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LODチャレンジ2018応募作品のバーチャルYouTuberLODの説明用スライドです
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バーチャルYouTuberLOD
1.
バーチャルYoutuberLOD (LODチャレンジ2018データセット部⾨) 筑波⼤学メタデータ研究室Vtuberグループ
2.
概要 バーチャルYouTuberとは主にYouTubeで活動し、動画配信を ⾏うバーチャルなキャラクター達です。近年、バーチャル YouTuberは⼤きく数を増やしており、様々なコンテンツとのコ ラボも盛んに⾏われています。 バーチャルYouTuberのデータをLODとして公開することに よって、今後様々なコンテンツのLODとリンクさせていくこと が狙いです。 2
3.
Vtuberの種類 ● 個⼈ ● 企業(プロダクション) ●
地⽅⾃治体 3
4.
バーチャルYoutuberLODの利点 ● バーチャルYoutuberは未だ新しいコンテンツであり、情報源が限 られている →オープンに利⽤できるデータは限られている ● 様々なコンテンツとのコラボなどが進んでおり、これからの成⻑ に期待がかかる分野である →今後様々なジャンルのオープンデータとのリンクに期待ができる 4
5.
使⽤したデータ ● バーチャルYouTuberランキング(https://virtual- youtuber.userlocal.jp/document/ranking) ○ バーチャルYouTuberの⼈気ランキングを掲載しているサイト ○
バーチャルYouTuberのチャンネルURLや概要、TwitterIDを取得するの に使⽤ ● YouTube Data API(https://developers.google.com/youtube/v3/?hl=ja) ○ バーチャルYouTuberのチャンネル情報と各動画情報を取得するのに使 ⽤ 5
6.
作成の⼿順 1. メタデータ語彙の決定 2. バーチャルYouTuberランキングからバーチャルYouTuberの情報 をWebスクレイピングによって取得 3.
YouTubeのAPIを使⽤して、動画情報、チャンネル情報を取得 4. Vtuberと運営している企業や地⽅⾃治体の情報を取得 5. 取得した情報をRDF化 6
7.
他のデータとのリンキング例 ● サンデージャポン ○ キズナアイが出演した番組 ○
DBpediaの該当ページとキズナアイをリンキングすることが可能 ● 上坂すみれ(声優) ○ キズナアイの動画にゲスト出演した経歴あり ○ 該当する動画の情報とDBpediaでリンキング可能 7
8.
データモデル バーチャル YouTuber rdf:type foaf:Agent 名前 TwitterID schema:name schema:identifier schema:url チャンネル URL 概要 schema:description 動画 schema:actor rdf:type schema:Video Object 名前 schema:name schema:caption 説明 schema:uploadDate 投稿日 運営団体 グループ schema:memberschema:member rdf:type schema:Organization 名前名前 schema:nameschema:name rdf:type schema:PerformingGroup schema:url schema:url URL URL schema:
<http://schema.org/> rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> foaf: < http://xmlns.com/foaf/0.1/> 8
9.
提供⽅法 以下のサイトにてSPARQLエンドポイントを公開しています http://mdlab.slis.tsukuba.ac.jp/lodc2018/vtuber/ 9
10.
検索クエリの例 特定のVtuberがアップロードした動画を検索 10
11.
検索クエリの例 特定のVtuberが所属するグループや企業とそのメンバーを検索 11
12.
まとめ ● バーチャルYoutuber ○ 動画配信を⾏うバーチャルなキャラクターの総称であり、⼤きな成⻑を 続けている ●
LODにする利点 ○ 急速に発展をしているカテゴリであるため、オープンデータはあまり作 られていない ○ 様々なコンテンツとコラボしており、今後多くのデータとリンクできる ● 今後の課題 ○ 外部データとリンクさせるためのソースが少ない ○ ⾃動更新 12
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