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Supervised entity tagger for indonesian labor strike tweets using oversampling technique and low resource features

Telkomnika (Telecommunication Computing Electronics and Control) 2016年第4期14卷 1462-1471页

作者： Purwarianti, Ayu Madlberger, Lisa Ibrahim, Muhammad School of Electrical Engineering and Informatics Bandung Institute of Technology Jl. Ganesa No. 10 Bandung Indonesia Institute of Software Technology and Interactive Systems Vienna University of Technology Favoritenstrasse 9-11/188 ViennaA-1040 Austria Faculty of Computer Science University of Indonesia Kampus UI Depok16424 Indonesia

We propose an entity tagger for Indonesian tweets sent during labor strike events using supervised learning methods. The aim of the tagger is to extract the date, location and the person/organization involved in the strike. We use SMOTE (Synthetic Minority Oversampling Technique) as an oversampling technique and conducted several experiments using Twitter data to evaluate different settings with varying machine learning algorithms and training data sizes. In order to test the low resource features, we also conducted experiments for the system without employing the word list feature and the word normalization. Our results indicated that different treatment of different types of machine learning algorithms with low resource features can lead to a good accuracy score. Here, we tried Naïve Bayes, C4.5, Random Forest and SMO (Sequential Minimal Optimization) algorithms using Weka as the machine learning tools. For the Naïve Bayes, due to the data distribution based of the class probability, the best accuracy was achieved by removing data duplication. For C4.5 and Random Forest, SMOTE gave higher accuracy result compared to the original data and the data with data duplication removal. For SMO, there is no significant difference among various sizes of training data. © 2016 Universitas Ahmad Dahlan.

关键词： Supervised learning

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An information system to ease the creation and deployment of context-aware, location-based surveys

An information system to ease the creation and deployment of...

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Iberian Conference on Information systems and Technologies

作者： Christopher Scaffidi Center for Applied Systems and Software School of Electrical Engineering and Computer Science Oregon State University Corvallis OR United States

ISBN: (纸本)9781509012268

Mobile surveys are an important research tool. In mobile health, triggering survey questions based on patient health, context, and other external information can aid in tailoring a survey to each specific user's particular situation. However, creating such a survey with existing systems is burdensome. Therefore, this paper presents a novel information system to ease the creation and deployment of context-aware, location-based surveys. In a within-subjects experiment, 12 participants with minimal programming expertise created context-aware, location-based surveys more quickly and with fewer errors than with a competing commercially-available system that lacked support for questions triggered by physical phenomena, showing the potential usefulness of the approach for future research studies.

关键词： Context-aware/location-based computing Mobile health

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The impact of human-centric design on the adoption of information systems: A case study of the spreadsheet

The impact of human-centric design on the adoption of inform...

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Iberian Conference on Information systems and Technologies

作者： Christopher Scaffidi Center for Applied Systems and Software School of Electrical Engineering and Computer Science Oregon State University Corvallis OR United States

ISBN: (纸本)9781509012268

The spreadsheet is one of the most popular information systems ever: It is exceedingly widely adopted, it has attracted significant amounts of investment and innovation by companies, and it has become a platform for new research. To uncover reasons for the spreadsheet's success, this paper applies a research method, the case study, to analyze the historical development and adoption of this important information system. The study revealed insights for the design and commercialization of future systems. These include the need for specific collaborative relationships, the multiple forms of evidence and validation required, and the role of usability as a dominant quality attribute driving adoption.

关键词： Human Centered Computing Human-computer Interaction Human systems Design Usability Spreadsheets

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Guest editorial: The 2016 capstone design conference

Guest editorial: The 2016 capstone design conference

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作者： Brackin, Patsy Howe, Susannah Rogers, Peter Stanfill, R. Keith Beyerlein, Steven Kanai, Junichi Vallino, Jim Palo, Scott Department of Mechanical Engineering Rose-Hulman Institute of Technology 5500 Wabash Avenue CM 165 Terre HauteIN47803 United States Picker Engineering Program Smith College 151 Ford Hall NorthamptonMA01063 United States Department of Engineering Education Ohio State University 3070 Smith Laboratory 174 W. 18th Avenue ColumbusOH43210 United States Engineering Innovation Institute University of Florida P.O. Box 116000 GainesvilleFL32611-6000 United States Department of Mechanical Engineering University of Idaho 875 Perimeter Drive MoscowID83844-0902 United States Department of Electrical Computer and Systems Engineering Rensselaer Polytechnic Institute TroyNY United States Department of Software Engineering Rochester Institute of Technology 134 Lomb Memorial Drive RochesterNY14623-5608 United States Department of Aerospace Engineering Sciences University of Colorado 429 UCB BoulderCO80309 United States

