1,720,954 research outputs found
Identification of significant business cycle indicators using query logs of search engine
No full text景氣循環以及未來經濟趨勢一直以來都是各國政府以及學者所關心的議題，透過景氣循環的分析，可以了解一個國家目前的經濟狀況以及未來的經濟發展趨勢。國家的經濟發展與景氣循環息息相關，許多的研究都致力於景氣循環的分析以及預測，景氣的現況對於政府以及投資人是相當重要的資訊。傳統上，許多用來觀測景氣的指標都會使用經濟變數來編制，由於這些經濟變數來自於不同的政府部門，往往需要許多資料收集以及資料統計的時間，這些時間會造成指標發佈的延遲，對政府與投資人而言，這些指標發佈的延遲會增加決策上的不確定性。為了要解決這個問題，我們想要使用搜尋記錄(Query Log) 來作為景氣的指標。搜尋記錄具有即時性，幾乎不需要任何的資料統計以及資料蒐集的時間，如此便可以減少景氣指標資訊發布的延遲，進而減少決策上的不確定性。在過去，網路公司並不提供搜尋記錄的資料，一般人無法得到搜尋記錄的資料。在2008年，Google推出服務 - Google Insights for Search，讓一般的使用者也可以使用搜尋記錄的資料。透過這些資料，我們觀察到使用者的確在不同的狀況下會有不同的搜尋行為。我們試著找出搜尋趨勢跟景氣循環走勢具有相關性的搜尋關鍵字。並且利用這些關鍵字的搜尋記錄來當作景氣指標。我們將提出尋找可以當作景氣指標的關鍵字的方法，並且建立一個簡單的模型，驗證這些關鍵字辨認目前景氣狀況以及預測未來景氣狀況的能力。Identifying status of business cycles is critical to governments and enterprises when building business strategies. Traditionally, economic variables, such as industrial production, stock price index, manufacturing sales, are selected to compose business cycle indicators, which altogether evaluate business cycle status. In general, the release of economic variables involves long data processes that delay the announcement of business status. The announced business status thus is not timely and could increase the uncertainty of business decision making. In this work, we employ query logs of search engines for business cycle identification. As query logs are readily available through online Web services, they can provide timely and accurate information about business status. We propose a feature selection method to identify query terms appropriate for business cycle identification. Evaluation results show that the identified query terms are effective indicators and the proposed method models business cycles correctly
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Full text linkWe 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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