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Scalable Power Impact Prediction of Mobile Sensing Applications at Pre-Installation Time
Chulhong Min;Youngki Lee;Chungkuk Yoo;Inseok Hwang;Younghyun Ju;Junehwa Song;Seungwoo Kang
Today's smartphone application (hereinafter `app') markets do not provide information on power consumption of apps, which is essential for users. Continuous sensing apps make this problem more severe because significant power is consumed without the users' awareness. We propose PowerForecaster to break through such an exhaustive cycle. It provides users with personalized estimation of sensing apps...Show More
A System to Analyze Group Socializing Behaviors in Social Parties
Hyukjae Jang;Sungwon P. Choe;Simon N. B. Gunkel;Seungwoo Kang;Junehwa Song
Social events such as networking parties are excellent opportunities to expand one's social network and make new social ties, as well as simply have fun and enjoy oneself. With the emergence of pervasive technology, we now have the opportunity to discover face-to-face socializing behaviors of individual guests and support them in their socializing goals. Quantitative measures of socializing behavi...Show More
Understanding stability of rate control schemes on dynamic communication networks
Saumay Pushp;Priya Ranjan;Malay Ranjan Tripathy;Junehwa Song
2016 Progress in Electromagnetic Research Symposium (PIERS)
Year: 2016 | Conference Paper |
Cited by: Papers (1)
Questions of rate control on dynamic networks have been open due to lack of rigorous tools in applied Mathematics regarding dynamic networks. Recent developments in theoretical modeling of dynamic networks pave the way for new insights in better understanding of rate control on dynamic networks in general and processes on dynamic networks in particular. Making further progress on our earlier work ...Show More
CoMon+: A Cooperative Context Monitoring System for Multi-Device Personal Sensing Environments
Youngki Lee;Seungwoo Kang;Chulhong Min;Younghyun Ju;Inseok Hwang;Junehwa Song
Continuous mobile sensing applications are emerging. Despite their usefulness, their real-world adoption has been slow. Many users are turned away by the drastic battery drain caused by continuous sensing and processing. In this paper, we propose CoMon+, a novel cooperative context monitoring system, which addresses the energy problem through opportunistic cooperation among nearby users. For effec...Show More
Multi-player gaming in public transport crowd: Opportunities and challenges
2014 IEEE World Forum on Internet of Things (WF-IoT)
Year: 2014 | Conference Paper |
Cited by: Papers (2)
Smart devices are supporting emerging types of location-based gaming applications to attain collaborations among collocated users in public places like transports. However, they are facing many challenges like the timely performance of back-end game servers for runtime game operation, unreliable cellular network connections, and opportunistic and dynamic local environment. To address these limitat...Show More
An Active Resource Orchestration Framework for PAN-Scale, Sensor-Rich Environments
Youngki Lee;Chulhong Min;Younghyun Ju;Seungwoo Kang;Yunseok Rhee;Junehwa Song
In this paper, we present Orchestrator, an active resource orchestration framework for a PAN-scale sensor-rich mobile computing platform. Incorporating diverse sensing devices connected to a mobile phone, the platform will serve as a common base to accommodate personal context-aware applications. A major challenge for the platform is to simultaneously support concurrent applications requiring cont...Show More
Disputant Relation-Based Classification for Contrasting Opposing Views of Contentious News Issues
Contentious news issues, such as the health care reform debate, draw much interest from the public; however, it is not simple for an ordinary user to search and contrast the opposing arguments and have a comprehensive understanding of the issues. Providing a classified view of the opposing views of the issues can help readers easily understand the issue from multiple perspectives. We present a dis...Show More
MobiCon: Mobile context monitoring platform: Incorporating context-awareness to smartphone-centric personal sensor networks
Youngki Lee;Younghyun Ju;Chulhong Min;Jihyun Yu;Junehwa Song
2012 9th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks (SECON)
Year: 2012 | Conference Paper |
In this demonstration, we will show MobiCon, a context monitoring platform; it runs over smartphones and sensor OSs, and facilitates development and deployment of everyday context-aware applications. For many years, lots of research efforts have been made in building low-cost, yet effective sensor networks for various application domains such as structural health monitoring of bridges, disaster re...Show More
An efficient dataflow execution method for mobile context monitoring applications
Younghyun Ju;Chulhong Min;Youngki Lee;Jihyun Yu;Junehwa Song
2012 IEEE International Conference on Pervasive Computing and Communications
Year: 2012 | Conference Paper |
In this paper, we propose a novel efficient dataflow execution method for mobile context monitoring applications. As a key approach to minimize the execution overhead, we propose a new dataflow execution model, producer-oriented model. Compared to the conventional consumer-oriented model adopted in stream processing engines, our model significantly reduces execution overhead to process context mon...Show More
Scalable Activity-Travel Pattern Monitoring Framework for Large-Scale City Environment
Youngki Lee;SangJeong Lee;Byoungjip Kim;Jungwoo Kim;Yunseok Rhee;Junehwa Song
In this paper, we introduce Activity Travel Pattern (ATP) monitoring in a large-scale city environment. ATP represents where city residents and vehicles stay and how they travel around in a complex megacity. Monitoring ATP will incubate new types of value-added services such as predictive mobile advertisement, demand forecasting for urban stores, and adaptive transportation scheduling. To enable A...Show More
