• The Transactions of the Korea Information Processing Society
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• v.13 no.10
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• pp.537-544
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• 2024

The rapid advancement of artificial intelligence and machine learning technologies is driving innovation across various industries, with natural language processing offering substantial opportunities for the analysis and processing of text data. The development of effective text classification models requires several complex stages, including data exploration, preprocessing, feature extraction, model selection, hyperparameter optimization, and performance evaluation, all of which demand significant time and domain expertise. Automated machine learning (AutoML) aims to automate these processes, thus allowing practitioners without specialized knowledge to develop high-performance models efficiently. However, current AutoML frameworks are primarily designed for structured data, which presents challenges for unstructured text data, as manual intervention is often required for preprocessing and feature extraction. To address these limitations, this study proposes a web-based AutoML platform that automates text preprocessing, word embedding, model training, and evaluation. The proposed platform substantially enhances the efficiency of text classification workflows by enabling users to upload text data, automatically generate the optimal ML model, and visually present performance metrics. Experimental results across multiple text classification datasets indicate that the proposed platform achieves high levels of accuracy and precision, with particularly notable performance when utilizing a Stacked Ensemble approach. This study highlights the potential for non-experts to effectively analyze and leverage text data through automated text classification and outlines future directions to further enhance performance by integrating Large language models.

• Journal of the Economic Geographical Society of Korea
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• v.18 no.3
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• pp.296-318
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• 2015

The Bru-Van Kieu, one of ethnic minorities in Vietnam, have lived in the mountainous area along the border with Laos for centuries. Approximately by the end of the Second Indochina War, the Bru-Van Kieu were still a kinship-based and non-stratified societal group relying mainly on subsistence economy. Their traditional physical geography, nonetheless, has been transformed vigorously during the last few decades as a result of state-formation processes and changes in macro-economic policies. The paper aims to examine how ethnic minority adapt their livelihood to challenges instigated by macro political and economic processes. By examining livelihood adaptation of the Bru-Van Kieu, the study also identifies strategies that ethnic minorities use to negotiate with more powerful political and economic forces. The authors argue that the Bru-Van Kieu have deployed a strategy combining everyday resistance to maintain their limited social and cultural agencies and utilizing of these agencies in economic adaptation with other cross-ethnic non-state actors, enabling them to tap into new type of resources and opportunities.

• International Area Studies Review
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• v.21 no.4
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• pp.101-124
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• 2017

This study is to examine the current situation of the AEC (ASEAN Economic Community) and analyze macroeconomic situation of Vietnam since the launch of AEC. According to recent trade indicators, Vietnam is expected to be more productive in the manufacturing and processing sectors because it is at the heart of the global value chains (GVCs) in electronics, telephones, and textiles and shoes industry. Vietnam has signed or is negotiating free trade agreements with various countries around the world including Korea, Israel, EU and RCEP and so on. Therefore, it is expected that Vietnam's trade dependency and FDI inflows to Vietnam increase more and more. However, the fact that the proportion of exports by foreign-invested companies accounts for about 70% of the total exports implies the uncertainty of Vietnam's economy in the future. Attracting FDI investment can further reduce the competitiveness of domestic companies in Vietnam. Therefore, in order for Vietnam to maintain sustainable development in the future, it is necessary to reform the momentum of foreign-invested enterprises to the development of Vietnamese companies.

• Maritime Security
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• v.2 no.1
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• pp.151-184
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• 2021

Global warming due to climate change is one of the biggest challenges in the 21st century. Global warming is not only a disaster that threatens the global ecosystem but also an opportunity to reduce logistics costs and develop mineral resources by commercializing Arctic routes. The Arctic paradox, in which ecological and environmental threats and new economic opportunities coexist, is expected to have a profound impact on the global environment. As the glaciers disappear, routes through the Arctic Ocean without passing through the Suez and Panama Canals emerged as the 'third route.' This can reduce the distance of existing routes by 30%. Global warming has also brought about changes in the geopolitical paradigm. As Arctic ice begins to melt, the Arctic is no longer a 'constant' but is emerging as the largest geopolitical 'variable' in the 21st century. Accordingly, the Arctic, which was recognized as a 'space of peace and cooperation' in the post-Cold War era, is now facing a new strategic environment in which military and security aspects are emphasized. After the Cold War, the Arctic used to be a place for cooperation centered on environmental protection, but it is once again changing into a stage of competition and confrontation between superpowers, heralding 'Cold War 2.0.' The purpose of this study is to evaluate the strategic value of the Arctic Ocean from geopolitical and geoeconomic perspectives and derive strategic implications by analyzing the dynamics of the New Cold War taking place in the Arctic region.

