Piyawat Lertvittayakumjorn, P. Nimnual, P. Vateekul, Pijitra Tsukamoto
{"title":"A system to analyze Twitter data for social science study","authors":"Piyawat Lertvittayakumjorn, P. Nimnual, P. Vateekul, Pijitra Tsukamoto","doi":"10.1109/ICITEED.2015.7409014","DOIUrl":"https://doi.org/10.1109/ICITEED.2015.7409014","url":null,"abstract":"Twitter data has been becoming more interesting in social science study since it can effectively reflect a nature of human behavior. Unfortunately, it is complicated to analyze Twitter data, and the existing tools are not suitable for this domain. In this paper, we present a system that is tailored to analyze Twitter data for the social science research. The system comprises four main functions including: (i) case study management, (ii) user/keyword search, (iii) interest group customization, and (iv) user-friendly analysis and visualization. Furthermore, three kinds of measures: connectivity, reciprocity, and mentioning, are presented to support the analysis process. Some of them are selectively employed from other domains, while others are invented in this work. The experiments were conducted on more than two millions Twitter activities related to the political situation in Thailand during May-June 2014. The results showed that our proposed measures can reveal useful knowledge in Twitter social group with the aid of the system that can provide scenario-based analysis and capture interactions among user groups.","PeriodicalId":207985,"journal":{"name":"2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131065491","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}
{"title":"A low-cost flash flood monitoring system","authors":"Ouychai Intharasombat, P. Khoenkaw","doi":"10.1109/ICITEED.2015.7408993","DOIUrl":"https://doi.org/10.1109/ICITEED.2015.7408993","url":null,"abstract":"Flash flood is a disaster that requires fast detection in order to prevent loss of life. We proposed a low-cost system, which is developed on Android phone and Arduino board. The system is about to measure water level by an echolocation method, collect information by its sensors, and transmit information to the server via mobile network or long-range WIFI. Low-level features, such as color, are analyzed at the phone as a decision trigger for network connection in order to reduce network cost. Other high-level features are extracted at the server in order to determine whether it is a flash flood.","PeriodicalId":207985,"journal":{"name":"2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128934735","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}
O. Sangaroon, N. Anantrasirichai, P. Rakluea, C. Rakluea, P. Poch
{"title":"Study on CPW-antenna for wideband coverage mobile 4G/WLAN/WiMAX/UWB","authors":"O. Sangaroon, N. Anantrasirichai, P. Rakluea, C. Rakluea, P. Poch","doi":"10.1109/ICITEED.2015.7409007","DOIUrl":"https://doi.org/10.1109/ICITEED.2015.7409007","url":null,"abstract":"A CPW antenna is designed at resonant frequency 2.3 GHz on low cost FR4 substrate by using simulation software. The simple rectangular slot loop antenna fed by coplanar waveguide is referred as a prototype antenna to show the designed technique for bandwidth enhancement. To enhance the first band, the rectangular slot is extended from the top of slot loop into the inner conductor, and to achieve more wideband by inserting triangular conductor at the bottom of rectangular slot. Finally, the technique to enhance wide bandwidth coverings mobile 4G, WLAN, WiMAX, and UWB is done by inserting U-shaped strip into inner rectangular slot. The simulated impedance bandwidth of our propose wideband antenna is 8.52 GHz from frequency range of 2.22 GHz-10.74 GHz which is the coverage of mobile 4G (2.3 GHz-2.5 GHz), WLAN standard of IEEE 802.11b/g/j/a/n (2.4 GHz-2.4835 GHz, 4.9 GHz-5.091 GHz, 5.15 GHz-5.35 GHz, and 5.725 GHz-5.825 GHz), WiMAX (2.5 GHz, 3.5 GHz, 5.8 GHz), and UWB (3.1 GHz-10.6 GHz). The measurements of this real antenna confirm that our proposed techniques can achieve wide frequency range of 2.26 GHz-11.14 GHz, which is suitable for the low-frequency of mobile 4G and also cover the high-frequency of UWB. That means, our antenna can supports all standard frequencies of applications in WLAN, WiMAX, and UWB. By this performance, the proposes antenna can be used in several wideband applications.","PeriodicalId":207985,"journal":{"name":"2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125492535","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}
