• Title/Summary/Keyword: Occupation Classification

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Feasibility of Deep Learning Algorithms for Binary Classification Problems (이진 분류문제에서의 딥러닝 알고리즘의 활용 가능성 평가)

  • Kim, Kitae;Lee, Bomi;Kim, Jong Woo
    • Journal of Intelligence and Information Systems
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    • v.23 no.1
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    • pp.95-108
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    • 2017
  • Recently, AlphaGo which is Bakuk (Go) artificial intelligence program by Google DeepMind, had a huge victory against Lee Sedol. Many people thought that machines would not be able to win a man in Go games because the number of paths to make a one move is more than the number of atoms in the universe unlike chess, but the result was the opposite to what people predicted. After the match, artificial intelligence technology was focused as a core technology of the fourth industrial revolution and attracted attentions from various application domains. Especially, deep learning technique have been attracted as a core artificial intelligence technology used in the AlphaGo algorithm. The deep learning technique is already being applied to many problems. Especially, it shows good performance in image recognition field. In addition, it shows good performance in high dimensional data area such as voice, image and natural language, which was difficult to get good performance using existing machine learning techniques. However, in contrast, it is difficult to find deep leaning researches on traditional business data and structured data analysis. In this study, we tried to find out whether the deep learning techniques have been studied so far can be used not only for the recognition of high dimensional data but also for the binary classification problem of traditional business data analysis such as customer churn analysis, marketing response prediction, and default prediction. And we compare the performance of the deep learning techniques with that of traditional artificial neural network models. The experimental data in the paper is the telemarketing response data of a bank in Portugal. It has input variables such as age, occupation, loan status, and the number of previous telemarketing and has a binary target variable that records whether the customer intends to open an account or not. In this study, to evaluate the possibility of utilization of deep learning algorithms and techniques in binary classification problem, we compared the performance of various models using CNN, LSTM algorithm and dropout, which are widely used algorithms and techniques in deep learning, with that of MLP models which is a traditional artificial neural network model. However, since all the network design alternatives can not be tested due to the nature of the artificial neural network, the experiment was conducted based on restricted settings on the number of hidden layers, the number of neurons in the hidden layer, the number of output data (filters), and the application conditions of the dropout technique. The F1 Score was used to evaluate the performance of models to show how well the models work to classify the interesting class instead of the overall accuracy. The detail methods for applying each deep learning technique in the experiment is as follows. The CNN algorithm is a method that reads adjacent values from a specific value and recognizes the features, but it does not matter how close the distance of each business data field is because each field is usually independent. In this experiment, we set the filter size of the CNN algorithm as the number of fields to learn the whole characteristics of the data at once, and added a hidden layer to make decision based on the additional features. For the model having two LSTM layers, the input direction of the second layer is put in reversed position with first layer in order to reduce the influence from the position of each field. In the case of the dropout technique, we set the neurons to disappear with a probability of 0.5 for each hidden layer. The experimental results show that the predicted model with the highest F1 score was the CNN model using the dropout technique, and the next best model was the MLP model with two hidden layers using the dropout technique. In this study, we were able to get some findings as the experiment had proceeded. First, models using dropout techniques have a slightly more conservative prediction than those without dropout techniques, and it generally shows better performance in classification. Second, CNN models show better classification performance than MLP models. This is interesting because it has shown good performance in binary classification problems which it rarely have been applied to, as well as in the fields where it's effectiveness has been proven. Third, the LSTM algorithm seems to be unsuitable for binary classification problems because the training time is too long compared to the performance improvement. From these results, we can confirm that some of the deep learning algorithms can be applied to solve business binary classification problems.

An Analysis of Biotope Structure in Terms of Species and Biotope Preservation in Metropolitan Area -In the case of Soosung District in Daegu- (생물종 및 서식지 보전의 관점에서 본 대도시의 비오톱 구조분석 -대구광역시 수성구를 중심으로-)

