Kizito Nkurikiyeyezu

青山学院大学

Background Since the outbreak of COVID-19 pandemic in Rwanda, a vast amount of SARS-COV-2/COVID-19-related data have been collected including COVID-19 testing and hospital routine care data. Unfortunately, those data are fragmented in silos with different data structures or formats and cannot be used to improve understanding of the disease, monitor...

Thermal comfort is a state of mind in which one is satisfied with the thermal environment that is crucial to human well-being, safety, and productivity in everyday life. Indoor environmental thermal comfort levels usually change due to performing different activities in different situations. Computer systems that can understand these comfort indica...

Background: Since the outbreak of COVID-19 pandemic in Rwanda, a vast amount of SARS-COV-2/COVID-19-related data have been collected including COVID-19 testing and hospital routine care data. Unfortunately, those data are fragmented in silos with different data structures or formats and cannot be used to improve understanding of the disease, monito...

This paper presents the findings of a 6-week long, five-participant experiment in a controlled climate chamber. The experiment was designed to understand the effect of time on thermal behaviour, electrodermal activity (EDA) and the adaptive behavior of occupants in response to a thermal non-uniform indoor environment were continuously logged. The r...

Abstract—Africa accounts for 54% of the world disease burden due to lack of access to safe drinking water, with the majority of rural area populations or endemic zones getting access to water through potentially unsafe community tap waters. Unfortunately the expensive laboratory processes and resources used in water processing centers to detect wat...

Obesity and its numerous devastating consequences are on the rise globally. While widespread tactics to fight against obesity often focus on healthy eating, how the food is consumed is oftentimes overlooked even though convincing evidence attests that merely eating slowly and properly chewing one’s meal significantly reduces obesity. This research...

Even though it is well known that physical exercises have numerous emotional and physical health benefits, maintaining a regular exercise routine is quite challenging. Fortunately, there exist technologies that promote physical activity. Nonetheless, almost all of these technologies only target a narrow set of physical exercises (e.g., either runni...

Thermal comfort is an assessment of one's satisfaction with the surroundings; yet, most mechanisms that are used to provide thermal comfort are based on approaches that preclude physiological, psychological, and personal psychophysics that are precursors to thermal comfort. This leads to many people feeling either cold or hot in an environment that...

Even though it is well known that physical exercises have numerous emotional and physical health benefits, maintaining a regular exercise routine is quite challenging. Fortunately, there exist technologies that promote physical activity. Nonetheless, almost all of these technologies only target a narrow set of physical activities (e.g., either runn...

In office spaces, the ratio of energy consumption of air conditioning and lighting for maintaining the environment comfort is about 70%. On the other hand, many people claim being dissatisfied with the temperature of the air conditioning. Therefore, there is concern about work efficiency reduction caused by the current air conditioning control. In...

Because stress is subjective and is expressed differently from one person to another, generic stress prediction models (i.e., models that predict the stress of any person) perform crudely. Only person-specific ones (i.e., models that predict the stress of a preordained person) yield reliable predictions, but they are not adaptable and costly to dep...

In office spaces, the ratio of energy consumption of air conditioning and lighting for maintaining the environment comfort is about 70%. On the other hand, many people claim being dissatisfied with the temperature of the air conditioning. Therefore, there is concern about work efficiency reduction caused by the current air conditioning control. In...

Thermal comfort is a personal assessment of one's satisfaction with the surroundings. Yet, most thermal comfort delivery mechanisms preclude physiological and psychological precursors to thermal comfort. Accordingly, many people feel either cold or hot in an environment that is supposedly thermally comfortable to most people. To address this issue,...

Because stress is subjective and is expressed differently from one person to another, generic stress prediction models (i.e., models that predict the stress of any person) perform crudely. Only person-specific ones (i.e., models that predict the stress of a preordained person) yield reliable predictions, but they are not adaptable and costly to dep...

Predominant thermal comfort provision technologies are energy-hungry, and yet they perform crudely because they overlook the requisite precursors to thermal comfort. They also fail to exclusively cool or heat the parts of the body (e.g., the wrist, the feet, and the head) that influence the most a person's thermal comfort satisfaction. Instead, the...

