Mining app reviews to support software engineering

The thesis studies how mining app reviews can support software engineering. App reviews —short user reviews of an app in app stores— provide a potentially rich source of information to help software development teams maintain and evolve their products. Exploiting this information is however difficult due to the large number of reviews and the difficulty in extracting useful actionable information from short informal texts. A variety of app review mining techniques have been proposed to classify reviews and to extract information such as feature requests, bug descriptions, and user sentiments but the usefulness of these techniques in practice is still unknown. Research in this area has grown rapidly, resulting in a large number of scientific publications (at least 182 between 2010 and 2020) but nearly no independent evaluation and description of how diverse techniques fit together to support specific software engineering tasks have been performed so far. The thesis presents a series of contributions to address these limitations. We first report the findings of a systematic literature review in app review mining exposing the breadth and limitations of research in this area. Using findings from the literature review, we then present a reference model that relates features of app review mining tools to specific software engineering tasks supporting requirements engineering, software maintenance and evolution. We then present two additional contributions extending previous evaluations of app review mining techniques. We present a novel independent evaluation of opinion mining techniques using an annotated dataset created for our experiment. Our evaluation finds lower effectiveness than initially reported by the techniques authors. A final part of the thesis, evaluates approaches in searching for app reviews pertinent to a particular feature. The findings show a general purpose search technique is more effective than the state-of-the-art purpose-built app review mining techniques; and suggest their usefulness for requirements elicitation. Overall, the thesis contributes to improving the empirical evaluation of app review mining techniques and their application in software engineering practice. Researchers and developers of future app mining tools will benefit from the novel reference model, detailed experiments designs, and publicly available datasets presented in the thesis

On the need of vibroacoustic axiomatics

The term ‘vibroacoustics’ is nowadays a commonly used notion of interdisciplinary scientific domain which links the elements of the vibration theory and theoretical acoustics with practical (engineering) methods of solving problems in the field of vibrations and noise minimization using increasingly developing measurement methods (observations). Unanswered remains the question whether the discipline defined in such a way constitutes a separate study and therefore needs implementation of its own axiomatics which orders the domain and facilitates teaching. This paper shows that the lack of uniform fundamental assumptions might easily lead to serious mistakes

DZIEDZICTWO PRZEMYSŁU – DZIEDZICTWO NIECHCIANE – DZIEDZICTWO NIEZNANE

Industrial heritage is often treated as a worse category of heritage itself. The cause of this state of affairs should be seen in the lack of necessary technical knowledge (“technical component”)and misunderstanding of the value of industrial heritage. The consequence of it is accepted or even intentional displacement.Any attempt to describe the heritage of the industry by using an art historian’s scientific and conceptual approach is a mistake. It is a “technical component” of the research that shows an extremely significant value in the process of the proper recognition of the industrial heritage.It allows to understand the relationship between the shape, form and the location of industrial buildings with their machines and devices conditioned by the nature of the technological process. It also allows to understand the relationship between the spatial layout of the industrial complex and the communication requirements inside the factory and its connection with the outside world.The legacy of industry is governed by four fundamental change’s directions:– revitalization,– restoration,– abandonment,– liquidation.Revitalization or restoration often takes place in the most brutal way – demolition of everything that is a historical remnant of a factory’s layout and the erection of a shopping centre on such a “tidy” site. Furthermore, the old name such as “printing house”, “brewery”, “manufactory” is frequently preserved. There are also positive examples of revitalization, e.g. the right approach to the authenticity of the historic industrial construction.Abandonment and liquidation deny the right of the industrial heritage existence, declining anyvalue of it.Dziedzictwo przemysłowe jest często traktowane jako gorsza kategoria samego dziedzictwa. Przyczyny takiego stanu rzeczy powinno doszukiwać się w braku niezbędnej wiedzy technicznej ("komponent techniczny") i niezrozumieniu wartości dziedzictwa przemysłowego. Konsekwencją tego jest akceptowane, a nawet celowe przemieszczenie. Każda próba opisania dziedzictwa przemysłowego przy pomocy podejścia naukowego jest błędem, ponieważ to "komponent techniczny " badań wskazywane jest jako kluczowy dla określenia wartość dziedzictwa przemysłowego. Pozwala to zrozumieć zależność między kształtem, formą i umiejscowieniem budynków przemysłowych z ich maszynami i urządzeniami technologicznymi, a także związek między układem przestrzennym kompleksu przemysłowego a wymaganiami komunikacyjnymi wewnątrz zakładów przemysłowych i jego połączenie ze światem zewnętrznym. Dziedzictwo przemysłu regulują cztery podstawowe kierunki zmian: - Rewitalizacja, - Restauracja, - Porzucenie, - Likwidacja. Rewitalizacja lub restauracja często odbywa się w sposób najbardziej brutalny – wyburzenie wszystkiego, co jest historyczną pozostałością po fabrycznym układzie i budowa centrum handlowego w tak "wyczyszczonym" miejscu. Ponadto, stara nazwa taka jak "drukarnia", "browar", "manufaktura" jest często zachowywana. Istnieją również pozytywne przykłady rewitalizacji, np. właściwe podejście do autentyczności historycznej konstrukcji przemysłowej. Porzucenie i likwidacja zaprzeczają prawu istnienia dziedzictwa przemysłowego, zmniejszając jego wartość

