Label Attention Network for sequential multi-label classification: you were looking at a wrong self-attention

Most of the available user information can be represented as a sequence of timestamped events. Each event is assigned a set of categorical labels whose future structure is of great interest. For instance, our goal is to predict a group of items in the next customer's purchase or tomorrow's client transactions. This is a multi-label classification problem for sequential data. Modern approaches focus on transformer architecture for sequential data introducing self-attention for the elements in a sequence. In that case, we take into account events' time interactions but lose information on label inter-dependencies. Motivated by this shortcoming, we propose leveraging a self-attention mechanism over labels preceding the predicted step. As our approach is a Label-Attention NETwork, we call it LANET. Experimental evidence suggests that LANET outperforms the established models' performance and greatly captures interconnections between labels. For example, the micro-AUC of our approach is $0.9536$ compared to $0.7501$ for a vanilla transformer. We provide an implementation of LANET to facilitate its wider usage

Unusual Antonymy: Inter-Part-Of-Speech Interaction in English Fictional Discourse

The article focuses on the phenomenon of inter-part-of-speech antonymy and types of inter-part-of-speech antonymic oppositions typical of the English language and represented in authentic sources, in particular, fiction books of English-speaking writers. The paper analyzes cognitive foundation and linguistic sources of the oppositions in question, describes their range within each part of speech as well as contextual means of intensifying the oppositional contrast. The authors argue that the traditional point of view, according to which only words belonging to one and the same part of speech can form antonymic oppositions, is insufficient and claims that inter-part-of-speech antonymy has a semantical and grammatical nature as it is based on the ability of the language to give different categorial form to the same fragments of reality. The results of the research show that practically all works of fiction include inter-part-of-speech antonymic oppositions, which thus can be treated as a regular language phenomenon. The paper contributes to the theory of parts of speech, giving additional information about their interaction and its cognitive basis. It also enriches the theory of antonymy, proposing a wide approach to antonymic oppositions

Dramaturgic innovations in the works of L. Andreev and S. Przybyszewski: the reception aspect

Статья посвящена осмыслению близости новаторских драматургических опытов Л. Андреева и С. Пшибышевского.Восприятие в России начала ХХ в. Андреева как «двойника» Пшибышевского автор объясняет поиском прецедентности в новациях русского писателя в европейском искусстве, знаковой фигурой которого был польский декадент, являвшийся в то же время и частью российского культурного пространства. Основанием для сближения двух имен в критике служили близость мировоззренческих и эстетических установок, отразившаяся в художественной практике писателей, своеобразие их положения в современном литературном процессе — пограничное среди разных направлений. Кроме того, родственность двух писателей в читательском сознании в большей степени формировалась благодаря культуртрегерским усилиям двух авторитетных печатных органов символизма — журналов «Весы» и «Золотое руно», видевших свою миссию в сближении западноевропейского и русского искусства.В статье представлен и эмпирический план рецепции андреевских пьес как навеянных опытами польского декадента, и сопоставление теоретических установок двух драматургов: программного эссе Пшибышевского «О драме и сцене» (1902, на русском — 1904) и двух «Писем о театре» Андреева (1913-1914). Автор показывает, что, призывая к отказу от зрелищности на сцене и новому психологизму, Андреев, вслед за Пшибышевским, выстраивает свои положения на ключевом для европейского модернизма концепте «душа» («психе»). Завершается статья мыслями автора о включенности обоих писателей в европейский модернистский дискурс и о сходстве посмертных литературных репутаций двух писателей, повлиявших и на восприятие их драматургического . This article explores the similarity of Andreev’s and Przybyszewski’s innovative dramaturgic experiments. The author of the article suggests that the perception of Andreev as Przybyszewski’s «double» in the turn-of-20th-century Russia may be explained by a search for precedents in European art for the Russian writer’s innovations. The Polish decadent was an important figure in European art and, at the same time, a part of the Russian cultural space. Critics based their comparisons of the two authors on the similarity of their philosophical and aesthetical premises reflected in the writers’ works, as well as on the peculiarity of their position in the contemporary literary process – being on the borderline of different trends. Besides, the closeness of the two writers was, to a great degree, formed in the readers’ consciousness thanks to the Kulturträger efforts of two influential Symbolist publications – the journals «Scales» and «The Golden Fleece», which saw their mission in merging Western European and Russian art. The article presents both the empirical aspect of the reception of Andreev’s plays as inspired by experiments of the Polish decadent and the comparison between theoretical premises of the two playwrights — Przybyszewski’s programmatic essay «On Drama and the Stage» (1902, in Russian 1904) and Andreev’s two «Letters on the Theatre» (1913-14). The article’s author demonstrates that calling for the rejection of using theatre as entertainment as well as for the new psychologism, Andreev, following Przybyszewski, constructs his premises on the concept of soul («psyche») — the key concept for European modernism. At the end of the article the author suggests that both authors were included in the European modernist discourse and notes the similarity of the two writers’ posthumous literary reputations, which have also affected the reception of their dramatic heritage

Change in species composition of vegetation on various-aged set-aside lands of the Volga Delta

The object of the present research is set-aside lands of various ages. The study was aimed to identify the main biological groups of weed growing on set-aside lands of the Volga Delta, which were removed from production in different years. Within the study, species composition of set-aside lands’ vegetation was defined, which amounted to 28 species and 16 families. The plant community of set-aside lands includes such large families as Asteraceae (5 species), Poaceae (4 species), Brassicaceae (3 species). It was observed that quantitative species composition of set-aside lands’ flora has been changing depending on its age: the older a set-aside land is, the less species grow there. In spring and summer seasons, ephemeral, annual and biennial weeds prevailed, while in autumn perennial plants did: the latter were estimated of 75-80%, their wet weight amounted up to 70-92% of total weight due to the plentiful growth and development of a perennial rhizome plant named Phragmites australis (Cav.) Trin. ex Steudel. The research has lasted for 10 years and allowed observing a 14-32% increase in a number of plants belonging to a xerophyte group on longstanding set-aside lands with low level of soil moisture. Agro-ecosystems of various-aged set-aside lands hosted the development of flora having different vegetative weight that is capable of accumulating solar energy. Significant amount of accumulated energy reduced the entropy of the environment and improved its ecological state. On an old-aged set-aside land, corps of perennial plants vegetating for a long time have been maximally accumulating energy and gained 25712.42 MJ/ha

50 години Катедра „Социална медицина и организация на здравеопазването`

22 Май 201