  • 나정화;이석철;사공정희;류연수
    • Journal of the Korean Institute of Landscape Architecture
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    • v.28 no.6
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    • pp.29-51
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    • 2001
  • The purpose of this research is to analyze of biotope structure focused on the evaluation for the species and biotope preservation in the case of Soosung District in Daegu metropolitan city. We analyzed the structure of urban biotope, and investigated the disposition of space and several characteristics through the material collection relating to the existing urban ecological material and the field investigation. The results of this study were as follows; 1) The result of biotope type classification was divided into 17 biotope type groups and 90 biotope types belonging to them. 2) The biotope type of mixed forest(QD) has the highest rate in occupation area, 1.764ha and the biotope type of cultivation areas by vinyle-hothouse(KC) has the lowest rate, 0.3ha. 3) In the result of the first evaluation for the species and biotope preservation, biotope types such as QB, QI, PA, PB, NB and NC etc. possess great value. Particulary, these biotope types come from forest areas and transition zone. They have not appeared in the inner of cities. 4) The biotope types such as CA, NA, NB, ND and PB are proved to possess high value in the result of rarity and riskiness evaluation. There appear EE, MA, NB, QC and QD in IV grade which is impossible to have them regenerative. They usually have appeared in forest areas. 5) There emerge 3a biotope type that has the highest value in the result of the second evaluation such as CC, EE, KF, LD, MB, NC, PB, QB and QI etc. Most of them were presented into the large area of site size and were distributed in the forest areas intensively. So, it is certain that the space for the species and biotope preservation connected with residential district is scarce. 6) The detailed biotope plan must be made out specially continuously. It is about biotope spaces that are especially important for the species and biotope preservation from the result of this research. Also, the study on the detailed index settlement of the urban landscape plan based on the biotope map must be continued.

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Disc and underwriting - A proposal of life underwriter in terms of insurance benefits - (디스크질환과 언더라이팅 -보장급부를 중심으로 고찰한 생명보험 언더라이터의 제안-)

  • Byun, Hye-Jin
    • The Journal of the Korean life insurance medical association
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    • v.27 no.2
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    • pp.96-106
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    • 2008
  • Herniate disc disease is one of the biggest problem in claim of insurance as well as in medical. Herniate disc disease have recently increased, and it is ranked 8th in claim reasons recently. As an underwriter and physical therapist, I want to study interrelationship of insurance and disc disease. I think it is necessary to know about knowledge of medical, so this study is given some space to structure of spine, cause of herniated disc disease, role of disc, methods of classification of disable (McBride method and AMA method), and spine disability stage. disc surgery is divided laparoscope disc surgery and spine surgery. I analysis it some factors- gender, age, occupation, re-surgery, and state of after surgery - through searching medical papers. I suggest below conclusion to underwriter because it can be useful to make questionnaire, and underwriter can expect prognosis. conclusion The negative factors of disc surgery (compare to other cases) were as follows: 1. endoscope disc surgery: $20{\sim}40year$ old man, hospitalization period more than 5 days. 2. spine surgery: $45{\sim}70year$ old woman, hospitalization period more than 15 days. 3. re-surgery experience: exist 4. working condition: a person who draws a small income, non-regular worker, working period is less than 1 year. 5. method of surgery: pedicle screw fixation. spine fusion surgery, artificial disc surgery. 6. post surgery condition: appearance of muscle weakness, paralysis, reference pain, lordosis, kyphosis, and complication. smoker or take a drink.

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DDC 지역구분표의 변천과정

  • 이창수
    • Journal of Korean Library and Information Science Society
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    • v.18
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    • pp.193-216
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    • 1991
  • The purpose of this study is to analyze the area table of twenty editions of the DDC in order to identify what major changes have been made chronologically. The summaries about which were discussed according to the edition order about the change processes of the most extensive area table of the DDC auxiliary table are as follows. 1. It is from the 17th edition that area table appeared as a special auxiliary table in DDC for the first time and the method of classifying areas like from 930 to 999 which is regional history in history class was taken before the introduction of independent area table. 2. The entry numbers in which the area table was applied increased continuously until the 18th edition but the applied entry number was rather decreased in the 20th edition especially the number was mainly decreased in history class, this is the result of the fact that the entry was classified by area table without enumerating each regional history in history class except for the basic area since the 17th edition but recently at least the area of over national unit according to the necessity of enumerating the entry in regional history within history class. 3. The relocation or revision of area table was made according to the literary warrant of the relevant area by period political and administrative conditions and the request of related organization or classifiers of the area rather than by the topographical features therefore the revision was made chiefly about the highly interested Europe Northern America especially the United States. 4. The entry numbers which were expanded according to area indicate that gradual improvement for the international feature as the revision of edition is repeated is made but because of the expansion of Northern America, especially the United States, regional disproportion is represented by the occupation of 56% in the entire entry numbers of the United States in case of the 20th edition. Lastly, the reasonable reform plans of area table will have to be groped on the basis of the results of analysis above and the consideration about the problems in the development of area table of DDC and the other main classification systems.

