Research on Novel Database Core Technologies for the Era of Big Data
Our research group has been exploring and developing novel database core technologies for enabling Big Data management and analytics at a scale, a depth and efficiency that were ever thought to be impossible. The endeavor focuses on systems software such as database systems, storage systems and operating systems, but is not limited to them; the group also ventures to the fusion of infrastructure systems and cutting-edge social and business applications. One of the recent work is a super-fast database engine that the group successfully developed based on a novel execution principle. This brand-new engine is being deployed into more production systems in the market.Very Large scale web solutions
ウェブ・ソーシャルメディア等のサイバー空間と実世界は密接に連動しており、サイバー空間と実世界センサデータの融合解析による社会課題解決を目標とした研究を推進しています。1999年から継続的に日本語ウェブページを大規模収集し、数百億URL、数十億ブログ記事、Twitterの数百億つぶやき等を含む ウェブアーカイブを構築するとともに、ドライブレコーダデータ、交通トラフィックデータ、気象データ等の実世界データの収集・蓄積を行い、その構造、内容、時間変化等を解析するシステムを開発中です。膨大なサイバー空間・実世界データを、データマイニング、機械学習、リンク解析、自然言語処理、画像処理等を用いて解析し、様々な切り口で探索可能な可視化システムを大規模ディスプレイウォール上に実装しています。Natural Language Processing and Computational Linguistics towards understanding human and society using fast and accurate language technologies
Humans think with language, and verbalize their experiences in the real world to convey them to others. Aiming to observe humans and the real world from text and aiding our language activities, our laboratory studies on natural language processing (NLP) that computerizes text efficiently and accurately. The pursuit of efficient but accurate NLP models leads to computational linguistics (CL) that reveals the mechanism of languages as natural phenomena that behave both regularly and probabilistically and ultimately human intelligence.