[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"article:yahoo-japan-search":3},{"meta":4,"markdown":66},{"type":5,"articleId":6,"slug":7,"title":8,"titleEn":9,"category":10,"summary":11,"publishedAt":12,"image":13,"vocabulary":14},"article","tech-yahoo-japan-search","yahoo-japan-search","Yahoo! JAPAN検索の基盤 — 日本語特化の大規模検索システム","Yahoo! JAPAN Search: A Large-Scale Japanese-Optimized Engine","tech","Yahoo! JAPAN Search — history of switching from Google to Bing back to an independent path, Japanese morphological analysis with mecab\u002Fkuromoji, query intent detection, vertical search integration (news, Chiebukuro, Shopping), mobile optimization after the LINE-Yahoo merger, personalization via click logs, and emergency information surfacing during disasters.\n","2026-04-28T00:00:00Z","https:\u002F\u002Fimages.yamiyomi.com\u002Ftech-yahoo-japan-search.png",[15,20,25,29,33,37,42,46,50,54,58,62],{"word":16,"reading":17,"meaning":18,"level":19},"検索","けんさく","search","N2",{"word":21,"reading":22,"meaning":23,"level":24},"基盤","きばん","infrastructure","N1",{"word":26,"reading":27,"meaning":28,"level":24},"形態素","けいたいそ","morpheme",{"word":30,"reading":31,"meaning":32,"level":19},"解析","かいせき","analysis",{"word":34,"reading":35,"meaning":36,"level":24},"統合","とうごう","integration",{"word":38,"reading":39,"meaning":40,"level":41},"縦","たて","vertical","N3",{"word":43,"reading":44,"meaning":45,"level":19},"災害","さいがい","disaster",{"word":47,"reading":48,"meaning":49,"level":24},"提携","ていけい","partnership",{"word":51,"reading":52,"meaning":53,"level":24},"独自","どくじ","independent \u002F proprietary",{"word":55,"reading":56,"meaning":57,"level":19},"意図","いと","intent",{"word":59,"reading":60,"meaning":61,"level":24},"個人化","こじんか","personalization",{"word":63,"reading":64,"meaning":65,"level":24},"緊急","きんきゅう","emergency","\n::para\n[ヤフー]{やふー:Yahoo}[株式]{かぶしき:stock:N1}[会社]{がいしゃ:company:N4}（[現]{げん:current:N3}LINEヤフー）が[運営]{うんえい:operate:N2}する[Yahoo!]{やふー:Yahoo!}[JAPAN]{じゃぱん:JAPAN}[検索]{けんさく:search:N1}は、[日本]{にほん:Japan:N5}[国内]{こくない:domestic:N3}で[Google]{ぐーぐる:Google}と[並ぶ]{ならぶ:to rank alongside:N2}[二]{に:two:N5}[大]{だい:large:N5}[検索]{けんさく:search:N1}サービスです。[本]{ほん:this:N5}[記事]{きじ:article:N3}では、[長い]{ながい:long:N5}[歴史]{れきし:history:N2}の[中で]{なかで:within:N5}[変化]{へんか:change:N3}してきた[検索]{けんさく:search:N1}[基盤]{きばん:infrastructure:N1}と、[日本語]{にほんご:Japanese:N5}に[特化]{とっか:specialized:N3}した[技術]{ぎじゅつ:technology:N2}[要素]{ようそ:elements:N1}を[整理]{せいり:organize:N1}します。