『子ども版日本語日常会話コーパス』の構築

NINJALNINJALNINJALNINJALNINJALNINJALNINJALThe University of Tokyo / NINJALNINJAL会議名: 言語資源ワークショップ2022, 開催地: オンライン, 会期: 2022年8月30日-31日, 主催: 国立国語研究所 言語資源開発センター2022年3月に公開した『日本語日常会話コーパス』(CEJC)は、成人中心のコーパスであり、未成年者、とくに 10 歳未満の子どもの会話はあまり含まれていないという問題がある。そこで国立国語研究所共同研究プロジェクト「多世代会話コーパスに基づく話し言葉の総合的研究」(2022～2027年度)では、子どもを中心とする多様な場面・相手との会話を含む映像付きコーパスを新たに開発し、成人中心のCEJCと接続させることにより、コミュニケーションを含む言語の発達・変化の過程を、子どもから高齢者まで多世代に渡り実証的に研究できる基盤を構築することを目指している。発表では、新たに構築する子ども版の日常会話コーパスの設計や収録状況について報告する

大体积混凝土冬季施工质量控制措施

当下,大体积混凝土施工技术被广泛拓展应用,但纵观行业整体发展趋势可知,冬季大体积混凝土施工技术的质量控制仍存在诸多问题。对此,要深度剖析影响大体积混凝土施工质量的关键因素,并采取控制策略,在提高工程质量的基础上,实现经济效益的最大化。</jats:p

Toxic effects of polystyrene microplastics and pyrene on Ruditapes philippinarum

The pollution of microplastics and polycyclic aromatic hydrocarbons (PAHs) in marine environment is increasingly serious. The toxic effects of polystyrene microplastics and pyrene on the clam Ruditapes philippinarum were investigated in this study. R. philippinarum was exposed to two polystyrene microplastics sizes (0.3 mum and 6 mum, 20 mug/L) and two pyrene concentrations (10 mug/L and 100 mug/L) for 21 days, respectively. For individuals in each treatment, physiological responses (condition index and clearance rate), immune defense and oxidative stress parameters were measured. It was found that except for the pyrene single exposure group, the clearance rate of R. philippinarum in the other exposure groups was significantly lower than that of the control group, but the two pollutants had no significant effect on the condition index of R. philippinarum. Exposure to microplastics and pyrene led to impaired immune function of R. philippinarum, manifested by increased hemocyte apoptosis and inhibited phagocytosis. The apoptosis rate of hemocytes in the exposure group with small size microplastics and high concentration pyrene was significantly higher than that in the control group,and the apoptosis rate of hemocytes in the combined exposure group was the highest. Except for the large size microplastic exposure group,the phagocytic activity of hemocytes in each exposure group was significantly lower than that of the control group. The antioxidant system of R. philippinarum could not remove the free radicals produced in the body in time,leading to oxidative damage in the body,which was manifested as the change of antioxidant enzyme activity and the increase of malonic dialdehyde (MDA) content. The combined exposure of microplastics and pyrene significantly increased the activities of glutathione S-transferase (GST) in gill tissues, and significantly decreased the activities of catalase (CAT) and superoxide dismutase (SOD) in digestive gland tissues. Integrated biomarker response (IBR) analysis showed that the stress caused by combined exposure on R. philippinarum was higher than that of the single exposure group

a novel method for generating sketch form video summarization

视频摘要作为一种视频内容的简要表示,能够有效地增强用户浏览和组织视频的效率。提出了一种基于草图的视频摘要生成方法。与以往的静态视频摘要方法不同,该方法结合视频内容分析,利用草图在表达上的简洁性和抽象性,对视频中的主要内容进行表达。首先通过视频分析获取视频中的语义特征并提取关键帧,然后通过交互式的方法从关键帧中生成草图,最后进行摘要布局生成完整的视频摘要。实验结果表明,该方法能够有效突出视频的主要对象和主要事件,并具有较高的用户满意度