74 research outputs found
PREDA: An R-package to identify regional variations in genomic data
No full textChromosomal patterns of genomic signals represent molecular ngerprints that may reveal how the local structural organization of a genome impacts the functional control mechanisms. Thus, the integrative analysis of multiple sources of genomic data and information deepens the resolution and enhances the interpretation of stand-alone high-throughput data. In this note, we present PREDA (Position RElated Data Analysis), an R package for detecting regional variations in genomics data. PREDA identies relevant chromosomal patterns in high-throughput data using a smoothing approach that accounts for distance and density variability of genomics features. Custom-designed data structures allow efciently managing diverse signals in different genomes. A variety of smoothing functions and statistics empower exible and robust workows. The modularity of package design allows an easy deployment of custom analytical pipelines. Tabular and graphical representations facilitate downstream biological interpretation of results. © The Author 2011. Published by Oxford University Press. All rights reserved
The Hegemonic Gaze and East-Central Europe - Challenging the Totalitarian Paradigm
No full textThe chapter introduces the notion of the "hegemonic gaze" in relation to the representation of East-Central Europe, demonstrating how the artist becomes interpellated as a regional subject, becoming simultaneously included and othered. It begins by examining the complexities involved in defining the region and the power dynamics involved in naming and being named. The author argues that different terms produce specific subject positions, reinforcing certain narratives about the region and foregrounding the end of communism and the failure of the socialist project.
Through the lens of Stuart Hall's theory of encoding and decoding, the chapter explores how exhibitions and artworks depicting socialist monuments and architecture often become simplified and reinterpreted within the global art discourse. The author shows how the ‘‘hegemonic gaze’’ reinforces existing narratives and imposes meanings. Despite artists' efforts to engage with the complexities of the past, their work is often interpellated within predetermined frameworks that limit its interpretation
Adversarial Authorship Attribution in Open-Source Projects
No full textOpen-source software is open to anyone by design, whether it is a community of developers, hackers or malicious users. Authors of open-source software typically hide their identity through nicknames and avatars. However, they have no protection against authorship attribution techniques that are able to create software author profiles just by analyzing software characteristics. In this paper we present an author imitation attack that allows to deceive current authorship attribution systems and mimic a coding style of a target developer. Withing this context we explore the potential of the existing attribution techniques to be deceived. Our results show that we are able to imitate the coding style of the developers based on the data collected from the popular source code repository, GitHub. To subvert author imitation attack, we propose a novel author obfuscation approach that allows us to hide the coding style of the author. Unlike existing obfuscation tools, this new obfuscation technique uses transformations that preserve code readability. We assess the effectiveness of our attacks on several datasets produced by actual developers from GitHub, and participants of the GoogleCodeJam competition. Throughout our experiments we show that the author hiding can be achieved by making sensible transformations which significantly reduce the likelihood of identifying the author’s style to 0% by current authorship attribution systems
Une communauté de lecteurs à l’aube de la Révolution: Dom Bougre aux états généraux (1789)
No full textDom Bougre aux États généraux (1789) is the first in a series of pamphlets published during the revolutionary period, offering different visions of contemporary events. Its main character is taken from L’Histoire de Dom Bougre by Gervaise de La Touche, an 18th century libertine bestseller. By exposing the depravity of the clergy, the corrupt ruling classes, and the ineffectiveness of the political reforms, the pornographic Dom Bougre fits into the social and political debate. While keeping in mind the contextual and intertextual references in the pamphlet, I will analyze the role of the reader in decoding the political message and the strategies adopted by the anonymous author to guide the interpretation of the text
Afilierea lui Mattei Dogan la sociologia românească (1990-2000)
No full textThe article reconstructs the mechanisms through which the work of the French scholar of Romanian origin, Mattei Dogan was brought to light in Romania after 1990 thanks to the efforts of the community of sociologists. Romanian sociologists used three methods to assimilate the author who is considered the founder of comparative political analysis and who left Romania immediately after graduating with a bachelor’s degree in sociology under Henri H. Stahl supervision: they translated Dogan’s articles and books, they made him a member of prestigious institutions and they included him in the post-communist effort to reclaim the legacy of the school founded by Dimitrie Gusti. To capture the institutional and editorial strategies that were used, I conducted interviews with several protagonists of the Romanian sociology renaissance movement. I also used epistolary resources, sociology and political science journals, press articles, as well as documents from the archives of the University of Bucharest and from the Mattei Dogan Foundation. The article shows the success of some methods and the failure of others. It also brings to light a text that was ignored in the studies and bibliographies that discuss the work of the scholar who was born in Roman in 1920 and who went by the name of Matei Pinsler until 1945 (Preda, 2020). This research paper is relevant for various reasons. Firstly, it complements not only the biography of Dogan, but also that of Henri H. Stahl. Furthermore, it highlights the trajectory of a discipline in a period of dissociation with the communist past while restoring the connections with the interwar period
Afilierea lui Mattei Dogan la sociologia românească (1990-2000)
