scholarly journals APPLICATION OF CLASSIFICATION TECHNIQUES IN THE ANALYSIS OF EXTERNAL CHARACTERISTICS OF EGGS

2019 ◽  
Vol 7 (4) ◽  
pp. 266-287
Author(s):  
Mariya Georgieva-Nikolova ◽  
Zlatin Zlatev

In this article a comparative analysis is made to determine the influence of vectors of selected features derived from geometric, optical and dielectric characteristics of eggs on the accuracy of classification, depending on their weight. Suitable for classification are the principal components and latent variables that reduce feature vectors containing shape indices (D, A, V), spectral indices (TVI, GLI), dielectric characteristics (C, k), selected by four methods (CORR, SFCPP, RELIEFF, FSRNCA). By comparative studies it is found that the use of classification methods (DT, DA, SVM) are more effective in predicting weight of hen eggs than in quail eggs. The proposed egg analysis methods take precedence over the known solutions in this field as it takes into account changes in the internal properties of quail and hen eggs when stored.

2021 ◽  
Vol 13 (10) ◽  
pp. 1966
Author(s):  
Christopher W Smith ◽  
Santosh K Panda ◽  
Uma S Bhatt ◽  
Franz J Meyer ◽  
Anushree Badola ◽  
...  

In recent years, there have been rapid improvements in both remote sensing methods and satellite image availability that have the potential to massively improve burn severity assessments of the Alaskan boreal forest. In this study, we utilized recent pre- and post-fire Sentinel-2 satellite imagery of the 2019 Nugget Creek and Shovel Creek burn scars located in Interior Alaska to both assess burn severity across the burn scars and test the effectiveness of several remote sensing methods for generating accurate map products: Normalized Difference Vegetation Index (NDVI), Normalized Burn Ratio (NBR), and Random Forest (RF) and Support Vector Machine (SVM) supervised classification. We used 52 Composite Burn Index (CBI) plots from the Shovel Creek burn scar and 28 from the Nugget Creek burn scar for training classifiers and product validation. For the Shovel Creek burn scar, the RF and SVM machine learning (ML) classification methods outperformed the traditional spectral indices that use linear regression to separate burn severity classes (RF and SVM accuracy, 83.33%, versus NBR accuracy, 73.08%). However, for the Nugget Creek burn scar, the NDVI product (accuracy: 96%) outperformed the other indices and ML classifiers. In this study, we demonstrated that when sufficient ground truth data is available, the ML classifiers can be very effective for reliable mapping of burn severity in the Alaskan boreal forest. Since the performance of ML classifiers are dependent on the quantity of ground truth data, when sufficient ground truth data is available, the ML classification methods would be better at assessing burn severity, whereas with limited ground truth data the traditional spectral indices would be better suited. We also looked at the relationship between burn severity, fuel type, and topography (aspect and slope) and found that the relationship is site-dependent.


2021 ◽  
Vol 6 (2) ◽  
pp. 74-82
Author(s):  
Anastasia Valerievna Sebeleva

This article proceeds from the fact that the problem of interaction and mutual influence is quite acute in literary studies. In this regard, the relevance of the research is due, firstly, to the correspondence to the priority direction of modern literary studies associated with the comparative analysis of the text, and secondly, to the need to disclose the deep theoretical and artistic content of creative communication of such artistic personalities of the XX century as M. Tsvetaeva and B. Pasternak, whose legacy still contains many lacunae. The methodological basis of the research is an integrated approach, including comparative-historical, historical-literary, comparative-typological, system-analytical and biographical methods, as well as the method of comparative studies, which allows to study literary analogies and connections of different national literatures, their refraction in the texts of the authors studied. Hermeneutics contributed to the mental comprehension of the analyzed texts, the mental processing of textual information. An important episode in the history of world poetry was the correspondence-dialogue of iconic poets for their time: M. Tsvetaeva and B. Pasternak. Correspondence is valuable not only because it shows us the life of poets in relation to time. The creative aspect of correspondence is very important. The rapprochement manifested in it and at the same time the repulsion was deeply creative and left deep traces in the legacy of all its participants. Poets, albeit to varying degrees, concentrated and passionately, sought to define for themselves the essence of life and poetry. In the course of the research, the author of the article comes to the conclusion that, firstly, the literary process is characterized by a systematic nature in which authors and their works are in certain relationships to each other. Secondly, the thirteen-year correspondence of M. Tsvetaeva with B. Pasternak was very significant for literature. Thanks to mutual communication, creative interaction, the poets created unique, emotionally deep works.