\n\n#en\nYahoo! JAPAN Search, operated by Yahoo Japan Corporation (now LINE Yahoo), is one of the two major search services in Japan alongside Google. This article organizes the search infrastructure that has changed throughout its long history and the technical elements specialized for Japanese.\n::\n\n::heading\n[検索]{けんさく:search:N1}エンジンの[歴史]{れきし:history:N2}と[提携]{ていけい:partnership:N1}の[変遷]{へんせん:transition:N1}\n\n#en\nHistory of the Search Engine and Transitions in Partnerships\n::\n\n::para\n[Yahoo!]{やふー:Yahoo!}[JAPAN]{じゃぱん:JAPAN}は[初期]{しょき:early period:N3}にはディレクトリ[型]{がた:type:N2}の[人手]{ひとで:manual:N4}[編集]{へんしゅう:editing:N2}サービスとして[出発]{しゅっぱつ:launch:N4}し、その[後]{ご:after:N5}は[各種]{かくしゅ:various:N2}[検索]{けんさく:search:N1}エンジンと[提携]{ていけい:partnership:N1}してきました。[2010]{にせんじゅう:2010}[年]{ねん:year:N5}には[一]{いっ:one:N5}[時]{じ:moment:N5}[Microsoft]{まいくろそふと:Microsoft}の[Bing]{びんぐ:Bing}との[提携]{ていけい:partnership:N1}が[報じられ]{ほうじられ:reported:N3}ましたが、[最終的]{さいしゅうてき:ultimately:N3}には[同]{どう:same:N4}[年]{ねん:year:N5}に[Google]{ぐーぐる:Google}の[検索]{けんさく:search:N1}[技術]{ぎじゅつ:technology:N2}を[利用]{りよう:utilize:N3}する[契約]{けいやく:contract:N1}が[締結]{ていけつ:concluded:N1}されました。[ただし]{ただし:however}[基盤]{きばん:infrastructure:N1}が[Google]{ぐーぐる:Google}でも[ランキング]{らんきんぐ:ranking}や[UI]{ゆーあい:UI}は[ヤフー]{やふー:Yahoo}が[独自]{どくじ:independently:N1}に[作り込んで]{つくりこんで:built up:N3}おり、[両者]{りょうしゃ:both parties:N3}の[検索]{けんさく:search:N1}[結果]{けっか:results:N1}は[同じ]{おなじ:same:N4}にはなりません。\n\n#en\nYahoo! JAPAN started as a directory-type human-edited service, then partnered with various search engines over time. In 2010, a partnership with Microsoft's Bing was reported, but ultimately a contract to use Google's search technology was concluded that same year. However, even with Google as the infrastructure, the ranking and UI are independently built by Yahoo, so the search results of the two are not identical.\n::\n\n::callout\n[基盤]{きばん:infrastructure:N1}を[借りる]{かりる:borrow:N4}か[自社]{じしゃ:in-house:N4}[開発]{かいはつ:develop:N4}するかは、[巨大な]{きょだいな:enormous:N2}[投資]{とうし:investment:N3}[判断]{はんだん:decision:N3}。[利用]{りよう:utilize:N3}しても[上層]{じょうそう:upper layer:N2}の[味付け]{あじつけ:flavoring:N3}で[差別]{さべつ:differentiation:N3}[化]{か:-ize:N3}は[十分に]{じゅうぶんに:sufficiently:N5}[可能]{かのう:possible:N3}。\n\n#en\nWhether to borrow the infrastructure or develop in-house is a massive investment decision. Even when borrowing, sufficient differentiation through \"flavoring\" at the upper layer is possible.