HBase based Business Process Event Log Schema Design of Hadoop Framework

함성훈,안현,김광훈 한국인터넷정보학회 2019 인터넷정보학회논문지 Vol.20 No.5

Organizations design and operate business process models to achieve their goals efficiently and systematically. With the advancement of IT technology, the number of items that computer systems can participate in and the process becomes huge and complicated. This phenomenon created a more complex and subdivide flow of business process.The process instances that contain workcase and events are larger and have more data. This is an essential resource for process mining and is used directly in model discovery, analysis, and improvement of processes. This event log is getting bigger and broader, which leads to problems such as capacity management and I / O load in management of existing row level program or management through a relational database. In this paper, as the event log becomes big data, we have found the problem of management limit based on the existing original file or relational database. Design and apply schemes to archive and analyze large event logs through Hadoop, an open source distributed file system, and HBase, a NoSQL database system.

과체로 호전된 태음인 본태성 진전 치험 1례

함성훈,정해연,이성진,임은철,Ham, Seong-Hun,Jeong, Hae-Yeon,Lee, Sung-Jin,Lim, Eun-Chul 사상체질의학회 2013 사상체질의학회지 Vol.25 No.3

Objectives The Purpose of this case is to report that a Taeeumin patient diagnosed as essential tremor was treated with Melonis Pedicelus and then patient's symptoms improved. Methods We prescribed Melonis Pedicelus for patient's physical symptoms. The improvement of the patient's essential tremor was evaluated. Results After the Melonis Pedicelus was given, the patient's Essential tremor and physical symptoms were improved. Conclusions This case study showed an efficient result of using Melonis Pedicelus in the essential tremor of Taeeumin.

인체(瓜?)를 사용한 태음인(太陰人) 현훈(眩暈) 환자 치험 2례

함성훈,정해연,송은영,임은철,Ham, Seong-Hun,Jeong, Hae-Yeon,Song, Eun-Young,Lim, Eun-Chul 사상체질의학회 2012 사상체질의학회지 Vol.24 No.3

Objectives We report a series of 2 treatment cases with Melonis Pedicelus which is based on Sasang constitutional Medicine for Vertigo in Taeumin. Methods We prescribed Melonis Pedicelus for their physical symptoms. The improvement of their Vertigo was evaluated. Results After the Melonis Pedicelus was given, the patient's Vertigo and physical symptoms were improved. Conclusions These case-studies showed an efficient result of using Melonis Pedicelus in the Vertigo of Taeumin.

병렬화된 유전자 알고리즘을 이용한 구조물 손상탐지

함성훈,이수민,조진연,김기욱 한국항공우주학회 2003 한국항공우주학회 학술발표회 논문집 Vol.- No.-

가솔린 기관의 배기밸브 타이밍 변화에 따른 촉매 가열 촉진에 관한 실험적 연구

함성훈,권영웅 한국기계기술학회 2009 한국기계기술학회지 Vol.11 No.1

On cold start operation of a gasoline engine, a catalyst shows poor performance before it reaches activation temperature. Therefore, fast warmup of the catalyst is very crucial to reduce harmful emissions. In this study, an appropriate control strategy is investigated to increase exhaust gas temperature through changes of exhaust valve timing. An advance of exhaust valve timing decreases residual gas in cylinders due to decrease of valve overlap period. A control strategy of proper valve timing is suggested in order to achieve fast light-off of the catalyst and stable operation of the engine in a cold start and idle operation.

Development of Electric Motion Wheel Chair Driving System using Planetary Gear Device

함성훈,염광욱 한국인터넷방송통신학회 2020 Journal of Advanced Smart Convergence Vol.9 No.3

A wheelchair is an essential rehabilitation assistant device for the movement of paraplegia patients and generally paralyzed patients who cannot walk normally. In particular, the applicability of the manual/motorized wheelchair is gradually increasing. Until now, decelerators using belt, chain and worm gears, etc have been widely used. However, a decelerator takes a large space although it is a simple device and thus is not ideal for the driving part of manual/motorized wheelchair. For these reasons, in this study we developed a driving part producing a large driving force through a decelerator using planetary gears rather than conventional worm gear-based decelerator. We designed the tooth profile of the planetary gears for decelerator using Kisssoft program, In addition, we designed the driving part so as to apply it to the wheels of conventional wheelchairs, and then optimized the mechanism for the principles of manual/motorized transposition of the driving part and the operational principles. Based on the results of this study, we finally designed and manufactured a driving part for wheelchair decelerator in the form of planetary gears with 1 sun gear, 2 planetary gears and 1 ring gear.

