• Journal of the Korea Society for Simulation
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• v.27 no.1
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• pp.1-13
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• 2018

Earthwork planning is one of the critical issues in a construction process management. For the construction process management, there are some different approaches such as optimizing construction with either mathematical methodologies or heuristics with simulations. This paper propose a simulated earthwork scenario and an optimal path for the simulation using a reinforcement learning. For reinforcement learning, we use two different Markov decision process, or MDP, formulations with interacting excavator agent and truck agent, sequenced learning, and independent learning. The simulation result shows that two different formulations can reach the optimal planning for a simulated earthwork scenario. This planning could be a basis for an automatic construction management.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2023.11a
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• pp.230-231
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• 2023

This study proposes a deep reinforcement learning-based algorithm to automatically generate a ship's passage plan. First, Busan Port and Gwangyang Port were selected as target areas, and a container ship with a draft of 16m was designated as the target vessel. The experimental results showed that the ship's passage plan generated using deep reinforcement learning was more efficient than the Q-learning-based algorithm used in previous research. This algorithm presents a method to generate a ship's passage plan automatically and can contribute to improving maritime safety and efficiency.

• Proceedings of the Korean Association for Survey Research Conference
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• 2002.06a
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• pp.115-133
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• 2002

최근 우리사회는 제반운영기반이 지식에 의존하고 있고 지식의 폭발적인 증가와 더불어 지식의 생명주기 단축이 매우 빠름을 특징으로 하고 있다. 지식의 중요성은 생활의 곳곳에까지도 영향을 미치게 되므로 많은 사람들이 지식사회에 부응하는 학습의 필요성을 절실히 느끼고 있지만 학습내용이 다양하게 개발되어 있지 않고, 또한 어느 학습에 어떻게 참여할지 모르는 경우도 있다. 교육인적자원부에서는 평생학습과 관련된 $\ulcorner$국가인적자원개발 기본계획$\lrcorner$(2001. 12. 7.)과 연계된 평생학습분야의 구체적 실행계획을 마련하기도 하였다. 본 연구에서는 고령화사회에서의 평생학습에 대한 수요는 계속적으로 증가할 것으로 전망하여 “사회통계조사”의 평생학습 참여실태를 검토하였고 그룹간 유사성 모델을 살펴 본 후 향후에는 평생교육이 어디에 중점을 두어야하는지를 밝혔다.

• Journal of Korean Library and Information Science Society
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• v.50 no.4
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• pp.359-379
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• 2019

This study aims to suggest the ways to reinforce academic library's supports for users' class·learning activities. For this purpose, this study collected the development plans of academic libraries in Korea, and analysed the plans for supporting class·learning activities. As a result, it is shown that the most libraries emphasized 'expansion of learning material' and marked it on development plan. As subsequent plans, libraries provided the action plans of 'expansion of reading education and reading programs', 'expansion of electronic materials', 'expansion of characterized materials' one after another. This study suggests 'user-centered collection development and expansion of learning materials', 'activation of library services making use of big data', 'enlargement of engagement services for handicapped and foreign students' as ways to strengthen the services of academic libraries to support class·learning activities of users.

• Journal of the Korean Chemical Society
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• v.68 no.4
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• pp.205-220
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• 2024

This study aims to explore characteristics of pedagogical reasoning and action of beginning science teachers that naturally and spontaneously occurs in a professional learning community. Three novice middle school science teachers who majored chemistry education in A college of education, passed the examination for selecting secondary school chemistry teachers, and had a common goal of designing 8^th grade science lesson plan voluntarily created a professional learning community and had weekly meetings over a year. Main data sources included transcribed audio-recording of 11 meetings of three science teachers in a professional learning community. Data was analyzed using Shulman's pedagogical reasoning model that includes comprehension, transformation, instruction, evaluation, reflection, and new comprehension to identify characteristics and features of pedagogical reasoning in a professional learning community. Data analysis revealed that pedagogical reasoning in a professional learning community comprises not only preparation, representations, instructional selections, and adaptation but also evaluation, reflection, and new comprehension in transformation stage. Reflection in transformation stage leads teachers to be actively engaged in discussion and get new comprehension on each sub-component(preparation, representations, instructional selections, adaptation, and evaluation) of transformation stage.

