1,720,955 research outputs found

    Prediksi Harga Kontrak Opsi Asia dalam Pergangan Pasar Saham PT. Telkom Indonesia dengan Menggunakan Metode Monte Carlo

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    Opsi adalah suatu kontrak yang memberikan hak (bukan kewajiban) kepada pemegang kontrak (option buyer) untuk membeli atau menjual suatu aset tertentu suatu perusahaan kepada penulis opsi (option writer). Apabila pada saat jatuh tempo (expiration date) pemegang opsi tidak menggunakan haknya, maka hak tersebut akan hilang dengan sendirinya. Dengan demikian opsi yang dimiliki tidak akan mempunyai nilai lagi. Monte Carlo adalah suatu metode yang menghendaki model simulasi yang mengikutsertakan bilangan acak dan sampel yang berbasis pada komputer. Prosedur simulasi melibatkan pembangkit bilangan acak dengan memberikan kepadatan probabilitas dan menggunakan hukum bilangan besar untuk mendapatkan rata-rata dari nilainya sebagai penaksir dari nilai harapan variabel acak. Penelitian ini bertujuan untuk memprediksi harga opsi saham pada periode kedepannya dan sebagai bahan pertimbangan bagi pelaku perdagangan saham untuk mengambul keputusan untuk menjual atau membali opsi suatu saham dengan menggunakan software Matlab. Jenis penelitian yang digunakan adalah penelitian terapan menggunakan metode Monte Carlo untuk mensimulasikan data saham. Hasil menunjukkan bahwa semakin banyak iterasi yang dilakukan maka nilai prediksi juga semakin baik dan konvergen ke suatu nilai. Nilai prediksi stabil pada iterasi ke-60000 dengan nilai error dari MAPE kurang dari 20% sehingga nilai prediksi dapat dikatakan baik. Kata Kunci: Opsi Asia, Monte Carlo, Black-Scholes, Matlab, MAPE. Abstract: Option is a contract that gives rights (not obligations) to the contract holder (option buyer) t

    Prediksi Harga Kontrak Opsi Asia dalam Perdagangan Pasar Saham dengan Menggunakan Metode Monte Carlo

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    Abstrak: Opsi adalah suatu kontrak yang memberikan hak (bukan kewajiban) kepada pemegang kontrak (option buyer) untuk membeli atau menjual suatu aset tertentu suatu perusahaan kepada penulis opsi (option writer). Apabila pada saat jatuh tempo (expiration date) pemegang opsi tidak menggunakan haknya, maka hak tersebut akan hilang dengan sendirinya. Dengan demikian opsi yang dimiliki tidak akan mempunyai nilai lagi. Monte Carlo adalah suatu metode yang menghendaki model simulasi yang mengikutsertakan bilangan acak dan sampel yang berbasis pada komputer. Prosedur simulasi melibatkan pembangkit bilangan acak dengan memberikan kepadatan probabilitas dan menggunakan hukum bilangan besar untuk mendapatkan rata-rata dari nilainya sebagai penaksir dari nilai harapan variabel acak. Penelitian ini bertujuan untuk memprediksi harga opsi saham pada periode kedepannya dan sebagai bahan pertimbangan bagi pelaku perdagangan saham untuk mengambul keputusan untuk menjual atau membali opsi suatu saham dengan menggunakan software Matlab. Jenis penelitian yang digunakan adalah penelitian terapan menggunakan metode Monte Carlo untuk mensimulasikan data saham. Hasil menunjukkan bahwa semakin banyak iterasi yang dilakukan maka nilai prediksi juga semakin baik dan konvergen ke suatu nilai. Nilai prediksi stabil pada iterasi ke-60000 dengan nilai error dari MAPE kurang dari 20% sehingga nilai prediksi dapat dikatakan baik.Kata Kunci: Opsi Asia, Monte Carlo, Black-Scholes, Matlab, MAPE.Abstract: Option is a contract that gives rights (not obligations) to the contract holder (option buyer) to buy or sell a certain asset of a company to the option writer (option writer). Monte Carlo is a method that requires a simulation model that includes random numbers and samples based on computers. The simulation procedure involves generating random numbers by providing a probability density and using the law of large numbers to get the average of its values as an estimator of the expected value of the random variable. This study aims to predict stock option prices in the future and as a material consideration for stock trading players to make a decision to sell or buy options for a stock using Matlab software. The type of research used is applied research using the Monte Carlo method to simulate stock data. The results show that the more iterations are carried out, the predictive value is also getting better and converging to a value. The predictive value is stable at the 60000th iteration with an error value of MAPE of less than 20% so that the predicted value can be said to be good.Keywords: Asia Option, Monte Carlo, Black-Scholes, Matlab, MAPE

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

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    We 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

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    We 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

    Author Index

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    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    We 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
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