노약자 및 장애인을 위한 보행보조기 구동과 제어시스템의 특허동향조사

함성훈 한국특허학회 2015 특허학연구 : 한국특허학회지 Vol.16 No.1

최근에 노인인구의 증가로 인해 노약자 및 장애인을 위한 보행보조기에 대한 관심이 증가하고 있다. 노약자 및 장애인을 위한 보행보조기의 구동과 제어방법에 관련된 기술에 대한 특허동향을 파악해보고 자 한다. 기존의 보행보조기는 사용자에게 보행보조기 형태로 걷기만 지원하거나 휠체어형태로 탑승이 동을 지원한다. 이것은 동력이 없는 시스템으로써 경사 및 안전상의 문제 등 공간에서 취약함이 있다. 따라서 사용자의 걷기, 앉기와 서기를 지원해주고, 비정형 지역이나 경사로 등에서 안전하게 사용자가 이동할 수 있도록 보조해주는 보행보조기 시스템 개발이 요구되고 있다. 이에 본 논문에서 보행보조기 수용증가를 보이고, 미래 산업에 각광받는 기술임을 각인시키고, 보행보조기의 메커니즘과 사용자의 보행의지파악과 안전제어시스템을 알아본다. Recently, there is a growing interest in walking assistance device for the old, the infirm and the disabled due to ageing population growth. The purposes of this study were to investigate and analysis patents of the method of the control and driving of walking assistance device for the old, the infirm and the disabled. Conventional walking assistance device has assisted its user in walking and wheeling down. The system of the device has safety problems with climbing a steep slope for lack of power. So, it is required to develop walking assistance device that could assist a user in walking, sitting, and standing and meet the safety requirements. Hereby the paper are to check increased demand for the safe walking assistance device, emphasize the necessity of the safety technology, and investigate the mechanism and safety control of a walking assistance device.

직선 모듈에 적용 가능한 치형의 설계

함성훈,남원기,오세훈 한국특허학회 2009 특허학연구 : 한국특허학회지 Vol.11 No.3

액티비티별 특징 정규화를 적용한 LSTM 기반 비즈니스 프로세스 잔여시간 예측 모델

함성훈,안현,김광훈 한국인터넷정보학회 2020 인터넷정보학회논문지 Vol.21 No.3

최근에 많은 기업 및 조직들이 비즈니스 프로세스 모델의 효율적 운용을 위해 예측적 프로세스 모니터링에 관심이 높아지고 있다. 기존의 프로세스 모니터링은 특정 프로세스 인스턴스의 경과된 실행상태에 초점을 두었다. 반면, 예측적 프로세스 모니터링은특정 프로세스 인스턴스의 미래의 실행상태에 대한 예측에 초점을 둔다. 본 논문에서는 예측적 프로세스 모니터링 기능 중 하나인비즈니스 프로세스 인스턴스 실행 잔여시간 예측기능을 구현한다. 잔여시간을 효과적으로 모델링하기 위해 액티비티별 속성에 따른시간특징 값 분포 차이를 고려하여 액티비티별 특징 정규화를 제안하고 예측모델에 적용한다. 본 논문에서 제안된 모델의 예측성능우수성을 입증하기 위해서 4TU.Centre for Research Data에서 제공하는 실제 기업의 이벤트 로그 데이터를 통해 선행연구들과 비교평가 한다. Recently, many companies and organizations are interested in predictive process monitoring for the efficient operation of business process models. Traditional process monitoring focused on the elapsed execution state of a particular process instance. On the other hand, predictive process monitoring focuses on predicting the future execution status of a particular process instance. In this paper, we implement the function of the business process remaining time prediction, which is one of the predictive process monitoring functions. In order to effectively model the remaining time, normalization by activity is proposed and applied to the predictive model by taking into account the difference in the distribution of time feature values according to the properties of each activity. In order to demonstrate the superiority of the predictive performance of the proposed model in this paper, it is compared with previous studies through event log data of actual companies provided by 4TU.Centre for Research Data.

전동휠체어 기술 특허 동향 분석

함성훈 한국특허학회 2015 특허학연구 : 한국특허학회지 Vol.16 No.1

지체 장애인 또는 노약자의 생산 활동 및 사회 활동에 독립적인 참여가 가능하기 위해서는 일반인에 맞 춰진 생활 패턴을 장애 없이 적응할 수 있게 하는 다양한 보조 기구가 필요하다. 그 중 환자 및 노약자 이동에 중요한 역할을 하고 있는 휠체어 분야에서 전동휠체어의 활용도가 점차 증가하고 있다. 기본의 전동휠체어는 이동적인 면과 자세적인 면에서 한계가 존재한다. 현재의 휠체어 관련 특허 현황을 살펴보 면, 휠체어의 기본 구조에다가 다양한 변화를 준 특허들이 상당한 부분을 차지하고 있다. 본 논문에서는 이동시 편의를 주는 기술들과 자세의 편의를 주는 기술들에 대한 특허 동향을 조사하여 기술하였다. In order to enable an independent participate in productive activities and social activities for the disabled person or elderly, they need a various aids that be able to adapt living patterns tailored to public without obstacle. In the wheelchair sector, which plays an important role in the movement of patients and the elderly, using of electric wheelchairs are gradually increasing. In the basic electric wheelchair, there is a limit on aspect of the movement and position. Looking at the current status of the wheelchair-related patents, patents that given a variety of changes to the basic structure of the wheelchair occupies a considerable part. In this paper, we examine the patent trends in the technologies that ease of movement skills and attitude to the convenience.