• Proceedings of the Korean Society of Computer Information Conference
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• 2016.07a
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• pp.13-15
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• 2016

에너지 소비가 큰 건물은 내부 온/습도, 이산화탄소 농도, 미세먼지 농도 등의 일정 공기 질을 유지하면서 에너지 비용을 최소화할 수 있는 제어계획을 수립하는 것이 필요하다. 기존 건물에서 실내 환경의 운영은 설정된 실내 환경 값을 기준을 벗어나면 설비 기기를 제어하는 방식으로 이루어진다. 이는 단 시간에 고에너지를 투입하여 장비를 가동시키므로 에너지 소모가 크며 peak 전력이 높아 에너지 비용이 크다는 문제가 있다. 따라서 온도를 포함한 환경이 변해가는 상황을 예측하고 사전에 에너지 사용 계획을 수립하여 관리 제어를 수행함으로써 예열부하 등의 불필요한 에너지 손실을 절감하려 한다. 이를 위해 실내 환경이 변화하는 것을 예측하고 후보 제어계획으로 제어를 수행할 때 소요되는 에너지가 어느 정도인지 시뮬레이션하여 제어계획의 적합도를 평가한다. 기존 EnergyPlus와 같은 시뮬레이션 도구는 모델이 복잡하여 시뮬레이션에 많은 시간이 필요하기 때문에 환경 변화를 반영하기 위해 주기적으로 재수립되는 수많은 제어계획 데이터를 단시간에 시뮬레이션하기에 부적합하다. 본 논문에서는 빠른 시뮬레이션을 위해 실제 운영 데이터와 에뮬레이션을 통해 획득한 운영 데이터를 기반으로 학습 알고리즘을 이용하여 제어계획 적용 시의 미래 상황을 예측한다.

• Proceedings of the Korea Multimedia Society Conference
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• 2000.11a
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• pp.419-422
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• 2000

본 논문에서는 길을 기반으로 하여 학습자 스스로 학습의 장면을 결정하고, 학습의 형태를 계획하여 학습을 주도적으로 이끌어 낼 수 있도록 하는 학습자 중심의 자기주도적 학습 환경을 선계 및 구현하였다. 학습 설계 대상은 학습자와 길 사이의 동적 상호작용을 통하여 지필 학습방법으로 학습하기 힘들었던 단원인 고등학교 공통수학의 삼각함수를 선택하였다. 학습자가 학습장면에서 직접 실행해 보고 도형을 이동시켜 변화하는 현상을 관찰하고 탐구함으로써 실시간으로 피드백이 가능하여 학습의 효과를 극대화하였으며 학습자에 대한 정보와 학습의 상태는 DB를 이용하여 관리하도록 하였고 형성평가와 총괄평가는 DB를 이용하도록 설계하였다.

• 건강소식
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• v.37 no.1
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• pp.32-33
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• 2013

새해를 맞아 흔히 세우는 계획의 주제로는 무엇이 있을까? 저축, 금연, 여행, 자격증, 학습 등 그 종류도 다양하다. 하지만 이런 많은 계획을 세우기에 앞서 꼭 챙겨야 할 것이 있다. 바로 모든 계획의 밑바탕이 되는 '건강 계획'이다. 성장기인 10대부터 청장년층을 넘어 노년기까지, 우리가족의 연령대별 건강계획을 세워보자.

• Journal of the Institute of Electronics Engineers of Korea CI
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• v.48 no.5
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• pp.42-48
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• 2011

Agent acts for specification purpose, which is common element of CGF (Computer Generated Forces). When basic agent acts as planned, the advanced intelligence agent can do more than this. It can follow predefined actions along appointed script to achieve purpose or lay another plans when it is difficult to achieve. In other words, it can amend plan again or make new plan in order to achieve goals. When plan fails, agent amends oneself, possibly decreases target level to achieve easily. In doing so, the agent calculates a quantitative value for changing plans in realtime, and choose appropriate alternative plans when the threshold value reaches an limit. In this paper, we propose an military system in which the planned action can be modified according to the level of achievement and alternative plans can be generated accordingly.

• The KIPS Transactions:PartA
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• v.11A no.4
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• pp.297-302
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• 2004

In the information-oriented society, the paradigm of education has changed from the existing traditional teaching-centered education to the learning-centered education. In the Web-based Learning System which an learning-centered educational environment using the internet, students should have responsibility of their learning as taking more opportunities to participate their learning positively, to control their process of learning and to evaluate their learning by themselves to improve self-directed loaming ability. In this paper, the Web-based Learning System with a Self-Study Plan to lead students to select own purposes and methods of the study and write a self_evaluation is developed. The Self-Study Plan is a guide to lead the process, an order to have an individualized study and a report to evaluate own study. In addition, the suggested System is designed through object-oriented method using the extension mechanism of UML to archive the improvement of reuse and maintenance.