• 제목/요약/키워드: Feature-Oriented Analysis Model

검색결과 26건 처리시간 0.14초

The research about RTPM system construction that apply use case modeling methodology

  • Eun Young-Ahn;Kyung Hwan-Kim;Jae Jun-Kim
    • 국제학술발표논문집
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    • The 3th International Conference on Construction Engineering and Project Management
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    • pp.464-471
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    • 2009
  • Robot and application of IT skill of construction industry are slow comparatively than another thing industry by the feature. This research proposes progress management and real time information gathering through construction automation and RFID focused on steel structure construction. Building for RTPM system, must consider various variables and surrounding situation in construction field and it is the most important and difficult matter that draw right requirement and grasp relation between this requirements to accomplish one suitable task considering these environment. Therefore, in this study analyzes requirement and target for RTPM system based on scenario that is easy to draw requirement and apply this to use case model. Presented method suggests that represent relation between goals and way that refines goal systematically from requirement of RTPM system. And it could express for visualization through the Way that attaches nonfunctional elements of system with system internal goal.

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FDI와 수출 간 관계 연구 - 베트남의 사례를 중심으로 (The Analysis of the Effect of FDI to Export - from the case of Vietnam)

  • 레응옥카이;노영진
    • 무역학회지
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    • 제45권4호
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    • pp.95-105
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    • 2020
  • Vietnam has experienced a high economic growth since early 2000s. One of the reasons for this successful economic growth is foreign direct investment that has been invested mainly in manufacturer sector in Vietnam. In this paper, we examine the impacts of foreign direct investment to Vietnam on its exports using quarterly data from 2000:1 to 2017:4. Since all the variables in our model is subject to I(1), we apply Fully Modified OLS(FMOLS) to estimate a cointegration vectors. Our results show that there exists a long-run relationship among Export, FDI, Exchange rate and G20 countries' GDP. Also, we find that FDI has a positive effect on Vietnam's export, which was statistically significant. Our results support the hypothesis that the FDI to Vietnam since 2000 has an export-oriented feature.

Analyzing Machine Learning Techniques for Fault Prediction Using Web Applications

  • Malhotra, Ruchika;Sharma, Anjali
    • Journal of Information Processing Systems
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    • 제14권3호
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    • pp.751-770
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    • 2018
  • Web applications are indispensable in the software industry and continuously evolve either meeting a newer criteria and/or including new functionalities. However, despite assuring quality via testing, what hinders a straightforward development is the presence of defects. Several factors contribute to defects and are often minimized at high expense in terms of man-hours. Thus, detection of fault proneness in early phases of software development is important. Therefore, a fault prediction model for identifying fault-prone classes in a web application is highly desired. In this work, we compare 14 machine learning techniques to analyse the relationship between object oriented metrics and fault prediction in web applications. The study is carried out using various releases of Apache Click and Apache Rave datasets. En-route to the predictive analysis, the input basis set for each release is first optimized using filter based correlation feature selection (CFS) method. It is found that the LCOM3, WMC, NPM and DAM metrics are the most significant predictors. The statistical analysis of these metrics also finds good conformity with the CFS evaluation and affirms the role of these metrics in the defect prediction of web applications. The overall predictive ability of different fault prediction models is first ranked using Friedman technique and then statistically compared using Nemenyi post-hoc analysis. The results not only upholds the predictive capability of machine learning models for faulty classes using web applications, but also finds that ensemble algorithms are most appropriate for defect prediction in Apache datasets. Further, we also derive a consensus between the metrics selected by the CFS technique and the statistical analysis of the datasets.

Sign Language Translation Using Deep Convolutional Neural Networks

  • Abiyev, Rahib H.;Arslan, Murat;Idoko, John Bush
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제14권2호
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    • pp.631-653
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    • 2020
  • Sign language is a natural, visually oriented and non-verbal communication channel between people that facilitates communication through facial/bodily expressions, postures and a set of gestures. It is basically used for communication with people who are deaf or hard of hearing. In order to understand such communication quickly and accurately, the design of a successful sign language translation system is considered in this paper. The proposed system includes object detection and classification stages. Firstly, Single Shot Multi Box Detection (SSD) architecture is utilized for hand detection, then a deep learning structure based on the Inception v3 plus Support Vector Machine (SVM) that combines feature extraction and classification stages is proposed to constructively translate the detected hand gestures. A sign language fingerspelling dataset is used for the design of the proposed model. The obtained results and comparative analysis demonstrate the efficiency of using the proposed hybrid structure in sign language translation.

