Understanding tourists5 local food consumption value according to socio-demographics

Ja Young,Seongseop 한국서비스디자인학회 2023 한국서비스디자인학회 학술대회자료집 Vol.2023 No.1

1인가구 생활패턴이 반영된 세탁O2O서비스 사용성 평가 연구 -런드리고와 세탁특공대를 중심으로-

정자영 ( Jeong¸ Ja Young ),장경국 ( Chang¸ Kyoung Kook ) 한국기초조형학회 2021 기초조형학연구 Vol.22 No.5

최근 1인가구 증가와 타임푸어족의 등장으로 세탁 O2O 서비스의 이용률이 높아지고 있다. 본 연구는, 세탁 O2O 서비스인 런드리고와 세탁특공대 애플리케이션을 중심으로 사용성 평가 비교분석을 통해 향후 20~30대 1인가구를 위한 세탁 O2O 서비스 사용성 개선을 위한 필요사항을 도출하고 의(衣)활동 이론 발전에도 기여하는데 목적이 있다. 연구방법으로는 1차로 문헌연구를 통해 1인가구의 현황, 라이프스타일, 세탁 O2O서비스의 시장 현황 및 전망 등을 고찰하였으며, 2차로 사용성 평가를 위해 피터모빌(Peter Morville)의 허니콤 모델(The Honeycomb Model) 7가지 요소를 기초하여 1인가구의 전체비율 중 가장 많은 비중을 차지하고 있는 20~30대 남녀를 대상으로 심층인터뷰를 진행 하였다. 사용성 평가 결과, 전체적으로 세탁특공대 앱의 서비스 사용성이 더 높은 것으로 나타났다. 특히 사용성, 가치성에 있어서는 1) 세탁물을 맡기고 수거하는 과정에 있어서 시간이 단축되는 점. 2) 출퇴근 시간에 제약 없이 사용가능한 점. 3) 빨래를 해야 하는 귀찮음을 해소했다는 점에 대하여 두 애플리케이션 모두 20~30대 1인가구 피실험자들에게 높은 평가를 받았다. 이러한 사용성 평가를 바탕으로 다음과 같은 개선점을 얻을 수 있었다. 첫째, 각 세탁 건별에 대한 평가와 업체에 대한 평가가 필요하다. 둘째, 그 평가에 따른 피드백 서비스가 필요하다. 셋째, 개인정보보호를 강화하여 신뢰성을 높여야 한다. 본 연구 결과를 통해 국내 세탁 O2O 서비스 향상에 기여하기를 기대하며, 향후 연구에서는 보다 폭넓은 1인가구의 연령층을 분석하여 1인가구의 의(衣)활동 발전에 기여할 수 있는 사용성 연구가 나오기를 기대한다. As the number of one-person households and the Timepoors has arisen in recent years, the utilisation rate of laundry O2O services is increasing. The purpose of this study is to derive the need to improve the usability of laundry O2O services for one-person households in their 20s and 30s and contribute to the development of clothing activity theory through comparative analysis of usability evaluation focused on the mobile application ‘Laundrygo’ and ‘Getwashswat’ application. A literature study examined the current status of one-person households, there’s lifestyle, market status and prospects of laundry O2O services. In addition, based on seven elements of Peter Morville's User Experience Honeycomb, an in-depth interview was conducted for those in their 20s and 30s, which account for the highest proportion of one-person households. As a result of the usability evaluation, the ‘Getwashswat’ application has higher service usability than ‘Laundrygo’. Especially in the field of usable and valuable, both applications received high scores from one-person households in their 20s and 30s for the following reasons : 1) Time reduction in the process of drop-off and collecting laundry. 2) Unlimited use during rush hour. 3) Hassle-Free from Laundry. Based on this usability assessment, the following improvement results were obtained through the data analysis : First, evaluation on the service supplier and laundry case is required. Second, feedback services according to the assessment are needed. Third, it is necessary to increase reliability by strengthening privacy. The results of this study are expected to lead to improving domestic laundry O2O services. In future studies, researcher hopes to analyse the whole age group of one-person households to contribute to the development of clothing activities in one-person households.

