• Title/Summary/Keyword: evaluating methods

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A Comparative Study on Noise Characteristics for Measuring and Evaluating Method of Exterior Traffic Noise (외부교통소음 측정 및 평가방법에 따른 소음특성 비교 연구)

  • Yang, Jae-Hoon;Kim, Kyong-Woo;Choi, Hyun-Jung;Yang, Kwan-Seop
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2007.11a
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    • pp.480-483
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    • 2007
  • Recently, many apartment houses were built in nearby road and railway. Road traffic noise level and railroad traffic noise level are important factors on apartment houses inhabitant's acoustic comforts. The measurement methods which noted by Ministry of Construction & Transportation, Ministry of Environment and Korean Industrial Standard are used for measurement of exterior noise at apartment houses. The purpose of this study compare the noise level characteristic by the measuring methods and evaluating methods. The results show that road traffic noise in the daytime appeared by not greatly noise level difference by the measuring method and evaluating methods. But railroad traffic noise appeared by greatly the noise level difference by the equivalent noise level(1hour) and continuous time.

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Evaluation of Similarity Analysis of Newspaper Article Using Natural Language Processing

  • Ayako Ohshiro;Takeo Okazaki;Takashi Kano;Shinichiro Ueda
    • International Journal of Computer Science & Network Security
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    • v.24 no.6
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    • pp.1-7
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    • 2024
  • Comparing text features involves evaluating the "similarity" between texts. It is crucial to use appropriate similarity measures when comparing similarities. This study utilized various techniques to assess the similarities between newspaper articles, including deep learning and a previously proposed method: a combination of Pointwise Mutual Information (PMI) and Word Pair Matching (WPM), denoted as PMI+WPM. For performance comparison, law data from medical research in Japan were utilized as validation data in evaluating the PMI+WPM method. The distribution of similarities in text data varies depending on the evaluation technique and genre, as revealed by the comparative analysis. For newspaper data, non-deep learning methods demonstrated better similarity evaluation accuracy than deep learning methods. Additionally, evaluating similarities in law data is more challenging than in newspaper articles. Despite deep learning being the prevalent method for evaluating textual similarities, this study demonstrates that non-deep learning methods can be effective regarding Japanese-based texts.

Fire Testing Methods For The Electric Hair Dryer (전기 헤어드라이기에 대한 화재 시험법에 관한 연구)

  • Jang, In-Hyeok;Na, Hyun-Jun;Moon, Eun-A;Lee, Chang-Hoon;Lim, Houng-Woo
    • Journal of Applied Reliability
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    • v.16 no.1
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    • pp.7-14
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    • 2016
  • Purpose: The purpose of this study is to development the fire evaluating test methods for the Electric hair dryers. Methods: We was designed FMEA (Failure mode and effects analysis) in order to analyze the fire mechanism on the electric hair dryers and designed evaluating test methods (Durability tests on the environment, Mechanical durability tests) obtained through the two-step QFD (Quality Function Depolyment) and tested. Conclusion: We verified the evaluating fire test methods on the electric hair dryers through the analysis of the test results and some reproduction test.

Graphical Methods for Evaluating the Degree of the Orthogonality of Nearly Orthogonal Arrays (근사직교배열의 직교성의 정도를 평가하기 위한 그레픽방법)

  • Jang Dae-Heung
    • Journal of Korean Society for Quality Management
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    • v.32 no.4
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    • pp.220-228
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    • 2004
  • The orthogonality is an important property in the experimental designs. When we use nearly orthogonal arrays, we need evaluate the degree of the orthogonality of given experimental designs. Graphical methods for evaluating the degree of the orthogonality of nearly orthogonal arrays are suggested.

Graphical Methods for Evaluating the Degree of the Orthogonal Blocking

  • Jang, Dae-Heung
    • 한국데이터정보과학회:학술대회논문집
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    • 2006.04a
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    • pp.49-54
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    • 2006
  • When using response surface designs, the experimental trials should be carried out in blocks in case of heterogeneity of conditions. When we use nearly orthogonal blocking, we need evaluate the degree of orthogonal blocking. Graphical methods for evaluating the degree of orthogonal blocking are suggested.

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Graphical Methods for Evaluating the Degree of the Orthogonal Blocking

  • Jang, Dae-Heung
    • Journal of the Korean Data and Information Science Society
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    • v.17 no.3
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    • pp.669-675
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    • 2006
  • When using response surface designs, the experimental trials should be carried out in blocks in case of heterogeneity of conditions. When we use nearly orthogonal blocking, we need evaluate the degree of orthogonal blocking. Graphical methods for evaluating the degree of orthogonal blocking are suggested.