MovieCommenter: Aspect-based collaborative filtering by utilizing user comments
7th International Conference on Collaborative Computing: Networking, Applications and Worksharing (CollaborateCom)
Year: 2011 | Conference Paper |
Collaborative filtering relies on numerical ratings for recommendations. While users consider various aspects of content as a basis of their evaluation, a numeric rating provides only an aggregated report of final assessment. The performance of a collaborative recommender system could be enhanced if the ratings are augmented by more specific information used for evaluation. In this paper, we prese...Show More
A mobile context monitoring platform for pervasive computing environments
Youngki Lee;Chulhong Min;Younghyun Ju;Saumay Pushp;Junehwa Song
5th IEEE International Conference on Digital Ecosystems and Technologies (IEEE DEST 2011)
Year: 2011 | Conference Paper |
In this paper, we present a new mobile platform to support emerging pervasive applications in a Personal Area Network (PAN)-scale dynamic mobile computing environment. The PAN-scale computing environment will constitute an important part of future pervasive-space technology with highly proactive applications, requiring continuous monitoring of users' contexts. The context-aware applications impose...Show More
Design and Implementation of a Middleware for Development and Provision of Stream-Based Services
Seungwoo Kang;Youngki Lee;Sunghwan Ihm;Souneil Park;Su-Myeon Kim;Junehwa Song
2010 IEEE 34th Annual Computer Software and Applications Conference
Year: 2010 | Conference Paper |
Cited by: Papers (3)
This paper proposes MISSA, a novel middleware to facilitate the development and provision of stream-based services in emerging pervasive environments. The stream-based services utilize voluminous and continuously updated data streams as their input. The characteristics of data streams bring new requirements on the development and provision of the services. To satisfy the requirements, a unique ser...Show More
A Scalable and Efficient Path Management Scheme for Internet-Based Sensor Data Delivery Infrastructure
Kyungmin Cho;Younghyun Ju;Sungjae Jo;Yunseok Rhee;Junehwa Song
2010 IEEE 34th Annual Computer Software and Applications Conference
Year: 2010 | Conference Paper |
Cited by: Papers (1)
In upcoming ubiquitous environment, many real-time sensing applications will emerge. These applications show different scale and characteristics on delivery demands. The applications commonly depend on real-time understanding on data from widely distributed data sources. Also, they have highly diverse and complex delivery demands in terms of data and delay, e.g., data value ranges of interest, spa...Show More
Orchestrator: An active resource orchestration framework for mobile context monitoring in sensor-rich mobile environments
Seungwoo Kang;Youngki Lee;Chulhong Min;Younghyun Ju;Taiwoo Park;Jinwon Lee;Yunseok Rhee;Junehwa Song
2010 IEEE International Conference on Pervasive Computing and Communications (PerCom)
Year: 2010 | Conference Paper |
In this paper, we present Orchestrator, an active resource orchestration framework for mobile context monitoring. Emerging pervasive environments will introduce a PAN-scale sensor-rich mobile platform consisting of a mobile device and many wearable and space-embedded sensors. In such environments, it is challenging to enable multiple context-aware applications requiring continuous context monitori...Show More
A Scalable and Energy-Efficient Context Monitoring Framework for Mobile Personal Sensor Networks
Seungwoo Kang;Jinwon Lee;Hyukjae Jang;Youngki Lee;Souneil Park;Junehwa Song
The key feature of many emerging pervasive computing applications is to proactively provide services to mobile individuals. One major challenge in providing users with proactive services lies in continuously monitoring users' context based on numerous sensors in their PAN/BAN environments. The context monitoring in such environments imposes heavy workloads on mobile devices and sensor nodes with l...Show More
R4: Towards a holistic framework for designing and developing Social Web Applications
2009 5th International Conference on Collaborative Computing: Networking, Applications and Worksharing
Year: 2009 | Conference Paper |
Cited by: Papers (1)
Social Web Application (SWA) design and development is a complex process that requires the understanding and coordination of several domains of knowledge. Yet there remain few if any holistic frameworks to manage this process. In this paper we present such a framework, R4. It coordinates and relates the different perspectives that inform the entire SWA design and development process. We base R4 on...Show More
BMQ-Processor: A High-Performance Border-Crossing Event Detection Framework for Large-Scale Monitoring Applications
Jinwon Lee;Seungwoo Kang;Youngki Lee;Sang Jeong Lee;Junehwa Song
In this paper, we present BMQ-Processor, a high-performance border-crossing event (BCE) detection framework for large-scale monitoring applications. We first characterize a new query semantics, namely, border monitoring query (BMQ), which is useful for BCE detection in many monitoring applications. It monitors the values of data streams and reports them only when data streams cross the borders of ...Show More
HiCon: a hierarchical context monitoring and composition framework for next-generation context-aware services
Kyungmin Cho;Inseok Hwang;Seungwoo Kang;Byoungjip Kim;Jinwon Lee;Sangjeong Lee;Souneil Park;Junehwa Song;Yunseok Rhee
This article presents a hierarchical context monitoring and composition framework that effectively supports next-generation context-aware services. The upcoming ubiquitous space will be covered with innumerable sensors and tiny devices, which ceaselessly pump out a huge volume of data. This data gives us an opportunity for numerous proactive and intelligent services. The services require extensive...Show More
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