• Title/Summary/Keyword: Service Trigger

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A Database Model for Intelligent Peripheral of Advanced Intelligent Network (차세대 지능망의 지능형 정보 제공 시스템을 위한 데이터베이스 모델)

  • Lee, Jae-Ho
    • Journal of The Korean Association of Information Education
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    • v.1 no.2
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    • pp.1-15
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    • 1997
  • In this paper we present database model for Intelligent Peripheral (IP) of Advanced Intelligent Network (AIN). The new model is developed through four phase. (1) An information of AIN IP is classified that would be stored in AIN IP database as specialized resources, service. schema and system information. (2) The modeling criteria are developed that would be used to model information classified. (3) Object-oriented concepts are used in modelifl8 classified information according to modeling criteria captured. (4) Methods applied to developed model are grouped, and active-based mechnisms such as trigger and constraints are developed. These selected methods and attributes are encapsulated into objects. Consequently they compose an active object-oriented AIN IP database model.

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Performance evaluations of a link state update mechanism considering traffic variation (트래픽 변화를 고려한 링크 상태 업데이트 알고리즘의 성능 분석)

  • Choi Seung-hyuk;Jung Myoung Hee;Chung Min Young;Yang Mijeong;Kim Tae Il;Park Jaehyung
    • Proceedings of the Korea Society for Simulation Conference
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    • 2005.11a
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    • pp.13-18
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    • 2005
  • Routers determine routing path considering network topology and link state information for providing QoS (quality of service) guarantee. Therefore, it is important that routers know link state information to calculate routing path. However, if routers generate link state update messages inordinately, their router performance are reduced due to the process of link state update messages. On the other side, in case that link state information is not updated appropriately, route setup requests can be rejected even though there exist routes. In this paper, we propose an algorithm to improve router performance and evaluate the proposed algorithm performance compare with conventional algorithm by simulations.

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Architecture Modeling and Performance Analysis of Event Rule Engine (이벤트 파싱 엔진의 구조 설계와 성능 분석)

  • 윤태웅;민덕기
    • Proceedings of the Korea Society for Simulation Conference
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    • 2003.11a
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    • pp.51-57
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    • 2003
  • In operating distributed systems, proactive management is one of the major concerns for better quality of service and future capacity planning. In order to handle this management problem effectively, it is necessary to analyze performances of the distributed system and events generated by components in the system. This paper provides a rule-based event parsing engine for proactive management. Our event parsing engine uses object hooking-based and event-token approaches. The object hooking-based approach prepares new conditions and actions in Java classes and allows dynamically exchange them as hook objects in run time. The event-token approach allows the event parsing engine consider a proper sequence and relationship among events as an event token to trigger an action. We analyze the performance of our event parsing engine with two different implementations of rule structure; one is table-based and the other is tree-based.

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A Fast Handover Mecllanism in Mobile IPv6 Networks for Reliable Multicasting Services (이동 IPv6 망에서 신뢰성 있는 멀티캐스트 서비스를 지원하는 빠른 핸드오버 메커니즘)

  • Shin Seok-Jae;Yoo Sang-Jo
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.30 no.9A
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    • pp.838-849
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    • 2005
  • Fast handover protocol provides seamless handover in mobile Ipv6 networks by reducing handover latency. This paper proposes FMIP-M mechanism to apply this advantage of fast handover protocol to multicast service. The FMIP-M is a fast handover mechanism that supports a reliable multicast service in mobile Ipv6 networks. When hosts move other networks, they may have seine data missing and out-of-synch problems of multicast data. The proposed mechanism provides reliable multicast transmission by compensating data losses from the previous AR. Also it provides an additional function that is able to change multicasting service types dynamically in accordance with network status related with multicasting. So that it is able to make multicast paths very close to the optimum and more efficient multicast service is possible. The performance of the proposed mechanism is evaluated by a time analysis and simulations in various conditions.