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A Study on the Planning of 119 Rescue Centers in Interior Design - Focus on the newly-built constructions since 2008 - (119 안전센터 공간계획에 관한 기초적 연구 - 2008년 이후의 재건축 및 신축건물을 중심으로 -)

  • Kim, Sung-Ju;Kim, Moon-Duk
    • Korean Institute of Interior Design Journal
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    • v.22 no.1
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    • pp.350-358
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    • 2013
  • Due to recent change in fire stations, this study aims to propose improved directions for planning of 119 rescue centers through its analysis of spatial organization and characteristics by functional area based in case studies of new-design centers. The Korean 119 rescue centers have changed in terms of function and roles in line with the flow of changing social environments, so it has been required to give new spatial change to these centers. It's meant in this study to classify compulsory special service spaces for the 119 rescue centers by domain and to suggest design guidelines for each type of spaces. Eight case of recue centers that were newly built in and after 2008 were selected and analyzed to serve the purpose. Finally, the results of this study were as followed: First, each of the rescue centers is divided into several domain depending on the type of work, and there are meaningful characteristics in the vertical and horizontal spatial layout of the individual spaces. Second, there are specific differences among the spaces in the spatial occupation percentage. The percentage of the space for community service is obviously lower in the 119 rescue centers in Seoul than in Incheon. Third, the domain classification criteria of this study are selected based on earlier studies, and another space for community service is newly added as a result of making a case study.

A Result on the Physical Checkup of Public Officials and School Personnel in Private Schools (공무원(公務員) 및 사립학교교직원(私立學校敎職員)의 건강진단(健康診斷)에서 나타난 결과(結果))

  • Yoon, Nung-Ki
    • Journal of Preventive Medicine and Public Health
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    • v.14 no.1
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    • pp.59-64
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    • 1981
  • Korean Medical Insurance Cooperation executed the physical checkup intended for all the members of public officials, school personnel in private schools, and the insured as a national-wide event in 1980. This is the result of a part of Taegu district and its contiguous country this hospital took charge of. Physical checkup method was divided into the first health examination and tile second health examination. The second health examination was executed for those who needed reexamination according to the result of the first health examination. After that, we passed judgement on the result finally. The total number of the first health examination was 10,779; 4,606 in public officials, 2,327 in police constables, 3,976 in school personnel in private schools. The classification of physical checkup is as follows; A group: normal groups B group: those who do not require immediate medical care but require preventive measures or who are doubtful of disease or who had undetermined diagnosis (attention) C group: those who require immediate medical care but who are able to be on duty (simple recuperation) D group: those who require immediate medical treatment and recuperation (suspension from office and recuperation) Total B group to the in the first health examination was 4.73%, that of total C,D groups 2.21%. That of total C,D groups to the total in the first health examination by occupation was 2.30% in public officials, 2.19% in police constables, 2.04% in school personnel. Consequently there was no different among occupations. Total C,D groups of hypertension to the total in the first health examination was 1.68% and hypertension was 76.05% to all disease. These rates mentioned to above were higher than any other rate in disease. Subsequently, being low, the rate of diabetes was 15.54%. From the view point of age, the higher rate appeared in men and women over 35 years old of B group and over 45 years old of C,D groups in three occupations in comparison with other ages and the older men were, the higher men who took a disease were.

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Study on the Factors Working Environment and Health Effects of Contingent Workers Youth (비정규직 청년의 근무환경과 건강영향의 요인에 관한 연구)

  • Choi, Kilyong;Kim, Hohyun
    • The Journal of the Korea Contents Association
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    • v.16 no.12
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    • pp.170-180
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    • 2016
  • Objectives: While the proportion of the non-regular workers youth increases in labor market, the differential conditions of temporary employee are increased. Methods: Research objects were 4,322 youth (from 15 to 29) among members of workers who responded to 2014 PSWCI panel report. Statistical analyses were performed using the SAS version 9.4 (SAS Institute Inc., Cary, NC, USA). Data were analyzed using frequency test, t-test, ANOVA and multiple regression. Results: According to results of analysis, youth had differences in youth temporary workers, working conditions, classification of occupation, working period, and health conditions based on work-time conditions. Conclusions: Youth workers, policies on working hours will need to take steps toward reducing working hours and improve a health promoting hierarchy for work environment.

Factors Associated with Fruit and Vegetable Consumption of Subjects Having a History of Stroke: Using 5th Korea National Health and Nutrition Examination Survey (2010, 2011) (제5기 국민건강영양조사(2010년, 2011년) 자료를 이용한 뇌졸중 유병 경험자들의 과일 및 채소 섭취 관련 요인 분석)

