• Title/Summary/Keyword: meaningful use

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Development of Science STEAM Program Using Storytelling (스토리텔링을 활용한 과학과 STEAM 프로그램 개발)

  • Lee, Sang-Gyun
    • Journal of the Korean Society of Earth Science Education
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    • v.6 no.2
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    • pp.136-144
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    • 2013
  • The purpose of this study is to examine the effects of creative thinking activities and scientific attitude through the use of storytelling in the STEAM program for elementary students. For the purpose of this study, a teaching plan and worksheet for students using storytelling in STEAM was developed and applied. The results of this study are as follows: First, the change in students' creative thinking activities by applying the STEAM program using storytelling has statistically meaningful difference (p<.05). Second, the improvement in the scientific attitude score has statistically meaningful difference(p<.05). Third, according to the analysis of a questionnaire used to evaluate the program, students had a positive perception of the STEAM program and gained higher level of satisfaction about the lesson. Therefore, using storytelling STEAM program applied in this study might be useful to improve creative thinking activities, and can be expected to improve scientific attitude and should be widely applied to gifted education.

Medical Image Data Compression Based on the Region Segmentation (영역분할을 기반으로 한 의료영상 데이타 압축)

  • 김진태;두경수
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.3 no.3
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    • pp.597-605
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    • 1999
  • In this paper, we propose a cardioangiography sequence image coding scheme which use a subtraction between initial image and current frame inserted contrast dye. Stable regions are obtained by the multithreshold and meaningful region is extracted by the images with stable region. The image with meaningful region is classified into contour and texture information. Contour information is coded by contour coding. And texture information is approximated by two-dimensional polynomial function and each coefficients is coded. Experimental results confirm that the sequence of cardioangiography are well reconstructed at the low bit rate (0.02∼0.04 bpp) and high compression ratio.

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Association Rule by Considering Users Web Site Visiting Time (사용자 웹 사이트 방문 시간을 고려한 연관 규칙)

  • Kang, Hyung-Chang;Kim, Chul-Soo;Lee, Dong-Cheol
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.29 no.2
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    • pp.104-109
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    • 2006
  • We can offer suitable information to users analyzing the pattern of users. An association rule is one of data mining techniques which can discover the pattern. We use an association rule which considers the web page visiting time and we should the pattern analyse of users. The offered method puts the weights in Web page visiting time of the user and produces an association rule. Weight is web page visiting time unit divide to total of web page visiting time. We offer rather meaningful result the association rule by Apriori algorithm. This method that proposes in the paper offers rather meaningful result Apriori algorithm

Implementation of Extracting Specific Information by Sniffing Voice Packet in VoIP

  • Lee, Dong-Geon;Choi, WoongChul
    • International journal of advanced smart convergence
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    • v.9 no.4
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    • pp.209-214
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    • 2020
  • VoIP technology has been widely used for exchanging voice or image data through IP networks. VoIP technology, often called Internet Telephony, sends and receives voice data over the RTP protocol during the session. However, there is an exposition risk in the voice data in VoIP using the RTP protocol, where the RTP protocol does not have a specification for encryption of the original data. We implement programs that can extract meaningful information from the user's dialogue. The meaningful information means the information that the program user wants to obtain. In order to do that, our implementation has two parts. One is the client part, which inputs the keyword of the information that the user wants to obtain, and the other is the server part, which sniffs and performs the speech recognition process. We use the Google Speech API from Google Cloud, which uses machine learning in the speech recognition process. Finally, we discuss the usability and the limitations of the implementation with the example.

Grammatical Structure Oriented Automated Approach for Surface Knowledge Extraction from Open Domain Unstructured Text

  • Tissera, Muditha;Weerasinghe, Ruvan
    • Journal of information and communication convergence engineering
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    • v.20 no.2
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    • pp.113-124
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    • 2022
  • News in the form of web data generates increasingly large amounts of information as unstructured text. The capability of understanding the meaning of news is limited to humans; thus, it causes information overload. This hinders the effective use of embedded knowledge in such texts. Therefore, Automatic Knowledge Extraction (AKE) has now become an integral part of Semantic web and Natural Language Processing (NLP). Although recent literature shows that AKE has progressed, the results are still behind the expectations. This study proposes a method to auto-extract surface knowledge from English news into a machine-interpretable semantic format (triple). The proposed technique was designed using the grammatical structure of the sentence, and 11 original rules were discovered. The initial experiment extracted triples from the Sri Lankan news corpus, of which 83.5% were meaningful. The experiment was extended to the British Broadcasting Corporation (BBC) news dataset to prove its generic nature. This demonstrated a higher meaningful triple extraction rate of 92.6%. These results were validated using the inter-rater agreement method, which guaranteed the high reliability.