\n::\n\n::heading\n[日本語]{にほんご:Japanese:N5}[形態素]{けいたいそ:morpheme:N1}[解析]{かいせき:analysis:N1}と[クエリ]{くえり:query}[理解]{りかい:understanding:N3}\n\n#en\nJapanese Morphological Analysis and Query Understanding\n::\n\n::para\n[日本語]{にほんご:Japanese:N5}[検索]{けんさく:search:N1}の[根幹]{こんかん:foundation:N1}は[形態素]{けいたいそ:morpheme:N1}[解析]{かいせき:analysis:N1}にあります。[ヤフー]{やふー:Yahoo}は[長年]{ながねん:many years:N5}[mecab]{めかぶ:mecab}や[kuromoji]{くろもじ:kuromoji}に[類する]{るいする:similar to:N3}[内製]{ないせい:in-house developed:N1}の[解析]{かいせき:analysis:N1}[器]{き:tool:N1}を[運用]{うんよう:operate:N4}し、[人名]{じんめい:person name:N5}・[地名]{ちめい:place name:N4}・[新語]{しんご:new word:N4}などの[専門]{せんもん:specialized:N2}[辞書]{じしょ:dictionary:N3}を[継続的に]{けいぞくてきに:continually:N1}[更新]{こうしん:update:N3}しています。「[渋谷]{しぶや:Shibuya:N1}[ランチ]{らんち:lunch}[安い]{やすい:cheap:N4}」のような[複合]{ふくごう:compound:N2}クエリでは、[各]{かく:each:N2}[形態素]{けいたいそ:morpheme:N1}を[正しく]{ただしく:correctly:N4}[切り出した]{きりだした:extracted:N4}[上で]{うえで:on top of:N5}、[利用者]{りようしゃ:user:N3}が[何を]{なにを:what:N5}[求めて]{もとめて:seeking:N3}いるか（[飲食]{いんしょく:food and drink:N4}[店]{てん:store:N4}[情報]{じょうほう:information:N3}）という[意図]{いと:intent:N4}を[推定]{すいてい:estimate:N1}します。\n\n#en\nThe foundation of Japanese search is morphological analysis. Yahoo has long operated in-house analyzers similar to mecab and kuromoji, continually updating specialized dictionaries for personal names, place names, and new words. For compound queries like \"Shibuya lunch cheap,\" after correctly extracting each morpheme, the system estimates the user's intent (information about food and drink establishments).\n::\n\n::heading\n[縦]{たて:vertical:N1}の[検索]{けんさく:search:N1} — [サービス]{さーびす:service}[統合]{とうごう:integration:N1}\n\n#en\nVertical Search: Service Integration\n::\n\n::para\n[Yahoo!]{やふー:Yahoo!}[JAPAN]{じゃぱん:JAPAN}の[検索]{けんさく:search:N1}[結果]{けっか:results:N1}[ページ]{ぺーじ:page}は[Web]{うぇぶ:web}[ページ]{ぺーじ:page}だけでなく、[Yahoo!]{やふー:Yahoo!}[ニュース]{にゅーす:news}、[知恵袋]{ちえぶくろ:Chiebukuro (Q&A):N1}、[ショッピング]{しょっぴんぐ:Shopping}、[路線]{ろせん:transit route:N2}[情報]{じょうほう:info:N3}、[天気]{てんき:weather:N5}など[多]{た:many:N4}[岐]{き:branches:N1}にわたる[自社]{じしゃ:in-house:N4}サービスの[結果]{けっか:results:N1}を[統合]{とうごう:integrate:N1}して[表示]{ひょうじ:display:N3}します。これを[業界]{ぎょうかい:industry:N4}では[縦]{たて:vertical:N1}[検索]{けんさく:search:N1}（[バーティカル]{ばーてぃかる:vertical}[検索]{けんさく:search:N1}）と[呼び]{よび:called:N3}、クエリの[意図]{いと:intent:N4}に[応じて]{おうじて:according to:N1}「[最も]{もっとも:most:N3}[適切な]{てきせつな:appropriate:N3}サービスを[上位]{じょうい:top:N3}に[出す]{だす:show:N5}」[判断]{はんだん:decision:N3}が[必要]{ひつよう:necessary:N3}になります。「[明日]{あした:tomorrow:N4}の[天気]{てんき:weather:N5}」なら[天気]{てんき:weather:N5}[ウィジェット]{うぃじぇっと:widget}、「[新宿]{しんじゅく:Shinjuku:N3}から[渋谷]{しぶや:Shibuya:N1}」なら[路線]{ろせん:route:N2}[案内]{あんない:guidance:N1}を[即座]{そくざ:immediately:N1}に[返す]{かえす:return:N3}[仕組み]{しくみ:mechanism:N3}です。