 수강하여 전공 분야에 대한 깊은 지식을 갖출 수 있을 것이다.

  • PDF

Recommendation System of University Major Subject based on Deep Reinforcement Learning (심층 강화학습 기반의 대학 전공과목 추천 시스템)

  • Ducsun Lim;Youn-A Min;Dongkyun Lim
    • The Journal of the Institute of Internet, Broadcasting and Communication
    • /
    • v.23 no.4
    • /
    • pp.9-15
    • /
    • 2023
  • Existing simple statistics-based recommendation systems rely solely on students' course enrollment history data, making it difficult to identify classes that match students' preferences. To address this issue, this study proposes a personalized major subject recommendation system based on deep reinforcement learning (DRL). This system gauges the similarity between students based on structured data, such as the student's department, grade level, and course history. Based on this information, it recommends the most suitable major subjects by comprehensively considering information about each available major subject and evaluations of the student's courses. We confirmed that this DRL-based recommendation system provides useful insights for university students while selecting their major subjects, and our simulation results indicate that it outperforms conventional statistics-based recommendation systems by approximately 20%. In light of these results, we propose a new system that offers personalized subject recommendations by incorporating students' course evaluations. This system is expected to assist students significantly in finding major subjects that align with their preferences and academic goals.

A Mobile Course Coordinator System for Learning Profound Major Field (전공 분야 심화 학습을 위한 모바일 코스 코디네이터 시스템)

  • Han, Yong-Jae;Lee, Young-Seok;Cho, Jung-Won;Choi, Byung-Uk
    • The KIPS Transactions:PartA
    • /
    • v.11A no.4
    • /
    • pp.285-296
    • /
    • 2004
  • The rapid progress of IT technologies promoted the foundation to offer users 'Any Time, Any Where, Any Service', and wireless internet services made it possible to use wired internet services while traveling. The previous academic administration management system having migrated from wired to wireless was dependent on mobile equipments' platform because of not being constructed on standard surroundings. And in the aspect of faculty system, course coordinator plays an significant role in building curricula and manage them, and finally counseling students with regard to them. But the course coordinator can't afford to advise students on which fields of their faculty fit them and which courses they have to take. We propose a mobile course coordinator system to help students learn profound courses of their major fields. Also the proposed system is implemented by using JAVA and WIPI technology, so that it is platform-independent. A mobile course coordinator system has an inference engine considering not only course trees which tell informations about the courses in every fields, but also personal courses that students have taken. The inference engine calculates three weights, representing the significance of each course considering every fields, the score of prerequisite courses which a student have taken, and the suitability in which department each student fits. When students apply for taking lectures, a mobile course coordinator system recommends them the most suitable courses. A mobile course coordinator system is able to substitute for the course coordinator who is counseling students. And the students with personal cellular phone are able to keep tracking their courses, and improve their knowledge about major with taking courses which the system's inference engine will advice.

Design and Implementation of a Mobile Course Coordinator System (모바일 코스 코디네이터 시스템의 설계 및 구현)

  • Lee, Youngseok;Cho, Jungwon;Han, Yongjae;Choi, Byung-Uk
    • The Journal of Korean Association of Computer Education
    • /
    • v.8 no.5
    • /
    • pp.51-62
    • /
    • 2005
  • In the aspect of the faculty, a course coordinator plays an significant role in managing the curriculum and counseling students on academic matters and fostering their progress in the course. However, the course coordinator cannot afford to advise students on which fields of their faculty fit them and which courses they have to take. This paper proposes a mobile course coordinator system to help students learn courses of their major fields deeply. Also the proposed system is implemented by using WIPI technology, so that it is platform-independent and it is able to assist the course coordinator who is counseling students. And the students with personal cellular phones are able to keep tracking their courses, and improve their knowledge about major subjects by taking courses which the system's inference engine will advise.

  • PDF

Personalized University Educational Contents Recommendation Scheme for Job Curation Systems (취업 큐레이션 시스템을 위한 개인 맞춤형 교육 콘텐츠 추천 기법)

  • Lim, Jongtae;Oh, Youngho;Choi, JaeYong;Pyun, DoWoong;Lee, Somin;Shin, Bokyoung;Chae, Daesung;Bok, Kyoungsoo;Yoo, Jaesoo
    • The Journal of the Korea Contents Association
    • /
    • v.21 no.7
    • /
    • pp.134-143
    • /
    • 2021
  • Recently, with the development of mobile devices and social media services, contents recommendation schemes have been studied. They are typically applied to the job curation systems. Most existing university education content recommendation schemes only recommend the most frequently taken subjects based on the student's school and major. Therefore, they do not consider the type or field of employment that each student wants. In this paper, we propose a university educational contents recommendation scheme for job curation services. The proposed scheme extracts companies that a user is interested in by analyzing his/her activities in the job curation system. The proposed scheme selects graduates or mentors based on the reliability and similarity of graduates who have been employed at the companies of interest. The proposed scheme recommends customized subjects, comparative subjects, and autonomous activity lists to users through collaborative filtering.

