OPI-JSA at SemEval-2017 Task 1: Application of Ensemble learning for computing semantic textual similarity

Martyna Śpiewak, Piotr Sobecki, Daniel Karaś

2017 W: 11th International Workshop on Semantic Evaluations (SemEval-2017) : Proceedings of the Workshop / Daniel Cer, David Jurgens, Steven Bethard,Marine Carpuat, Marianna Apidianaki, Saif M. Mohammad; Vancouver: Association for Computational Linguistics, s. 139-143

11th International Workshop on Semantic Evaluation. Vancouver, 2017-08-03 - 2017-08-04

Semantic Textual Similarity (STS) evaluation assesses the degree to which two parts of texts are similar, based on their semantic evaluation. In this paper, we describe three models submitted to STS SemEval 2017. Given two English parts of a text, each of proposed methods outputs the assessment of their semantic similarity.We propose an approach for computing monolingual semantic textual similarity based on an ensemble of three distinct methods. Our model consists of recursive neural network (RNN) text auto-encoders ensemble with supervised a model of vectorized sentences using reduced part of speech (PoS) weighted word embeddings as well as unsupervised a method based on word coverage (TakeLab). Additionally, we enrich our model with additional features that allow disambiguation of ensemble methods based on their efficiency. We have used Multi-Layer Perceptron as an ensemble classifier basing on estimations of trained Gradient Boosting Regressors.Results of our research proves that using such ensemble leads to a higher accuracy due to a fact that each member-algorithm tends to specialize in particular type of sentences. Simple model based on PoS weighted Word2Vec word embeddings seem to improve performance of more complex RNN based auto-encoders in the ensemble. In the monolingual English-English STS subtask our Ensemble based model achieved mean Pearson correlation of .785 compared with human annotators.

https://aclanthology.info/pdf/S/S17/S17-2018.pdf

Organizational learning in public administration in Poland. The issue of the politicization and the adminisrative decision-making process

Łukasz Widła - Domaradzki, Mateusz Robert Trochymiak

2017 W: European Administrative Space: Spreading Standards, Building Capacities / Ivan Kopric, Polonca Kovac; Bratysława: NISPAcee Press, s. 115-134

One of the oldest questions raised by public policy scientists is the problem of politicization of public administration. Since Max Weber there is a silent assumption in the thinking of public policy managers that public administration must be independent from politicians in the field of execution of public policies. The argument for that is that independent officials will execute political decision in the rational way. Independent in sense that they are chosen to do their job because of their competence, skills and knowledge and not because of their sympathy to the particular ideas and values of ruling parties. Since 19th century a lot of research has been done and it has been proven that in public policy process it is barely possible to separate the influence of politicians and the administrative decisions. One of the reasons for this is that politicians are always looking for ways to control administrative decisions because they are responsible in front of the voters and other public actors. On the other hand, in the democratic states there is no proof of full control of administration by the politicians and policy execution. In fact, administration many times has proven to be politic-proof and focused on the interests of the bureaucrats as a group, rather than political goals. One of the reasons being that in the 20th century administration as an executive apparatus of states became the world’s largest companies, with their own specific rules and qualified workers. Because of their professionalization and experience the officials as a group are hard to replace, which gives them power to exert their interests. In other words, the relation between politics and administration is a complex one, with many interests at play. Despite the common assumptions that too much politicization cannot be good for the public policy process, this phenomenon is still a black box. We don’t know exactly how political influence affects and changes administrative decision, and how deep does it go. In Poland there is a common opinion that administration is strongly dependent from the political parties, which is observable mainly first months after the elections when higher-officials and official managers are often replaced by those with political support of the winning party. Also, the politicians from cabinets in ministries often interfere in the process of administrative planning. We assume that those changes and interferences produce some level of uncertainty in administrative organizations, which makes the process of improving management and administrative structures more difficult. We want to know how does this process look like and what factors are correlated to it. In project “Ministries as learning organizations” (MUS) we observed this phenomenon in relation to changes in internal structures of administration and management. For this effect we used structural modelling techniques to better understand the relations between organizational learning and political adaptation. As we discovered, there is an optimal level of Political Adaptation specific for every type of Department, but in some cases different than maximum.

