Pub Date : 2018-07-08DOI: 10.1109/IIAI-AAI.2018.00020
Linfeng Yu, M. Iwaihara
Link graphs of web pages have been utilized to evaluate importance of each page. Existing link analysis algorithms, including HITS and PageRank, exploit static link connectivity between pages. On the other hand, service providers often record HTTP requests that contain the resource and referrer of each request, from which we can construct a click graph that has edge weights representing the times of clicks on each link, or link traffic. Click graphs reflect users' choices of interesting links, thus the graphs are useful for evaluating importance of pages. However, clicks are often skewed onto highly popular links, so that click graphs only could not properly evaluate less clicked pages. In this paper, we propose an algorithm called click count-weighted HITS algorithm, which integrates HITS algorithm with click graphs, for finding high quality documents. Our evaluations on finding featured articles of English Wikipedia show that our click count-weighted HITS algorithm shows better performance on a large Wikipedia corpus than algorithms that utilize link graphs or click graphs only.
{"title":"Finding High Quality Documents through Link and Click Graphs","authors":"Linfeng Yu, M. Iwaihara","doi":"10.1109/IIAI-AAI.2018.00020","DOIUrl":"https://doi.org/10.1109/IIAI-AAI.2018.00020","url":null,"abstract":"Link graphs of web pages have been utilized to evaluate importance of each page. Existing link analysis algorithms, including HITS and PageRank, exploit static link connectivity between pages. On the other hand, service providers often record HTTP requests that contain the resource and referrer of each request, from which we can construct a click graph that has edge weights representing the times of clicks on each link, or link traffic. Click graphs reflect users' choices of interesting links, thus the graphs are useful for evaluating importance of pages. However, clicks are often skewed onto highly popular links, so that click graphs only could not properly evaluate less clicked pages. In this paper, we propose an algorithm called click count-weighted HITS algorithm, which integrates HITS algorithm with click graphs, for finding high quality documents. Our evaluations on finding featured articles of English Wikipedia show that our click count-weighted HITS algorithm shows better performance on a large Wikipedia corpus than algorithms that utilize link graphs or click graphs only.","PeriodicalId":309975,"journal":{"name":"2018 7th International Congress on Advanced Applied Informatics (IIAI-AAI)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114424955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-07-08DOI: 10.1109/IIAI-AAI.2018.00081
Noriko Uosaki, Kousuke Mouri, Chengjiu Yin, H. Ogata
This paper describes our continuous study in which we have aimed to support international students' job hunting in Japan with our developed career support system. Career support for international students in Japan is an urgent issue since it is a Japanese government policy to increase the number of international workers. A questionnaire survey revealed that top two anxieties that international students have were language-related and lack of information. The result of our previous evaluation demonstrated that the users benefited from the system and that it will be expected to contribute to the solution of the two anxieties, while it revealed some agendas to deal with. Reflecting its result, a new career support system is scheduled to be designed in 2018 aiming for the enrichment of the career support contents and enhancement of seamless interaction among users. It is expected to support international students' job hunting process more effectively than our previous one.
{"title":"Seamless Support for International Students' Job Hunting in Japan Using Learning Log System and eBook","authors":"Noriko Uosaki, Kousuke Mouri, Chengjiu Yin, H. Ogata","doi":"10.1109/IIAI-AAI.2018.00081","DOIUrl":"https://doi.org/10.1109/IIAI-AAI.2018.00081","url":null,"abstract":"This paper describes our continuous study in which we have aimed to support international students' job hunting in Japan with our developed career support system. Career support for international students in Japan is an urgent issue since it is a Japanese government policy to increase the number of international workers. A questionnaire survey revealed that top two anxieties that international students have were language-related and lack of information. The result of our previous evaluation demonstrated that the users benefited from the system and that it will be expected to contribute to the solution of the two anxieties, while it revealed some agendas to deal with. Reflecting its result, a new career support system is scheduled to be designed in 2018 aiming for the enrichment of the career support contents and enhancement of seamless interaction among users. It is expected to support international students' job hunting process more effectively than our previous one.","PeriodicalId":309975,"journal":{"name":"2018 7th International Congress on Advanced Applied Informatics (IIAI-AAI)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132060584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-07-01DOI: 10.1109/IIAI-AAI.2018.00109
Reona Ogawa, Yoshinori Watanuki, Chieko Kato
This research focused on resistance training, which has psychological and physical benefits such as improvement of self-efficacy and forming bulk in our body. However, some research showed people cannot keep up with resistance training on a regular basis. Also, admission to university leads to varying students' lifestyles, such as a decrease in exercise habits. This research investigated how university students think about resistance training to suggest psychological supports by which they can continue their resistance training. An original questionnaire was used to learn what kind of problems students have with resistance training. Based on the results of survey, cluster analysis was used to form several groups in accordance with their respective problems. As a result, group 1, which showed a negative attitude only toward resistance training, and group 2, which showed a negative attitude toward all exercise, were formed. Group 1 comes under the "preparation period" in the transtheoretical model. Therefore, to continue resistance training, group 1 can maintain highly intrinsic motivation by comparing each sport with resistance training. Group 2 comes under the "indifference period" in the transtheoretical model. Accordingly, to be aware of the importance of resistance training, group 2 should be provided with clear information about it.
