• 제목/요약/키워드: discussion networks

Search Result 94, Processing Time 0.025 seconds

Estimation of moment and rotation of steel rack connections using extreme learning machine

  • Shariati, Mahdi;Trung, Nguyen Thoi;Wakil, Karzan;Mehrabi, Peyman;Safa, Maryam;Khorami, Majid
    • Steel and Composite Structures
    • /
    • v.31 no.5
    • /
    • pp.427-435
    • /
    • 2019
  • The estimation of moment and rotation in steel rack connections could be significantly helpful parameters for designers and constructors in the initial designing and construction phases. Accordingly, Extreme Learning Machine (ELM) has been optimized to estimate the moment and rotation in steel rack connection based on variable input characteristics as beam depth, column thickness, connector depth, moment and loading. The prediction and estimating of ELM has been juxtaposed with genetic programming (GP) and artificial neural networks (ANNs) methods. Test outcomes have indicated a surpass in accuracy predicting and the capability of generalization in ELM approach than GP or ANN. Therefore, the application of ELM has been basically promised as an alternative way to estimate the moment and rotation of steel rack connection. Further particulars are presented in details in results and discussion.

Application of Different Tools of Artificial Intelligence in Translation Language

  • Mohammad Ahmed Manasrah
    • International Journal of Computer Science & Network Security
    • /
    • v.23 no.3
    • /
    • pp.144-150
    • /
    • 2023
  • With progressive advancements in Man-made consciousness (computer based intelligence) and Profound Learning (DL), contributing altogether to Normal Language Handling (NLP), the precision and nature of Machine Interpretation (MT) has worked on complex. There is a discussion, but that its no time like the present the human interpretation became immaterial or excess. All things considered, human flaws are consistently dealt with by its own creations. With the utilization of brain networks in machine interpretation, its been as of late guaranteed that keen frameworks can now decipher at standard with human interpreters. In any case, simulated intelligence is as yet not without any trace of issues related with handling of a language, let be the intricacies and complexities common of interpretation. Then, at that point, comes the innate predispositions while planning smart frameworks. How we plan these frameworks relies upon what our identity is, subsequently setting in a one-sided perspective and social encounters. Given the variety of language designs and societies they address, their taking care of by keen machines, even with profound learning abilities, with human proficiency looks exceptionally far-fetched, at any rate, for the time being.

The Current State and Challenges of Linked Data in Library Cataloging (편목의 관점에서 본 링크드 데이터: 현황과 과제)

  • Rho, Jee-Hyun
    • Journal of Korean Library and Information Science Society
    • /
    • v.50 no.3
    • /
    • pp.71-95
    • /
    • 2019
  • With high interest in linked data, there are various attempts to accommodate the linked data model in cataloging process. This study intends to discuss how to adopt and make the best use of linked data based bibliographic framework in order to improve the quality of library catalogs and to enhance library services in Korean libraries. To the end, this study focuses on (1) discussion of the meaning of linked data from the library cataloging perspective, (2) tracking best practices for implementing and operating linked data among North American and Europe libraries and bibliographic networks (in detail, constructing various types of ontology, developing linked data model including BIBFRAME and OCLC linked model, and improving retrieval service and interface), and finally (3) exploring problems and the anticipated challenges to transition to the linked data model in Korea. The data for discussion were collected from literature review and case study.

Stock Price Prediction Using Sentiment Analysis: from "Stock Discussion Room" in Naver (SNS감성 분석을 이용한 주가 방향성 예측: 네이버 주식토론방 데이터를 이용하여)

  • Kim, Myeongjin;Ryu, Jihye;Cha, Dongho;Sim, Min Kyu
    • The Journal of Society for e-Business Studies
    • /
    • v.25 no.4
    • /
    • pp.61-75
    • /
    • 2020
  • The scope of data for understanding or predicting stock prices has been continuously widened from traditional structured format data to unstructured data. This study investigates whether commentary data collected from SNS may affect future stock prices. From "Stock Discussion Room" in Naver, we collect 20 stocks' commentary data for six months, and test whether this data have prediction power with respect to one-hour ahead price direction and price range. Deep neural network such as LSTM and CNN methods are employed to model the predictive relationship. Among the 20 stocks, we find that future price direction can be predicted with higher than the accuracy of 50% in 13 stocks. Also, the future price range can be predicted with higher than the accuracy of 50% in 16 stocks. This study validate that the investors' sentiment reflected in SNS community such as Naver's "Stock Discussion Room" may affect the demand and supply of stocks, thus driving the stock prices.