모바일 풀브라우징 브라우저 사용성 비교 연구

정자영(Jayoung Jung),이자영(Jayoung Lee),이재승(Jaeseung Lee) 한국HCI학회 2009 한국HCI학회 학술대회 Vol.2009 No.2

무선인터넷 기술발달로 대용량의 웹사이트를 휴대전화에 전송하는 것이 가능해지고 디스플레이도 3 인치 이상의 WVGA 고해상도 제품이 출시되고 있으며 망개방 이라는 시대적 요구와 맞물리면서 모바일 풀브라우저가 주목 받고 있다. 그러나, 유선 인터넷 환경의 웹사이트를 좁은 휴대전화 화면에 그대로 구현하여 사용하기란 쉽지 않다. 따라서, 본 연구는 모바일 풀브라우저의 현황을 살펴보고 사용성 검증을 통해 현재 서비스 환경에 최적화된 모바일 풀브라우저 UI 제안을 목적으로 한다. 이를 위해 국내외 주요 이동통신사의 풀브라우저에 적용된 공통적인 기본 UI 요소를 검토 하여 추출 하였다. 그 후 사용자 조사를 통해 추출된 기본 UI 요소들을 비교해 보고 각 기능의 중요도 및 기능 별 최적안을 도출하였다. 마지막으로 사용자 조사를 통해 검증된 이슈를 기반으로 향후 모바일 풀브라우저 인터페이스를 제안한다. 본 연구는 여러 모바일 풀브라우저의 기능별 방식에 대하여 사용자의 실제 경험을 통해 검증함으로써 향후 모바일 풀브라우저 개발에 있어 사용성을 향상 시키는 자료로 활용 될 수 있을 것이다.

Kinematics Analysis and Motion Planning For a 7-DOF Redundant Industrial Robot Manipulator

Jayoung Kim,Minyoung Sin,Jihong Lee 제어로봇시스템학회 2011 제어로봇시스템학회 국제학술대회 논문집 Vol.2011 No.10

This paper proposes application methods for utilizing a 7-DOF robot manipulator called YH050 in industrial settings. For finding an optimal method to solve the inverse kinematics problem, we propose three methods: numerical approach, geometrical approach and combined approach for inverse kinematics solution. Also, for efficient application of the robot in a work zone, we present motion planning to avoid singularities, obstacles, and to occupy minimal workspace. In this paper, these studies are theoretically explained and then experimentally verified.

Art and Morality of Communication: A Case Study of the Soviet Koreans

Jayoung Shin,김윤태,김현정 한국학중앙연구원 한국학중앙연구원 2008 Korea Journal Vol.48 No.3

This article examines what it means to be a Soviet Korean in Alma-Ata, Kaza-khstan. We argue that much of Korean cultural manifestation explicitly lies outside verbal expression, and hence, focusing on the implicit domain is important. As we understand that “Soviet Koreanness” is found in the way people acquire certain dispositions, sensitivities, and feelings, we have explored such diverse aspects as non-verbal expressions, sensorial experiences, and rules of expressing emotions. In doing so, we found that the perceptive dimension of being Korean is also formed in relation to this symbolic structure. This article finds a variation in the way the Soviet Koreans relate to and communicate with other people. This analysis explores the Korean emphasis on non-verbal and implicit forms of communication and examines their relationship with notions of personhood, morality, and ethnic identity. Finally, this article examines the making of “Koreanness” distinguished from that of “others,” especially Russians, in the context of communicating emotions and using words. This article examines what it means to be a Soviet Korean in Alma-Ata, Kaza-khstan. We argue that much of Korean cultural manifestation explicitly lies outside verbal expression, and hence, focusing on the implicit domain is important. As we understand that “Soviet Koreanness” is found in the way people acquire certain dispositions, sensitivities, and feelings, we have explored such diverse aspects as non-verbal expressions, sensorial experiences, and rules of expressing emotions. In doing so, we found that the perceptive dimension of being Korean is also formed in relation to this symbolic structure. This article finds a variation in the way the Soviet Koreans relate to and communicate with other people. This analysis explores the Korean emphasis on non-verbal and implicit forms of communication and examines their relationship with notions of personhood, morality, and ethnic identity. Finally, this article examines the making of “Koreanness” distinguished from that of “others,” especially Russians, in the context of communicating emotions and using words.

