Fano resonances and Aharonov-Bohm effects in transport through a square quantum dot molecule

We study the Aharonov-Bohm effect in a coupled 2$\times$2 quantum dot array with two-terminals. A striking conductance dip arising from the Fano interference is found as the energy levels of the intermediate dots are mismatched, which is lifted in the presence of a magnetic flux. A novel five peak structure is observed in the conductance for large mismatch. The Aharonov-Bohm evolution of the linear conductance strongly depends on the configuration of dot levels and interdot and dot-lead coupling strengths. In addition, the magnetic flux and asymmetry between dot-lead couplings can induce the splitting and combination of the conductance peak(s).Comment: 15 pages, 7 figures, Revtex, to be published in Phys. Rev.

Paraphrased plagiarism detection using sentence similarity

The paper describes an approach to plagiarism detection within Plag-EvalRus-2017 competition. Our system leverages deep parsing techniques to be able to detect moderately disguised plagiarism. We participated in the two tracks of the competition: source retrieval (sources detection) and text alignment (paraphrased plagiarism detection). There are various cases of plagiarism presented in datasets of both tracks. They vary by the level of disguise that was used while reusing text. The results show that our method performed quite well for detecting moderately disguised forms of plagiarism

Phase-structural and non-linear effects in heterogeneous systems

This theme issue is concerned with modern achievements in the theory, computational and experimental studies of the phase transitions that occur in heterogeneous systems. The papers are divided into six thematic sections devoted to patterned formations, transport and magnetic phenomena, hydrodynamic flows as well as biological applications. Special attention is paid to various non-linear effects met in these processes and leading to some unexpected at first glance physical aspects

Paraphrased plagiarism detection using sentence similarity

The paper describes an approach to plagiarism detection within Plag-EvalRus-2017 competition. Our system leverages deep parsing techniques to be able to detect moderately disguised plagiarism. We participated in the two tracks of the competition: source retrieval (sources detection) and text alignment (paraphrased plagiarism detection). There are various cases of plagiarism presented in datasets of both tracks. They vary by the level of disguise that was used while reusing text. The results show that our method performed quite well for detecting moderately disguised forms of plagiarism

The ParaPlag: Russian dataset for paraphrased plagiarism detection

The paper presents the ParaPlag: a large text dataset in Russian to evaluate and compare quality metrics of different plagiarism detection approaches that deal with big data. The competition PlagEvalRus-2017 aimed to evaluate plagiarism detection methods uses the ParaPlag as a main dataset for source retrieval and text alignment tasks. The ParaPlag is open and available on the Web. We propose a guide for writers who want to contribute to the ParaPlag and extend it. The analysis of text rewrite techniques used by unscrupulous authors is also presented in our research

The ParaPlag: Russian dataset for paraphrased plagiarism detection

The paper presents the ParaPlag: a large text dataset in Russian to evaluate and compare quality metrics of different plagiarism detection approaches that deal with big data. The competition PlagEvalRus-2017 aimed to evaluate plagiarism detection methods uses the ParaPlag as a main dataset for source retrieval and text alignment tasks. The ParaPlag is open and available on the Web. We propose a guide for writers who want to contribute to the ParaPlag and extend it. The analysis of text rewrite techniques used by unscrupulous authors is also presented in our research

Сравнение производительности серверных платформ в задачах поиска и анализа текстов

The paper suggests a methodology for comparing the performance of server platforms. Hardware configuration, test cases and data sets are described. We present a performance comparison on two modern server platforms (IBM Power8 and Intel Xeon). Experiments demonstrate the advantage of Power8 over Intel Xeon in testing tasks, especially on the plagiarism detection.Предложена методика сравнения производительности серверных платформ. Описаны конфигурация оборудования, особенности тестовых задач и используемые наборы данных. Сравнение производительности выполнено на двух современных серверных платформах с процессорами IBM Power8 и Intel Xeon. Эксперименты показали преимущество Power8 над Intel Xeon при решении тестовых задач, особенно на функции поиска текстовых заимствований

Сравнение производительности серверных платформ в задачах поиска и анализа текстов

The paper suggests a methodology for comparing the performance of server platforms. Hardware configuration, test cases and data sets are described. We present a performance comparison on two modern server platforms (IBM Power8 and Intel Xeon). Experiments demonstrate the advantage of Power8 over Intel Xeon in testing tasks, especially on the plagiarism detection.Предложена методика сравнения производительности серверных платформ. Описаны конфигурация оборудования, особенности тестовых задач и используемые наборы данных. Сравнение производительности выполнено на двух современных серверных платформах с процессорами IBM Power8 и Intel Xeon. Эксперименты показали преимущество Power8 над Intel Xeon при решении тестовых задач, особенно на функции поиска текстовых заимствований