U-마켓에서의 사용자 정보보호를 위한 매장 추천방법 (A Store Recommendation Procedure in Ubiquitous Market for User Privacy)

  • 김재경;채경희;구자철
    • Asia pacific journal of information systems
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    • 제18권3호
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    • pp.123-145
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    • 2008
  • Recently, as the information communication technology develops, the discussion regarding the ubiquitous environment is occurring in diverse perspectives. Ubiquitous environment is an environment that could transfer data through networks regardless of the physical space, virtual space, time or location. In order to realize the ubiquitous environment, the Pervasive Sensing technology that enables the recognition of users' data without the border between physical and virtual space is required. In addition, the latest and diversified technologies such as Context-Awareness technology are necessary to construct the context around the user by sharing the data accessed through the Pervasive Sensing technology and linkage technology that is to prevent information loss through the wired, wireless networking and database. Especially, Pervasive Sensing technology is taken as an essential technology that enables user oriented services by recognizing the needs of the users even before the users inquire. There are lots of characteristics of ubiquitous environment through the technologies mentioned above such as ubiquity, abundance of data, mutuality, high information density, individualization and customization. Among them, information density directs the accessible amount and quality of the information and it is stored in bulk with ensured quality through Pervasive Sensing technology. Using this, in the companies, the personalized contents(or information) providing became possible for a target customer. Most of all, there are an increasing number of researches with respect to recommender systems that provide what customers need even when the customers do not explicitly ask something for their needs. Recommender systems are well renowned for its affirmative effect that enlarges the selling opportunities and reduces the searching cost of customers since it finds and provides information according to the customers' traits and preference in advance, in a commerce environment. Recommender systems have proved its usability through several methodologies and experiments conducted upon many different fields from the mid-1990s. Most of the researches related with the recommender systems until now take the products or information of internet or mobile context as its object, but there is not enough research concerned with recommending adequate store to customers in a ubiquitous environment. It is possible to track customers' behaviors in a ubiquitous environment, the same way it is implemented in an online market space even when customers are purchasing in an offline marketplace. Unlike existing internet space, in ubiquitous environment, the interest toward the stores is increasing that provides information according to the traffic line of the customers. In other words, the same product can be purchased in several different stores and the preferred store can be different from the customers by personal preference such as traffic line between stores, location, atmosphere, quality, and price. Krulwich(1997) has developed Lifestyle Finder which recommends a product and a store by using the demographical information and purchasing information generated in the internet commerce. Also, Fano(1998) has created a Shopper's Eye which is an information proving system. The information regarding the closest store from the customers' present location is shown when the customer has sent a to-buy list, Sadeh(2003) developed MyCampus that recommends appropriate information and a store in accordance with the schedule saved in a customers' mobile. Moreover, Keegan and O'Hare(2004) came up with EasiShop that provides the suitable tore information including price, after service, and accessibility after analyzing the to-buy list and the current location of customers. However, Krulwich(1997) does not indicate the characteristics of physical space based on the online commerce context and Keegan and O'Hare(2004) only provides information about store related to a product, while Fano(1998) does not fully consider the relationship between the preference toward the stores and the store itself. The most recent research by Sedah(2003), experimented on campus by suggesting recommender systems that reflect situation and preference information besides the characteristics of the physical space. Yet, there is a potential problem since the researches are based on location and preference information of customers which is connected to the invasion of privacy. The primary beginning point of controversy is an invasion of privacy and individual information in a ubiquitous environment according to researches conducted by Al-Muhtadi(2002), Beresford and Stajano(2003), and Ren(2006). Additionally, individuals want to be left anonymous to protect their own personal information, mentioned in Srivastava(2000). Therefore, in this paper, we suggest a methodology to recommend stores in U-market on the basis of ubiquitous environment not using personal information in order to protect individual information and privacy. The main idea behind our suggested methodology is based on Feature Matrices model (FM model, Shahabi and Banaei-Kashani, 2003) that uses clusters of customers' similar transaction data, which is similar to the Collaborative Filtering. However unlike Collaborative Filtering, this methodology overcomes the problems of personal information and privacy since it is not aware of the customer, exactly who they are, The methodology is compared with single trait model(vector model) such as visitor logs, while looking at the actual improvements of the recommendation when the context information is used. It is not easy to find real U-market data, so we experimented with factual data from a real department store with context information. The recommendation procedure of U-market proposed in this paper is divided into four major phases. First phase is collecting and preprocessing data for analysis of shopping patterns of customers. The traits of shopping patterns are expressed as feature matrices of N dimension. On second phase, the similar shopping patterns are grouped into clusters and the representative pattern of each cluster is derived. The distance between shopping patterns is calculated by Projected Pure Euclidean Distance (Shahabi and Banaei-Kashani, 2003). Third phase finds a representative pattern that is similar to a target customer, and at the same time, the shopping information of the customer is traced and saved dynamically. Fourth, the next store is recommended based on the physical distance between stores of representative patterns and the present location of target customer. In this research, we have evaluated the accuracy of recommendation method based on a factual data derived from a department store. There are technological difficulties of tracking on a real-time basis so we extracted purchasing related information and we added on context information on each transaction. As a result, recommendation based on FM model that applies purchasing and context information is more stable and accurate compared to that of vector model. Additionally, we could find more precise recommendation result as more shopping information is accumulated. Realistically, because of the limitation of ubiquitous environment realization, we were not able to reflect on all different kinds of context but more explicit analysis is expected to be attainable in the future after practical system is embodied.