\n\n#en\nThe Yahoo! JAPAN search results page integrates and displays results from many in-house services — Yahoo! News, Chiebukuro (Q&A), Shopping, transit route info, weather — not just web pages. In the industry this is called vertical search, and a decision of \"showing the most appropriate service at the top\" according to query intent is needed. For \"tomorrow's weather,\" it instantly returns a weather widget; for \"Shinjuku to Shibuya,\" route guidance.\n::\n\n::heading\nクエリ[意図]{いと:intent:N4}[判定]{はんてい:detection:N3}\n\n#en\nQuery Intent Detection\n::\n\n::para\n[同じ]{おなじ:same:N4}「[apple]{あっぷる:apple}」というクエリでも、[果物]{くだもの:fruit:N3}を[探す]{さがす:search for:N3}[人]{ひと:person:N5}と[米国]{べいこく:US:N3}[企業]{きぎょう:company:N1}を[探す]{さがす:search for:N3}[人]{ひと:person:N5}では[期待]{きたい:expect:N3}する[結果]{けっか:result:N1}が[全く]{まったく:completely:N3}[異なり]{ことなり:different:N1}ます。[ヤフー]{やふー:Yahoo}は[過去]{かこ:past:N3}の[膨大な]{ぼうだいな:vast:N1}クリックログから[クエリと正解]{くえりとせいかい:query and correct answer:N3}カテゴリの[対応]{たいおう:correspondence:N1}を[学習]{がくしゅう:learn:N4}し、[文脈]{ぶんみゃく:context:N1}や[時節]{じせつ:season:N1}も[考慮]{こうりょ:consider:N1}した[意図]{いと:intent:N4}[推定]{すいてい:estimation:N1}を[行い]{おこない:perform:N5}ます。[正しい]{ただしい:correct:N4}[縦]{たて:vertical:N1}を[選ぶ]{えらぶ:select:N3}ためには、この[意図]{いと:intent:N4}[判定]{はんてい:detection:N3}の[精度]{せいど:accuracy:N3}が[全て]{すべて:everything:N3}と[言えます]{いえます:can be said:N4}。\n\n#en\nEven with the same query \"apple,\" a person searching for the fruit and a person searching for the US company expect completely different results. Yahoo learns the correspondence between queries and correct-answer categories from vast past click logs, performing intent estimation that also considers context and season. To select the correct vertical, the accuracy of this intent detection can be said to be everything.\n::\n\n::heading\nモバイルとLINEヤフー[統合]{とうごう:integration:N1}[後]{ご:after:N5}の[戦略]{せんりゃく:strategy:N2}\n\n#en\nMobile and Strategy After the LINE-Yahoo Integration\n::\n\n::para\n[2023]{にせんにじゅうさん:2023}[年]{ねん:year:N5}に[ヤフー]{やふー:Yahoo}と[LINE]{らいん:LINE}が[経営]{けいえい:management:N2}[統合]{とうごう:integration:N1}し、[LINE]{らいん:LINE}ヤフー[株式]{かぶしき:stock:N1}[会社]{がいしゃ:company:N4}が[誕生]{たんじょう:born:N1}しました。[国内]{こくない:domestic:N3}で[圧倒的な]{あっとうてきな:overwhelming:N2}[利用]{りよう:usage:N3}[者]{しゃ:user:N4}[基盤]{きばん:base:N1}を[持つ]{もつ:hold:N4}[LINE]{らいん:LINE}と[組む]{くむ:combine:N3}ことで、[検索]{けんさく:search:N1}は[よりモバイル]{よりもばいる:more mobile}と[メッセージング]{めっせーじんぐ:messaging}[文脈]{ぶんみゃく:context:N1}に[寄り添う]{よりそう:align with:N1}[方向]{ほうこう:direction:N3}に[進化]{しんか:evolving:N3}しています。