http://www.nispa.org/publication_details.php?p_id=203&pg=8

Polish business models of technology transfer centres against foreign leaders. Conlusions of the case studies

Marta Bojko, Marzena Feldy, Barbara Kowalczyk, Anna Knapińska

2017 Central European Review of Economiscs & Finance, T. 21, z. 5, s. 37-58

The authors analyse business models existing in leading technology transfer academic centres throughout the world, in order to find out to what extent they are implemented by entities in Poland. Their attention is focused on such components of business models as: legal form and methods of financing, the mission of operations, the work integration and the mechanisms of collaboration with the science and commercial sector. The study is qualitative, based on the analysis of the case studies of foreign entities. The diversity of global solutions enables a critical look at the activities of Polish technology transfer centres and points to the choice of models which are best suited to their domestic conditions. According to the authors, the improved effectiveness of technology transfer centres is an important part of the debate on the transformation of traditional universities into entrepreneurial universities.

http://economic-research.pl/Journals/index.php/ceref/article/view/609

Predicting Stock Trends Based on Expert Recommendations Using GRU/LSTM Neural Networks

Przemysław Buczkowski

2017 W: Foundations of Intelligent Systems 23rd International Symposium, ISMIS 2017, Warsaw, Poland, June 26-29, 2017, Proceedings / Marzena Kryszkiewicz, Annalisa Appice, Dominik Ślęzak, Henryk Rybinski, Andrzej Skowron, Zbigniew W. Raś; Cham: Springer, s. 708-717

International Symposium on Methodologies for Intelligent Systems - Foundations of Intelligent Systems. Warszawa , 2017-06-26 - 2017-06-29

Predicting the future value of the stock is very difficult task, mostly because of a number of variables that need to be taken into account. This paper tackles problem of stock market predicting feasibility, especially when predictions are based only on a subset of available information, namely: financial experts’ recommendations. Analysis was based on data and results from ISMIS 2017 Data Mining Competition. An original method was proposed and evaluated. Participants managed to perform substantially better than random guessing, but no participant outperformed baseline solution.

https://link.springer.com/chapter/10.1007/978-3-319-60438-1_69

Smartphone app as a museum guide. Testing the Open Art application with blind, deaf, and sighted users

Anna Jankowska, Agnieszka Szarkowska, Krzysztof Krejtz, Anita Fidyka, Jarosław Kowalski, Marcin Wichrowski

2017 Rivista Internazionale di Tecnica della Traduzione = International Journal of Translation, T. 17, s. 113-130

In this article, we report on the results of a usability study on the Open Art mobile application conducted in a museum with blind, deaf and sighted/hearing people. The Open Art application was created following the principles of Universal Design to give all types of users the opportunity to use the app on equal terms. The main goal of the study reported here was to assess how the application is used in museum space. We tested 13 people: 1 blind, 5 partially sighted, 3 deaf and hard of hearing as well as 4 sighted/ hearing participants. The results show that the app was generally well received and that its use has a positive influence on museum visiting experience.

https://www.openstarts.units.it//handle/10077/17354

Software development process and testing legislative acts

Jakub Kierzkowski

2017 EUNIS journal of higher education IT, T. 2017-1, s. 36-41

The purpose of this paper is to describe legislative process using the terms of software engineering and to propose some new manners of detecting and avoiding defects in new law acts. The idea of software tester’s approach to lawmaking comes from the observation that software development and legislative process are similar. Paragraph 2 contains an explanation of that similarity, definition of some basic software testing terms and a basic discussion on the topic. Paragraph 3 presents some basic software development models. In paragraph 4, one can find a brief description of the legislative process in the Republic of Poland. Paragraph 5 contains a discussion on concepts concerning making better law. I give two new ideas: dividing legislative bills into two documents and setting off the Law Testing Committee, that would lead to better validation and verification of legislative acts.