The goal of the 2016 Capstone Design Conference held in Columbus, OH was to build upon the success of previous conferences (2007 and 2010 in Boulder, CO, 2012 in Champaign, IL, and 2014 in Columbus, OH) and expand the community of educators, students, and industry members engaged in discussing, analyzing, and improving capstone design education. Sessions at the 2016 Capstone Design Conference were designed for vibrant sharing of ideas and experiences across the capstone community via interactive panel sessions, poster session socials, hands-on workshops, and other formal and informal networking activities. This editorial discusses conference planning, structure, and feedback. Technical papers that follow in this issue document scholarship surrounding noteworthy capstone course innovations. Most of these began as four page peer-reviewed papers included in the conference proceedings. © 2017 TEMPUS Publications.

关键词： Teaching

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Effects of jamming on a multi-agent flocking model with distributed estimation of global features

Effects of jamming on a multi-agent flocking model with dist...

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Future Technologies Conference (FTC)

作者： Zhaoyang Fu Thomas Yang Jing Wang Dept. of Electrical Computer Software & Systems Engr. Embry-Riddle Aeronautical University Daytona Beach FL Department of Electrical and Computer Engineering Bradley University Peoria IL

ISBN: (纸本)9781509041725

In this paper, we study the influence of communication jamming on the operation of multi-agent systems through computer simulations. In our investigation, a simple flocking model with collision avoidance is adopted, and a recently proposed algorithm for distributed estimation of global features is studied as well. The objective of the research is to study the effects of jamming on the achievement of velocity and estimation consensuses. Simulation results indicate that communication jamming delays the achievement of both velocity and estimation consensuses, and the amount of delay roughly increases linearly with the jamming range.

关键词： Jamming Estimation Delays Mathematical model Multi-agent systems Collision avoidance Convergence

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Application of an event-triggered distributed estimation algorithm in a simple multi-agent flocking model

Application of an event-triggered distributed estimation alg...

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IEEE Southeastcon

作者： Thomas Yang Zhaoyang Fu Jing Wang Dept. of Electrical Computer Software & Systems Engr. Embry-Riddle Aeronautical University Daytona Beach FL Department of Electrical and Computer Engineering Bradley University Peoria IL

In this paper, we apply a recently proposed distributed estimation algorithm to a simple multi-agent flocking model with collision avoidance. 3D MATLAB simulations are performed with randomly generated agents' initial positions and velocities. The collision avoidance is realized through a repelling force between agents moderated by an alignment measure. The distributed estimation algorithm estimates certain global feature indicator of the multi-agent systems through consensus of agents' local estimations. The agents exchange information about their local estimations at discrete time instants, which are controlled by an event-triggered mechanism. The algorithm's effectiveness is illustrated through the example of centroid estimation, and simulations show that all agents' local estimations converge to the true position of the group centroid.

关键词： Mathematical model Computational modeling Multi-agent systems Collision avoidance Force Estimation error

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Data collection in open ended learning environment for learning analytics

Data collection in open ended learning environment for learn...

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24th International Conference on computers in Education - Workshop, ICCE 2016

作者： Tscholl, Michael Rajendran, Ramkumar Biswas, Gautam Goldberg, Benjamin S. Sottilare, Robert A. Department of Electrical Engineering and Computer Science Institute for Software Integrated Systems Vanderbilt University 1025 16th Avenue South NashvilleTN37212 United States U.S. Army Research Laboratory - Human Research and Engineering Simulation and Training Technology Center OrlandoFL32826 United States

ISBN: (纸本)9789869401210

As the development and use of Open-Ended Learning Environments (OELEs) continues to increase, supporting students' learning in these environments with Intelligent Tutoring is rapidly becoming an important area of research. Many existing learning environments guide students in step-by-step processes to reach their learning goal;consequently, data preprocessing is well defined. In OELEs, in contrast, students may achieve task goals through multiple pathways, and there exist multiple ways to assess performance. We present a simulation OELE designed to teach students decision-making in a complex problem solving task. To provide Intelligent Tutoring Support, we are required to track performance along several dimensions. We present our approach to extract data for performance assessments that can be leveraged to provide Intelligent Tutoring Support. We generalize our approach and present guidelines applicable for similar OELEs. Copyright 2016 Asia-Pacific Society for computers in Education. All rights reserved.

