先端科学技術研究科 / Graduate School of Science and Technology: Recent submissions

  • 柿本, 大輔; 平林(宮部), 真衣; 荒牧, 英治; 吉野, 孝 (情報処理学会, 2021-01-15)
    インターネットにおける流言拡散防止のためには,情報閲覧時のユーザに対し,真偽確認を促進することで,不用意な情報拡散を防ぐことが重要である.我々はこれまでに,ユーザに対し,流言の存在に関する気づきを提供し,真偽確認を促進するシステム「RumorFinder」の構築を行ってきた.本研究では,効果的な真偽確認促進および役に立つ情報の提供について検討するため,システムの一般公開を行ったうえで,利用データの収集および分析を行った.分析の結果,以下 ...
  • 田中, 翔平; 吉野, 幸一郎; 須藤, 克仁; 中村, 哲 (一般社団法人言語処理学会, 2021-03-15)
    雑談対話システムの評価指標として,ユーザとの対話を継続させる働きを表す,対話継続性が挙げられる.対話モデルの先行研究において,対話継続性の向上には,システム発話の一貫性が重要であると考えられている.そこで本論文では,対話モデルより生成された応答候補を,対話中に含まれる事態の一貫性に基づいてリランキングする手法を提案する.提案手法は対話に含まれる事態の一貫性(「ストレスが溜まる」と「発散する」は関連した事態である,など)を考慮することで, ...
  • 中山, 佐保子; サクティ, サクリアニ; 中村, 哲 (情報処理学会, 2021-03-15)
    会話の中で複数の言語が切り替わる現象は,コードスイッチングと呼ばれる.コードスイッチングは,言語が切り替わる場所や長さによってさまざまなものがある.従来の音声認識システムは,そのようなコードスイッチングを扱うのが難しく,解決すべき課題の1つであった.これまで研究されてきたコードスイッチング音声認識は,言語が混ざったコードスイッチング音声を,そのまま言語が混ざったコードスイッチングテキストに書き起こすことだけを目的とした.それは,結局,コ ...
  • Ishibashi, Yoichi; Sudoh, Katsuhito; Yoshino, Koichiro; Nakamura, Satoshi (一般社団法人言語処理学会, 2021-03-15)
    Word embeddings, which often represent analogic relations such as king − man + woman ≈ queen, can be used to change an attribute of a word, including its gender. To transfer the gender attribute of king to obtain queen in ...
  • Kano, Haruka; Uehara, Keiji; Matsuo, Kyohei; Hayashi, Hironobu; Yamada, Hiroko; Aratani, Naoki (Beilstein-Institut, 2020-04-06)
    The preparation of large rylenes often needs the use of solubilizing groups along the rylene backbone, and all the substituents of the terrylenes and quaterrylenes were introduced before creating the rylene skeleton. In ...
  • Effendi, Johanes; Tjandra, Andros; Sakti, Sakriani; Nakamura, Satoshi (IEEE, 2021-05-06)
    Language is an integral part of human interpersonal communication, which is conveyed through multiple sensory channels. This multisensory communication skill has motivated an extensive number of studies on multimodal ...
  • Yamaguchi, Nobutoshi; Matsubara, Satoshi; Yoshimizu, Kaori; Seki, Motohide; Hamada, Kouta; Kamitani, Mari; Kurita, Yuko; Nomura, Yasuyuki; Nagashima, Kota; Inagaki, Soichi; Suzuki, Takamasa; Gan, Eng-Seng; To, Taiko; Kakutani, Tetsuji; Nagano, Atsushi J.; Satake, Akiko; Ito, Toshiro (Nature Research, 2021-06-09)
    Acclimation to high temperature increases plants’ tolerance of subsequent lethal high temperatures. Although epigenetic regulation of plant gene expression is well studied, how plants maintain a memory of environmental ...
  • Kamranfar, Iman; Xue, Gang-Ping; Tohge, Takayuki; Sedaghatmehr, Mastoureh; Fernie, Alisdair R.; Balazadeh, Salma; Mueller-Roeber, Bernd (Wiley/Blackwell, 2018-04-16)
    Leaf senescence is a key process in plants that culminates in the degradation of cellular constituents and massive reprogramming of metabolism for the recovery of nutrients from aged leaves for their reuse in newly developing ...
  • Salem, Mohamed A.; Li, Yan; Bajdzienko, Krzysztof; Fisahn, Joachim; Watanabe, Mutsumi; Hoefgen, Rainer; Schöttler, Mark Aurel; Giavalisco, Patrick (American Society of Plant Biologists, 2018-04-23)
    Vegetative growth requires the systemic coordination of numerous cellular processes, which are controlled by regulatory proteins that monitor extracellular and intracellular cues and translate them into growth decisions. ...
  • Battat, Maor; Eitan, Asa; Rogachev, Ilana; Hanhineva, Kati; Fernie, Alisdair R.; Tohge, Takayuki; Beekwilder, Jules; Aharoni, Asaph (American Society of Plant Biologists, 2019-02-12)
    The pollen wall is a complex, durable structure essential for plant reproduction. A substantial portion of phenylpropanoids (e.g. flavonols) produced by pollen grain tapetal cells are deposited in the pollen wall. ...
