A Multi-Pass Algorithm for Adjusting a Network Topology in Multipoint Communications

Author(s):  
Boris Peltsverger ◽  
Svetlana Peltsverger ◽  
Michael Bartolacci

Multimedia traffic on the Internet has grown dramatically in the past few years. Web sites, such as YouTube and Hulu, offer entertainment and educational multimedia content that previously was only available through broadcast or cable television and on storage media, such as CD-ROMs and videotapes. Latency is a key issue in the delivery of online content, especially with respect to multicasting. The authors’ proposed approach seeks to reduce overall latency for multicast streams.

Author(s):  
Boris Peltsverger ◽  
Svetlana Peltsverger ◽  
Michael Bartolacci

Multimedia traffic on the Internet has grown dramatically in the past few years. Web sites, such as YouTube and Hulu, offer entertainment and educational multimedia content that previously was only available through broadcast or cable television and on storage media, such as CD-ROMs and videotapes. Latency is a key issue in the delivery of online content, especially with respect to multicasting. The authors’ proposed approach seeks to reduce overall latency for multicast streams.


Sensors ◽  
2021 ◽  
Vol 21 (15) ◽  
pp. 4975
Author(s):  
Dan Komosny

The paper deals with the locations of IP addresses that were used in the past. This retrospective geolocation suffers from continuous changes in the Internet space and a limited availability of past IP location databases. I analyse the retrospective geolocation of IPv4 and IPv6 addresses over five years. An approach is also introduced to handle missing past IP geolocation databases. The results show that it is safe to retrospectively locate IP addresses by a couple of years, but there are differences between IPv4 and IPv6. The described parametric model of location lifetime allows us to estimate the time when the address location changed in the past. The retrospective geolocation of IP addresses has a broad range of applications, including social studies, system analyses, and security investigations. Two longitudinal use cases with the applied results are discussed. The first deals with geotargeted online content. The second deals with identity theft prevention in e-commerce.


2014 ◽  
Vol 115 (7/8) ◽  
pp. 376-393 ◽  
Author(s):  
Jackie Young

Purpose – This paper aims to observe, measure and record comparative cognitive processes in print and online to explain the differences, if any, in the readers’ information-gathering processes and their subsequent comprehension and retention of information. It also examined the strategies that readers adopt that differ from print when reading online. Standardized reading comprehension scores were also collected. The results indicated that the participants demonstrated functional equivalency in both media, but they had a preference for print. The linear individualistic mentality learned through print gave the study group participants the skills to successfully navigate through the dense web of information that constitutes the Internet. Story presentation and hierarchy, key elements of the print design process, are less evident or absent online. As a consequence, as previous research has demonstrated, online readers are more poorly informed than print readers – but not in this case. The research from this study demonstrates that when the authors of the print media are those who also control the integrity of online content, print and Web readers are equally well-informed. Design/methodology/approach – Coded texts from The Guardian Newspaper, The Economist and The New Yorker were used in a media lab to measure the study group’s ability to read and retrieve information from the publications’ print and Web editions. They were scored on how well they retrieved the core information in the articles from both media. Focus-group sessions probed for information about reading in print and online at the end of the reading sessions. This gave valuable insight into the coping strategies that the participants used when engaging with online texts. There were two sessions, each of three hours, and the participants were university students. Findings – The study results show that the group participants were functionally equivalent in both print and online reading. However, they had a profound distrust for online content in general, which they found to be inaccurate and unstable. Web sites, they conclude, never achieve “fixity”. When reading online, the study group scrolls through the text to retrieve facts and then goes to a print source to verify the accuracy of the content. They do not engage with the content online as they do with print. While acknowledging that the publications in the study were reputable and of a high quality, the group still found scrolling through the Web sites tedious. The printed page was to the study group, a cultural object. Research limitations/implications – This was a small study with 11 participants in a controlled environment on two evenings, each lasting three hours. While the readings were intense, the researchers saw no evidence of fatigue. The group were very vocal during the focus-group sessions and gave valuable insights into the reading process. The stories were exactly the same in both media, were well-written and edited. Typographic cues that give the reader priorities when engaging with the texts were transferred from the print to the online editions. HTML texts to this group are an impediment to the reading process, and the amount of texts require too much time to read. A larger study with a more diverse readership reading more general news is required to verify the findings. This is being planned. As one from the study group stated “I grew up with print but younger people do not have the benefits of print”. Practical implications – Typography provides a language with visual form and through that form, conveys the meaning of a text. The print reader decodes what she reads on the printed page, allowing her to quickly absorb and parse large amount of text, discarding redundant content. The question now becomes which print-reading operations are being transferred to the process of extracting relevant facts. Five centuries of continuous improvement of print communications have yet to be successfully transferred to the Internet. The visual aspects of print, the color advertisement, the photograph and elements that aided the print reader’s navigation are an intrusion on the Web. A new form of navigation, one that is more elegant and intuitive than the present, is required. Social implications – The social implications of reading are a fundamental characteristic of any society. The codex provided the model for the book, the newspaper and the magazine. These became and still are trusted sources of information. When the study group gets a Twitter or Facebook prompt on a breaking news story, they check a trusted broadcasting source for confirmation of its accuracy. If the findings of this study are confirmed in subsequent research studies on the process of reading online, it will have profound implications for the industry. Publishing to be successful requires the reader to engage with and respond to a message. There is strong evidence that this is not the case with what the advertising industry would consider an important core audience, the Internet “reader”. Originality/value – As a newspaper and magazine designer and teacher, the author been increasingly concerned with the transfer of information from the printed page to the computer screen. Many studies have been conducted on aspects of reading and designing for online reading. They are very often inaccurate and as such inconclusive. Reading is complex and measuring it difficult. The author conducted this study as both a designer and from an academic perspective. It is hoped that it encourages a robust debate.