https://www.eunis.org/eunis2017/wp-content/uploads/sites/10/2017/06/EUNIS_2017_paper_37.pdf

Stratified Propensity Score Matching – quasi-eksperymentalny schemat badawczy, wykorzystany na potrzeby ewaluacji wpływu opartej na teorii, w sytuacji braku zmiennej zależnej

Dominika Wojtowicz, Łukasz Widła - Domaradzki

2017 W: Ewaluacja oparta na teorii w złożonym otoczeniu społeczno-ekonomicznym / Katarzyna Hermann-Pawłowska, Teresa Wyszyńska, Jacek Pokorski, Zuzanna Popis ; Warszawa: Polska Agencja Rozwoju Przedsiębiorczości, s. 117-138

https://link.springer.com/chapter/10.1007/978-3-319-73888-8_31

The National Repository of Theses: A Short Polish Case Study

Jarosław Protasiewicz, Małgorzata Stefańczuk, Andrzej Sadłowski

2017 EUNIS journal of higher education IT, T. 2017-1, s. 113-120

The aim this study is to outline the main assumptions and challenges that occurred while introducing the national repository of theses in Poland. More specifically, we discuss the legal basis and other conditions of the repository, its architecture, implemented business processes, and some the most interesting technical details and performance statistics. Particularly, we show that a simple datastore based only on a filesystem could be more efficient and cheaper than a NoSQL database, which is quite fashionable nowadays. Presented comments and remarks regarding

development and deployment of the information system and selected statistics of the working software may help other parties to improve their repositories or take a decision regarding new solutions.

https://www.eunis.org/eunis2017/wp-content/uploads/sites/10/2017/06/EUNIS_2017_paper_27.pdf

Using coefficient K to distinguish ambient/focal visual attention during map viewing

Krzysztof Krejtz, Arzu Coltekin, Andrew Duchowski, Anna Niedzielska

2017 Journal of Eye Movement Research, T. 10, Z. 2, s. 1-13

We demonstrate the use of the ambient/focal coecient K for studying the dynamics of visual behavior when performing cartographic tasks. Participants viewed a cartographic map and satellite image of Barcelona while performing a number of map-related tasks. Cartographic maps can be viewed as summary representations of reality, while satellite images are typically more veridical, and contain considerably more information. Our analysis of traditional eye movement metrics suggests that the satellite representation facilitates longer fixation durations, requiring greater scrutiny of the map. The cartographic map affords greater peripheral scanning, as evidenced by larger saccade amplitudes. Evaluation of K elucidates task dependence of ambient/focal attention dynamics when working with geographic visualizations: localization progresses from ambient to focal attention; route planning fluctuates in an ambient-focal.ambient pattern characteristic of the three stages of route end point localization, route following, and route confirmation.

http://bw.swps.edu.pl/info/article/SWPS4d5e3be6bb6b4a9185b416339fb46c1d/

Zróżnicowanie innowacyjności przedsiębiorstw hotelarskich w Polsce − studium empiryczne

Marcin Olszewski, Barbara Kowalczyk

2017 PRACE NAUKOWE UNIWERSYTETU EKONOMICZNEGO WE WROCŁAWIU, z. 473, s. 390-398

The competitiveness of tourism enterprise largely depends on its ability to create
innovations. This empirical article presents the results of the quantitative study carried out in
400 Polish hotels. The aim of this article is to identify the level of innovation activity in hotel
companies in Poland and its differentiation in terms of size, standard and affiliation to a hotel
chain. The first part of the article presents a review of previous studies on the differentiation
of the innovation activity in the hotel industry. The second part introduces the methodology of
empirical research. The results are presented in the third part. The survey shows that the most
innovative hotels in Poland are large and belong to international hotel chains.

http://cejsh.icm.edu.pl/cejsh/element/bwmeta1.element.desklight-ff2f8575-169f-4c6a-b6e9-1bc133636416