Ontology knowledge base and web base supporting system for goal oriented learning design (직무 역량 기반 온톨로지 지식베이스 및 학습 설계 지원 시스템 제안)

  • Kim, Min-Ju;Kang, Dae-Hyun;Lee, Seok-Won
    • Proceedings of the Korean Society of Computer Information Conference
    • /
    • 2017.01a
    • /
    • pp.163-166
    • /
    • 2017
  • 본 논문에서는 학생들에게 자신의 진로결정에 도움이 될 수 있는 비교과 및 교과 정보 제공 시스템을 제안한다. 이는 교수들의 학생 수강지도에 활용되어 정확한 진로 지도에 도움을 줄 수 있다. 이러한 시스템을 구현하기 위하여, 온톨로지 기반 지식베이스를 구축한다. 온톨로지 지식베이스는 강의, 역량, 능력단위, 직무, 기업 정보로 구성이 되어있으며 유지보수가 쉬운 구조로 설계하였다. 또한 온톨로지 지식베이스가 가진 정보로 새로운 지식들을 추론한다. 이 추론 결과를 웹 인터페이스를 활용해, 사용자가 개념들 간의 관계를 파악하고 자신에게 맞는 과목 및 직무를 추천받을 수 있도록 한다.

  • PDF

Major Class Recommendation System based on Deep learning using Network Analysis (네트워크 분석을 활용한 딥러닝 기반 전공과목 추천 시스템)

  • Lee, Jae Kyu;Park, Heesung;Kim, Wooju
    • Journal of Intelligence and Information Systems
    • /
    • v.27 no.3
    • /
    • pp.95-112
    • /
    • 2021
  • In university education, the choice of major class plays an important role in students' careers. However, in line with the changes in the industry, the fields of major subjects by department are diversifying and increasing in number in university education. As a result, students have difficulty to choose and take classes according to their career paths. In general, students choose classes based on experiences such as choices of peers or advice from seniors. This has the advantage of being able to take into account the general situation, but it does not reflect individual tendencies and considerations of existing courses, and has a problem that leads to information inequality that is shared only among specific students. In addition, as non-face-to-face classes have recently been conducted and exchanges between students have decreased, even experience-based decisions have not been made as well. Therefore, this study proposes a recommendation system model that can recommend college major classes suitable for individual characteristics based on data rather than experience. The recommendation system recommends information and content (music, movies, books, images, etc.) that a specific user may be interested in. It is already widely used in services where it is important to consider individual tendencies such as YouTube and Facebook, and you can experience it familiarly in providing personalized services in content services such as over-the-top media services (OTT). Classes are also a kind of content consumption in terms of selecting classes suitable for individuals from a set content list. However, unlike other content consumption, it is characterized by a large influence of selection results. For example, in the case of music and movies, it is usually consumed once and the time required to consume content is short. Therefore, the importance of each item is relatively low, and there is no deep concern in selecting. Major classes usually have a long consumption time because they have to be taken for one semester, and each item has a high importance and requires greater caution in choice because it affects many things such as career and graduation requirements depending on the composition of the selected classes. Depending on the unique characteristics of these major classes, the recommendation system in the education field supports decision-making that reflects individual characteristics that are meaningful and cannot be reflected in experience-based decision-making, even though it has a relatively small number of item ranges. This study aims to realize personalized education and enhance students' educational satisfaction by presenting a recommendation model for university major class. In the model study, class history data of undergraduate students at University from 2015 to 2017 were used, and students and their major names were used as metadata. The class history data is implicit feedback data that only indicates whether content is consumed, not reflecting preferences for classes. Therefore, when we derive embedding vectors that characterize students and classes, their expressive power is low. With these issues in mind, this study proposes a Net-NeuMF model that generates vectors of students, classes through network analysis and utilizes them as input values of the model. The model was based on the structure of NeuMF using one-hot vectors, a representative model using data with implicit feedback. The input vectors of the model are generated to represent the characteristic of students and classes through network analysis. To generate a vector representing a student, each student is set to a node and the edge is designed to connect with a weight if the two students take the same class. Similarly, to generate a vector representing the class, each class was set as a node, and the edge connected if any students had taken the classes in common. Thus, we utilize Node2Vec, a representation learning methodology that quantifies the characteristics of each node. For the evaluation of the model, we used four indicators that are mainly utilized by recommendation systems, and experiments were conducted on three different dimensions to analyze the impact of embedding dimensions on the model. The results show better performance on evaluation metrics regardless of dimension than when using one-hot vectors in existing NeuMF structures. Thus, this work contributes to a network of students (users) and classes (items) to increase expressiveness over existing one-hot embeddings, to match the characteristics of each structure that constitutes the model, and to show better performance on various kinds of evaluation metrics compared to existing methodologies.