  • Tohge, Takayuki; Borghi, Monica; Fernie, Alisdair R. (Nature Research, 2018-04-03)
    Application of mass spectrometry-based metabolomics enables the detection of genotype-related natural variance in metabolism. Differences in secondary metabolite composition of flowers of 64 Arabidopsis thaliana (Arabidopsis) ...
  • Kastian, Ria Fajarwati; Minegishi, Takunori; Baba, Kentarou; Saneyoshi, Takeo; Katsuno-Kambe, Hiroko; Saranpal, Singh; Hayashi, Yasunori; Inagaki, Naoyuki (Cell Press, 2021-05-18)
    Dendritic spines constitute the major compartments of excitatory post-synapses. They undergo activity-dependent enlargement, which is thought to increase the synaptic efficacy underlying learning and memory. The ...
  • Watanabe, Mutsumi; Tohge, Takayuki; Fernie, Alisdair R.; Hoefgen, Rainer (Frontiers Media, 2018-05-28)
    The gene family of serine acetyltransferases (SERATs) constitutes an interface between the plant pathways of serine and sulfur metabolism. SERATs provide the activated precursor, O-acetylserine for the fixation of reduced ...
  • Brandt, Saskia; Fachinger, Sara; Tohge, Takayuki; Fernie, Alisdair R.; Braun, Hans- Peter; Hildebrandt, Tatjana M. (Public Library of Science, 2018-08-09)
    Prolonged darkness leads to carbohydrate starvation, and as a consequence plants degrade proteins and lipids to oxidize amino acids and fatty acids as alternative substrates for mitochondrial ATP production. We investigated, ...
  • Lorenz, Christin; Brandt, Saskia; Borisjuk, Ljudmilla; Rolletschek, Hardy; Heinzel, Nicolas; Tohge, Takayuki; Fernie, Alisdair R.; Braun, Hans-Peter; Hildebrandt, Tatjana M. (Frontiers Media, 2018-09-19)
    The sulfur dioxygenase ETHE1 oxidizes persulfides in the mitochondrial matrix and is involved in the degradation of L-cysteine and hydrogen sulfide. ETHE1 has an essential but as yet undefined function in early embryo ...
  • Watanabe, Mutsumi; Netzer, Florian; Tohge, Takayuki; Orf, Isabel; Brotman, Yariv; Dubbert, David; Fernie, Alisdair R.; Rennenberg, Heinz; Hoefgen, Rainer; Herschbach, Cornelia (Frontiers Media, 2018-09-05)
    The temperate climax tree species Fagus sylvatica and the floodplain tree species Populus × canescens possess contrasting phosphorus (P) nutrition strategies. While F. sylvatica has been documented to display P storage and ...
  • Riedel, Simona; Siemiatkowska, Beata; Watanabe, Mutsumi; Müller, Christina S.; Schünemann, Volker; Hoefgen, Rainer; Leimkühler, Silke (Frontiers Media, 2019-03-13)
    The mitochondrial ATP-binding cassette (ABC) transporters ABCB7 in humans, Atm1 in yeast and ATM3 in plants, are highly conserved in their overall architecture and particularly in their glutathione binding pocket located ...
  • Casartelli, Alberto; Melino, Vanessa J.; Baumann, Ute; Riboni, Matteo; Suchecki, Radoslaw; Jayasinghe, Nirupama S.; Mendis, Himasha; Watanabe, Mutsumi; Erban, Alexander; Zuther, Ellen; Hoefgen, Rainer; Roessner, Ute; Okamoto, Mamoru; Heuer, Sigrid (Springer, 2019-03-01)
    The metabolite allantoin is an intermediate of the catabolism of purines (components of nucleotides) and is known for its housekeeping role in nitrogen (N) recycling and also for its function in N transport and storage in ...
  • Ferrari, Camilla; Proost, Sebastian; Janowski, Marcin; Becker, Jörg; Nikoloski, Zoran; Bhattacharya, Debashish; Price, Dana; Tohge, Takayuki; Bar-Even, Arren; Fernie, Alisdair R.; Stitt, Mark; Mutwil, Marek (Nature Research, 2019-02-13)
    Plants have adapted to the diurnal light-dark cycle by establishing elaborate transcriptional programs that coordinate many metabolic, physiological, and developmental responses to the external environment. These transcriptional ...
  • Mangel, Nathalie; Fudge, Jared B.; Li, Kuan-Te; Wu, Ting-Ying; Tohge, Takayuki; Fernie, Alisdair R.; Szurek, Boris; Fitzpatrick, Teresa B.; Gruissem, Wilhelm; Vanderschuren, Hervé (Wiley, 2019-05-07)
    Vitamin B6 (pyridoxine) is vital for key metabolic reactions and reported to have antioxidant properties in planta. Therefore, enhancement of vitamin B6 content has been hypothesized to be a route to improve resistance to ...

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