2007 ◽  
Vol 3 (3) ◽  
Author(s):  
Victor M Gonzalez ◽  
Luis A Castro-Quiroa

Migration has gained considerable attention in the past few years all over the world. The migratory phenomenon has already affected many countries and is likely to deeply reshape forever their societies and regulations. Of particular interest is the migratory flow from Mexico to the USA, which is identified as one of the most important labor related worldwide. It has been found that migration can potentially have a major impact on individuals leaving home as they can experience nostalgic feelings. As a result of physical distance, family members look for closeness to prevail by maintaining in permanent communication. This paper offers an analysis of web sites from Mexican diasporic communities living in the US, aiming to reveal the level of presence of those communities on the Internet as well as to characterize the support they provide for living-away members of the communities.


First Monday ◽  
2006 ◽  
Author(s):  
Fred Schiff

This paper is included in the First Monday Special Issue: Commercial Applications of the Internet, published in July 2006. For author reflections on this paper, visit the Special Issue. The examination here yields eight business models that describe more or less comprehensively the commercial approaches to online news. Using the models, I review the secondary literature to see what has worked, what trends have emerged, and what the experts expect. Approximately 300 articles were reviewed, based on a search of those stories that appeared in the business and trade press in hardcopy and online in the past five years. Surprisingly, a consensus opinion exists among experts who predict that the interactive model offers the most promise of eventually capturing the majority of online news consumers. My intent is to develop the models to facilitate further empirical study of which news websites are most likely to survive and succeed in the dot-com shakeout beyond spring 2000.


Resonance ◽  
2020 ◽  
Vol 1 (2) ◽  
pp. 191-210
Author(s):  
Joshua Hudelson

Over the past decade, ASMR (Autonomous Sensory Meridian Response) has emerged from whisper-quiet corners of the Internet to become a bullhorn of speculation on the human sensorium. Many consider its sonically induced “tingling” to be an entirely novel, and potentially revolutionary, form of human corporeality—one surprisingly effective in combating the maladies of a digitally networked life: insomnia, anxiety, panic attacks, and depression. Complicating these claims, this article argues that ASMR is also neoliberal repackaging of what Marx called the reproduction of labor power. Units of these restorative “tingles” are exchanged for micro-units of attention, which YouTube converts to actual currency based on per-1,000-view equations. True to the claims of Silvia Federici and Leopoldina Fortunati, this reproductive labor remains largely the domain of women. From sweet-voiced receptionists to fawning sales clerks (both of whom are regularly role-played by ASMRtists), sonic labor has long been a force in greasing the gears of capital. That it plays a role in production is a matter that ASMRtists are often at pains to obscure. The second half of this article performs a close reading of what might be considered the very first ASMR film: Chantal Akerman’s Jeanne Dielman, 23 quai du Commerce, 1080 Bruxelles. Through this film, the exploitative dimensions of ASMR can be contrasted with its potential for creating protected spaces of financial independence and nonnormative corporeal practices.


Author(s):  
Lindsey C Bohl

This paper examines a few of the numerous factors that may have led to increased youth turnout in 2008 Election. First, theories of voter behavior and turnout are related to courting the youth vote. Several variables that are perceived to affect youth turnout such as party polarization, perceived candidate difference, voter registration, effective campaigning and mobilization, and use of the Internet, are examined. Over the past 40 years, presidential elections have failed to engage the majority of young citizens (ages 18-29) to the point that they became inclined to participate. This trend began to reverse starting in 2000 Election and the youth turnout reached its peak in 2008. While both short and long-term factors played a significant role in recent elections, high turnout among youth voters in 2008 can be largely attributed to the Obama candidacy and campaign, which mobilized young citizens in unprecedented ways.


2019 ◽  
Author(s):  
Abhishek Verma ◽  
Virender Ranga

<div>We have thoroughly studied the paper of Perazzo et al., which presents a routing attack named DIO suppression attack with its impact analysis. However, the considered simulation grid of size 20mx20m does not correspond to the results presented in their paper. We believe that the incorrect simulation detail needs to be rectified further for the scientific correctness of the results. In this comment, it is shown that the suppression attack on such small sized network topology does not have any major impact on routing performance, and specific reason is discussed for such behavior.</div>


2021 ◽  
pp. 1-11
Author(s):  
P. N. R. L. Chandra Sekhar Author ◽  
T. N. Shankar Author

In the era of digital technology, it becomes easy to share photographs and videos using smartphones and social networking sites to their loved ones. On the other hand, many photo editing tools evolved to make it effortless to alter multimedia content. It makes people accustomed to modifying their photographs or videos either for fun or extracting attention from others. This altering brings a questionable validity and integrity to the kind of multimedia content shared over the internet when used as evidence in Journalism and Court of Law. In multimedia forensics, intense research work is underway over the past two decades to bring trustworthiness to the multimedia content. This paper proposes an efficient way of identifying the manipulated region based on Noise Level inconsistencies of spliced mage. The spliced image segmented into irregular objects and extracts the noise features in both pixel and residual domains. The manipulated region is then exposed based on the cosine similarity of noise levels among pairs of individual objects. The experimental results reveal the effectiveness of the proposed method over other state-of-art methods.


2021 ◽  
Vol 155 ◽  
pp. 107174 ◽  
Author(s):  
Jianxin Wang ◽  
Ming K. Lim ◽  
Chao Wang ◽  
Ming-Lang Tseng

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