Calculation of Rainfall Triggering Index (RTI) to Predict the Occurrence of Debris Flow (토석류 발생 예측을 위한 강우경보지수 산정)

  • Nam, Dong-Ho;Lee, Suk-Ho;Kim, Man-Il;Kim, Byung-Sik
    • The Journal of Engineering Geology
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    • v.28 no.1
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    • pp.47-59
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    • 2018
  • At present, there has been a wide range of studies on debris flow in Korea, more specifically, on rainfall characteristics that trigger debris flow including rainfall intensity, rainfall duration, and preceding rainfall. the prediction of landslide / debris flow relies on the criteria for landslide watch and warning by the Korea Forest Service (KFS, 2012). Despite this, it has been found that most incidents of debris flow were caused by rainfall above the level of landslide watch, maximum hourly rainfall, extensive damage was caused even under the watch level. Under these circumstances, we calculated a rainfall triggering index (RTI) using the main factors that trigger debris flow-rainfall, rainfall intensity, and cumulative rainfall-to design a more sophisticated watch / warning criteria than those by the KFS. The RTI was classified into attention, caution, alert, and evacuation, and was assessed through the application of two debris flow incidents that occurred in Umyeon Mountain, Seoul, and Cheongju, Inje, causing serious damage and casualties. Moreover, we reviewed the feasibility of the RTI by comparing it with the KFS's landslide watch / warning criteria (KFS, 2012).

Regional Traffic Information Acquisition by Non-intrusive Automatic Vehicle Identification (비매설식 자동차량인식장치를 이용한 구간교통정보 산출 방법 연구)

  • Kang Jin-Kee;Son Youngtae;Yoon Yeo-Hwan;Byun Sangchul
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.1 no.1
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    • pp.22-32
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    • 2002
  • This paper describes about non-burial AVI (Automatic Vehicle Identification) system using general vehicle as probe car for obtaining more accurate traffic information while conserving road pavement surface. Existing spot traffic detectors have their own limits of not obtaining right information owing to its mathematical method. Burial AVI systems have some defects, causing traffic jam, needing much maintenance cost because of frequent cutting of loop and piezo-electric sensors. Especially, they have hard time to make right detection, when it comes to jamming time. Therefore, in this paper, we propose non-burial AVI system with laser trigger unit. Proposed non-burial AVI system is developed to obtain regional traffic information from normal Passing vehicle by automatic license number recognition technology. We have adapted it to national highway section between Suwon city and Pyong$\~$Taek city(9.5km) and get affirmative results. Vehicle detection rate of laser trigger unit is more than 95$\%$, vehicle recognition rate is 87.8$\%$ and vehicle matching rate is about 14.3$\%$. So we regard these as satisfying results to use the system for traffic information service. We evaluate proposed AVI system by regulation of some institutions which are using similar AVI system and the proposed system satisfies all conditions. For future study, we have plan of detailed research about proper lane number from all of the target lanes, optimal section length, information service period, and data fusion method for existing spot detector.

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The Role of Customer Values in Increasing Tourist Satisfaction in Gianyar Regency, Bali, Indonesia

  • CEMPENA, Ida Bagus;BRAHMAYANTI, Ida Ayu Sri;ASTAWINETU, Erwin Dyah;PANJAITAN, Feliks Anggia B.K.;KARTINI, Ida Ayu Nuh;PANJAITAN, Hotman
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.8
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    • pp.553-563
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    • 2021
  • Customer value has long been believed to be a direct trigger for increased tourist satisfaction, but as a mediating variable, it still needs to be proven further. This paper aims to examine the causal relationship between research variables, as well as to examine the role of customer value as a mediating variable in the relationship between service quality, brand quality, tourism products, customer value, and tourist satisfaction with tourists' objects. The population is tourists who visit tourist sites/destinations in the Gianyar Regency on the island of Bali, Indonesia, and the sample size is 270 respondents, selected through random sampling. Structural equation modeling (SEM), a multivariate statistical analysis technique, is used to analyze the causal relationships between variables. The results show that the model is accepted, and customer value is proven to be a positive mediating variable. The results also show that service quality, brand quality, and tourism products have an effect on customer value. This provides insight into the practical implications for tourism managers to increase the brand quality of tourist attractions as well as increase the professionalism and quality of tour guide services. This, in turn, will increase customer value and increase tourist satisfaction.

