Incorporating Graph Information in Transformer-based AMR Parsing

Abstract Meaning Representation (AMR) is a Semantic Parsing formalism that aims at providing a semantic graph abstraction representing a given text. Current approaches are based on autoregressive language models such as BART or T5, fine-tuned through Teacher Forcing to obtain a linearized version of the AMR graph from a sentence. In this paper, we present LeakDistill, a model and method that explores a modification to the Transformer architecture, using structural adapters to explicitly incorporate graph information into the learned representations and improve AMR parsing performance. Our experiments show how, by employing word-to-node alignment to embed graph structural information into the encoder at training time, we can obtain state-of-the-art AMR parsing through self-knowledge distillation, even without the use of additional data. We release the code at \url{http://www.github.com/sapienzanlp/LeakDistill}.Comment: ACL 2023. Please cite authors correctly using both lastnames ("Mart\'inez Lorenzo", "Huguet Cabot"

Землепорядні аспекти формування екологічного каркасу оптимального агроланшафту

Артамонов, В. В. Землепорядні аспекти формування екологічного каркасу оптимального агроланшафту = Agricultural aspects of the formation of ecological framework for an optimal agrolandscap / В. В. Артамонов, М. Г. Василенко, П. Б. Міхно // Зб. наук. пр. НУК. – Миколаїв : НУК, 2018. – № 1–2 (473). – С. 32–36.Анотація. Аналізується проблема оптимізації агроландшафту через просторову та структурно-функціональну організацію його екологічного каркасу із стабілізуючих земельних угідь. Оцінено позитивний вплив лісів і водоймищ на характеристики мікроклімату агроландшафту. Основним результатом дослідження став розвиток системного підходу до формування екологічного каркасу оптимального агроландшафту.Abstract. The agrolandscape optimization problem has been analyzed through the formation and the structural and functional spatial organization of its ecological framework of the constituent stabilizing lands. Modern theoretical and practical proposals of the geographers, land surveyors and ecologists for the optimization of agrolandscapes refer to the definition of some median ratios of the areas of its constituent land within different taxonomic units. At the same time, no norms of the optimal correlation of land in agricultural landscapes recommended by the scientific research in Ukrainian agrarian landscapes have been introduced by the legislation of Ukraine. Requirements for the mutual spatial dislocation of the components of the optimal landscape are also not defined. Hence, the authors propose an approach to the spatial organization of the agrolandscape on the basis of assessing and taking into account the influence of climate regulation of afforestation and water bodies on other agrolandscape components. Formation of the ecological framework provides such a territorial location of arable lands that they end up in the zones of a permanent or periodic positive influence of forests and water bodies. The main result of the study is the development of a systematic approach to the formation of the ecological framework for the optimal agrolandscape on the basis of a substantiated transformation of the dimensions of its components and their rational mutual spatial allocation. The positive influence of forests and water bodies on the characteristics of the agrolandscape’s microclimate is evaluated as well.Аннотация. Анализируется проблема оптимизации агроландшафта посредством пространственной и структурно-функциональной организации его экологического каркаса из стадилизирующих земельных угодий. Выполнена оценка положительного влияния лесов и водоемов на характеристики микроклимата агроландшафта. Основным результатом исследования является развитие системного подхода к формированию экологического каркаса оптимального агроландшафта

Землевпорядні аспекти формування екологічного каркасу оптимального агроландшафту

The agrolandscape optimization problem has been analyzed through the formation and the structural and functional spatial organization of its ecological framework of the constituent stabilizing lands. Modern theoretical and practical proposals of the geographers, land surveyors and ecologists for the optimization of agrolandscapes refer to the definition of some median ratios of the areas of its constituent land within different taxonomic units. At the same time, no norms of the optimal correlation of land in agricultural landscapes recommended by the scientific research in Ukrainian agrarian landscapes have been introduced by the legislation of Ukraine. Requirements for the mutual spatial dislocation of the components of the optimal landscape are also not defined. Hence, the authors propose an approach to the spatial organization of the agrolandscape on the basis of assessing and taking into account the influence of climate regulation of afforestation and water bodies on other agrolandscape components. Formation of the ecological framework provides such a territorial location of arable lands that they end up in the zones of a permanent or periodic positive influence of forests and water bodies. The main result of the study is the development of a systematic approach to the formation of the ecological framework for the optimal agrolandscape on the basis of a substantiated transformation of the dimensions of its components and their rational mutual spatial allocation. The positive influence of forests and water bodies on the characteristics of the agrolandscape’s microclimate is evaluatedas well.Анализируется проблема оптимизации агроландшафта посредством пространственной и структурно-функциональной организации его экологического каркаса из стабилизирующих земельных угодий. Выполнена оценка положительного влияния лесов и водоемов на характеристики микроклимата агроландшафта. Основным результатом исследования является развитие системного подхода к формированию экологического каркаса оптимального агроландшафта.Аналізується проблема оптимізації агроландшафту через просторову та структурно-функціональну організацію його екологічного каркасу із стабілізуючих земельних угідь. Оцінено позитивний вплив лісів і водоймищ на характеристики мікроклімату агроландшафту. Основним результатом дослідження став розвиток системного підходу до формування екологічного каркасу оптимального агроландшафту