Media Cloud Research Articles

FairCMS: Cloud Media Sharing With Fair Copyright Protection

FairCMS: Cloud Media Sharing With Fair Copyright Protection

Relationship Between Short and Long Wave Radiation with Cloud Cover in Baghdad City

Short waves are waves that have a short wavelength and are characterised by high frequencies. Therefore, they propagate over short distances from the source and are used for wireless communications and radio broadcasting. As for long waves, they have a long wavelength characterised by low frequencies and usually extend far from the source easily. When the clouds prevent sunlight from reaching Earth, it reflects a large part of it and absorbs part of the radiation that passes through it, so that less radiation reaches the Earth’s surface as a result of the clouds. The daily data of the high, medium, and low cloud cover, as well as the daily and annual data of solar radiation (long and short-wave radiation) were extracted from satellite data collected by the European Center for Medium-Range Weather Forecasting (ECMWF) over the Baghdad station at 00:00 am and 12:00 pm for the period (2015-2019). The study aims to find the effect of cloud cover on long and short waves and to find the type of relationship between them. The results showed that. The High and medium clouds are more visible in winter and less in summer. The clouds of all kinds decrease at 00:00 am and can be observed at noon. The relationship between solar radiation and cloud cover is inverse. In 2015 different types of clouds appeared, including low-lying cumulus and cumulus-medium. The radiation of long waves increases in the spring and summer when the amount of solar radiation entering the atmosphere is greater, and therefore the atmosphere derives its heat from these long waves emanating from the surface of the earth, at a time when the air could not absorb the short waves that make up the sun’s rays when it penetrated it. Through the Pearson coefficient test, several results were obtained, including that the relationship between high, medium, and low cloud cover, as well as total solar radiation, showed an inverse association; the more clouds there are, the less solar radiation reaches the earth’s surface.

Utilization of Adobe Creative Cloud Media to Support Project-Based Learning for Internship Students in the Digitaliz Unit at the Hasnur Centre Foundation

Adobe Creative Cloud is a comprehensive suite of applications offering advanced tools for graphic design, video editing, animation, photography, and web development. This study aims to explore the utilization of Adobe Creative Cloud in supporting project-based learning (PjBL) at Hasnur Centre Foundation. The research method used is descriptive qualitative research, which includes observation, interviews, and documentation during the internship program held from February 28 to March 17, 2024. The internship program involved 61 students from Global Islamic Boarding School, who used various Adobe Creative Cloud applications such as Premiere Pro, After Effects, and Audition in their projects. The results showed that the use of Adobe Creative Cloud enhanced students' creativity, collaboration, and material understanding. In conclusion, Adobe Creative Cloud is effective in supporting PjBL and increasing student motivation.

A privacy-preserving image retrieval scheme with access control based on searchable encryption in media cloud

With the popularity of the media cloud computing industry, individuals and organizations outsource image computation and storage to the media cloud server to reduce the storage burden. Media images usually contain a large amount of private information. To prevent disclosure of privacy of the image owners, media images are encrypted before uploading to the server. However, this operation will greatly limit the utilization of the image for the user, such as content-based image retrieval. We propose an efficient similarity query algorithm with access control based on Bkd-tree in this paper, in which a searchable encryption scheme is designed for similarity image retrieval, and the encrypted image is used to extract image features by a pre-trained CNN model. The Bkd-tree is utilized to generate an index tree for the image features to speed up retrieval and make it faster than linear indexing. Finally, the security performances of the proposed scheme is analyzed and the performance of this scheme is evaluated by experiments. The results show that the security of the image content and image features can be ensured, and it has a shorter retrieval time and higher retrieval efficiency.