Design and Implementation of Open Service Platform for LBS (LBS를 위한 개방형 서비스 플랫폼의 설계 및 구현)

  • Min, Kyoung-Wook;Han, Eun-Young;Kim, Gwang-Soo
    • The KIPS Transactions:PartD
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    • v.11D no.6
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    • pp.1247-1258
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    • 2004
  • The LBS(Location-Based Service), which is based on individual's mobility, is required increasingly as mobile telecommunication and various infrastructures have developed rapidly. The technologies for LBS are location determination technology, service platform technology, contents provider technology and moving object database technology generally. Among these, service platform must be interoperable with location gate-way server and provide common function of billing, authentification, protect location information, privacy control, location trigger and intelligent acquisition and so on. The TTA(Telecommunications Technology Association) published specification that defines a standard protocol for safe and simple interface between LBS client and LBS platform and the OpenLS(Open Location Service) in OGC (Open GIS Consortium) released implementation specifications for providing Location based core services. In this paper, we implemented service platform for LBS which is able to interoperable with location gateway server and contents provider and is caracterized as follows. First, it could require and response location information from different types of location gateway server with same interface. Second, it complies with the standard interfaces with OpenLS 4 contents providers for core LBS. Third, it could provide location of wired phone as well as wireless mobile terminal compling with the standard protocol. Last, it could provide trajectorH information based past location as well as current location, because it is able to interoperable with moving object DBMS. This paper contributes to the construction and practical use of LBS by providing the method of implementation of service platform for LBS.

Development and Implementation of the Emergency Call Program for a Welfare for the Elderly (노인 복지를 위한 응급 상황 호출 프로그램의 개발 및 구현)

  • Kim, Jung-Hwan;Cho, Myeon-Gyun;Kim, Shik
    • IEMEK Journal of Embedded Systems and Applications
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    • v.8 no.2
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    • pp.79-85
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    • 2013
  • This paper proposes a system that utilizes USN(Ubiquitous Sensor Network), Bluetooth and smart phone to improve the function of senior houses. In typical approach, a system in a senior house either directly accesses the status of elderly people by its sensor or is alerted by elderly people who trigger an emergency bell, derive a decision and take an appropriate action. In addition, it is possible for a designated social worker to check the status of senior patients through monitoring system connected by UTP(Unshielded Uwisted Pair) cables, but the responsible person has to be present to monitor patients' status. However, the new system, suggested in this paper, embed Bluetooth function in a blood pressure gauge, thus the smart phone receives patients' health information such as blood pressure through Bluebooth, if any abnormal event occurs. Consequently, the smart phone sends SMS(Short Message Service) to a responsible social worker or a designated hospital. When this program in the paper becomes a reality, an unmanned system that is able to determine suitable actions for certain events will be established, even if a social worker were absence.

University Students' Perspective towards the Atmospherics of Theme Restaurants in Selangor, Malaysia

  • Lee, Sang-Hyeop
    • Culinary science and hospitality research
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    • v.23 no.6
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    • pp.47-56
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    • 2017
  • This study explored the factors affecting university students' perspectives towards a theme restaurant. Atmospherics has been regarded as one of the factors that affect the satisfaction of students as it would trigger emotional responses within the theme restaurant, determining the behavioral intention of the students, whether they would return to the restaurant or not. The findings could be referred by the theme restaurant managers to understand more about customers' needs and wants in terms of physical environment of the theme restaurant. Qualitative research method was applied. 10 face-to-face interviews were conducted and the research context was in the theme restaurants around Selangor, Malaysia. As a result, this study has found that the physical environment of the theme restaurant affected students' satisfaction towards their dining experiences as well as elicits emotional responses among the students during their dine-in processes in the theme restaurants. Both satisfaction and emotional responses of the students were found out to be imposing significant effects on the behavioral intention of the university students. Hence, this study provided assistance for the theme restaurant operators to understand their customers of university students and make more effective managing strategies.