Pomniki historii - spojrzenie krytyczne

The  monument of history as a concept appeared in the Act of 15 February 1962 on the Protection of Cultural Property and Museums. In the current legal act: The Act of 23 July 2003 on the protection and care of historical monuments, the monument of history is a form of protection of historical monuments. Since 1962, no rules have been introduced to cover the criteria for selecting monuments and the methods of preparing and processing applications for recognition as historical monuments. As a result, the recognition of real estate monuments as monuments of history is burdened with a high degree of discretion. The list of 105 historical monuments is not representative either quantitatively or qualitatively in relation to the entire collection of monuments entered in the register of monuments. It is necessary to introduce regulations governing this state, as well as clear rules for financing the conservation of monuments recognized as historical monuments.Pomnik historii jako pojęcie pojawiło się w ustawie z dnia 15 lutego 1962 r. o ochronie dóbr kultury i o muzeach. W obecnym akcie prawnym: ustawie z dnia 23 lipca 2003 r. o ochronie zabytków i opiece nad zabytkami pomnik historii jest formą ochrony zabytków. Od 1962 r. nie wprowadzono żadnych zasad obejmujących kryteria wyboru zabytków oraz sposoby przygotowywania i procedowania wniosków o uznanie za pomnik historii. Powoduje to, że uznawanie zabytków nieruchomych za pomniki historii jest obarczone dużą uznaniowością. Lista obejmująca 105 pomników historii nie jest reprezentatywna ani ilościowo, ani jakościowo w stosunku do całego zasobu zabytków wpisanych do rejestru zabytków. Konieczne jest wprowadzenie przepisów regulujących ten stan, a także jasne zasady finansowania prac konserwatorskich zabytków uznanych za pomniki historii

SŁUŻBY OCHRONY ZABYTKÓW W POLSCE – USYTUOWANIE PRAWNE OD 1918 R. DO DZIŚ, PERSPEKTYWA ZMIAN OD 2017R.

In Poland, protection of historic monuments and sites is nearly one hundred years old and it has got a highly distinctive feature – the more recent the events are, the more frequent and more profound changes can be observed; the most significant ones take place in the 1990s . In general, it can be said that the organisation of historic preservation service remained constant at the turn of the 19th and 20th centuries.Administrative bodies responsible for historic preservation are still organised under the Act of 23 July 2003 on Protection and Guardianship of Monuments and Sites. This organisational system, however, is no longer fully effective in Poland.It is therefore necessary to change legislation under which the vertical organisational structure of conservation administration would be restored - with one General Historic Preservation Officer (being still the secretary or undersecretary of state in the Ministry of Culture and National Heritage) to whom several regional historic preservation officers are directly responsible and subordinate. Members of staff of the Ministry of Culture and National Heritage undertook a legislative initiative aimed at achieving this objective. As a result, on 25 January 2016 the government decided to begin works amending the Act on Protection and Guardianship of Monuments and Sites.In Poland, protection of historic monuments and sites is nearly one hundred years old and it has got a highly distinctive feature – the more recent the events are, the more frequent and more profound changes can be observed; the most significant ones take place in the 1990s . In general, it can be said that the organisation of historic preservation service remained constant at the turn of the 19th and 20th centuries.Administrative bodies responsible for historic preservation are still organised under the Act of 23 July 2003 on Protection and Guardianship of Monuments and Sites. This organisational system, however, is no longer fully effective in Poland.It is therefore necessary to change legislation under which the vertical organisational structure of conservation administration would be restored - with one General Historic Preservation Officer (being still the secretary or undersecretary of state in the Ministry of Culture and National Heritage) to whom several regional historic preservation officers are directly responsible and subordinate. Members of staff of the Ministry of Culture and National Heritage undertook a legislative initiative aimed at achieving this objective. As a result, on 25 January 2016 the government decided to begin works amending the Act on Protection and Guardianship of Monuments and Sites

On oracle factoring of integers

We present an oracle factorisation algorithm which finds a nontrivial factor of almost all squarefree positive integers $n$ based on the knowledge of the number of points on certain elliptic curves in residue rings modulo $n$

Mining and searching app reviews for requirements engineering: Evaluation and replication studies

App reviews provide a rich source of feature-related information that can support requirement engineering activities. Analysing them manually to find this information, however, is challenging due to their large quantity and noisy nature. To overcome the problem, automated approaches have been proposed for ‘feature-specific analysis’. Unfortunately, the effectiveness of these approaches has been evaluated using different methods and datasets. Replicating these studies to confirm their results and to provide benchmarks of different approaches is a challenging problem. We address the problem by extending previous evaluations and performing a comparison of these approaches. In this paper, we present two empirical studies. In the first study, we evaluate opinion mining approaches; the approaches extract features discussed in app reviews and identify their associated sentiments. In the second study, we evaluate approaches searching for feature-related reviews. The approaches search for users’ feedback pertinent to a particular feature. The results of both studies show these approaches achieve lower effectiveness than reported originally, and raise an important question about their practical use

Cudzoziemiec niepożądany jako kategoria prawna

Jacek Jagielski - Uniwersytet WarszawskiPaweł Dąbrowski - Ośrodek Badań nad Migracjami Uniwersytetu Warszawskieg