Degrees of Understanding Regarding Information Literacy in Korean University Students (우리나라 대학생들의 정보활용능력 인식도에 관한 연구)

  • Lee, Hyun-Sil;Choi, Sang-Ki
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.16 no.1
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    • pp.91-112
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    • 2005
  • This is a survey study to measure degrees of understanding regarding Information literacy in Korean university students based on ACRL standards. In the results of the survey there were no meaningful differences between individuals age, gender, major, and University. There were also no meaningful difference between the five ACRL standards. However, there were meaningful differences between the performance indicators in each standard. For example in the first standard, the performance indicator 'Determines the nature and extent of the information needed', had the highest score. had the lowest score. In the second ‘Effective Access of Information', had the highest score. In the third ‘Evaluate and Incorporate Information', had the highest score>and had the lowest score. In the fourth ‘Use of Information', , had the highest score. In the last ‘Information Ethics', there was no meaningful difference. This study also showed outcomes regarding the details in each standard.

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A Study on the Effect of Using an Electronic Board in a Mathematics Classroom (수학수업에서 저비용으로 구성된 전자칠판의 활용효과에 대한 연구)

  • Park, Woong-Seo;ChoiKoh, Sang-Sook
    • Journal of the Korean School Mathematics Society
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    • v.14 no.1
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    • pp.1-29
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    • 2011
  • In this study, we designed and constructed a very low-cost electronic board in order to test its efficiency in the classroom as well as provide an easy-to-follow model for front-line teachers to re-create and utilize for their own academic use. For our sample size, we tested 143 high school first grade students. In mathematical achievement, we found meaningful improvement in both genders but we did not find any meaningful gender differences. In the mathematical disposition test, we also found some meaningful changes in curiosity and flexibility in both genders but did not find any meaningful gender differences either. Based on this study, we propose using our low-cost electronic board system, which is easy to make and effective in mathematical achievement, instead of recently promoted high-cost electronic board systems.

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Decision Tree Model for Predicting Hospice Palliative Care Use in Terminal Cancer Patients

  • Lee, Hee-Ja;Na, Im-Il;Kang, Kyung-Ah
    • Journal of Hospice and Palliative Care
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    • v.24 no.3
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    • pp.184-193
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    • 2021
  • Purpose: This study attempted to develop clinical guidelines to help patients use hospice and palliative care (HPC) at an appropriate time after writing physician orders for life-sustaining treatment (POLST) by identifying the characteristics of HPC use of patients with terminal cancer. Methods: This retrospective study was conducted to understand the characteristics of HPC use of patients with terminal cancer through decision tree analysis. The participants were 394 terminal cancer patients who were hospitalized at a cancer-specialized hospital in Seoul, South Korea and wrote POLST from January 1, 2019 to March 31, 2021. Results: The predictive model for the characteristics of HPC use showed three main nodes (living together, pain control, and period to death after writing POLST). The decision tree analysis of HPC use by terminal cancer patients showed that the most likely group to use HPC use was terminal cancer patients who had a cohabitant, received pain control, and died 2 months or more after writing a POLST. The probability of HPC usage rate in this group was 87.5%. The next most likely group to use HPC had a cohabitant and received pain control; 64.8% of this group used HPC. Finally, 55.1% of participants who had a cohabitant used HPC, which was a significantly higher proportion than that of participants who did not have a cohabitant (1.7%). Conclusion: This study provides meaningful clinical evidence to help make decisions on HPC use more easily at an appropriate time.

The Role of Allograft for Posterior Cruciate Ligament Reconstruction (후방 십자 인대 재건술에서 동종 이식건의 역할)

  • Chun, Churl Hong
    • Journal of the Korean Arthroscopy Society
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    • v.2 no.1
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    • pp.40-44
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    • 1998
  • The use of autogenous tissues is preferred for knee ligament reconstruction. However allografts play a role in major ligament reconstructive procedures in which multiple substitutions or revisions are required. In the dislocated knee, allografts may offer an advantage in reconstructing the PCL. But allografts in knee ligament surgery must be considered in terms of biomechanical and regenerative properties, disease transmission and immunogenecity, and methods of preservation and sterilization. Also only a few authors have described the use of allograft for reconstruction of a ruptured PCL, either a single procedure, or in combination with ACL repair following knee dislocation. Furthermore, the problems that the clinician faces with use of allografts is the necessity for supervision to ensure that the grafts are correctly processed, secondarily sterilized, and free of transmissible diseases. For these reasons, the routine use of allograft materials in the treatment of ligament deficiencies should be avoid and provide with meaningful outcome studies, including longterm follow-up.

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An Empirical Study on the Use of CASE Tools for Efficient Software Development (효율적 S/W 개발을 위한 CASE 도구 활용의 실증적 연구)

  • Jeon, Eung-Seop;Nam, Sang-Jo
    • Asia pacific journal of information systems
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    • v.3 no.1
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    • pp.31-53
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    • 1993
  • Computer Aided Software Engineering(CASE) tools are suggested as an automated method for the efficient development of softwares. This study are intended to measure the use level of CASE tools and to provide the meaningful information on the whole software development environment supported by CASE tools. Therefore, the results of a survey on CASE environment in Korea are empirically reported and analyzed. The use of CASE tools is measured; purposes purchasing CASE tools and achievement levels are investigated. Implications from the comparative analysis of the utilization of software engineering methodologies between the CASE user group and the non-user group are described. A proposition is suggested to check the request frequency for program change. Further studies on the reverse engineering, program reuse and the use of CASE tools under distributed processing systems such as client-server environments are suggested.

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