关键词： Students

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A compact patch antenna for ultrawideband application

A compact patch antenna for ultrawideband application

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International Conference on Innovations in Science, engineering and Technology (ICISET)

作者： M. Tarikul Islam M. Samsuzzaman M. M. Islam M.Z. Mahmmud M.T. Islam Dept. of Computer and Communication Engineering Faculty of Computer Science and Engineering Dept. of Software Engineering Daffodil International University Dept. of Electrical Electronic and Systems Engineering Universiti Kebangsaan Malaysia Malaysia

ISBN: (纸本)9781509061235

A compact microstrip line fed tapered-shaped slotted ultra-wideband(UWB) antenna is presented. The new design is composed of a rectangular slotted patch with a compact size of 21.44 × 23.53 mm 2 and fed by microstrip transmission line of 50 Ω. The proposed antenna is simulated onto a less expensive FR4 substrate which has a height of 1.6 mm. There achieved a wider bandwidth of 8.51 GHz (3.49-12 GHz) with good impedance matching, constant gain, 5.76 dBi of maximum gain and stable radiation pattern results in the proposed antenna more appropriate for using UWB communication applications compared to existing antennas. The proposed antenna is designed and simulated in HFSS and CST Microwave Studio software to see the antenna performance.

关键词： Ultra wideband antennas Microstrip antennas Bandwidth Slot antennas Antenna radiation patterns Microstrip Gain

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Algorithms for determining semantic relations of formal concepts by cognitive machine learning based on concept algebra

Algorithms for determining semantic relations of formal conc...

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IEEE International Conference on Cognitive Informatics

作者： Mehrdad Valipour Yingxu Wang Omar A. Zatarain Marina L. Gavrilova Denotational Mathematics Software Science and Cognitive Systems Dept. of Electrical and Computer Engineering University of Calgary Calgary Alberta Canada Information Systems Lab Packard Dept. of Electrical Engineering Stanford University Stanford CA USA

ISBN: (纸本)9781509038473

It is recognized that the semantic space of knowledge is a hierarchical concept network. This paper presents theories and algorithms of hierarchical concept classification by quantitative semantic relations via machine learning based on concept algebra. The equivalence between formal concepts are analyzed by an Algorithm of Concept Equivalence Analysis (ACEA), which quantitatively determines the semantic similarity of an arbitrary pair of formal concepts. This leads to the development of the Algorithm of Relational Semantic Classification (ARSC) for hierarchically classify any given concept in the semantic space of knowledge. Experiments applying Algorithms ACEA and ARSC on 20 formal concepts are successfully conducted, which encouragingly demonstrate the deep machine understanding of semantic relations and their quantitative weights beyond human perspectives on knowledge learning and natural language processing.

关键词： Writing Instruments Decision support systems Ink Animals Handheld computers Lead

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Evaluation criteria for condition and importance assessment of high voltage transmission line

Evaluation criteria for condition and importance assessment ...

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International Conference on electrical engineering/Electronics, computer, Telecommunications and Information Technology, ECTI-CON

作者： Jukrapun Chitpong Cattareeya Suwanasri Thanapong Suwanasri Electrical and Computer Engineering King Mongkut's University of Technology North Bangkok Bangkok Thailand Electrical and Software Systems Engineering King Mongkut's University of Technology North Bangkok Bangkok Thailand

This paper proposes a program development for condition and importance assessment of high voltage transmission line in Thailand. The condition criteria consist of age, stress, symptom, failed-type, obsolescence, as well as environment and safety while importance criteria consider line loading, N-1 criteria, system stability, possible of force outage, pollution and social impact. The score and weight techniques are applied to the assessment. In addition, Analytical Hierarchy Process is used to determine weighting of criteria. The components of transmission system such as conductor, conductor accessories, insulator structure, foundation, lightning, accessories and right of way are evaluated while subcomponents of each component and classified. The 10 of 500 kV transmission lines in Thailand transmission network is used in example in the assessment program. The results show the criteria renovation index, equipment performance index, and equipment importance index in forms of percentage and finally risk of ten lines is shown in risk matrix. The results can provide an effective maintenance schedule for transmission system.

关键词： Conductors Power transmission lines Insulators Stress Safety Aging Lightning

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