{"title":"Research on Resistance Training for University Students Focusing on the Maintenance and Improvement of Motivation through Psychological Support","authors":"Reona Ogawa, Yoshinori Watanuki, Chieko Kato","doi":"10.1109/IIAI-AAI.2018.00109","DOIUrl":"https://doi.org/10.1109/IIAI-AAI.2018.00109","url":null,"abstract":"This research focused on resistance training, which has psychological and physical benefits such as improvement of self-efficacy and forming bulk in our body. However, some research showed people cannot keep up with resistance training on a regular basis. Also, admission to university leads to varying students' lifestyles, such as a decrease in exercise habits. This research investigated how university students think about resistance training to suggest psychological supports by which they can continue their resistance training. An original questionnaire was used to learn what kind of problems students have with resistance training. Based on the results of survey, cluster analysis was used to form several groups in accordance with their respective problems. As a result, group 1, which showed a negative attitude only toward resistance training, and group 2, which showed a negative attitude toward all exercise, were formed. Group 1 comes under the \"preparation period\" in the transtheoretical model. Therefore, to continue resistance training, group 1 can maintain highly intrinsic motivation by comparing each sport with resistance training. Group 2 comes under the \"indifference period\" in the transtheoretical model. Accordingly, to be aware of the importance of resistance training, group 2 should be provided with clear information about it.","PeriodicalId":309975,"journal":{"name":"2018 7th International Congress on Advanced Applied Informatics (IIAI-AAI)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115312053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-07-01DOI: 10.1109/IIAI-AAI.2018.00208
Hee-Earn Kim, Chan-Ho Song, Guk-Jin Son, Seong-Ho Jeong, Jin-Hwan Son, Youngduk Kim
Fire detection on roads at night has many limitations in the fire detection technique using ordinary RGB cameras. It has the problem of misinterpretation of flame due to various lighting sources such as vehicle lighting (LED, halogen) and street lamp (LED, fluorescent lamp). Hyperspectral cameras have hundreds of bands that can distinguish light sources based on the spectra of the light source. Therefore, it is possible to distinguish between the light of the flame, the vehicle light on the road, and the light of the roadside tree. In this paper, a method to simulate a fire in an environment with vehicle lighting and streetlight and detect a fire using NKNBD (Normalized K and NIR Band Difference) in hyperspectral camera is discussed.
{"title":"Hyperspectral Image-Based Night-Time Fire Detection Using NKNBD","authors":"Hee-Earn Kim, Chan-Ho Song, Guk-Jin Son, Seong-Ho Jeong, Jin-Hwan Son, Youngduk Kim","doi":"10.1109/IIAI-AAI.2018.00208","DOIUrl":"https://doi.org/10.1109/IIAI-AAI.2018.00208","url":null,"abstract":"Fire detection on roads at night has many limitations in the fire detection technique using ordinary RGB cameras. It has the problem of misinterpretation of flame due to various lighting sources such as vehicle lighting (LED, halogen) and street lamp (LED, fluorescent lamp). Hyperspectral cameras have hundreds of bands that can distinguish light sources based on the spectra of the light source. Therefore, it is possible to distinguish between the light of the flame, the vehicle light on the road, and the light of the roadside tree. In this paper, a method to simulate a fire in an environment with vehicle lighting and streetlight and detect a fire using NKNBD (Normalized K and NIR Band Difference) in hyperspectral camera is discussed.","PeriodicalId":309975,"journal":{"name":"2018 7th International Congress on Advanced Applied Informatics (IIAI-AAI)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125865061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-07-01DOI: 10.1109/IIAI-AAI.2018.00073
Tieh-huai Chang, Yu-Ting Yang, Fei-Ching Chen
Have you experienced the willful exploitation on well-designed learning platforms? It's probably a universal phenomenon but much neglected by the designers. Research quite often reports on learners' performance from the designer's aspect with little concern on the emergent aspect of the users. This study ironically reported that the playfulness implemented in the designer's game-based-learning was not well received in the users' world. Instead, the elementary schoolers developed their own way to enjoy THEIR playful learning.
