1,721,403 research outputs found
Penyelesaian Kasus SPOJ 18438 (VAL_GAM4) Menggunakan Mathematical Expectation
No full textUnsur kemungkinan merupakan bagian tak terpisahkan dari kehidupan sehari-hari. Banyak keputusan, baik yang disadari maupun tidak, dipengaruhi oleh elemen acak dan ekspektasi terhadap hasil. Hal ini juga tercermin dalam studi kasus SPOJ 18438 - VAL_GAM4, di mana elemen-elemen seperti probabilitas kemenangan, kekalahan berulang, dan ekspektasi memainkan peran penting dalam menentukan strategi serta akhir dari permainan. Permasalahan utama dalam studi kasus pada tugas akhir ini adalah bagaimana menghitung waktu rata-rata yang dibutuhkan pemain untuk mencapai tujuan akhir, dengan mempertimbangkan probabilitas menang atau kalah dari berbagai kejadian acak yang mungkin terjadi. Oleh karena itu, tugas akhir ini berfokus pada penerapan model pengambilan keputusan berbasis ekspektasi matematis untuk menentukan rata-rata waktu penyelesaian secara optimal pada berbagai skenario probabilistik. Ekspektasi waktu dihitung berdasarkan probabilitas transisi antar keadaan dalam permainan, yang memungkinkan proses perhitungan dilakukan secara efisien dan sistematis. Algoritma yang dirancang mampu menyelesaikan permasalahan dengan waktu eksekusi minimum sebesar 0,1 detik dan rata-rata 0,11 detik, serta dengan penggunaan memori yang konstan sebesar 5,2 MB.
Hasil ini menunjukkan bahwa pendekatan berbasis ekspektasi matematis tidak hanya efektif dan efisien, tetapi juga tepat sasaran dalam menyelesaikan permasalahan kompleks berbasis probabilitas, sebagaimana ditunjukkan pada studi kasus SPOJ 18438 - VAL_GAM4. Dengan demikian, tugas akhir ini memberikan kontribusi nyata dalam pengembangan strategi pengambilan keputusan optimal pada sistem yang mengandung ketidakpastian.
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Probability is an inseparable part of everyday life. Many decisions, both conscious and unconscious, are influenced by random elements and expectations of outcomes. This reality is also reflected in the case study SPOJ 18438 - VAL_GAM4, where randomness, such as win probabilities, repeated losses, and expected values, plays a critical role in determining strategies and final outcomes in the game.
The central problem addressed in this thesis is how to accurately compute the average time required for a player to reach the game's objective, while accounting for the probabilistic nature of wins, losses, and other random events. Therefore, this thesis focuses on applying a decisionmaking model based on mathematical expectation to determine the optimal completion time under various probabilistic scenarios. The expected time is calculated using state-transition probabilities, enabling efficient and systematic calculation of average durations. The designed
algorithm successfully solves the problem with a minimum execution time of 0.1 seconds and an average execution time of 0.11 seconds, while maintaining constant memory usage of only
5.2 MB.
These results demonstrate that the mathematical expectation-based algorithm is both accurate and efficient in addressing the probabilistic challenges of the SPOJ 18438 - VAL_GAM4 case study. As such, this thesis provides a concrete contribution to the development of optimal decision-making strategies in systems involving probabilit
A search for exoplanets around north circumpolar stars. VII. Detection of planetary companion orbiting the largest host star HD 18438
Get PDFWe have been conducting a exoplanet search survey using Bohyunsan Observatory
Echelle Spectrograph (BOES) for the last 18 years. We present the detection of
exoplanet candidate in orbit around HD 18438 from high-precision radial
velocity (RV) mesurements. The target was already reported in 2018 (Bang et al.
2018). They conclude that the RV variations with a period of 719 days are
likely to be caused by the pulsations because the Lomb-Scargle periodogram of
HIPPARCOS photometric and Ha EW variations for HD 18438 show peaks with periods
close to that of RV variations and there were no correlations between bisectors
and RV measurements. However, the data were not sufficient to reach a firm
conclusion. We obtained more RV data for four years. The longer time baseline
yields a more accurate determination with a revised period of 803 +/- 5 days
and the planetary origin of RV variations with a minimum planetary companion
mass of 21 +/- 1 MJup. Our current estimate of the stellar parameters for HD
18438 makes it currently the largest star with a planetary companion.Comment: 6 pages, 4 figures, Accept to the Journal of the Korean Astronomical
Societ
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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