Because stress is subjective and is expressed differently from one person to another, generic stress prediction models (i.e., models that predict the stress of any person) perform crudely. Only person-specific ones (i.e., models that predict the stress of a preordained person) yield reliable predictions, but they are not adaptable and costly to dep...

In office-occupied spaces, the ratio of energy consumption by airconditioning and lighting that maintains the environment comfort accounts for about 70%. On the other hand, many people claim being dissatisfied with the temperature of the air conditioning. Therefore, there is concern about the work efficiency reduction caused by current aircondition...

Stress is well-researched. Still, despite the potential economic and health benefits of a system that continuously monitor people's stress, there exists no mainstream real-world stress monitoring system. The most reliable methods use a fusion of multi-modal signals. However, these methods are both obtrusive and privacy-invasive. On the contrary, th...

Stress is well-researched. Still, despite the potential economic and health benefits of a system that continuously monitor people's stress, there exists no mainstream real-world stress monitoring system. The most reliable methods use a fusion of multi-modal signals. However, these methods are both obtrusive and privacy-invasive. On the contrary, th...

Prevailing mechanisms that deliver thermal comfort in workplaces are energy-hungry and yet provide a sub-optimal thermal comfort. Indeed, they are based on flawed premises and purposely ignore decisive precursors to thermal comfort. This research proposes to estimate a person's thermal comfort level from the fluctuations in his physiological signal...

Work stress and thermal discomfort are some of the hurdles that office workers face every day. Office workers experience a periodic work stress because work is long and mentally challenging. At the same time, current thermal comfort provision technologies are inefficient and consume a large amount of energy. In our previous works, we proposed an ef...

Today in Japan, comfortable lifestyle and environment realized by abundant electric power is being questioned by energy consumption reduction policies called "cool biz" in summer, and "warm biz" in winter. One reason for these policies is the bad energy consumption efficiency of current air conditioning systems that cool or warm indirectly human bo...

Nowadays many people rely on smartphones in their daily lives for chatting in SNS, voice communications, searching for shopping information, and watching video contents, etc.. We tried to predict the used application on a smartphone based on Call Detail Records (CDRs) in our previous work[2]. However, we have found that classification of small mess...

Thermal comfort is an assessment of one's satisfaction with the surroundings; yet, most mechanisms that are used to provide thermal comfort are based on approaches that preclude physiological, psychological and personal psychophysics that are precursors to thermal comfort. This leads to many people feeling either cold or hot in an environment that...

Today in Japan, comfortable lifestyle and environment realized by abundant electric power is being questioned by energy consumption reduction policies called “cool biz” in summer, and “warm biz” in winter. One reason of these policies is the bad energy consumption efficiency of current air-conditioning systems that cool or warm indirectly human bod...

Despite their high energy consumption, office thermal comfort delivery mechanisms perform poorly. The recently enacted environmental protection policies, which require a significant cutback in greenhouse gas emission, can only exacerbate this situation because, given the limitations of current thermal comfort provision technologies, a reduction in...

Thermal comfort is, by definition, a psychological sensation. Yet,the provision of thermal comfort in office environments relies on Heating Ventilation and Air Conditioning (HVAC) systems that exclude people’s personal preferences. This study provides a preliminary evaluation of a physiologically controlled thermal comfort provision based on the Pu...

Thermal comfort is, by definition, a personal and subjective psychological sensation. Still, its provision in office buildings relies on underperforming and energyhungry Heating Ventilation and Air Conditioning (HVAC) units that preclude people’s personal preferences. This leads to people reporting a high discontent with the built environment. This...

Le confort thermique dans les bâtiments est assuré par des systèmes de chauffage, ventilation et climatisation (CVC) qui, malgré leur consommation d'énergie élevée, fournissent un confort thermique médiocre. Les CVC sont, en effet, basés sur des modèles thermiques qui exigent des températures d'air intérieur rigoureusement étroites pour fournir un...

Despite their high energy consumption, office thermal comfort delivery mechanisms perform poorly. The recently enacted environmental protection policies, which require a significant cutback in greenhouse gas emission, can only exacerbate this situation because, given the limitations of current thermal comfort provision technologies, a reduction in...