No full textThe article reconstructs the mechanisms through which the work of the French scholar of Romanian origin, Mattei Dogan was brought to light in Romania after 1990 thanks to the efforts of the community of sociologists. Romanian sociologists used three methods to assimilate the author who is considered the founder of comparative political analysis and who left Romania immediately after graduating with a bachelor’s degree in sociology under Henri H. Stahl supervision: they translated Dogan’s articles and books, they made him a member of prestigious institutions and they included him in the post-communist effort to reclaim the legacy of the school founded by Dimitrie Gusti. To capture the institutional and editorial strategies that were used, I conducted interviews with several protagonists of the Romanian sociology renaissance movement. I also used epistolary resources, sociology and political science journals, press articles, as well as documents from the archives of the University of Bucharest and from the Mattei Dogan Foundation. The article shows the success of some methods and the failure of others. It also brings to light a text that was ignored in the studies and bibliographies that discuss the work of the scholar who was born in Roman in 1920 and who went by the name of Matei Pinsler until 1945 (Preda, 2020). This research paper is relevant for various reasons. Firstly, it complements not only the biography of Dogan, but also that of Henri H. Stahl. Furthermore, it highlights the trajectory of a discipline in a period of dissociation with the communist past while restoring the connections with the interwar period
Manifestations of Death in Two Collections of Short-Stories: 'L’horizon bleu de la mort' by Marin Preda and 'Geotenn ar Werhez' by Jakez Rioù
No full textThis article offers a reading of two volumes of short stories, 'Geotenn ar Werhez' by Breton author Jakez Rioù (1899-1937) and 'L’horizon bleu de la mort' by the Romanian Marin Preda. Both works describe traditional agrarian societies, one in western the other in eastern Europe, in the early to mid-twentieth century. We examine here attitudes to death and manifestations of death in Rioù’s and Preda’s writing. The thrust of the article is to suggest that these works provide rare insights into rural life in Europe before the advent of mechanisation. This leads us to consider litterature in the Celtic languages, Breton
in this instance, and Romanian, as a primary sources for evidence of aspects of European culture little documented in the metropolitan traditions of other languages. Rioù’s text is translated by Youenn Drezen, Preda’s by Micaela Slăvescu.412971088Studia Romanica Posnaniensi
Dataset Characteristics for Reliable Code Authorship Attribution
No full textCode authorship attribution aims to identify the author of software source code according to the author's unique coding style characteristics. The lack of benchmark data in the field, forced researchers to employ various resources that often did not reflect real programming practices. Throughout the years, research studies have used textbook examples, students' programming assignments, faculty code samples, code from programming competitions and files retrieved from open-source repositories as research objects. The diversity of the data raised concerns about the feasibility of capturing the appropriate data characteristics to reliably evaluate code attribution. In this paper, we investigate these concerns and analyze the effect of the dataset characteristics and feature elimination techniques on the accuracy of code attribution. Unlike the majority of the work done in this field, which mainly concentrates on designing new features, we explore the nature of the data used in previous studies and assess the factors that influence the attribution task. Within this analysis, we investigate the robustness of three feature sets regarded as reliable benchmarks in the attribution research. Based on our findings, we define a process for deriving a reduced set of features for accurate and predictable attribution and make recommendations on the dataset characteristics
A Compact Resistor-Based Temperature Sensor
No full textSmart temperature sensors can be used for the temperature compensation of micro-electromechanical (MEMS) frequency references. From the different types of CMOS temperature sensors, resistor-based sensors are currently the most energy-efficient. However, compared with bipolar transistor (BJT)-based temperature sensors, resistors suffer from higher nonlinearity and spread of their temperature dependencies which require multi-point calibration to achieve similar accuracy. Given that a new design direction should attempt to combine the best features of both types of sensors, the target of this work is to develop a resistor-based temperature sensor that should be more energy-efficient than BJT-based sensors, but with a competitive area.This thesis investigates circuit techniques to obtain a design of a compact resistor-based temperature sensor (area < 0.1mm2) which is energy-efficient,while achieving high resolution ( sub - mK) and high accuracy (inaccuracy< 0.1°C).To achieve the target specifications, a frequency-locked-loop (FLL) is implemented around the sensing element. Design directions were presented,consisting of a continuous-time readout and a discrete-time readout together with their limitations and performance. Based on the simulation results, it can be stated that the combination between the FLL readout and the Wien-bridge sensing element enables the design of a compact sensor which achieves the target specifications.Electrical Engineering | Microelectronic
Invited Article: Complex vibrational susceptibility by interferometric Fourier transform stimulated Raman scattering
No full textWe introduce interferometric (I) Fourier-transform (FT) stimulated Raman scattering (SRS) to measure the complex nonlinear vibrational susceptibility of molecules. The technique is a simple variation of FT-SRS, which was previously demonstrated to combine the very high sensitivity of single-channel lock-in detection with the spectral resolution afforded by FT spectroscopy. In IFT-SRS, a local oscillator, temporally anticipated with respect to the broadband pump pulse, enables the interferometric detection of both real and imaginary parts of the nonlinear susceptibility, whose spectrum is recorded in the time domain by scanning the delay of the local oscillator using a birefringent common-path interferometer. We apply IFT-SRS to record the complex vibrational response of different solvents and their mixtures. (C) 2018 Author(s)
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