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Evaluating the Economic Impacts of Next-Generation Vehicles in Japan Using a Spatial Computable General Equilibrium Model
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Study on Integration of Pb(Zr,Ti)O3 Thin Film Pyroelectric Infrared Detectors on γ-Al2O3/Si(100) Substrate
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Geo-location Estimation of Tweets with Stop Words Detection
Get PDFツイートに含まれる特徴と位置情報を対応させることで，実世界を観測するセンサとしてTwitterを活用することができる．しかし位置情報が付加されたツイートは少なく，Twitterをセンサとして活用するときの問題の1つとなる．そこで本研究では，ツイートの投稿位置を推定し，より多くのツイートに正確な位置情報を付与することを目的とする．この目的を達成するために，ツイート中のノイズとなる単語を除去するためのフィルタリング手法を提案する．また，単語の地理的分布を平滑化するためのスムージング手法も提案する．これらの提案手法が従来手法よりも有効に機能することを示し，その考察を行う．
Twitter can be considered as a real-time sensor that responds to real-world events by combining the content and location information of tweets. However, a problem persists: tweets containing location information are too small. To overcome this problem, we estimate the location where a tweet was posted. Our main method involves using word filters called AF filter and TF-IAF filter that detect stop words. In addition, we propose a smoothing method called Distance smoothing for overcoming sparsity of words. We show that both our methods improve location estimation accuracy and discuss the features of the results.journal articl
Tailoring mechanical properties of bulk metallic glass through controlling microstructure by plastic deformation
No full text豊橋技術科学大学博士(工学)doctoral thesi
On Shishi Bunroku's Oban : from "Speculation" to "Investment", from "Entertainment" to "Literature"
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Measuring the Effectiveness of an Online English Course as Preparation for Overseas Internships : Toyohashi University of Technology Nov-Dec 2013
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Viewpoint Planning Framework for Single Guard Robot in Indoor Environment
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