1970 ◽  
Vol 23 ◽  
pp. 53-72
Author(s):  
Leszae Misiarczyk

This paper concerns the comparison of three twelfth-century biblical manuscripts from Plock, namely the so-called The Bible of Plock and The Evangeliary of Princess Anastasia with two Mosan biblical manuscripts: The Evangeliary of Averbode and the Biblia Universa transcribed in the same period. The first three texts: Beatissimo Papae Damaso (Novum opus), Prologus quatuor evangeliorum (Plures fuisse) and Iheronimus Damaso Pape (Sciendum etiam) – the last one is not included in the Bible of Plock - and Evangeliary of Princess Anastasia are of St. Jerome. In contrast, the introductions to the Synoptic Gospels: Argumentum secundum Matheum, Prologus in Marco and Prologus sancti Evangelii secundum Lucam are not the texts of St. Jerome, as is sometimes mistakenly repeated by different scholars, but were written by Sedulius Scottus, an Irish monk and a poet who lived and worked in a school in Leodium in the ninth century, whereas the introduction to the Gospel according to St. John: Prephatio in Evangelium secundum Iohannem was written by Bede the Venerable. While the texts of Jerome were quite commonly used in medieval biblical manuscripts, the fact that the introductions to the Synoptic Gospels are written by Sedulius Scottus and are present in both The Bible of Plock as well as partially in The Evangeliary of Princess Anastasia is a very strong argument for the Mosan origin of the twelfth century biblical manuscripts of Płock. The comparative analysis of the texts themselves clearly leads to several important conclusions. First, the Bible of Plock and Evangeliary of Princess Anastasia are closer to the version of the text preserved in the Biblia Universa, a codex written in the monastery of Sancti Trudonis, than to the Evangeliary of Averbode. It follows that the sources for the biblical manuscripts of Plock from the twelfth century should be searched at Mosan Benedictine monasteries, perhaps in the very monastery Sancti Trudonis near Liège. Second, the Gospel according to St. Mark generally follows the version of the text preserved in the Biblia Universa and the Bible of Plock but not all the time. It should therefore be hoped that the further comparative studies, especially of the version of the biblical text, will confirm this relationship and will help to determine whether the codex was written in the Meuse River region or is it a copy of the Bible of Plock made on the spot. Thirdly, and this is an extremely interesting proposal, the Evangeliary of Princess Anastasia, not counting minor changes made by a copyist like converting - tium to - cium, is very much dependent on the Bible of Plock. If, as it is confirmed by records of the miracles, the Bible was already in Plock in 1148 or before that date, it is very likely that the Evangeliary of Princess Anastasia, would be a copy of the text made on the spot in a local Plock scriptorium as a foundation of Boleslaw Kedzierzawy and a votive offering for the salvation of his deceased wife Anastasia. The codex would therefore arise after her death, dating back to the year 1158 in Plock in the time of Bishop Werner and would not have been brought by him following his trip to Aachen. These conclusions, for obvious reasons, are only preliminary, as comparison of the texts is not fully detailed and more comprehensive conclusions will be presented only after benchmarking a version of the biblical text of the four Gospels.  


2019 ◽  
Vol 7 (3) ◽  
pp. 184-205
Author(s):  
Snejana Dineva ◽  
Zlatin Zlatev

In this paper, an analysis of the potential use of the surface and geometric characteristics of mulberry leaves as parameters for environmental quality assessment is made. Methods have been used to reduce the amount of data of latent variables, linear and kernel variants of principal components. It has been found that a kernel variant of the principal components, combined with nonlinear separating functions of discriminant analysis and a method of support vector machines, are an appropriate methods for distinguishing the degree of air pollution from the mulberry leaf data. The results obtained could be used as preliminary baseline data for future evaluations and studies related to remote monitoring of urban air quality.


2019 ◽  
Vol 8 (4) ◽  
pp. 692-706
Author(s):  
Nathalie Giger ◽  
Gijs Schumacher

AbstractIn this study we focus on party organizational characteristics as key determinants of party congruence. We examine how the horizontal and vertical integration of parties is linked to representation in comparative perspective. We further focus on how congruence is achieved by detailing our expectation regarding effects on the uncertainty versus bias in the estimates of party constituents' opinion. Exploiting a comparative database on political parties and data from Comparative Studies of Electoral Systems, we show that having a complex organizational structure and being leadership dominated makes parties less representative of their constituencies. These findings carry important implications for the study of political representation but also for the literature on political parties in crisis.


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