Control Networks for Information Systems Development : Organizational and Agency Theory Perspectives (조직 이론과 대리 이론 관점에서 본 정보시스템 개발의 통제 네트워크에 관한 연구)

  • Hong, Sa-Neung
    • Journal of Intelligence and Information Systems
    • /
    • v.18 no.1
    • /
    • pp.71-90
    • /
    • 2012
  • Although it has been studied for a long time in various disciplines, most of control theories remain being developed by analyzing relatively simple tasks. Even recent research on control of information systems development explains only a small part of control phenomena observed in the real world projects. This research focuses on identifying and analyzing the concepts and structures in order to make them useful for understanding and explaining control of information systems development comprehensively This investigation utilizes the complementary relationship between views on control from organizational and economic perspectives. A conceptual framework developed by integrating previous research on control allows us to analyze the development of information systems for control purposes. The results of discussion about control mechanisms and network can be used as guidelines for designing control systems in real projects. Analysis of control networks shows that control of development projects requires quite complex networks intertwining a variety of controllers and controlees. The results of this research are expected to contribute to correcting the unbalanced status of IS research which has emphasized too heavily on planning and implementation, and deepening and widening our understanding about controlling development projects. Practitioners can use the results as guidelines for designing control mechanisms and networks, and get alerted by them about the agency risks inherent in outsourced developments.

Construction of a Protein-Protein Interaction Network for Chronic Myelocytic Leukemia and Pathway Prediction of Molecular Complexes

  • Zhou, Chao;Teng, Wen-Jing;Yang, Jing;Hu, Zhen-Bo;Wang, Cong-Cong;Qin, Bao-Ning;Lv, Qing-Liang;Liu, Ze-Wang;Sun, Chang-Gang
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.15 no.13
    • /
    • pp.5325-5330
    • /
    • 2014
  • Background: Chronic myelocytic leukemia is a disease that threatens both adults and children. Great progress has been achieved in treatment but protein-protein interaction networks underlining chronic myelocytic leukemia are less known. Objective: To develop a protein-protein interaction network for chronic myelocytic leukemia based on gene expression and to predict biological pathways underlying molecular complexes in the network. Materials and Methods: Genes involved in chronic myelocytic leukemia were selected from OMIM database. Literature mining was performed by Agilent Literature Search plugin and a protein-protein interaction network of chronic myelocytic leukemia was established by Cytoscape. The molecular complexes in the network were detected by Clusterviz plugin and pathway enrichment of molecular complexes were performed by DAVID online. Results and Discussion: There are seventy-nine chronic myelocytic leukemia genes in the Mendelian Inheritance In Man Database. The protein-protein interaction network of chronic myelocytic leukemia contained 638 nodes, 1830 edges and perhaps 5 molecular complexes. Among them, complex 1 is involved in pathways that are related to cytokine secretion, cytokine-receptor binding, cytokine receptor signaling, while complex 3 is related to biological behavior of tumors which can provide the bioinformatic foundation for further understanding the mechanisms of chronic myelocytic leukemia.

COVID-19 Discourse and Social Welfare Intervention through Online News Big Data: Focusing on the Elderly Living Alone (온라인 뉴스 빅데이터를 통한 코로나 19 담론과 사회복지 개입방안: 독거노인을 중심으로)

  • Yeo, Jiyoung
    • 한국노년학
    • /
    • v.41 no.3
    • /
    • pp.353-371
    • /
    • 2021
  • The purpose of this study is to provide clues to social welfare policy making by revealing discourse on social intervention and response based on big data on elderly living alone in the COVID-19 situation. Keyword analysis, network analysis, and topic analysis were utilized to explore the ways in which news media have portrayed challenges facing older individuals and the ways in which the central and local government as well as private organization have responded to them. Results are as follows. First, networks(degree, closeness, betweenness) were formed around region, delivery, society, support, and vulnerability, suggesting an increased demand for economic assistance and social support as well as stronger service delivery systems. Second, key topics derived included "establishing public delivery systems", "establishing local networks", "Managing care gap", "Establishing a private economic support system", and "Establishing service organization system". Based on the research results, discourse on the organic role of government, communities and the private sector has been presented, suggesting policy and practical implications by proposing a discussion on how to intervene for elderly living alone in disaster situations such as COVID-19.

