Jong-Bok Byun

The ageing of the global population is creating a crisis in chronic disease management. In the USA, 29 million people (or 9.3% of the population) suffer from the chronic disease of diabetes; according to the WHO, globally around 200 million people are diabetic. Left unchecked, diabetes can lead to acute and long-term complications and ultimately death. Diabetes prevalence tends to be the highest among those aged 65 and older (nearly 20.6%), a population which often lacks the cognitive resources

Instant messaging is an application that enables networked users to send and receive short messages. Presence provides information about users' reachability and willingness to accept/reject a brief chat session. Various proprietary IM and presence (IM&P) solutions are currently on the market, and standards are emerging. There are interoperability problems between the two dominant standards (SIMPLE and XMPP); as a result, this important application is finding difficulty in widespread deployment w

California like the entire nation is aging. There are 4.3 million Californians 65 and older accounting for about 11% of the total state population. We also find that 58% of older adults have high blood pressure; about 21% have been told that they have diabetes. California in particular has the highest incidence of new diabetes cases and nearly 4 million people (diagnosed and undiagnosed) are estimated to be suffering from the disease. Diabetes is a chronic disease, which if unchecked leads to ac

In order to support emerging network businesses, such as Voice-over-IP (VoIP), virtual learning, video conferencing, and telemedicine, the Internet has to provide classes of service that are better than traditional 'best-effort' service.In computer networks, Quality of Service (QoS) is defined as the mechanisms that allow differentiation of network services based on their unique service requirements.To provide QoS over the current Internet, the Internet Engineering Task Force (IETF) and others h

온라인에서 발생하고 있는 젠더 혐오표현에 대한 기존 연구들 대부분은 법적규제 및 혐오의 대응 방안에 초점을 맞추고 있다. 본 연구에서는 젠더 이슈에 대한 뉴스 기사에 달린 댓글을 빅데이터의 텍스트마이닝 기법으로 분석하여 젠더 혐오표현의 변화양상을 파악하고자 하였다. 우리나라의 대표적인 포털사이트인 네이버와 다음에 게시된 보수 및 진보성향 신문 매체의 성차별 관련 기사에 달린 댓글을 분석한 결과, 젠더 혐오표현은 시간의 흐름에 따라 지속적으로 증가하고 있으며, 특정 젠더 이슈 발생 시 일시적으로 증가한 후 빠르게 감소하는 추세를 발견할 수 있었다. 이런 추세는 신문 매체의 정치적 성향과 무관했으나, 차별과 혐오표현에 대한 신고제를 운영하고 있는 다음의 경우 그렇지 않은 네이버에 비해 젠더 혐오표현의 수가 크게 적은 것을 확인하였다. 본 연구는 기존 연구에서 제시된 젠더 혐오표현의 변화양상을 실증적으로 분석하였으며, 흔히 방관자 혹은 게이트키퍼로 분류되는 포털사이트가 젠더 혐오표현을 줄

The entire telecommunications industry is going through very difficult times. Rapidly changing technology, lack of good business models, and lack of visibility in the near-term for renewed growth all create an uncertain environment. Yet, the global Internet is becoming a multi-service network infrastructure that can potentially replace existing disparate voice and data networks. Although it is widely believed in the telecommunications industry that network convergence of voice, data, video, and

Providing end-to-end (ETE) guarantees and quality-of-service to a diverse class of applications on the Internet has become the Holy Grail for networking researchers. As the growth of the Internet continues, service providers are facing interesting challenges that include: network design, engineering, pricing structures and business models that maximize profit. In this paper, we first present taxonomy of approaches to solving the ETE QOS problem. Most of these approaches are technical mechanisms

Online courses are popular in the United States. In particular, the Massive Open Online Courses (MOOCs) platform such as Coursera and edX are used to deliver online courses exclusively. Although these courses often do not provide any college level credits or degrees, scores of people have already joined the courses and finished them. Many schools are struggling to incorporate online modalities into their curricula. Often they do not have enough resources to develop and deliver the online courses

Students drop classes for many reasons. Some are personal such as medical conditions, family issues, or financial difficulties. Others are course specific such as course contents, instructor, or classmates. In either way, class drop is a serious problem to institutions because without students there will be no students learning. As a first step to understand students drops, this study will address the issue of students' behaviors in online classrooms.

It is essential to know the source IP address of a packet to prevent the IP spoofing attack which masquerades the sender's true identity. If there is a way to trace back the origin of the massive DDoS attacks, we could find the responsible parties of the incidents and prevent future attacks by blocking them. Unfortunately, the original TCP/IP stacks don't require the real source IP address to forward the packets to the destination. Malicious attackers can modify the source IP address to hide its

Generative artificial intelligence (AI) is increasingly integrated into sustainability-oriented entrepreneurial practices, raising important questions about its role in shaping human creativity and innovation. This qualitative study examines how postgraduate social entrepreneurship students engage with generative AI during the creativity phase of sustainable startup development. Drawing on Amabile’s componential theory of creativity, this study explores how AI is perceived to relate to domain-re

In order to support the delivery of emerging network services, such as Voice-over-IP (VoIP), teleconferencing, video conferencing, and telemedicine, the Internet must provide classes of service that are better than the traditional best-effort class of service commonly seen in low-bandwidth applications, such as e-mail. In computer networks, Quality of Service (QoS) is defined as the mechanisms that allow differentiation of traffic and services based on their requirements. To provide QoS over the