신자유주의 사회개혁으로서의 일본 공적개호보험: 시행 5년간의 사회적 결과를 중심으로 (The Introduction of the Japanese Public Long-Term Care Insurance as a Neo-Liberal Social Reform)

  • 조영훈
    • 한국사회복지학
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    • 제57권2호
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    • pp.165-184
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    • 2005
  • 1990년대 동안 일본사회를 뜨겁게 달구었던 공적개호보험이 2000년 4월 1일 마침내 시행되었다. 이 새로운 사회보험의 도입은 사회정책 연구자들에게 흥미로운 연구주제를 던져준다. 왜냐하면, 세계화의 진전에 따라 대부분의 선진 산업국가에서 복지부문의 축소 내지는 현상유지가 진행 중인 가운데 복지후진국인 일본에서는 복지확대정책이 시행된 것으로 보이기 때문이다. 이것은 세계화의 압력에 직면하여 모든 복지국가들의 축소가 목격될 것이라는 복지국가 연구자들의 일반적인 예상과 반대되는 것이다. 이 연구의 일차적인 목적은 공적개호보험의 도입이 복지국가 연구자들에게 던져준 수수께끼를 푸는데 있다. 이 연구의 가정은 공적개호보험이 사회보험의 외양을 갖고 있음에도 불구하고 기본적으로는 국가복지의 축소를 지향하며 장기간병서비스분야에서 국가의 책임감소와 개인의 책임증가를 가져온다고 하는 것이다. 이러한 가정이 경험적으로 입증된다면, 공적개호보험의 도입은 일본의 전통적인 축소지향 사회정책이나 현재 세계적으로 진행되고 있는 복지국가 위축의 추세를 충실히 따르는 것으로 해석될 수 있다. 이를 위해서 이 연구는 공적개호보험이 초래한 다양한 결과들에 대한 종단적인 비교분석을 시도한다. 이 연구의 주요 관심대상은 사회보험으로서의 공적개호보험의 소득재분배 효과, 공적개호보험의 도입으로 인해 촉발된 장기간병서비스 분야의 상업화 경향, 공적개호보험 도입에 따른 장기간병 관련 사회보장제도의 재정에 대한 주체별 부담 변화의 추이 등이다. 이 연구는 일본의 장기간병 관련 사회보장제도의 성격이 공적개호보험의 도입을 전후하여 어떻게 변화하였는가를 몇 가지 지표를 통해 분석함으로써 공적개호보험의 신자유주의적 성격을 뚜렷하게 보여줄 것이다.

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