Abstract Fine needle aspiration (FNA) is the procedure of choice for evaluating thyroid nodules. It indicated nodules >2 cm, even in cases very low suspicion malignancy. FNA has associated risks and expenses. In this study, we developed an image analysis model using a deep learning algorithm evaluated if could predict with benign results. Ultrasonographic images cytologic or histologic results were retrospectively collected. For training, 1358 (670 benign, 688 malignant) nodule input into...

Personal health record (PHR)-based care management systems can improve patient engagement and data-driven medical diagnosis in a clinical setting.

Background: Although using the technologies for a variety of chronic health conditions such as personal record (PHR) is reported to be acceptable and useful, there lack evidence on associations between use change outcome patients' response digital app. Objective: This study aimed examine impact PHR wearables improvement sustained app that can associated with patient engagement. Methods: We developed an Android-based mobile phone used wristband-type activity tracker (Samsung Charm) collect...

Due to the prevalence of personal health tracking, cases self-logged data being utilized in clinic are gradually increasing. However, obstacles clinicians' ability further adopt such data-driven medical consultations existing workflow remain, as lack time and poor interoperability. In this paper, we conducted a workshop design clinician interface supporting integration consultation into investigate role situ. After implementing designed based on results, observed 32 actual use within...

As teen stress and its negative consequences are on the rise, several studies have attempted to tend their emotional needs through conversational agents (CAs). However, these attempts focused increasing human-like traits of agents, thereby overlooking possible advantage machine inherits, such as lack emotion or ability perform calculations. Therefore, this paper aims shed light inherits CAs help satisfy teenagers. We conducted a workshop with 20 teenagers, followed by in-depth interviews six...

By enabling people to track their lifestyles, including activity level, sleeping, and diet, technology helps clinicians treat patients suffering from "lifestyle diseases." However, despite its importance compared other lifestyle factors, it is not easy record food intake consistently. Although researchers have attempted solve this problem, most considered applicability in the clinical context. In paper, we aim (1) understand food-journaling practices (2) explore of data observing 20 who...

As smartphones can handle work and leisure activities simultaneously, cyberslacking the collapse of work-life balance are causing social problems. Hence, in this study we analyzed users' smartphone usage behavior transition pattern between non-work behaviors using log data collected automatically from an actual site. The were divided into four types sessions according to work-related characteristics. No significant difference was found frequency, time, or app type conditions. Additionally,...

To investigate the short-term effects of a lifestyle modification intervention based on mobile application (app) linked to hospital electronic medical record (EMR) system weight reduction and obstructive sleep apnea (OSA).We prospectively enrolled adults (aged >20 years) with witnessed snoring or from clinic. The patients were randomized into app user (n=24) control (n=23) groups. was designed collect daily data by wearing wrist activity tracker reporting dietary intake. A summary displayed...

Doing interviews is one of the most frequently used methods for qualitative research in human-computer interaction(HCI) field. Tools doing have changed with technological development. Mobile phones become main media recently. We explored possibility using mobile instant messaging(MIM) as an interviewing tool. Phones and messengers(IM) were compared to find characteristics messengers. found there was some spare time facilitating interview while other typing. It also that expressing context...

In this study, we suggest an enhanced smart TV logging system composed of a TV, smartphone, and watch. It can be used to research the audience's complicated segmented behaviors while watching TV. We designed prototype system, which not only detect whether viewers are located in TV-viewing area but also measure their movements activities by analyzing beacon signals sensor data from conducted technical evaluation verify its fidelity performance, user study identified what factors affect users'...

The rise of small, IoT-related devices and sensors have enabled us to sense collect data than ever before. In this study, we walk through our attempt a data-driven approach in collecting behavioral on television viewing, an activity thought as passive habitual. We conducted 14 day experiment with 13 households the wild using logger installed at each house. Television-related IR log IPTV packets, contextual Bluetooth signal brightness are collected logger. is supplemented by qualitative...

This paper presents an unobtrusive, low cost, light weight and easy to install laser sensor based method for door people counting system. The system employed two paired sensors on doors of one laboratory connected Intel Edison board. have the capacity detect entering/exiting doors. board computes number sensing directions using algorithm. application algorithm is developed python programing language. provided fairly accurate results under different scenarios with best scenario 95.3%. tested...

Since the COVID-19 pandemic, video conferencing platforms have given rise to new virtual activities, such as study rooms where users utilize share ambient presence for motivation. In rooms, it can be challenging determine what reveal and hide on camera, needs strongly convey their without revealing more than necessary. this paper, we investigate conflicting of room well methods they employ cope with these using videos. To end, conducted a three-step qualitative study. The first involved...

In this paper, a smart TV logging system comprising beacon and smartphones is proposed. To investigate the feasibility of our strategy, we designed implemented prototype conducted trial study. The study results show that can unobtrusively capture viewers' various events embedded in viewing behavior. also suggest proposed method allows more robust accurate data to be collected than do behavior analysis approaches used existing qualitative research studies, such as surveys interviews.