{"title":"Your Fun ≠ My Fun: The Landscape of a Game-Based Learning Classroom","authors":"Tieh-huai Chang, Yu-Ting Yang, Fei-Ching Chen","doi":"10.1109/IIAI-AAI.2018.00073","DOIUrl":"https://doi.org/10.1109/IIAI-AAI.2018.00073","url":null,"abstract":"Have you experienced the willful exploitation on well-designed learning platforms? It's probably a universal phenomenon but much neglected by the designers. Research quite often reports on learners' performance from the designer's aspect with little concern on the emergent aspect of the users. This study ironically reported that the playfulness implemented in the designer's game-based-learning was not well received in the users' world. Instead, the elementary schoolers developed their own way to enjoy THEIR playful learning.","PeriodicalId":309975,"journal":{"name":"2018 7th International Congress on Advanced Applied Informatics (IIAI-AAI)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125939914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-07-01DOI: 10.1109/IIAI-AAI.2018.00187
Y. Li, T. Fujimoto
With the rapid development of globalization, there is a great need for the translation application around the world. Meanwhile, smartphone is becoming a superb tool with its small, lightweight and internet-connected features. Benefiting from an equipped camera, speaker and microphone, translation applications have produced a range of possibilities among text, voice and image translation methods. However, few existing applications offer simultaneous multilingual display translation support and most of them focus on online machine translation, which often generate low accuracy and are not available without the Internet. Based on the above consideration, a concept of multi-lingual translation application is proposed in this paper to improve users' translation efficiency and practicality.
{"title":"A Concept of Multi-lingual Translation Application","authors":"Y. Li, T. Fujimoto","doi":"10.1109/IIAI-AAI.2018.00187","DOIUrl":"https://doi.org/10.1109/IIAI-AAI.2018.00187","url":null,"abstract":"With the rapid development of globalization, there is a great need for the translation application around the world. Meanwhile, smartphone is becoming a superb tool with its small, lightweight and internet-connected features. Benefiting from an equipped camera, speaker and microphone, translation applications have produced a range of possibilities among text, voice and image translation methods. However, few existing applications offer simultaneous multilingual display translation support and most of them focus on online machine translation, which often generate low accuracy and are not available without the Internet. Based on the above consideration, a concept of multi-lingual translation application is proposed in this paper to improve users' translation efficiency and practicality.","PeriodicalId":309975,"journal":{"name":"2018 7th International Congress on Advanced Applied Informatics (IIAI-AAI)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126648331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-07-01DOI: 10.1109/IIAI-AAI.2018.00040
Wen-Chien Chang, Chih-Ming Chen, Shun-Min Yang
Recently, the popularity of the smart handheld devices has affected the way people learn English. There have been varieties of English vocabulary learning assisted APPs developed to enlarge learners' English vocabulary size in mobile learning context. However, the ability of learners' self-regulated learning (SRL) is an important factor affecting learning performance in autonomously learning English vocabulary by using mobile APPs. Therefore, this study develops an English vocabulary learning APP with self-regulated learning mechanism (EVLAPP-SRLM) to aid learners improve their SRL abilities, hoping to further promote their learning performance and motivation in mobile learning context. To evaluate the performance of the proposed EVLAPP-SRLM, this study randomly recruited a total of 46 Grade 5 students from two classes in an elementary school of Taoyuan City, Taiwan who used English as a foreign language (EFL) to participate in the experiment. The two classes were randomly assigned as the experimental and control groups respectively using the EVLAPP-SRLM and the English vocabulary learning APP without self-regulated learning mechanism (EVLAPP-NSRLM) to support English vocabulary learning during the period of two weeks. Experimental results show that learners in the experimental group perform significantly better learning performance and motivation than those in the control group.