  • Kim, Sung Je;Choi, Mi-Kyung
    • Korean Journal of Community Nutrition
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    • v.19 no.5
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    • pp.468-478
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    • 2014
  • Objectives: Intake of fruits and vegetables has protective effects against stroke attack. This study intended to examine the status of consuming fruits and vegetables and to find out which factors may influence the frequency of consumption of fruits and vegetables in individuals with a history of stroke. Methods: The data of 208 subjects from 5th (2010, 2011) Korea National Health and Nutrition Examination Survey (KNHNES) who reported a stroke diagnosis was used for analysis. To identify major factors influencing the consumption of fruits and vegetables, a classification-tree analysis was carried out. Results: Among those who reported a stroke diagnosis, the frequencies of consumption of fruits and vegetables were influenced by their age, place of residence (urban or rural), economic status, educational level, occupation, number of family members, frequency of eating out, and having meals (breakfast or lunch) with family members. Two factors from fruits and three factors from vegetables were generated by exploratory factor analyses. Urban residents ate fruits and vegetables more frequently in all factors than rural residents. Eating frequencies of 'seasonal fruits (orange, apple, strawberry, melon, pear and watermelon)', 'easily-accessible fruits (persimmon, tangerine, grape, peach, banana)', and 'Western-style vegetables (cabbage, mushroom, carrot, tomato, spinach)' were influenced by the socioeconomic status. Eating frequencies of 'Korean-style vegetables (bean sprout, radish leaves, pumpkin/squash, sea weed)', 'preserved vegetables (Korean cabbage, radish, laver, cucumber)' were influenced by having breakfast with family members. Conclusions: The results of this study suggested that by eating more fruits and vegetables, more preventive effects against secondary stroke attack are expected in stroke patients who live in the rural areas and who do not eat breakfast with family members. In addition, more outreach and education programs are needed for them.

The Relationship between Clothing Behavior and Sex Role Attitude of Children - As object of Senior Childhood years - (아동의 의복행동과 성 역할 태도와의 관계 (ll) - 아동후기를 중심으로 -)

  • Moon Young Aee
    • Journal of the Korean Society of Clothing and Textiles
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    • v.15 no.2 s.38
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    • pp.115-126
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    • 1991
  • The purpose of this study was to investigate the relationship between Sex Role attitude and childrens clothing behavior for senior childhood years upon two regions-city of Wonju and Mokpo-The questionnaires were administered to 315 elementary school children in Mokpo and 268 in Wonju. This data was analyze ststistically using to pearson's correlation, ANOVA (one-way or two-way) and Multiple Classification Analyze. The major findings of this research can be summarize as followings: 1. There are significant relationships between the unisex clothing behavior and the sex role attitude subscales. Liberal attitude toward sex role were positively related to unisex clothing behavior for senior childhood years children. 2. There are significant positive correlationships between the attitude of solving problem and comfort, autonomy, linterest and management. 3. The Sex and Grade have significants effect on the sex role attitude in two regios. Girls exhibited higher liberal attitudes toward sex role than boys. 4. The Sex have significant effects on clothing behavior and Grade have partially significant effect on clothing behavior. 5. The equality of the sexes attitude is significant relationships among the sex role attitude subscales except attitude of solving problems. There are significant inter relationships between the family role, occupation role and play role among the sex role subscales. 6. There are significant positive correlations between the unisex clothing behavior and conformity. And significant negative correlations between comfort and the unisex clothing behavior. Comfort is related to autonomy and management. Management is related to auton-omy and interest. 7. There are significant differences in sex role attitude according to two regions.

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The Effect of Instrumental Activities of Daily Living Program on General Self-Efficacy, Motivation for Rehabilitation, Social Support in a Patient with Subacute Stroke (도구적 일상생활 프로그램이 회복기 뇌졸중 환자의 자기효능감, 재활 동기, 사회적 지지에 미치는 영향)

  • Choi, Minkyung
    • Journal of The Korean Society of Integrative Medicine
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    • v.7 no.3
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    • pp.11-19
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    • 2019
  • Purpose : The purpose of this study is to examine the effect of instrumental-activity of daily living program on a patient with subacute stroke in the view of self-efficiency, motivation for rehabilitation, social support. Methods : Eight stroke patients who attended instrumental-activity of daily living program at P hospital in Busan Metropolitan City from march 2018 to January 2019 were recruited. Instrumental-activity of daily living program was offered to 8 stroke patients 1 session (at least 1 hours) a day, 5 times a week, for 4~5 weeks. The instrumental-activity of daily living program was based on occupational therapy practice framework (OTPF) and international classification of functioning, disability and health (ICF). We evaluated self-efficacy, rehabilitation motivation, social support before and after intervention. Self-efficacy was evaluated using the general self-efficacy scale. The collected data was processed using SPSS 20.0 and were analyzed using descriptive statistics, Wilcoxon signed rank test, Pearson's correlation coefficient. Results : There were statistically significant differences in self-efficiency, rehabilitation motivation, social support between before and after instrumental-activity of daily living program (p<.05). Examining the correlation between the self-efficiency, rehabilitation motivation and social support of the stroke patient, there was a correlation between the self-efficiency and social support (p<.05). Conclusion : This study showed that the instrumental-activity of daily living program have positive effects on self-efficacy, rehabilitation motivation, social support. When considering the instrumental-activity of daily living program with improved self-efficacy, rehabilitation motivation, social support of the participants, we suggest that further studies will be needed to examine more extensive instrumental-activity of daily living and rehabilitation to the society with a larger sample size.