{"title":"Framework for e-Leaming recommendation based on index of learning styles model","authors":"Lalita Na Nongkhai, T. Kaewkiriya","doi":"10.1109/ICITEED.2015.7409015","DOIUrl":"https://doi.org/10.1109/ICITEED.2015.7409015","url":null,"abstract":"Learning is an important activity for learners. Every learner must learn, but how to learn with the most effective outcome is still in question. A lot of theories about learning styles, for example, Kolb's Learning Styles, VARK Learning Styles and Index of Learning Styles (ILS) were created. This paper has adapted ILS with e-Learning method because e-Learning is an efficient technology that particularly focuses on learners who wish to study anywhere and anytime. A framework of e-Learning recommendation by analyzing Index of Learning Styles Model with data mining was developed. It can reasonably forecast the best learning style for learner by Decision Tree J48 algorithm with an accuracy of 76.92% (49 rules base). According to the experts' evaluation, the framework received the average 3.87 of satisfaction level.","PeriodicalId":207985,"journal":{"name":"2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125621476","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}
J. Tangjit, W. Tangsrirat, J. Satansup, W. Surakampontorn
{"title":"Simple design technique for realizing low-voltage low-power CMOS current multiplier","authors":"J. Tangjit, W. Tangsrirat, J. Satansup, W. Surakampontorn","doi":"10.1109/ICITEED.2015.7408923","DOIUrl":"https://doi.org/10.1109/ICITEED.2015.7408923","url":null,"abstract":"A simple circuit design technique for the realization of compact low-voltage low-power CMOS four-quadrant analog current multiplier circuit has been suggested. It is based on the use of the square-law characteristic in the NMOS current squaring function circuit operating in the saturation region. The suggested four-quadrant current multiplier circuit is designed for implementing in TSMC 0.25-μm CMOS technology with a low supply voltage of ±0.75V. To evaluate the circuit performance, the circuit has been simulated by PSPICE program. The simulation results show that the circuit has a linearity error of about 1%, a THD of 1.07% at 100 kHz, the total power consumption of 87.6 μW and -3dB bandwidth of 1.32 GHz.","PeriodicalId":207985,"journal":{"name":"2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE)","volume":"335 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115228124","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}
{"title":"Delay design-for-testability for functional RTL circuits","authors":"Ateeq-Ur-Rehman Shaheen, F. Hussin, N. H. Hamid","doi":"10.1109/ICITEED.2015.7408997","DOIUrl":"https://doi.org/10.1109/ICITEED.2015.7408997","url":null,"abstract":"Design-for-testability (DFT) reduces the test complexity of sequential register-transfer-level (RTL) circuits. Only enhanced scan technique from the scan based approaches guarantee two-pattern testability with a large area and test time overhead. This paper proposes a path delay DFT technique for functional RTL circuits. Data paths are modified into hierarchical single-port-change (SPC) two-pattern testable (TPT) paths. The state register of the controller is transformed into a parallel-scan register. A snooping mechanism for the control, status and the not clear control lines to register and multiplexer is presented. Control lines considered as the segment of the RTL data path, not clear control signals and status lines are snooped to test without affecting the functionality of the RTL circuit. Two observation multiplexers are inserted to support the testing of control lines, status lines, and the state register. The proposed approach is based on the path delay fault model and supports the hierarchical test generation. The results show that for the given circuit, the area overhead of the proposed method rapidly decreases with the increase in bit width of the circuit data path. The proposed technique performs at-speed testing with small test application time and can obtain the fault coverage as achieved with the enhanced scan method.","PeriodicalId":207985,"journal":{"name":"2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124388124","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}
{"title":"Spraying analysis for a coconut climbing robot","authors":"Navapan Suparat, T. Maneewarn","doi":"10.1109/ICITEED.2015.7408977","DOIUrl":"https://doi.org/10.1109/ICITEED.2015.7408977","url":null,"abstract":"Due to the recent epidemic outbreak of the coconut black-headed caterpillars in the southern provinces of Thailand, this research aims to develop a tree-specific pest control equipment using robotic and computer simulation technology. The climbing device allows the spraying head to reach the foliage of the coconut regardless of the height of the tree. The spraying should access the area of the foliage that is infested with the coconut black-headed caterpillars. This research proposes the new technique of modeling spray deposition on to the coconut leaves using image processing and a probabilistic model. By spraying the substance directly to the foliage from an optimum position, the proposed method shows that it can largely reduce the amount of chemical pesticide. The coconut climbing robot was developed as a wheel robot with a series elastic actuator. There are two motors on the robot, the drive motor drives the robot up and down the tree while the other motor is attached to a spring mechanism which keeps the holding force between robot and the tree. The robot can climb up and down the coconut tree at an average speed of 0.3 m/s and can carry a sprayer with an additional payload of 2 kg.","PeriodicalId":207985,"journal":{"name":"2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124504250","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}