{"title":"An English Vocabulary Learning APP with Self-Regulated Learning Mechanism for Promoting Learning Performance and Motivation","authors":"Wen-Chien Chang, Chih-Ming Chen, Shun-Min Yang","doi":"10.1109/IIAI-AAI.2018.00040","DOIUrl":"https://doi.org/10.1109/IIAI-AAI.2018.00040","url":null,"abstract":"Recently, the popularity of the smart handheld devices has affected the way people learn English. There have been varieties of English vocabulary learning assisted APPs developed to enlarge learners' English vocabulary size in mobile learning context. However, the ability of learners' self-regulated learning (SRL) is an important factor affecting learning performance in autonomously learning English vocabulary by using mobile APPs. Therefore, this study develops an English vocabulary learning APP with self-regulated learning mechanism (EVLAPP-SRLM) to aid learners improve their SRL abilities, hoping to further promote their learning performance and motivation in mobile learning context. To evaluate the performance of the proposed EVLAPP-SRLM, this study randomly recruited a total of 46 Grade 5 students from two classes in an elementary school of Taoyuan City, Taiwan who used English as a foreign language (EFL) to participate in the experiment. The two classes were randomly assigned as the experimental and control groups respectively using the EVLAPP-SRLM and the English vocabulary learning APP without self-regulated learning mechanism (EVLAPP-NSRLM) to support English vocabulary learning during the period of two weeks. Experimental results show that learners in the experimental group perform significantly better learning performance and motivation than those in the control group.","PeriodicalId":309975,"journal":{"name":"2018 7th International Congress on Advanced Applied Informatics (IIAI-AAI)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116844621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-07-01DOI: 10.1109/IIAI-AAI.2018.00203
Kahori Ogashiwa, Toru Sugihara, Kumiko Kanekawa, Yuki Kitanaka, Kazuhisa Noguchi, Soichiro Aihara, M. Mori, S. Hirokawa
Universities play an important role as centers of local communities. In recent years, new faculties and graduate schools have been established for students to learn about solving problems through local community involvement. In this study, we conduct an inter-university comparison and analyze the common points and differences between eight targeted universities. These include national universities (nine departments) that use the word "community" ("chi-i-ki" in Japanese) in the name of a department. We use the term frequency-inverse document frequency (tf-idf), which is one of the popular indexes in text mining, and apply it to two documents, i.e., the diploma policy (DP) and the president's message (PM). We extracted two groups from the target universities. One group had relatively high tf-idf value in terms of the word "community" across the two documents. The other group had a relatively low tf-idf value in their DP. Furthermore, the word "community" does not appear in the PM. All universities have established faculties in order to connect with local communities, although the strategies of each university demonstrate different priorities from each other.
{"title":"Quality Assurance in Education through the Diploma Policy and President's Message - An Analysis Focused on Local Community","authors":"Kahori Ogashiwa, Toru Sugihara, Kumiko Kanekawa, Yuki Kitanaka, Kazuhisa Noguchi, Soichiro Aihara, M. Mori, S. Hirokawa","doi":"10.1109/IIAI-AAI.2018.00203","DOIUrl":"https://doi.org/10.1109/IIAI-AAI.2018.00203","url":null,"abstract":"Universities play an important role as centers of local communities. In recent years, new faculties and graduate schools have been established for students to learn about solving problems through local community involvement. In this study, we conduct an inter-university comparison and analyze the common points and differences between eight targeted universities. These include national universities (nine departments) that use the word \"community\" (\"chi-i-ki\" in Japanese) in the name of a department. We use the term frequency-inverse document frequency (tf-idf), which is one of the popular indexes in text mining, and apply it to two documents, i.e., the diploma policy (DP) and the president's message (PM). We extracted two groups from the target universities. One group had relatively high tf-idf value in terms of the word \"community\" across the two documents. The other group had a relatively low tf-idf value in their DP. Furthermore, the word \"community\" does not appear in the PM. All universities have established faculties in order to connect with local communities, although the strategies of each university demonstrate different priorities from each other.","PeriodicalId":309975,"journal":{"name":"2018 7th International Congress on Advanced Applied Informatics (IIAI-AAI)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128447475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-07-01DOI: 10.1109/IIAI-AAI.2018.00140
Ruey-Maw Chen, Jia-Ci Guo
Split Delivery Vehicle Routing Problem (SDVRP) distributes the customers' demand to different vehicles for service. This study divides SDVRP into two stages for solutions. On stage one, Particle Swarm Optimization (PSO) was applied to separate customers into two bases, divisible and indivisible customer bases; and then another PSO was applied to resolve the Vehicle Routing Problem (VRP) of indivisible customers and a designed nearest insertion heuristic is utilized to insert the divisible customers into the proper location in the VRP. Meanwhile, a sweep algorithm with an initial heuristic rate are used to provide diverse PSO initial solutions so as to improve the efficiency on stage two. To verify the efficiency of the proposed method, SDVRP problem set given by J. M. Belenguer was applied for tests. The suggest methods came up with the experimental results shows that average deviations for the test instances are all within 10%. Restated, the proposed scheme of this work is able to resolve SDVRP optimization effectively.