[スマートフォン]{すまーとふぉん:smartphone}での[検索]{けんさく:search:N1}[行動]{こうどう:behavior:N4}は[PC]{ぴーしー:PC}とは[異なり]{ことなり:differ:N1}、[短い]{みじかい:short:N2}クエリ・[音声]{おんせい:voice:N3}[入力]{にゅうりょく:input:N4}・[位置]{いち:location:N3}[情報]{じょうほう:info:N3}を[活用]{かつよう:utilize:N3}した[結果]{けっか:result:N1}[最適]{さいてき:optimal:N3}[化]{か:-ize:N3}が[求められ]{もとめられ:demanded:N3}ます。\n\n#en\nIn 2023, Yahoo and LINE merged their management, giving birth to LINE Yahoo Corporation. By combining with LINE, which has an overwhelming user base in Japan, search is evolving in a direction more aligned with mobile and messaging contexts. Search behavior on smartphones differs from PCs, demanding result optimization using short queries, voice input, and location information.\n::\n\n::heading\n[個人化]{こじんか:personalization:N2}とクリックログによる[学習]{がくしゅう:learning:N4}\n\n#en\nPersonalization and Learning from Click Logs\n::\n\n::para\n[利用者]{りようしゃ:user:N3}が[過去]{かこ:past:N3}にどんな[記事]{きじ:article:N3}を[読み]{よみ:read:N5}、どんな[商品]{しょうひん:product:N3}を[買い]{かい:buy:N4}、どんなクエリで[検索]{けんさく:search:N1}してきたかという[履歴]{りれき:history:N1}は、[個人化]{こじんか:personalization:N2}の[源]{みなもと:source:N1}です。[ヤフー]{やふー:Yahoo}は[Yahoo!]{やふー:Yahoo!}[ID]{あいでぃー:ID}を[起点]{きてん:starting point:N3}にした[利用]{りよう:usage:N3}[者]{しゃ:user:N4}[行動]{こうどう:behavior:N4}データを[大量に]{たいりょうに:in large amounts:N2}[蓄積]{ちくせき:accumulate:N1}しており、これをクリックログによる[学習]{がくしゅう:learning:N4}と[組み合わせて]{くみあわせて:combining:N3}「この[利用]{りよう:user:N3}[者]{しゃ:user:N4}にとって[望ましい]{のぞましい:desirable:N3}[結果]{けっか:result:N1}」を[算出]{さんしゅつ:calculate:N2}します。[ただし]{ただし:however}[個人]{こじん:personal:N2}[情報]{じょうほう:info:N3}[保護]{ほご:protection:N1}との[両立]{りょうりつ:balance:N3}が[求められ]{もとめられ:demanded:N3}、[匿名]{とくめい:anonymized:N1}[化]{か:-ize:N3}や[同意]{どうい:consent:N4}[取得]{しゅとく:obtain:N3}の[仕組み]{しくみ:mechanism:N3}が[整備]{せいび:maintained:N1}されています。\n\n#en\nThe history of what articles a user has read in the past, what products they bought, and what queries they searched is the source of personalization. Yahoo accumulates large amounts of user behavior data anchored to the Yahoo! ID and combines this with learning from click logs to calculate \"results desirable for this user.\" However, balance with personal information protection is demanded, and mechanisms for anonymization and consent acquisition are maintained.\n::\n\n::heading\n[災害]{さいがい:disaster:N1}[時]{じ:time:N5}の[緊急]{きんきゅう:emergency:N1}[情報]{じょうほう:information:N3}[表示]{ひょうじ:surfacing:N3}\n\n#en\nSurfacing Emergency Information During Disasters\n::\n\n::para\n[Yahoo!]