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  2. Video optimization - Wikipedia

    en.wikipedia.org/wiki/Video_optimization

    Conversely, if the network can deliver at higher than the current bitrate, the client will request the next chunk to be at a higher bitrate, and quality will increase. Cloud. A newer approach is to perform video and multimedia optimization in "the cloud" – data centers either operated by the service provider or

  3. Video quality - Wikipedia

    en.wikipedia.org/wiki/Video_quality

    Video quality. Video quality is a characteristic of a video passed through a video transmission or processing system that describes perceived video degradation (typically compared to the original video). Video processing systems may introduce some amount of distortion or artifacts in the video signal that negatively impact the user's perception ...

  4. Social media - Wikipedia

    en.wikipedia.org/wiki/Social_media

    The PLATO system was launched in 1960 at the University of Illinois and subsequently commercially marketed by Control Data Corporation.It offered early forms of social media features with innovations such as Notes, PLATO's message-forum application; TERM-talk, its instant-messaging feature; Talkomatic, perhaps the first online chat room; News Report, a crowdsourced online newspaper, and blog ...

  5. Tweet (social media) - Wikipedia

    en.wikipedia.org/wiki/Tweet_(social_media)

    Tweet (social media) A user tweeting about bugs. A tweet is a short status update on the social networking site Twitter which can include images, videos, GIFs, straw polls, hashtags, mentions, and hyperlinks. Around 80% of all tweets are made by 10% of users, averaging 138 tweets per month, with the median user making only two tweets per month.

  6. Interlaced video - Wikipedia

    en.wikipedia.org/wiki/Interlaced_video

    Interlaced video (also known as interlaced scan) is a technique for doubling the perceived frame rate of a video display without consuming extra bandwidth. The interlaced signal contains two fields of a video frame captured consecutively. This enhances motion perception to the viewer, and reduces flicker by taking advantage of the ...

  7. Impact of the COVID-19 pandemic on social media - Wikipedia

    en.wikipedia.org/wiki/Impact_of_the_COVID-19...

    For example, the amount of Facebook users went up to about 1.9 billion worldwide by the end of 2020, marking an 8.7% increase over 2019. [8] Meanwhile, WhatsApp has reported a 40% percent increase in usage overall. [1] Moreover, there was a noticeable increase in the use of Zoom since the start of the pandemic. [9]

  8. Twitter - Wikipedia

    en.wikipedia.org/wiki/Twitter

    Twitter, officially known as X since July 2023, is a social networking service. It is one of the world's largest social media websites and one of the most visited websites in the world. [3][4] Users can share short text messages, images, and videos in short posts commonly known as "tweets" and like or retweet (officially "repost") other users ...

  9. x264 - Wikipedia

    en.wikipedia.org/wiki/X264

    x264 contains some psychovisual enhancements which aim to increase the subjective video quality of the encoded video.. Adaptive quantisation in two modes using VAQ.The second mode, a later addition, adapts the strength per frame in an attempt to improve the quality.