Real-time Estimation of Maximum Friction and Optimal Slip Ratio based on Material Identification for a Mobile Robot on Rough Terrain

Jayoung Kim,Jihong Lee 제어로봇시스템학회 2013 제어로봇시스템학회 국제학술대회 논문집 Vol.2013 No.10

This paper focuses on real-time estimation of optimal control parameters (maximum friction coefficient and optimal slip ratio) in order to secure maneuverability of a mobile robot on rough terrain. This paper is largely divided into two parts; 1) material identification, 2) estimation of optimal control parameters. Firstly, since maximum friction coefficient and optimal slip ratio indicate different characteristics depending on material types, prior to estimation of optimal control parameters, it is needed to identify which material a robot is moving on. Thus, this paper proposes a method for material identification based on soil resistance impeding motion of a robot. Material identification includes Gaussian classifier to stochastically identify one of the material types. Secondly, an estimator is developed so as to predict maximum friction coefficient and optimal slip ratio which are crucial parameters for a mobile robot while effectively traversing rough terrain. Friction-slip curves based on experimental data from a test for analysis of a wheel-terrain interaction are employed to make a prediction model for estimation of optimal control parameters. Results of material identification and estimation of optimal control parameters are verified through one-wheel driving experiments on three kinds of material types: sand, gravel and grass using the wheel-terrain interaction testbed.

Treatment outcome in patients with vulvar cancer : comparison of concurrent radiotherapy to postoperative radiotherapy

Jayoung Lee,Sung Hwan Kim,Giwon Kim,Mina Yu,Dong-Choon Park,Joo-Hee Yoon,Sei-Chul Yoon 대한방사선종양학회 2012 Radiation Oncology Journal Vol.30 No.1

Purpose: To evaluate outcome and morbidity in patients with vulvar cancer treated with radiotherapy, concurrent chemoradiotherapy or postoperative radiotherapy. Materials and Methods: The records of 24 patients treated with radiotherapy for vulvar cancer between July 1993 and September 2009 were retrospectively reviewed. All patients received once daily 1.8-4 Gy fractions external beam radiotherapy to median 51.2 Gy (range, 19.8 to 81.6 Gy) on pelvis and inguinal nodes. Seven patients were treated with primary concurrent chemoradiotherapy, one patient was treated with primary radiotherapy alone, four patients received palliative radiotherapy, and twelve patients were treated with postoperative radiotherapy. Results: Twenty patients were eligible for response evaluation. Response rate was 55% (11/20). The 5-year disease free survival was 42.2% and 5-year overall survival was 46.2%, respectively. Fifty percent (12/24) experienced with acute skin complications of grade III or more during radiotherapy. Late complications were found in 8 patients. 50% (6/12) of patients treated with lymph node dissection experienced severe late complications. One patient died of sepsis from lymphedema. However, only 16.6% (2/12) of patients treated with primary radiotherapy developed late complications. Conclusion: Outcome of patients with vulvar cancer treated with radiotherapy showed relatively good local control and low recurrence. Severe late toxicities remained higher in patients treated with both node dissection and radiotherapy.