• Journal of Arbitration Studies
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• v.28 no.2
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• pp.217-248
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• 2018

This paper reviews the Supreme Court of Japan in Decision of December 12, 2017, 2016 (Kyo) 43 (2011) concerning arbitrator's duty of disclosure and reasonable investigation under the Japan Arbitration Act (Arbitration Act). The Supreme Court of Japan recently issued a precedential decision interpreting, for the first time, the arbitrator disclosure requirements of the Arbitration Act. Under Article 18(4) of the Arbitration Act, arbitrators have an ongoing obligation to disclose circumstances which may give rise to justifiable doubts as to their impartiality or independence. The Supreme Court held that Article 18(4) of the Arbitration Act - requiring arbitrators to disclose all "facts likely to give rise to doubts as to his/her impartiality or independence" - (1) is not satisfied by blanket disclosures or advance waivers of potential future conflicts, and (2) requires disclosure of facts both known to an arbitrator or "that can be normally ascertained by an investigation that is reasonably possible${\cdots}$" This new standard presents opportunities and challenges for enforcing arbitration awards in Japan, and suggests measures that both arbitrators and parties can use to protect their awards. Also, the Supreme Court's new standards for evaluating arbitrator conflict disclosures suggest some measures that both arbitrators and parties to arbitration in Japan can take to protect the enforceability of their awards. The key factual question posed by the Supreme Court's ruling was whether an arbitrator's conflicts check was reasonable. Maintaining records regarding a review of potential conflicts or any investigation provides a ready source of proof in case of a future challenge. The Supreme Court has spoken clearly that so-called advance waivers of potential conflicts are not effective under Japanese law. Instead, to the extent that potential conflicts arise during the course of arbitration, they should be specifically disclosed.

• Journal of the Korean Institute of Landscape Architecture
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• v.52 no.4
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• pp.69-85
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• 2024

The creation of open spaces has both direct and indirect impacts on the local economy, society, culture, and environment. Since the public usually finances these spaces, it is necessary to ensure procedural rationality by promoting consensus among residents and other stakeholders. This study examines the extent of public participation in the creation of open spaces and summarizes trends. By analyzing seven cases of open space development based on participation in South Korea, the study identifies the characteristics and progression of participation during four phases of the development process in the Gwanghwamun Plaza Restructuring Project (2016-2022). During the agenda-setting phase, the Gwanghwamun Forum was convened to establish agendas for the plaza's restructuring. The design and governance phase included a design competition to select a proposal for the plaza, alongside the establishment of the Gwanghwamun Citizens' Committee for governance. Despite proactive efforts in the conflict resolution phase to halt extensive restructuring and enhance communication, civic groups opposed the project by presenting five distinct agendas. In the implementation phase, multiple public participation programs were conducted before the plaza's reopening. The study found that public participation in the Gwanghwamun Plaza project faced challenges such as inadequate participation conditions, limited information sharing, and monotonous participation opportunities. Although the institutional environment for public participation is improving, practical limitations remain. Therefore, a comprehensive examination of open space creation through public participation is necessary.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.8
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• pp.304-316
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• 2017

The purpose of this study was to identify the components of the adaptation experiences and factors that help male nurses adapt to clinical nursing settings. The participants were eight male nurses working at general hospitals. Data were collected through in-depth interviews and analyzed using Giorgi's phenomenological analysis methods. The core components of the adaptation experiences of the participants in clinical nursing settings were summarized as 'dedication to work', 'challenges in reality that are different from expectations', 'establishing a professional identity', and 'self-development for the future'. The relationships between these components showed causative, accelerative, and recursive characteristics. The adaptation process was structured in the temporal context. In order for male nurses to adapt well to clinical nursing settings, policy efforts should be made to improve their working conditions and resolve inequalities, such as granting equal opportunities for promotion regardless of sex. In addition, it is essential for male nurses to have sufficient internal control for them to make self-directed efforts to strengthen their willpower and self-development efforts to facilitate their adaptation. This study suggests that developing suitable strategies and policy efforts based on the results is required to assist male nurses in adapting to clinical nursing settings.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.16 no.1
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• pp.55-69
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• 2021