Cloud media video encoding: review and challenges

AbstractIn recent years, Internet traffic patterns have been changing. Most of the traffic demand by end users is multimedia, in particular, video streaming accounts for over 53%. This demand has led to improved network infrastructures and computing architectures to meet the challenges of delivering these multimedia services while maintaining an adequate quality of experience. Focusing on the preparation and adequacy of multimedia content for broadcasting, Cloud and Edge Computing infrastructures have been and will be crucial to offer high and ultra-high definition multimedia content in live, real-time, or video-on-demand scenarios. For these reasons, this review paper presents a detailed study of research papers related to encoding and transcoding techniques in cloud computing environments. It begins by discussing the evolution of streaming and the importance of the encoding process, with a focus on the latest streaming methods and codecs. Then, it examines the role of cloud systems in multimedia environments and provides details on the cloud infrastructure for media scenarios. After doing a systematic literature review, we have been able to find 49 valid papers that meet the requirements specified in the research questions. Each paper has been analyzed and classified according to several criteria, besides to inspect their relevance. To conclude this review, we have identified and elaborated on several challenges and open research issues associated with the development of video codecs optimized for diverse factors within both cloud and edge architectures. Additionally, we have discussed emerging challenges in designing new cloud/edge architectures aimed at more efficient delivery of media traffic. This involves investigating ways to improve the overall performance, reliability, and resource utilization of architectures that support the transmission of multimedia content over both cloud and edge computing environments ensuring a good quality of experience for the final user.

Popular media misinformation on neonatal abstinence syndrome, 2015–2021

BackgroundAs the overdose crisis unfolded, narratives mischaracterizing neonatal abstinence syndrome (NAS) as “addicted babies” with echoes to the “crack babies” panic proliferated in mainstream media. his study examines NAS misinformation dynamics and characteristics over a seven-year period. MethodsBased on a comprehensive query, Media Cloud was used to compile mainstream media content relating to NAS between 2015 and 2021. Articles were redundantly coded on key parameters such as speakers represented, publication source, and scientific accuracy. ResultsOf the 348 articles meeting search criteria, 264 (76 %) featured misinformed narratives, 70 (20 %) featured informed narratives, and 14 (4 %) featured both informed and misinformed content. Most frequent misinformation elements related to misrepresentation of babies as “addicted” at birth and exaggeration of NAS symptomatology and long-term harms. Least represented voices were people most affected, with just 11 (2 %) featuring mothers who used opioids prepartum. DiscussionSince misinformation contributes to punitive legal responses and harms patient care, efforts to prevent, monitor, and address inaccurate and stigmatizing narratives are essential to improving policy and practice.

ADVANCED SECURITY IN CLOUD COMPUTING OF MILITARY WEAPONS

Cloud storage systems are widely deployed in the world, and many people use them to download and upload their personal stuff like videos, text document, images, etc. Now a day many private firms, company’s, governments, military move their database on cloud storage. However, a significant question is, can users trust the media services provided by the media cloud service providers? Many traditional security approaches are proposed to secure the data exchange between users and the media cloud. However, the problem comes to military users if scientist develop a new weapon for military and he want to send a launching code to military admirals /chiefs through cloud, how he can trust cloud that he’s codes will be safely delivered to admirals. Now a day’s cloud storage can easily have cracked by hacker and gain information of military weapons and confidential secrets. It could be dangerous if they sold this information to terrorists or rival country, in this article, we propose to use steganography, watermarking, image encryption and visual cryptography schemes to protect military weapons data in clouds. steganography allows users to hide the weapons launch code in image captcha. Visual cryptography shares the image captcha in shares which is depend on number peoples in group in military. image encryption will apply on each share of captcha. After this watermarking is apply on each share for authentications between users and cloud. For receiving the launch code receivers have to from de-watermarking, image decryption then visual cryptography to get captcha and launch code. Our studies show that the proposed approach achieves good security performance and securing the future of country.

SimLESS: A Secure Deduplication System Over Similar Data in Cloud Media Sharing

SimLESS: A Secure Deduplication System Over Similar Data in Cloud Media Sharing

Pengaruh Awan Terhadap Visibilitas Hilal di POB Blang Tiron Bukit Pole Kompleks Perumahan PT. Perta Arun Gas Lhokseumawe

During the month of Ramadan, Shawal, zulqaidah and zulhijjah, there were no sights of hilal due to the presence of cloud-like natural factors that covered the hilal at the western horizon at the time of observation. The title of this research is The Impact of Clouds on the Visibility of Hilal in Blang Tiron Hill Pole Complex Housing PT. Perta Arun Gas Lhokseumawe with two formula problems namely: 1. How is the category and characteristics of clouds in the horizon of Blang Tyron POB. 2. The impact of the cloud on the visibility of hilal at Blang tiron. In conducting research, the author uses qualitative methods using field research. The primary data sources are observations and interviews with the relevant parties, while the secondary data is documents, books, research journals and related articles. The data collection methods used are observation methods, interviews and documentation studies. The results of this study show that clouds are the factor that covers the hilal in the POB Blang tyron at the time of observations of Ramadan, Shawal, Zulqaidah and Zulhijjah are low clouds of cumulus clouds, medium clouds altostratus, and high clouds comulunimbus and cirrus. The thick clouds that are evenly in the western part of the horizon can release light that divides the brightness of the light that covers the hill, making it difficult for the observers to observe its appearance even though the hills are above the horizont.

