15 research outputs found

    Electromechanical effect in freely suspended liquid crystal films

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    This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Serguei V. Yablonskii, Toshiyasu Oue, Hidetaka Nambu, Aleksey S. Mikhailov, Masanori Ozaki, and Katsumi Yoshino, Appl. Phys. Lett. 75, 64 (1999) and may be found at https://doi.org/10.1063/1.124325

    Acceptability Judgements via Examining the Topology of Attention Maps

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    The role of the attention mechanism in encoding linguistic knowledge has received special interest in NLP. However, the ability of the attention heads to judge the grammatical acceptability of a sentence has been underexplored. This paper approaches the paradigm of acceptability judgments with topological data analysis (TDA), showing that the geometric properties of the attention graph can be efficiently exploited for two standard practices in linguistics: binary judgments and linguistic minimal pairs. Topological features enhance the BERT-based acceptability classifier scores by 88%-2424% on CoLA in three languages (English, Italian, and Swedish). By revealing the topological discrepancy between attention maps of minimal pairs, we achieve the human-level performance on the BLiMP benchmark, outperforming nine statistical and Transformer LM baselines. At the same time, TDA provides the foundation for analyzing the linguistic functions of attention heads and interpreting the correspondence between the graph features and grammatical phenomena.Comment: Accepted to EMNLP 2022 Finding

    Seasonality of isotopic and chemical species and biomass burning signals remaining in wet snow in the accumulation area of Sofiyskiy Glacier, Russian Altai Mountains

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    Preliminary glaciological investigation was carried out on the accumulation area of Sofiyskiy Glacier, Russian Altai Mountains in July 2000. Analyses of a 12.3m core and 3m deep pit samples show that seasonal variations of δ^O, tritium and melt features remained in the wet snow layers. Annual layer thickness determined on the basis of seasonality of these elements for 12.3m core is 0.99m of water on average in 1994-1999 with a minimum in 1998 when the minimum mass balance was observed for three other glaciers in the Altai Mountains. High correlations of NH_4^+ concentration with concentrations of K^+, SO_4^2, NO_3^- and PO_4^ are found. NH_4^+ and K^+ are considered to be of biomass burning origin, and PO_4^ and NH_4^+ are due to chemical ingredients used for fire extinction in biomass burning

    Dielectric electroactive polymer

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    Dielectric electroactive polymer comprising an elastomer layer arranged between two compliant elastomer electrodes characterized by the fact that at least one of said compliant elastomer electrodes is obtained by ion implantation on said elastomer layer. The dielectric electroactive polymer according to the invention may advantageously be used in an actuator, a sensor or in a power source. The invention also includes a process for manufacturing a dielectric electroactive polymer
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