For the national economic development, the participation of women in the social and economic activities is crucial. The popularization of start-ups, digital transformation, and WEconomy trends have lowered the barriers to opportunities for women to start a business and provide an environment in which women can grow faster. This paper examines the significance and process of success of women entrepreneurs and the characteristics of innovation strategies and achievements by linking the recently changing business environment of a company, factors influencing the success of women entrepreneurship, and innovation activities. To this end, four companies' cases were analyzed in the fields of distribution/service and consumer products/services, which are areas of large investment among female startups. The result shows that women entrepreneurs recognize the meaning of success as creating and continuing to create a 'corporate value through establishing a trust relationship with customers' within the 'balance between personal life and work.' In terms of the business ecosystem, women entrepreneurs strive for 'business activities based on the win-win growth of consumers, producers and sellers' for success, and rather 'focus on the process with a problem-solving approach' rather than achieving performance-oriented goals. Also through excellent power of observation, flexibility, and execution power, women entrepreneurs conduct business by adapting to changing trends. In terms of innovation activities, the innovation strategy of women-led companies puts priority on 'creating the value customers want' and focuses on innovation in the 'customer-centric business model' rather than technological innovation. As such, women-led companies show several differentiated characteristics, which enable them to create corporate value and achieve sustainable growth. The barriers to challenges and opportunities for women to start a business have been lowered, and an ecosystem has been created for female startups to grow. But why are there still so few women entrepreneurs, and the answer to where we need to close these gaps is ultimately a close analysis and investigation of the field. We must present milestones for growth steps through the accumulation of case studies of women startups that have exited. In addition, women can stand as economic agents only when the policy targets are subdivided and specific approaches to child-rearing and childcare for women entrepreneurs must be taken. This paper expects to serve as basic data for follow-up studies and become the basis of research for women entrepreneurs to grow as economic agents.

• Journal of Advanced Navigation Technology
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• v.14 no.6
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• pp.890-899
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• 2010

The sport industry has been continuing to grow in the past few decades in the U.S., and it presents significant opportunities for the practitioners to increase the number of patrons. To convert this opportunity to optimum benefits for a sport organization, one of the most significant challenges for the practitioners would be promoting sport attendance and repatronage. So far, many studies have tried to identify variables that affect the level of sports attendance. However, many of these variables are rather uncontrollable due to the nature of the sports and contingencies that are derived from many areas of uncertainties. Thus, to acquire competitive advantage and profit maximization, it would be essential for the managers to focus on understanding controllable elements. This study found that many controllable variables that influence sports attendance coincide with the servicescape elements which have been widely used in the hospitality industry since 1992. In the light of the conceptual framework of servicescape, this study also attempted to isolate the controllable variables that can be utilized to increase the sports attendance. This study presents its significance not only in extending the application of servicescape concept to the sport industry, but also in providing suggestions for future empirical studies that would further identify these variables, gauge the relationship between those variables, and assess its impact on the sports attendance.

• The Mathematical Education
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• v.61 no.4
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• pp.521-537
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• 2022

The unprecedented COVID-19 pandemic has disrupted, interrupted, and changed the way we normally prepare our teacher candidates in teacher preparation programs. In this paper, we, two mathematics teacher educators (MTEs), reflect our own experiences in appropriating, transforming, reconstructing, and modifying our pedagogies of teacher education in making a transition from face-to-face to online environment during the COVID-19 pandemic. Using a collaborative self-study, we discussed issues, challenges, changes, opportunities, and innovations of teaching an elementary mathematics methods course in the online environment. Using a constant comparison method, we explored the following three themes: (1) using virtual manipulatives; (2) creating collaborative, interactive, and shared learning experiences for preservice teachers; and (3) making preservice teachers engaged in student thinking. These findings indicated that online teaching requires transformative knowledge for teacher educators. Transferring face-to-face to online is not a simple matter of putting the existing content to online; it should focus on pedagogical improvement in teaching mathematics rather than technology's sake or how it can be repurposed in a new online environment in a way that students' learning is optimized. The findings of this study provide implications for unpacking MTEs' technological pedagogical content knowledge (TPACK), creating collaborative learning experiences for preservice teachers, and designing a collaborative self-study between MTEs engaged in the community of professional learning.