Police Violence in Health Care Settings in US Media Coverage

Hospitals do not collect or share data tracking their policing and security activities despite their reliance on police and security personnel, including armed officers. Thus, little is known about how hospital security is associated with patient and staff safety. To examine the harms exerted by health care-affiliated police and security personnel. For this qualitative study, data were collected using a systematic Media Cloud search for US news media coverage from January 2011 to May 2022. A total of 18 987 articles on policing and hospitals were screened and a content and thematic analysis of articles that met the search criteria was conducted, which involved incidents that revealed harm to patients, patients' families, and staff. Data were analyzed from October 2022 to April 2023. Incident year, incident location (hospital name, city, state), survivor and victim characteristics (race and ethnicity, presence of mental illness), and a narrative description of the incident focusing on outcomes of harm exerted by police and security personnel in the health care setting. A total of 48 unique stories across 25 US states were included. The median (range) year published was 2017 (2009-2022). Harms reported to have been perpetuated by health care-affiliated police and security personnel were identified within 5 domains from 48 unique incidents: (1) patients shot by police or security personnel (17 patients); (2) patients subject to excessive use of force (17 patients); (3) patients arrested (7 patients); (4) patients subject to sexual assault (2 patients); and (5) hospital personnel or those considered collateral damage shot, injured, or arrested (5 individuals). Most survivors and victims were Black, although the race and/or ethnicity of involved individuals was not routinely reported across the news stories. Mental illness was the most documented medical condition among patients injured or killed by health care-affiliated police and security personnel. This qualitative study of US news media found that police and security personnel in hospitals were reported to have perpetuated harm via excessive force, sexual assaults, injuring patients and health care workers, and fatal shootings. Compounded by a lack of transparency and accountability mechanisms, this may represent an underrecognized manifestation of structural racism at the organizational level. Policy suggestions include introducing accountability measures, deescalation techniques, and removing arms from hospital security personnel to reduce harm and fulfill health care's healing mission.

Contrasting Trends in Convective and Large‐Scale Precipitation in the Intertropical Convergence Zone From Reanalysis Data Sets

AbstractWe investigated long‐term trends in convective and large‐scale precipitation within the Intertropical Convergence Zone during the boreal summer (June–August) for the period 1980–2020 using five different reanalysis datasets. We found that there exists a large diversity in the trends. In particular, we focused on the European Center for Medium‐Range Weather Forecasts reanalysis version 5 (ERA5) and the Japanese 55‐year reanalysis (JRA55) datasets; because the convective precipitation amount statistically significantly decreases in the former, but increases in the later. In contrast, the large‐scale precipitation amount increases in both of these reanalysis datasets. We examine the physical factors leading to contrasting features in the respective trends in convective and large‐scale precipitation amount between two reanalysis datasets. A significant decrease of convective available potential energy, which is caused by enhanced atmospheric stability, leads to a decreasing trend of convective precipitation amount in the ERA5 dataset. In contrast, a significant increase of precipitable water is noted in JRA55 dataset. Additionally, the Clausius–Clapeyron relation is larger in JRA55 than ERA5, implying that the sensitivity of humidity to the temperature change is larger in JRA55 than that in ERA5 dataset. On the other hand, the increase of the large‐scale precipitation is associated with the increase of medium cloud amount in both ERA5 and JRA55 datasets.

A mixed-methods assessment of off-duty police shootings in a media-curated database.

