Search results for: Yongtae Park

Items from 1 to 20 out of 114 results

article

Leveraging ideas from user innovation communities: using text‐mining and case‐based reasoning

Jieun Kim, Yongtae Park

User innovation communities, where end users voluntarily share their ideas about new products or services, have become an important source of innovation. While efforts have been made to extract and develop ideas from these sources, existing studies have largely focused on company‐led efforts to facilitate user participation, rather than on voluntary user discussions within communities themselves....

article

Predicting the degree of interdisciplinarity in academic fields: the case of nanotechnology

Wooseok Jang, Heeyeul Kwon, Yongtae Park, Hakyeon Lee

Scientometrics > 2018 > 116 > 1 > 231-254

With today’s technological advances and uncertainty, interdisciplinary research (IDR) is recognized as the core element for an advancement not only in academic realms but also in non-academic worlds. Conventionally, the concept of interdisciplinarity has been measured indirectly through using historical data and estimating how frequently the knowledge is exchanged among various disciplinary fields...

article

Identifying and structuring service functions of mobile applications in Google’s Android Market

Yongyoon Suh, Yongtae Park

Information Systems and e-Business Management > 2018 > 16 > 2 > 383-406

Recently, mobile applications are considered one of the most opportune issues in mobile industry since the explosive growth of mobile applications has generated the myriad of service functions. In response, it is needed to extract useful information on dominant service functions and structural relationship among the service functions. However, there have been few methods for encapsulating information...

article

Identifying dynamic knowledge flow patterns of business method patents with a hidden Markov model

Yoonjung An, Mintak Han, Yongtae Park

Scientometrics > 2017 > 113 > 2 > 783-802

As an alternative to the conventional R&D innovation, business models are becoming an important locus of lucrative innovation. Due to the rise of the internet economy, business model innovation today often involves technological innovation, and this can be evidenced by business method (BM) patents. Of several mechanisms that stimulate business model innovation, the role of BM patents is probably...

article

Overcoming IoT Language Barriers Using Smartphone SDRs

Yongtae Park, Seungho Kuk, Inhye Kang, Hyogon Kim

IEEE Transactions on Mobile Computing > 2017 > 16 > 3 > 816 - 828

In the Internet of Things (IoT) era, smartphones are expected to frequently interact with IoT devices and even facilitate various IoT applications. Due to limited roles, energy constraints, etc., however, IoT devices may use mission-tailored or proprietary wireless protocols that smartphones do not speak natively. In this paper, we propose a novel approach to the wireless “language barrier” problem...

article

Applying LSA text mining technique in envisioning social impacts of emerging technologies: The case of drone technology

Heeyeul Kwon, Jieun Kim, Yongtae Park

Technovation > 2017 > 60-61 > C > 15-28

This research proposes a novel method of identifying and understanding the holistic overview of emerging technologies’ unintended consequences. Latent Semantic Analysis (LSA) text mining technique is employed to yield multiple groups of contextually similar terms from future-oriented data sources, comprising both experts’ and the public's concerns regarding future technologies. Resulting term clusters...

article

Development of a service evolution map for service design through application of text mining to service documents

Bomi Song, Byungun Yoon, Changyong Lee, Yongtae Park

Research in Engineering Design > 2017 > 28 > 2 > 251-273

As digital convergence has proliferated and products have become smarter, various service concepts have emerged based on the capabilities of products. It has become a main concern to illuminate historical changes and status of service concepts according to the utilisation of product elements to provide valuable information for service development. However, a lacuna still remains in the literature...

article

How to generate creative ideas for innovation: a hybrid approach of WordNet and morphological analysis

Youngjung Geum, Yongtae Park

Technological Forecasting and Social Change > 2016 > 111 > C > 176-187

A creative ideation process occupies a substantial part of the innovation process. Among many techniques for ideation, morphology analysis has been employed as a prevalent method, whose success is critically affected by its dimensions and values. Despite the gravity of determining dimensions and values, previous literature has been simply subject to manual construction by some experts, which leads...

article

Futuristic data-driven scenario building: Incorporating text mining and fuzzy association rule mining into fuzzy cognitive map

