1,720,952 research outputs found
Solutions for implementation of multiservice Internet television infrastructure
No full textŠis darbs ir veltīts daudzpakalpojumu Interneta televīzijas infrastruktūras izveides risinājumiem. Darbā apskatīti populārākie Interneta televīzijas pakalpojumi un definētas prasības, kādas nepieciešamas liela mēroga Interneta televīzijas infrastruktūras izveidei, kā arī apskatīti iespējamie risinājumi, ar kuru palīdzību būtu iespējams šādu infrastruktūru izveidot.
Darba mērķis ir izpētīt mūsdienās pieejamos Interneta televīzijas pakalpojumus, veikt veidojamās infrastruktūras prasību analīzi un izveidot infrastruktūras konceptuālo modeli, kurš atbilstu izvirzītajām prasībām, atbilstību pamatojot.
Darba laikā autors ir veicis Interneta televīzijas pakalpojumu analīzi, definējis un pamatojis prasības veidojamajai infrastruktūrai, kā arī izveidojis topošās infrastruktūras konceptuālo modeli un pamatojis tā atbilstību definētajām prasībām.This work is devoted to solutions for creating multiservice Internet television infrastructure. Evaluation of most popular Internet television services is performed and requirements of large scale Internet television infrastructure are defined. Also basic analysis of possible solutions satisfying these requirements is conducted.
The purpose of this work is to evaluate available services and perform requirement analysis for the currently developed infrastructure, as well as to create a conceptual model of this infrastructure that meets the necessary requirements.
During this work the author has conducted analysis of Internet television services, defined and justified necessary requirements of currently developed infrastructure and also created a conceptual model of an infrastructure that meets these defined requirements
Transmission of short messages using dynamic ad-hoc WiFi networks
No full textBezvadu un mobilie datu pārraides tīkli nav pieejami visur. Šādos apvidos ir vairāki svarīgi scenāriji, kuros vērtīga būtu iespēja pārraidīt īsus ziņojumus starp vairākiem dalībniekiem. Darba mērķis ir izveidot šādu ziņojumu pārraides risinājumu.
Darbā autors apraksta prototipa risinājuma izstrādi īsu ziņojumu apraidei starp mobilajām ierīcēm, izmantojot dinamiskus 802.11b/g bezvadu tīklus Ad-Hoc režīmā, kā arī autora izstrādātu UDP bāzētu ziņojumu apraides protokolu ALAN. Darbā demonstrēta prototipa risinājuma veiksmīga darbība gan uz klēpjdatoriem, gan Nokia N900 viedtelefona. Katrs dinamiskā Ad-Hoc bezvadu tīkla dalībnieks spēj saņemt pārējo dalībnieku teksta ziņojumus un atrašanās pozīcijas koordinātes no dalībniekiem ar GPS uztvērējiem. Izstrādātais protokols ir paplašināms, lai nākotnē spētu atbalstīt jaunus ziņojumu tipus.Wireless and mobile data networks are not omnipresent. In such uncovered areas there are several key use cases, where ability to exchange short messages between multiple participants would be valuable. The purpose of this work is to present such a solution for message exchange.
The author designs and presents a solution for short message exchange between mobile devices using dynamic 802.11b/g wireless networks in Ad-Hoc mode as well as UDP based message dissemination protocol ALAN. Successful operation of prototype solution is further demonstrated both on laptops as well as Nokia N900 smartphone. Each participant in dynamic Ad-Hoc network is able to receive text messages and GPS location data from other participants, assuming they have GPS receivers. The protocol is further expandable to support new message types in the future
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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