The aim of this study was to examine rates of killings perpetrated by off-duty police and news coverage of those killings, by victim race and gender, and to qualitatively evaluate the contexts in which those killings occur. We used the Mapping Police Violence database to curate a dataset of killings perpetrated by off-duty police (2013-2021, N = 242). We obtained data from Media Cloud to assess news coverage of each off-duty police-perpetrated killing. Our study used a convergent mixed-methods design. We examined off-duty policy-perpetrated killings by victim race and gender, comparing absolute rates and rates relative to total police-perpetrated killings. We also conducted race-gender comparisons of the frequency of news media reporting of these killings, and whether reporting identified the perpetrator as an off-duty officer. We conducted thematic analysis of the narrative free-text field that accompanied quantitative data using grounded theory. Black men were the most frequent victims killed by off-duty police (39.3%) followed by white men (25.2%), Hispanic men (11.2%), white women (9.1%), men of unknown race (9.1%), and Black women (4.1%). Black women had the highest rate of off-duty/total police-perpetrated killings relative to white men (rate = 12.82%, RR = 8.32, 95% CI: 4.43-15.63). There were threefold higher odds of news reporting of a police-perpetrated killing and the off-duty status of the officer for incidents with Black and Hispanic victims. Qualitative analysis revealed that off-duty officers intervened violently within their own social networks; their presence escalated situations; they intentionally obscured information about their lethal violence; they intervened while impaired; their victims were often in crisis; and their intervention posed harm and potential secondary traumatization to witnesses. Police perpetrate lethal violence while off duty, compromising public health and safety. Additionally, off-duty police-perpetrated killings are reported differentially by the news media depending on the race of the victim.

Dealing with infodemic during COVID-19 pandemic: Role of effective health communication in facilitating outbreak response & actions – An ICMR experience

ObjectivesTo highlight and assess the impact of intervention tools used by Indian Council of Medical Research (ICMR) against COVID19 associated infodemic in the world's largest democratic country, India. Study designIt is a retrospective cross sectional study. The impact of ICMR's multi-pronged strategy to address the infodemic during pandemic has been assessed through analysis of print media reportage and social media engagements. MethodsThe impact of the interventions was assessed using cloud media mappers like MediaCloud and Meltwater using keywords. The data was analysed in terms of reportage, theme of reportage. A sub-section of media reportage (Feb 2020–June 2020) was analysed in details from 4 major dailies to understand the coverage and tonality of media reports. The data on COVID 19 related tweets, posts and uploads were taken from social media platforms of Indian Council of Medical Research (ICMR) particularly twitter, instagram, facebook and youtube and estimate of pre and post pandemic changes in followers or users were collected for analysis. The data was curated and analysed using MS excel. ResultsThere was a surge of 3800% reportage in media during pandemic as compared to same time frame in pre-pandemic times. A surge of followers on twitter from 26,823 on Feb 2020 (before pandemic) to 3,36,098 at March 2022 (after pandemic) was observed. A drastic increase in monthly followers was observed after start of Pandemic (after Feb 2020) in comparison to before pandemic (Before Feb 2020). Similar trends were observed on other social media platforms of ICMR. ConclusionsThe Communications Unit at ICMR geared up with more robust plans and designed several interventions to mitigate the infodemic which helped in evidence based decision making towards outbreak response and action. This highlights the importance of evidence based, crisp, timely and effective communication during the epidemics/pandemics to buid trust and confidence in the community.

Mandated media innovation impacts on knowledge dissemination in workplace training

ABSTRACT This conceptual paper examines voluntary versus mandatory cloud-based training, generating recommendations to harmonise the complementarity of face-to-face and online media in future careers. Technological change was already accelerating when the COVID-19 pandemic response turbocharged transformations of knowledge dissemination in training, thus impacting learning and competency development for the future. The methodology applies comprehensive, structured literature review following PRISMA guidelines with development of a novel conceptual framework illuminating facets of knowledge dissemination. Exploring the context of workplace training and the future of careers with aid of NVivo it was found that altered social cues in cloud training are generating changes in learner attention span, engagement, and peer-to-peer interaction, potentially increasing contract cheating. It is hence recommended that stakeholders demarcate theoretical and practical learning outcomes to develop hybrid cloud media and face-to-face knowledge dissemination to accentuate professional accreditation requirements, engagement and etiquette in virtual spaces, and improve understanding of work-home balance.