Jieun Kim, Mintak Han, Youngjo Lee, Yongtae Park

Expert Systems with Applications > 2016 > 57 > C > 311-323

Fuzzy cognitive maps (FCMs) are one of the representative techniques in developing scenarios that include future concepts and issues, as well as their causal relationships. The technique, initially dependent on deductive modeling of expert knowledge, suffered from inherent limitations of scope and subjectivity; though this lack has been partially addressed by the recent emergence of inductive modeling,...

article

Orai1 mediates osteogenic differentiation via BMP signaling pathway in bone marrow mesenchymal stem cells

Sung Hee Lee, Yongtae Park, Minju Song, Sonal Srikanth, more

Biochemical and Biophysical Research Communications > 2016 > 473 > 4 > 1309-1314

Orai1 is a pore-subunit of store-operated Ca²⁺ release-activated Ca²⁺ (CRAC) channel that mediates Ca²⁺ influx in most non-excitable cells via store-operated Ca²⁺ entry (SOCE) mechanism. We previously demonstrated that Orai1 is involved in mediating osteogenic potential of mesenchymal stem cells (MSCs), but the underlying mechanism of this function remains unknown. Here, we report that Orai1 mediates...

article

Evaluation of e-commerce websites using fuzzy hierarchical TOPSIS based on E-S-QUAL

Daekook Kang, Wooseok Jang, Yongtae Park

Applied Soft Computing > 2016 > 42 > C > 53-65

In the wake of the rapid emergence of e-commerce, its evaluation is of great theoretical and practical importance. Among the various types of e-commerce, business-to-consumer (B2C) e-commerce has become a key, and especially influential, retailing channel. Its ascendancy raises core issues with respect to how the customer is to be satisfied by, and therefore inclined to trust, e-commerce websites...

chapter

User-Specific Service Generation: A Morphological Approach to Customized Blog Creation

Namjoong Kim, Hyojeong Lim, Sookyeong Seo, Yoo Suk Hong, more

Lecture Notes in Computer Science > Usability and Internationalization. Global and Local User Interfaces > Part II: Enhancing and Personalizing the User Experience > 407-416

As the growth of service industry, new service creation has become as important as traditional view on new product development. It is particularly recognized that users want customized services for their intention. This study weighs blog-service characteristics (functions) based on user intentions and suggests a new service design method to combine functional levels among the existing blog service...

article

Geographic scheduling of directional transmission for periodic safety messages in IEEE WAVE

Byungjo Kim, Jihun Ha, Inhye Kang, Yongtae Park, more

Computer Communications > 2016 > 78 > C > 1-15

It is typically assumed that safety communication will use omnidirectional broadcast in vehicle-to-vehicle environments. However, in the IEEE Wireless Access in Vehicular Environment standard, some safety application messages will have directional semantics. For example, messages in the cooperative adaptive cruise control application are relevant to vehicles following the transmitter. In this paper,...

article

A patent portfolio-based approach for assessing potential R&D partners: An application of the Shapley value

Bomi Song, Hyeonju Seol, Yongtae Park

Technological Forecasting and Social Change > 2016 > 103 > C > 156-165

We propose a patent portfolio-based approach for assessing potential R&D partners that can consider the inter-partner resource fit in the assessment process. The concept of an integrated patent portfolio is suggested and its value is designed to reflect the resource fit between potential R&D partners. The Shapley value is applied to assess the contribution of each potential partner to the...

article

Exploring the intellectual structure of nanoscience and nanotechnology: journal citation network analysis

Haejin Jo, Yongtae Park, Sarah Eunkyung Kim, Hakyeon Lee

Journal of Nanoparticle Research > 2016 > 18 > 6 > 1-21

Understanding the research trends and intellectual structure of nanoscience and nanotechnology (nano) is important for governments as well as researchers. This paper investigates the intellectual structure of nano field and explores its interdisciplinary characteristics through journal citation networks. The nano journal network, where 41 journals are nodes and citation among the journals are links,...

article

A dynamic feasibility analysis of public investment projects: An integrated approach using system dynamics and agent-based modeling

Haejin Jo, Hakyeon Lee, Yongyoon Suh, Jieun Kim, more

International Journal of Project Management > 2015 > 33 > 8 > 1863-1876

Increasingly, public sector investment projects face a dynamic environment that incorporates both macroscopic system and microscopic individuals. Prior attempts to analyze the feasibility of those projects, however, have been subject to limitations in accommodating such environmental changes. As a remedial measure, the combination of system dynamics (SD) and agent-based modeling (ABM) is proposed...