Immune checkpoint blockade therapy for bladder cancer treatment

Jayoung Kim 대한비뇨의학회 2016 Investigative and Clinical Urology Vol.57 No.-

Bladder cancer remains the most immunogenic and expensive malignant tumor in the United States today. As the 4th leading cause of death from cancer in United States, Immunotherapy blocking immune checkpoints have been recently been applied to many aggressive cancers and changed interventions of urological cancers including advanced bladder cancer. The applied inhibition of PD-1–PD-L1 interactions can restore antitumor T-cell activity and enhance the cellular immune attack on antigens. The overall goals of this short review article are to introduce current cancer immunotherapy and immune checkpoint inhibitors, and to provide new insight into the underlying mechanisms that block immune checkpoints in tumor microenvironment. Furthermore, this review will address the preclinical and clinical trials to determine whether bladder cancer patients could benefit from this new cancer therapy in near future.

Do Women Really Fare Better When Working Part-time?

Jayoung Yoon 숙명여자대학교 아시아여성연구원 2010 Asian Women Vol.26 No.2

As married women enter the labor market and the traditional gender division of labor is being undermined, concerns with gender equality have been soaring in terms of the distribution of total work between men and women. In solving the difficulties of accommodating needs of employed married women, part-time employment is being promoted as a strategy enhancing labor force participation of married women with children. Part-time work may have positive effects of reducing the burden imposed on married women who manage both paid work and family responsibilities. This study purports to offer better understandings of whether female part-time employment helps women reduce their workload. This study takes advantage of a nationally representative time use survey collected in 2004. The analysis shows that had women not worked part-time, the gender gap in the total work would have been much greater, but that the gender gap still remains intact even if women’s part-time employment reduces the gap in the total work. And women’s part-time employment hardly affects women’s share of the total work out of the household total work within households. That is, holding other things constant, women who work part-time perform almost the same share of total work within households as do women working who work full-time. But the fact that the sign of the coefficient is positive implies that women who work part-time could undertake a higher share than women who work full-time.

The Prototype Development Applied as a Conceptual Design of an Automated Machine Learning System

Jayoung James Goo(구자영),Hyosung Kim(김효성) 한국정보과학회 2020 정보과학회 컴퓨팅의 실제 논문지 Vol.26 No.6

이 논문에서는 오픈소스기반의 자동화된 머신러닝시스템의 개념을 제안한다. 최근에 글로벌 소프트웨어 기업들이 쉽게 실행할 수 있는 자동화 머신러닝시스템을 개발하여 개발비용을 절감시키고 있다. 그러나 완전 자동화 머신러닝시스템은 아직 개발되지 않았다. 그리고 현존하는 자동화 머신러닝시스템은 반자동시스템으로 특정분야에 한정되어 적용되고 있다. 그러므로, 이 연구에서는 변수선택, 분석모델선택과 하이퍼파라미터튜닝의 전체 과정을 자동화시킬 수 있는 개념적 디자인이 적용된 프로토타입을 제안하고자 한다. 추가로 제안하는 프로토타입의 가능성을 가늠해 보기 위해, 실제 주식시장(KOSPI)의 종목을 선택하여 주가를 예측하는 파일럿테스트를 진행하였다. 향후에 이러한 개념은 자체적인 머신러닝시스템을 개발할 여력이 없는 중소기업에 크게 도움을 줄 것으로 기대한다. 더불어서 이 개념이 머신러닝에 대한 대중의 접근성을 향상시켜 머신러닝 대중화에 기여할 것으로 기대한다. In this paper, we propose the concept of a fully automated machine learning system based on an open-source. In recent years, automated machine learning systems have been developed by global software companies that can easily perform machine learning analysis while reducing the cost of developing the machine learning system. However, fully automated machine learning has not been developed. Additionally, existing systems are limited to specific fields. In this paper, we proposed a prototype that can automate the whole process of variable selection, model selection, and hyperparameter tuning. Also, to check the possibility that the prototype works reliably in real-market applications, we conducted stock price prediction pilot tests using the KOSPI stocks. In the near future, the concept can be applied to a variety of applications and will be of major benefit to small and medium-sized enterprises that cannot develop their data analysis models because of high development costs. Also, it is expected that this concept will improve accessibility to machine learning technology and contribute to the popularization of machine learning.