Temporal and spatial variation of cloud cover in arid regions of Central Asia in the last 40 years

Water resources are one of the key factors restricting the development of arid areas, and cloud water resources is an important part of water resources. The arid region of central Asia is the core region of the current national green silk road construction, and is the largest arid region in the world. Based on cloud cover data of ECMWF, the current study analyzed temporal and spatial characteristics of cloud properties in arid regions of Central Asia between 1980 and 2019. Our findings show that: (1) From the point of view of spatial distribution, total cloudiness in arid regions of Central Asia was low in the south and high in the north. The distribution of high cloud frequency and medium cloud frequency was higher in the south and lower in the north, while low cloud frequency distribution was low in the south and high in the north. (2) In terms of time, the variation of cloud cover and cloud type frequency had obvious seasonal characteristics. From winter to spring, cloud cover increased, and the change of cloud type frequency increased. From spring to summer, cloud cover continued to increase and the change of cloud type frequency increased further. Cloud cover began to decrease from summer to autumn, and the change of cloud type frequency also decreased. (3) Generally, average total cloud cover decreased in most of central Asia, and high and medium cloud cover increased while low cloud cover decreased. This study provides a reference for the rational development of cloud resources in the region.

Project Management for Cloud Compute and Storage Deployment: B2B Model

This paper explains the project’s objectives, identifies the key stakeholders, defines the project manager’s authority and provides a preliminary breakdown of roles and responsibilities. For the project’s future, it acts as a source of authority. This paper’s objective is to record the justifications for starting the project, its goals, limitations, solution instructions and the names of the principal stakeholders. This manuscript is meant to be used as a “Project Management Plan Light” for small and medium-sized projects when it would be uneconomical to prepare an entire collection of documents that make up a project management plan. A global media cloud will be provided and managed by the ABC cloud company inside of a consumer’s current premises. In this paper, the authors explain the end-to-end delivery of cloud and compute services. The article mainly focuses on the delivery of virtual machines (VMs), graphics processing unit (GPUs), cloud storage, transcoding, packaging, 24/7 customer support and billing modules for the services used by end customers. The process starts with customer requirements gathering to initiate the feasibility check for the services desired or required by the clients. Pre-sale solution engineers capture all the customer requirements in the solution design document to review with the engineering and delivery team for the implementation. Based on the solution design document, the solution engineer needs to raise the system’s feasibility for the local loops, cross connects, VMs, GPUs, storage, transcoders and packagers required to meet the end customer expectations on the service delivery. The solution engineer must sign-off on the solution design document agreed with end customer from the engineering and technical team. The program manager and technical team review the solution design document and confirm the order ID requirement in the system for the sales team to share with the order entry team to log the orders for a signed customer order form (COF). The program manager will initiate the service delivery for these order IDs logged in to the system for these services. Once services are ready for customer delivery, a technical team will share the customer portal with the end customer and provide training to the teams at the customer end use the required resources for cloud, compute and storage uses. Along with the services mentioned above, customers can access the usage and billing information in the customer portal. Moreover, the program manager is to share the project closure document, including the information about the services, reference IDs to log the trouble ticket with the supplier’s 24/7 support team and billing start date for customer acceptance.

Sistem Monitoring Kualitas Udara Dalam Ruangan: Measuring Device For Indoor Air Quality (Media-Q)

Today's air pollution is increasingly showing a very alarming condition. Sources of air pollution can come from various activities, including industry, transportation, offices, and housing. These various activities are the biggest contribution of air pollutants that are released into free air. The impact of air pollution is causing a decrease in air quality, which has a negative impact on human health. Based on it, we intend to research and create a prototype of an indoor air detector that is not only portable, but also compact, wearable (can be attached to the body/carried), applicable (easy to use), accessible, and connected to smart phones and websites. The device will monitor the indoor air quality and the results will be sent directly to the connected smart phone and will be stored in the cloud media and can also be accessed via the website. In general, this research will involve 3 connected and integrated devices, namely: air quality measurement device, application on a smart phone and a website and its storage media. This device can be used by everyone, where the data obtained by the device at a certain location, can be a contribution and useful information for others (person-to-person/P2P), and in a system, can work automatically and independently (machine-to-machine/M2M). With the above background, there is a need for a device that is not only affordable but can also be connected to a mobile phone and the internet is an urgent need. The team intends to conduct a study on the device and call it a Measuring Device for Indoor Air Quality or MEDIA-Q.