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A Study on the Evaluating Indicators of the Level of Deterioration in High-rise and high-density Apartments (고층고밀 아파트단지의 노후도 평가지표 개발)

  • Cho, Sung-Heui;Lee, Tae-Kyung
    • Journal of the Korean housing association
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    • v.20 no.4
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    • pp.131-142
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    • 2009
  • High-rise and high-density apartment complexes have been built and supplied on a large scale in the 1st period of the New Town project in metropolitan areas since the late 1980s. Now It has become necessary to improve those apartment complexes, which have serious deterioration problems for aging more than about 20 years accompanying simultaneity and a large scale. The purpose of this research is to develop the evaluating indicators to measure the level of deterioration of apartments inclusively and practically in order to regenerate apartments as sustainable residential environments. This study is composed of the following four parts; (a) establishing the conceptual model of evaluation of apartment deterioration, (b) selecting evaluation items, (c) constituting evaluation measurement, and(d)weighting evaluation indicators. First, deterioration of apartments was conceptualized by physical. social, and economical aspects in terms of sustainable development and proposed the conceptual model of hierarchy structure of evaluation of apartment deterioration by literature reviews. Second, evaluating items were selected based on literature reviews of existing indicators and preceding studies about apartments of Korea and foreign countries. The evaluating indicators were identified as a total of 77 evaluating items which were composed of three dimensions and 9 attributes on the basis of the conceptual model. They cover comprehensive scope of the apartment such as unit, building, complex, and site. Third, as the measurement, the 5 point ordinal scale measure was suggested. The evaluating measurement including measure standards, measure methods, and measure contents were developed by each evaluating items. Lastly, the weighting of evaluating indicators was analyzed by AHP method conducted by survey on the expert group. Items were identified as high contributors or low contributors. The weighting of these items could suggest several evaluations according to the situation. The evaluation of the level of deterioration can be done by both total evaluation and a specific field of evaluation. In addition, it is easy to grasp deteriorated attributes or dimensions by providing a radar and bar chart showing evaluation results. These evaluating indicators could be a useful tool to grasp actual methods for the regeneration of apartments.

The Effects of BBS Evaluating Frequency for Balance in Patients with Stroke (BBS 평가 빈도가 뇌졸중 환자의 균형에 미치는 영향)

  • Yang, Seung-Hoon
    • Journal of Korean Physical Therapy Science
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    • v.15 no.2
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    • pp.25-32
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    • 2008
  • Background: The purposes of this study were to examine whether “Berg Balance Sale(BBS)” had influence on the improvement of stroke patient's balancing ability, and to identify whether the effects had significant differences to these three groups that different frequency of BBS evaluation. Subjects were divided into three groups, a daily evaluating group (n=12), weekly evaluating group (n=12), and group that evaluating when admit and discharge (n=12). Methods: All patients were treated general neurorehabilitative physical therapy for daily during 4 weeks. All patients of these groups were evaluated balance function by using of BBS balance testing tool. Results: At the first week and after 4 weeks, balance function that of these groups was improved significantly (p<,05). Especially, daily evaluating group was improved the most. In the comparison differences between 3 groups, daily evaluating group and weekly evaluating group, daily evaluating group and group that evaluating when admit and discharge were exhibited differences significantly. But there was no significant difference between weekly evaluating group and group that evaluating when admit and discharge. Conclusion: According to the results as presented above, testing method, BBS is effects on stroke patient's balancing ability considerably. And if BBS which can apply evaluate balance function properly apply with conventional neurorehabilitative physical therapy, stroke patients would obtain significant effects on the improvement of balancing ability.

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A Draft Korean Standards on the Evaluation Method of Airborne Sound Insulation in Building and Building Elements (공기음 차단성능 평가방법의 KS규격화 방안)

  • 양관섭;이태강;이근희;김선우
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2001.11a
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    • pp.387-391
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    • 2001
  • In evaluating sound performance of building, it is important to carry on tests and evaluations based upon residential sound performances. Korean Standards include test methods on sound performance, but don't include any code on evaluation methods. Therefore, evaluation methods from Japan or ISO have been used for evaluating sound performance in domestic so far. In this study, a draft of Korean Standards on a sound performance evaluation method in buildings is proposed.

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Evaluation of Nodularity in Ductile Cast Iron by Image Analysis (화상분석에 의한 구상흑연주철의 구상화율 판정)

  • Joo, Dae-Heon;Park, Joo-Seung;Kim, Myung-Ho
    • Journal of Korea Foundry Society
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    • v.21 no.3
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    • pp.198-203
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    • 2001
  • In determining properties of ductile cast iron, it is well known that nodularity plays a significant role. Therefore, the national and/or international standards for ductile cast iron such as KS, ISO, ASTM and JIS have specified some methods for evaluating it. However, most of standards have not recommended the methods using image analyzer which is known as an objective analyzing tool for evaluating microstructure. In this study, a reliable method for evaluating nodularity by image analyzing method was proposed, and the result was compared with that from the common counting method proposed in KS D 4302-1999. It was found that there was a reasonable relationship in nodularities measured by these two methods.

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