chapter

Exploring Smartphones as WAVE Devices

Jeman Park, Jihye Kim, Seungho Kuk, Yongtae Park, more

2015 IEEE 82nd Vehicular Technology Conference (VTC2015-Fall) > 1 - 5

2015 IEEE 82nd Vehicular Technology Conference (VTC Fall)

In this paper, we explore the possibility of using smartphones as WAVE devices. When it is expected to take more than a decade from now to deploy the WAVE technology in full scale, smartphones running the WAVE protocol stack can bring the benefit of the technology earlier. In particular, we design and implement the lower layers of the WAVE stack in software defined radio (SDR) on smartphone platform...

article

Diagnosing service quality using customer reviews: an index approach based on sentiment and gap analyses

Bomi Song, Changyong Lee, Byungun Yoon, Yongtae Park

Service Business > 2016 > 10 > 4 > 775-798

Recognizing the importance and potential benefits of customer reviews as a source of the voice of customers, this study proposes an analytic framework and procedures for analyzing customer reviews—termed a customer review-based gap analysis—that are tailored to diagnosing service quality. To this end, we conduct sentiment analysis on customer reviews to capture customers’ perceptions and expectations...

article

A structured approach to explore knowledge flows through technology-based business methods by integrating patent citation analysis and text mining

Hyun Joung No, Yoonjung An, Yongtae Park

Technological Forecasting & Social Change > 2015 > 97 > Complete > 181-192

With information and communication technology (ICT) as an enabling platform, diversified new business methods (BMs) have been developed. These new technology-based BMs have played an important role in knowledge flow as they became a patentable subject matter. However, there are not many studies on knowledge flow through the technology-based BMs or BM patents in spite of its importance. As an attempt...

chapter

Safety beaconing rate control based on vehicle counting in WAVE

Haiyue Piao, Yongtae Park, Byungjo Kim, Hyogon Kim

2015 IEEE Intelligent Vehicles Symposium (IV) > 1361 - 1366

2015 IEEE Intelligent Vehicles Symposium (IV)

In the IEEE Wireless Access in Vehicular Environment (WAVE) environment, periodic beacon messages enable proximity awareness that helps prevent collisions. One of the barriers that hinder the beacon delivery is congestion, which means that the amount of beacon traffic exceeds the Dedicated Short Range Communication (DSRC) channel capacity. In this paper, we propose a scheme for vehicles to independently...

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INFONA - science communication portal

Search results for: Yongtae Park

Leveraging ideas from user innovation communities: using text‐mining and case‐based reasoning

Predicting the degree of interdisciplinarity in academic fields: the case of nanotechnology

Identifying and structuring service functions of mobile applications in Google’s Android Market

Identifying dynamic knowledge flow patterns of business method patents with a hidden Markov model

Overcoming IoT Language Barriers Using Smartphone SDRs

Applying LSA text mining technique in envisioning social impacts of emerging technologies: The case of drone technology

Development of a service evolution map for service design through application of text mining to service documents

How to generate creative ideas for innovation: a hybrid approach of WordNet and morphological analysis

Futuristic data-driven scenario building: Incorporating text mining and fuzzy association rule mining into fuzzy cognitive map

Orai1 mediates osteogenic differentiation via BMP signaling pathway in bone marrow mesenchymal stem cells

Evaluation of e-commerce websites using fuzzy hierarchical TOPSIS based on E-S-QUAL

User-Specific Service Generation: A Morphological Approach to Customized Blog Creation

Geographic scheduling of directional transmission for periodic safety messages in IEEE WAVE

A patent portfolio-based approach for assessing potential R&D partners: An application of the Shapley value

Exploring the intellectual structure of nanoscience and nanotechnology: journal citation network analysis

A dynamic feasibility analysis of public investment projects: An integrated approach using system dynamics and agent-based modeling

Exploring Smartphones as WAVE Devices

Diagnosing service quality using customer reviews: an index approach based on sentiment and gap analyses

A structured approach to explore knowledge flows through technology-based business methods by integrating patent citation analysis and text mining

Safety beaconing rate control based on vehicle counting in WAVE

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