{やふー:Yahoo!}[JAPAN]{じゃぱん:JAPAN}が[他]{ほか:other:N3}の[検索]{けんさく:search:N1}サービスと[一線]{いっせん:line:N2}を[画す]{かくす:draw:N4}[特徴]{とくちょう:feature:N1}が、[災害]{さいがい:disaster:N1}[時]{じ:time:N5}の[情報]{じょうほう:information:N3}[表示]{ひょうじ:surfacing:N3}です。[地震]{じしん:earthquake:N2}・[台風]{たいふう:typhoon:N4}・[豪雨]{ごうう:torrential rain:N1}が[発生]{はっせい:occur:N4}すると、[検索]{けんさく:search:N1}[結果]{けっか:results:N1}[ページ]{ぺーじ:page}の[最]{さい:most:N3}[上部]{じょうぶ:top:N3}に[避難]{ひなん:evacuation:N1}[情報]{じょうほう:info:N3}・[気象]{きしょう:weather:N2}[警報]{けいほう:warning:N3}・[交通]{こうつう:transit:N3}[運行]{うんこう:operation:N4}[状況]{じょうきょう:status:N2}を[即座]{そくざ:immediately:N1}に[掲出]{けいしゅつ:post:N1}する[仕組み]{しくみ:mechanism:N3}があります。[平時]{へいじ:peacetime:N3}とは[異なる]{ことなる:differ:N1}[ランキング]{らんきんぐ:ranking}に[切り替え]{きりかえ:switch:N2}、[利用者]{りようしゃ:user:N3}の[安全]{あんぜん:safety:N3}に[直結]{ちょっけつ:directly connected:N1}する[情報]{じょうほう:info:N3}を[最]{さい:most:N3}[優先]{ゆうせん:priority:N3}で[届ける]{とどける:deliver:N2}という[公共性]{こうきょうせい:public character:N3}の[高い]{たかい:high:N5}[役割]{やくわり:role:N3}を[担って]{になって:bearing:N2}います。\n\n#en\nA feature that distinguishes Yahoo! JAPAN from other search services is information surfacing during disasters. When earthquakes, typhoons, or torrential rains occur, there is a mechanism that immediately posts evacuation information, weather warnings, and transit operation status at the very top of the search results page. By switching to a different ranking from peacetime and delivering information directly tied to user safety with the highest priority, it bears a highly public role.\n::\n\n::callout\n[検索]{けんさく:search:N1}は[平時]{へいじ:peacetime:N3}の[利便]{りべん:convenience:N3}[性]{せい:-ness:N3}だけでなく[非常]{ひじょう:emergency:N3}[時]{じ:time:N5}の[ライフライン]{らいふらいん:lifeline}でもある。[インフラ]{いんふら:infrastructure}としての[責任]{せきにん:responsibility:N3}を[果たす]{はたす:fulfill:N3}[姿勢]{しせい:stance:N1}が[ヤフー]{やふー:Yahoo}の[強み]{つよみ:strength:N4}。\n\n#en\nSearch is not only a convenience in peacetime but also a lifeline in emergencies. The stance of fulfilling responsibility as infrastructure is Yahoo's strength.\n::\n\n::heading\n[広告]{こうこく:advertising:N3}と[自然]{しぜん:natural:N3}[検索]{けんさく:search:N1}の[バランス]{ばらんす:balance}\n\n#en\nBalance Between Advertising and Natural Search\n::\n\n::para\n[ヤフー]{やふー:Yahoo}は[Yahoo!]{やふー:Yahoo!}[広告]{こうこく:Ads:N3}という[国内]{こくない:domestic:N3}[最大級]{さいだいきゅう:largest-class:N1}の[広告]{こうこく:ad:N3}[配信]{はいしん:distribution:N3}[基盤]{きばん:platform:N1}を[運営]{うんえい:operate:N2}しており、[検索]{けんさく:search:N1}[結果]{けっか:results:N1}[上部]{じょうぶ:top:N3}にも[広告]{こうこく:ads:N3}が[表示]{ひょうじ:display:N3}されます。