Fine vertical structures of cloud from a ground‐based cloud radar over the western Tianshan mountains

AbstractIn this study, the grounded‐based Ka‐band millimetre‐wave cloud radar (MMCR) is used to analyse the cloud characteristics over the western Tianshan mountains. The cloud top height (CTH) obtained by MMCR is verified by comparing it with the Fengyun‐4A (FY‐4A) observations. Overall, the MMCR‐obtained CTHs are attenuated and lower than the FY‐4A‐obtained CTHs under precipitation conditions. Thus, the FY‐4A data is used to complement MMCR data when there is rainfall. The diurnal, seasonal variation and vertical structures of the cloud are further examined using the combination of MMCR and FY‐4A. The result indicates that the CTH and cloud base height (CBH) are highest in summer and lowest in winter. Also, clouds tend to form frequently at night in spring, summer, and winter. Although in autumn, clouds tend to form most frequently in the morning. This may be related to the diurnal variation of temperature, humidity, wind speed, and wind direction. Moreover, the CTHs occur most frequently at heights of 8–9 km in spring and autumn, 9–10 km in summer, and 7–8 km in winter. The high CTHs caused by the strong convective activities in summer may be related to sufficient water vapour transport. These corrected CTH data are also used to classify cloud types, the results indicate that the proportion of high clouds is highest in summer, while the proportion of medium clouds is lower than in the other three seasons. Also, the average CTH of the low, medium, and high clouds is highest in summer and lowest in winter.

Enhanced cipher text-policy attribute-based encryption and serialization on media cloud data

PurposeThere are various system techniques or models which are used for access control by performing cryptographic operations and characterizing to provide an efficient cloud and in Internet of Things (IoT) access control. Particularly in cloud computing environment, there is a large-scale distribution of these traditional symmetric cryptographic techniques. These symmetric cryptographic techniques use the same key for encryption and decryption processes. However, during the execution of these phases, they are under the problems of key distribution and management. The purpose of this study is to provide efficient key management and key distribution in cloud computing environment.Design/methodology/approachThis paper uses the Cipher text-Policy Attribute-Based Encryption (CP-ABE) technique with proper access control policy which is used to provide the data owner’s control and share the data through encryption process in Cloud and IoT environment. The data are shared with the the help of cloud storage, even in presence of authorized users. The main method used in this research is Enhanced CP-ABE Serialization (E-CP-ABES) approach.FindingsThe results are measured by means of encryption, completion and decryption time that showed better results when compared with the existing CP-ABE technique. The comparative analysis has showed that the proposed E-CP-ABES has obtained better results of 2373 ms for completion time for 256 key lengths, whereas the existing CP-ABE has obtained 3129 ms of completion time. In addition to this, the existing Advanced Encryption Standard (AES) scheme showed 3449 ms of completion time.Originality/valueThe proposed research work uses an E-CP-ABES access control technique that verifies the hidden attributes having a very sensitive dataset constraint and provides solution to the key management problem and access control mechanism existing in IOT and cloud computing environment. The novelty of the research is that the proposed E-CP-ABES incorporates extensible, partially hidden constraint policy by using a process known as serialization procedure and it serializes to a byte stream. Redundant residue number system is considered to remove errors that occur during the processing of bits or data obtained from the serialization. The data stream is recovered using the Deserialization process.

Use of regional computing to minimize the social big data effects

Smart devices are commonly used these days, especially in smart cities, resulting in massive social media engagement and heavy workload generation. Statistics show that over 4.41 billion people will subscribe to social media by 2025, which covers the majority of the world’s population. Its versatility and enriched features allow users to upload and download large data (e.g, High Definition (HD)) videos and HD live streaming). This heavy workload overburdens the mainstream network and social media cloud, increasing the delay and costs for instant communications. To cope with the aforementioned challenges, this paper aims to minimize the social big data effects on the mainstream network and the social media cloud servers. In connection with these objectives, a survey result shows that 75% of social connections originate from the local region, and their data has no need for instant migration to the remote cloud servers. We extended the Edge/Fog computing concept to create Regional Computing (RC) for Social Media Platforms (SMP). These servers are created at the regional level. Initially, the data is stored and processed at regional computing servers and later on, in off-peak hours, migrated to the cloud servers. The initial result shows that the regional computing servers filter the content regionally and minimize the burden on the mainstream network. It also reduces the cloud server’s workload, resulting in minimal delays and costs.