Sawitree Wongroekdee, V. Imtawil, Puripong Suthisopapan
{"title":"A detection technique for high order QAM in the presence of transmitter angular skew","authors":"Sawitree Wongroekdee, V. Imtawil, Puripong Suthisopapan","doi":"10.1109/ICITEED.2015.7408920","DOIUrl":"https://doi.org/10.1109/ICITEED.2015.7408920","url":null,"abstract":"Angular skew arising from imperfect biasing of the transmitter can cause a significant performance degradation in high speed optical QAM systems. A simple approach to detect QAM signal under the effect of angular skew is Gram-Schmidt orthogonalization procedure (GSOP). However, this approach has poor performance when the size of QAM constellation exceeds 256. To solve this problem, a new detection algorithm is proposed. From the results, the proposed technique outperforms the GSOP. It provides the skew tolerance of up to 25-degrees at BER of 10-5 for the expense of 1 dB Eb/No penalty.","PeriodicalId":207985,"journal":{"name":"2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129142373","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}
{"title":"A comparative study of feature selection techniques for classify student performance","authors":"Wattana Punlumjeak, Nachirat Rachburee","doi":"10.1109/ICITEED.2015.7408984","DOIUrl":"https://doi.org/10.1109/ICITEED.2015.7408984","url":null,"abstract":"Student performance classification is a challenging task for teacher and stakeholder for better academic planning and management. Data mining can be used to find knowledge from student data to improve the performance of classifying model. Before applying a classification model, feature selection method is proposed in data preprocessing process to find out the most significant and intrinsic features. In this research, we propose a comparison of four feature selection methods: genetic algorithms, support vector machine, information gain, and minimum redundancy and maximum relevance with four supervised classifiers: naive bays, decision tree, k-nearest neighbor, and neural network. The experimental results show that the minimum redundancy and maximum relevance feature selection method with 10 feature selected give the best result on 91.12% accuracy with a k-nearest neighbor classifier. The result of the present study shows that the advantage of future selection to find a minimum and significant of feature is more effective to classify the student performance.","PeriodicalId":207985,"journal":{"name":"2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131847409","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}
Ake Osothongs, Vorapong Suppakitpaisarn, N. Sonehara
{"title":"A proposed method for personal attributes disclosure valuation: A study on personal attributes disclosure in Thailand","authors":"Ake Osothongs, Vorapong Suppakitpaisarn, N. Sonehara","doi":"10.1109/ICITEED.2015.7408981","DOIUrl":"https://doi.org/10.1109/ICITEED.2015.7408981","url":null,"abstract":"Personal information has become an important asset for service providers in this data-driven age, with repeated requests for large amounts of personal information from consumers. These personal data information collection activities raise privacy concerns for the customers. Service providers occasionally request personal information which consumers feel uncomfortable to disclose. Several recent studies showed that consumers reject these collection activities as they feel uncomfortable about disclosing personal information. Service providers must treat carefully here. Every consumer has different perspectives and judgements regarding the value of each personal attribute; the data privacy issue is very complex. This study aimed to estimate a disclosure value for each personal attribute, and provide assistance to service providers. We used a questionnaire result that collected consumers' feelings when they were asked to disclose each personal attribute. We used a probability technique to determine the relation of disclosure value among personal attributes and graph mining techniques were used to construct a tree graph. Then, we proposed a method to estimate the value of personal attribute disclosure and analysed a case study using our proposed method. The results showed the differences in the value of personal attribute disclosure between different groups of consumers.","PeriodicalId":207985,"journal":{"name":"2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115879396","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}