A review on sensors and systems in structural health monitoring: current issues and challenges

  • Hannan, Mahammad A.;Hassan, Kamrul;Jern, Ker Pin
    • Smart Structures and Systems
    • /
    • v.22 no.5
    • /
    • pp.509-525
    • /
    • 2018
  • Sensors and systems in Civionics technology play an important role for continuously facilitating real-time structure monitoring systems by detecting and locating damage to or degradation of structures. An advanced materials, design processes, long-term sensing ability of sensors, electromagnetic interference, sensor placement techniques, data acquisition and computation, temperature, harsh environments, and energy consumption are important issues related to sensors for structural health monitoring (SHM). This paper provides a comprehensive survey of various sensor technologies, sensor classes and sensor networks in Civionics research for existing SHM systems. The detailed classification of sensor categories, applications, networking features, ranges, sizes and energy consumptions are investigated, summarized, and tabulated along with corresponding key references. The current challenges facing typical sensors in Civionics research are illustrated with a brief discussion on the progress of SHM in future applications. The purpose of this review is to discuss all the types of sensors and systems used in SHM research to provide a sufficient background on the challenges and problems in optimizing design techniques and understanding infrastructure performance, behavior and current condition. It is observed that the most important factors determining the quality of sensors and systems and their reliability are the long-term sensing ability, data rate, types of processors, size, power consumption, operation frequency, etc. This review will hopefully lead to increased efforts toward the development of low-powered, highly efficient, high data rate, reliable sensors and systems for SHM.

In Study on Investigate the Distress in Multi-Cultural Families with Hill's ABCX Model (ABCX모델에 근거한 다문화가족의 디스트레스(Distress) 연구)

  • Chang, Jin-Kyung;Jun, Jong-Mi;Shin, Yoo-Kyung
    • Journal of Families and Better Life
    • /
    • v.27 no.4
    • /
    • pp.103-116
    • /
    • 2009
  • This study aims to investigate the process of family distress to family crisis in multi-cultural families based on Hill's ABCX model. For this study, the qualitative study with depth interview was conducted with 8 multi-cultural families(e.g. husband, wife, child and elderly parent). The depth interview contents were marriage process, family relation or family interactions, social adaptation process, and social services needs. Results showed the followings: First, multi-cultural families had multiple distressors so that these distressors made multi-cultural families vulnerable to family crisis. Second, Hill's ABCX model explained the process of family distress to family crisis in the multi-cultural families in that they had few resources(both individual resources and family resources) and even worse they had negative cognitions about their own multi-cultural family systems. This situation made them difficult to solve their problems and to cope with their distressors. Third, major distressors in multi-cultural families were founded in this study. These were different cultural gap, communication difficulties, social discrimination to multi-cultural families, and lack of social support networks. Discussion will address suggestions about effective family policies for multi-cultural families in order to make them resilient to family crisis and help to well-adjusted in the korean society.

Development Strategy of Orbit Determination System for Korea's Lunar Mission: Lessons from ESA, JAXA, ISRO and CNSA's Experiences

  • Song, Young-Joo;Ahn, Sang-Il;Sim, Eun-Sup
    • Journal of Astronomy and Space Sciences
    • /
    • v.31 no.3
    • /
    • pp.247-264
    • /
    • 2014
  • In this paper, a brief but essential development strategy for the lunar orbit determination system is discussed to prepare for the future Korea's lunar missions. Prior to the discussion of this preliminary development strategy, technical models of foreign agencies for the lunar orbit determination system, tracking networks to measure the orbit, and collaborative efforts to verify system performance are reviewed in detail with a short summary of their lunar mission history. Covered foreign agencies are European Space Agency, Japan Aerospace Exploration Agency, Indian Space Research Organization and China National Space Administration. Based on the lessons from their experiences, the preliminary development strategy for Korea's future lunar orbit determination system is discussed with regard to the core technical issues of dynamic modeling, numerical integration, measurement modeling, estimation method, measurement system as well as appropriate data formatting for the interoperability among foreign agencies. Although only the preliminary development strategy has been discussed through this work, the proposed strategy will aid the Korean astronautical society while on the development phase of the future Korea's own lunar orbit determination system. Also, it is expected that further detailed system requirements or technical development strategies could be designed or established based on the current discussions.