Travel is a series of micro activities. With the proliferation digital cameras and smartphones, it now common for travelers to record their activities in fine detail by taking photos without ever missing moment. However, how enhance travel experience utilizing such recorded has not been determined. Thus, we aim 1) investigate through user study 2) design system experiences photos. Based on study, devise "questification" strategy that motivates change into quests. We implement research...

In the Korean entertainment industry, there exists `photaku' -a particular group of fans who take photos and videos their favorite celebrities distribute them online. To find out structures activities, we used a multi-method approach using in-depth interviews, offline observation, social media analysis. Our findings demonstrate that photaku engage in four types unique activities: one main activity to three secondary strengthening competitiveness, supporting monetization.

현재 피트니스 트래커(fitness tracker)시장은 유산소 운동에만 초점을 맞춰 근력 운동 분야는 상대적으로 소외되어 있다. 최근 트래커가 소수 출시되고 있으나, 상황에 대한 고려가 부족하여 사람-기기 간 인터랙션에 불편함을 초래한다. 특히, 중에는 신체의 움직임이 활발하므로, 손으로 기기를 휴대하거나 조작하는 상황은 사용자에게 부정적 경험을 유발한다. 웨어러블 디바이스는 항시적인 착용이 가능하므로, 손과 발의 사용이 자유로워 중 피드백 제공에 효과적이다. 따라서, 이 연구에서는 디바이스를 통해 피드백을 감각하게 함으로써, 수행자가 효과적인 운동을 할 수 있도록 하는 것을 목적으로 한다. 다음 세 가지 연구 문제를 검증하였다. 1) 상황에서 필요한 정보는 무엇인가? 2) 중, 어떤 감각 피드백이 선호되는가? 3) 피드백의 가치는 그 결과, 첫째, 수행자는 단계 ‘운동 중’에 해당하는 정보가 가장 필요하다고 하였으며 ‘페이스 조절(횟수 카운팅, 동기 부여)’과 ‘자세...

Many companies are focusing on remote working since the Covid-19 pandemic. One difference between environment and face-to-face setting is absence of natural awareness, which promotes social interaction helps coordination work flow. To maintain benefits awareness in a environment, it important to first understand information workers disclose need for awareness. In this paper, we aim investigate disclosed needed, provide insights mitigate two. We conducted case study with an actual workgroup...

A user's ownership perception of virtual objects, such as cloud files, is generally uncertain. Is this valid for streaming platforms featuring accounts designed sharing (DS)? We observe practices within DS and identify their characteristics unexpected complications through two mixed-method studies. Casual Cost-splitting are the identified. The owner sole payer account in former, whereas profile holders split cost latter. distinguish types each practice—Primary Dual. In Primary ownership, has...

최근 헬스케어 분야에서 지속적인 건강 관리 서비스를 제공하기 위해 챗봇 에이전트를 도입하는 시도가 늘어나고 있다. 하지만 아직까지 에이전트 설계에 대한 연구는 인간과 기계라는 구분에 머물러 있어, 에이전트에 신뢰, 친밀감, 행동 변화를 모두 고려해야 하는 영역에서의 활용하기에는 한계가 따라서 본 연구에서는 구분에서 나아가, 보다 다양한 정체성에 따라 사용자의 인식과 행동이 달라지는지 조사하고자 했다. 이를 정체성을 다르게 설정한 3개의 에이전트인 의사(개인), 병원(기관), 가상 에이전트(기계)를 제작한 후, 집단 간 설계(between-group design) 방식으로 36명의 사용자를 세 그룹으로 나누어 6일간 챗봇을 사용하며 습관을 기록하도록 하였다. 6일간의 사용을 마친 사후 설문 및 인터뷰를 통하여 사용자들의 개선에 어떤 영향이 있었는지 살펴보았다. 그 결과 의사와 병원 에이전트는 건강지키미 에이전트보다 높은 신뢰를 보였으며, 친밀감에 있어서도 더욱 평가를 받았다....

AI and deep learning have enabled development of voice agents (VAs) conversational (CAs) for more varied uses, including audio journaling which requires longer, nuanced conversations. Current technology is capable utilizing additional data, but VAs still remain limited to single-turn, task-oriented interactions. In this study, we investigate whether current turn-taking system suitable interactions with long speech in the form journaling, suggest ways that would make appropriate handle longer...

In light of the enduring success music streaming services, it is noteworthy that an increasing number users are positively gravitating toward YouTube as their preferred platform for listening to music. differs from typical services in they provide a diverse range music-related videos well soundtracks. However, despite popularity using consumption, there still lack comprehensive research on this phenomenon. As independent researchers unaffiliated with YouTube, we conducted semi-structured...

The spread of smartphone has enabled everyone to easily participate in information activities regardless time and space. interiors cars are not an exception this phenomenon. Many drivers use their while driving, though it is legally restricted due safety issues. This research intends (1) observe the behaviors (2) classify (3) finally induce design implications. For purpose, we conducted user using in-car monitoring system observing situ (Figure 1) a application usage tracker. After gathering...