{"title":"Optimal Routing for Split Delivery Vehicle Routing Problems","authors":"Ruey-Maw Chen, Jia-Ci Guo","doi":"10.1109/IIAI-AAI.2018.00140","DOIUrl":"https://doi.org/10.1109/IIAI-AAI.2018.00140","url":null,"abstract":"Split Delivery Vehicle Routing Problem (SDVRP) distributes the customers' demand to different vehicles for service. This study divides SDVRP into two stages for solutions. On stage one, Particle Swarm Optimization (PSO) was applied to separate customers into two bases, divisible and indivisible customer bases; and then another PSO was applied to resolve the Vehicle Routing Problem (VRP) of indivisible customers and a designed nearest insertion heuristic is utilized to insert the divisible customers into the proper location in the VRP. Meanwhile, a sweep algorithm with an initial heuristic rate are used to provide diverse PSO initial solutions so as to improve the efficiency on stage two. To verify the efficiency of the proposed method, SDVRP problem set given by J. M. Belenguer was applied for tests. The suggest methods came up with the experimental results shows that average deviations for the test instances are all within 10%. Restated, the proposed scheme of this work is able to resolve SDVRP optimization effectively.","PeriodicalId":309975,"journal":{"name":"2018 7th International Congress on Advanced Applied Informatics (IIAI-AAI)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128537690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-07-01DOI: 10.1109/IIAI-AAI.2018.00068
Kazuhisa Noguchi, E. Ito
The IRT (item response theory) is a theory for scoring of tests, and it is used for some test systems such as TOEFL. Classical test scoring is the total of raw scores for each items (questions). On the other hand, IRT can make fine performance finer than the raw score method. IRT is based on the relationship between individual test takers' performances on a test item (question), and the test takers' levels of performance. Even with the same number of correct answers, the IRT score may be different depending on the degree of difficulty of item (question). Computational complexity of parameter estimation of IRT is one of important issue. To solve this issue, we propose a parameter estimation method of IRT using the Holonomic approach. Generate differential equations which solve the likelihood function of IRT. By solving this differential equation, it is able to estimate the ability parameter.
{"title":"Holonomic Approach for Item Response Theory Parameter Estimation","authors":"Kazuhisa Noguchi, E. Ito","doi":"10.1109/IIAI-AAI.2018.00068","DOIUrl":"https://doi.org/10.1109/IIAI-AAI.2018.00068","url":null,"abstract":"The IRT (item response theory) is a theory for scoring of tests, and it is used for some test systems such as TOEFL. Classical test scoring is the total of raw scores for each items (questions). On the other hand, IRT can make fine performance finer than the raw score method. IRT is based on the relationship between individual test takers' performances on a test item (question), and the test takers' levels of performance. Even with the same number of correct answers, the IRT score may be different depending on the degree of difficulty of item (question). Computational complexity of parameter estimation of IRT is one of important issue. To solve this issue, we propose a parameter estimation method of IRT using the Holonomic approach. Generate differential equations which solve the likelihood function of IRT. By solving this differential equation, it is able to estimate the ability parameter.","PeriodicalId":309975,"journal":{"name":"2018 7th International Congress on Advanced Applied Informatics (IIAI-AAI)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124656349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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