[ただし]{ただし:however}[利用者]{りようしゃ:user:N3}[体験]{たいけん:experience:N4}を[損なわない]{そこなわない:not damage:N2}ために、[自然]{しぜん:natural:N3}[検索]{けんさく:search:N1}[結果]{けっか:results:N1}との[境]{さかい:boundary:N2}を[明確]{めいかく:clear:N3}にし、[広告]{こうこく:ads:N3}[表示]{ひょうじ:display:N3}を[適切な]{てきせつな:appropriate:N3}[件数]{けんすう:count:N3}に[抑える]{おさえる:limit:N1}[配慮]{はいりょ:consideration:N1}が[なされて]{なされて:made}います。[広告]{こうこく:advertising:N3}[収益]{しゅうえき:revenue:N1}と[利用]{りよう:user:N3}[者]{しゃ:user:N4}[満足]{まんぞく:satisfaction:N3}という[相反]{そうはん:opposing:N3}する[要素]{ようそ:elements:N1}の[両立]{りょうりつ:balance:N3}が[検索]{けんさく:search:N1}[事業]{じぎょう:business:N4}の[難しさ]{むずかしさ:difficulty:N3}でもあります。\n\n#en\nYahoo operates Yahoo! Ads, one of Japan's largest-class ad delivery platforms, and ads are displayed at the top of search results. However, to not damage the user experience, the boundary with natural search results is made clear, and consideration is given to limiting ad display to an appropriate count. Balancing the opposing elements of advertising revenue and user satisfaction is also the difficulty of the search business.\n::\n\n::heading\nおわりに\n\n#en\nConclusion\n::\n\n::para\n[Yahoo!]{やふー:Yahoo!}[JAPAN]{じゃぱん:JAPAN}[検索]{けんさく:search:N1}は、[基盤]{きばん:infrastructure:N1}[技術]{ぎじゅつ:technology:N2}の[一部]{いちぶ:part:N3}を[Google]{ぐーぐる:Google}に[借りつつ]{かりつつ:while borrowing:N4}も、[日本語]{にほんご:Japanese:N5}[特化]{とっか:specialized:N3}の[形態素]{けいたいそ:morpheme:N1}[解析]{かいせき:analysis:N1}・[縦]{たて:vertical:N1}[検索]{けんさく:search:N1}による[サービス]{さーびす:service}[統合]{とうごう:integration:N1}・[クエリ]{くえり:query}[意図]{いと:intent:N4}[判定]{はんてい:detection:N3}・[個人化]{こじんか:personalization:N2}・[災害]{さいがい:disaster:N1}[時]{じ:time:N5}の[緊急]{きんきゅう:emergency:N1}[情報]{じょうほう:info:N3}[掲出]{けいしゅつ:posting:N1}など、[独自]{どくじ:unique:N1}の[価値]{かち:value:N1}を[積み上げて]{つみあげて:built up:N3}きました。[LINE]{らいん:LINE}との[統合]{とうごう:integration:N1}[後]{ご:after:N5}は[モバイル]{もばいる:mobile}・[メッセージング]{めっせーじんぐ:messaging}[文脈]{ぶんみゃく:context:N1}を[取り込んだ]{とりこんだ:incorporating:N3}[新しい]{あたらしい:new:N4}[検索]{けんさく:search:N1}[体験]{たいけん:experience:N4}への[挑戦]{ちょうせん:challenge:N1}が[続いて]{つづいて:continuing:N3}います。\n\n#en\nYahoo! JAPAN Search, while borrowing part of its infrastructure technology from Google, has built up unique value through Japanese-specialized morphological analysis, service integration via vertical search, query intent detection, personalization, and emergency information posting during disasters. After integration with LINE, the challenge toward a new search experience incorporating mobile and messaging contexts continues.\n::\n"]