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    Techniques for detecting media playback errors
    101.
    发明授权
    Techniques for detecting media playback errors 有权

    公开(公告)号：US10306270B2

    公开(公告)日：2019-05-28

    申请号：US15633661

    申请日：2017-06-26

    Applicant: NETFLIX, Inc.

    Inventor： Frederic Turmel ,  Nicholas Newell

    IPC: H04N21/234 ,  H04N19/89 ,  H04L29/06 ,  H04L12/26 ,  H04L12/24

    Abstract: An endpoint device outputs frames of test media during a testing procedure. Each frame of test media includes a test pattern. A test module coupled to the endpoint device samples the test pattern and transmits sample data to a media test engine. The media test engine decodes a binary number from the test pattern and then converts the binary number to an integer value that is associated with the corresponding frame. The media test engine then analyzes sequences of these integer values to identify playback errors associated with the endpoint device.

    Synthetic supernet compression
    102.
    发明授权
    Synthetic supernet compression 有权

    公开(公告)号：US10263890B2

    公开(公告)日：2019-04-16

    申请号：US15237541

    申请日：2016-08-15

    Applicant: Netflix, Inc.

    Inventor： David Bannister

    IPC: H04L12/741 ,  H04L12/733 ,  H04L12/715 ,  H04L12/753

    Abstract: One embodiment of the present invention sets forth a technique for compressing a forwarding table. The technique includes selecting, from a listing of network prefixes, a plurality of network prefixes that are within a range of a subnet. The technique further includes sorting the plurality of network prefixes to generate one or more subgroups of network prefixes and selecting a first subgroup of network prefixes included in the one or more subgroups of network prefixes. The technique further includes generating a synthetic supernet based on the first subgroup of network prefixes.

    Managing content on an ISP cache
    103.
    发明授权
    Managing content on an ISP cache 有权

    公开(公告)号：US10182090B2

    公开(公告)日：2019-01-15

    申请号：US14846723

    申请日：2015-09-04

    Applicant: NETFLIX, Inc

    Inventor： David Fullagar ,  Kenneth W. Florance ,  Ian Van Hoven

    IPC: G06F15/167 ,  H04L29/06 ,  H04N21/218 ,  H04N21/222 ,  H04N21/237 ,  H04N21/25 ,  H04N21/258 ,  H04N21/61 ,  H04L29/08 ,  G06F17/30 ,  G06Q10/00

    Abstract: One embodiment of the present invention sets forth a method for updating content stored in a cache residing at an internet service provider (ISP) location that includes receiving popularity data associated with a first plurality of content assets, where the popularity data indicate the popularity of each content asset in the first plurality of content assets across a user base that spans multiple geographic regions, generating a manifest that includes a second plurality of content assets based on the popularity data and a geographic location associated with the cache, where each content asset included in the manifest is determined to be popular among users proximate to the geographic location or users with preferences similar to users proximate to the geographic location, and transmitting the manifest to the cache, where the cache is configured to update one or more content assets stored in the cache based on the manifest.

    Gaussian ranking using matrix factorization
    104.
    发明授权
    Gaussian ranking using matrix factorization 有权

    公开(公告)号：US10180968B2

    公开(公告)日：2019-01-15

    申请号：US15044020

    申请日：2016-02-15

    Applicant: NETFLIX, INC.

    Inventor： Harald Steck

    IPC: G06F17/30 ,  G06N99/00

    Abstract: In one embodiment of the present invention, a training engine teaches a matrix factorization model to rank items for users based on implicit feedback data and a rank loss function. In operation, the training engine approximates a distribution of scores to corresponding ranks as an approximately Gaussian distribution. Based on this distribution, the training engine selects an activation function that smoothly maps between scores and ranks. To train the matrix factorization model, the training engine directly optimizes the rank loss function based on the activation function and implicit feedback data. By contrast, conventional training engines that optimize approximations of the rank loss function are typically less efficient and produce less accurate ranking models.

    Server selection for content distribution
    105.
    发明授权
    Server selection for content distribution 有权

    公开(公告)号：US09998354B2

    公开(公告)日：2018-06-12

    申请号：US14289552

    申请日：2014-05-28

    Applicant: Netflix, Inc.

    Inventor： Christopher Brand ,  David Fullagar

    IPC: G06F15/16 ,  H04L12/733 ,  H04L29/06 ,  H04L29/08

    CPC classification number: H04L45/126 ,  H04L65/4084 ,  H04L65/80 ,  H04L67/10 ,  H04L67/101 ,  H04L67/1021 ,  H04L67/18 ,  H04L67/42

    Abstract: In an embodiment, a method comprises receiving a first routing table of a first server computer; receiving a second routing table of a second server computer; receiving a request, from a client computer, for information about content servers that hold a media item title, wherein the request includes a client internet protocol address of the client computer; estimating that the first server computer is closer to the client computer than the second server computer is to the client computer based, at least in part, on the client internet protocol address, the first routing table, and the second routing table; sending, to the client computer, a first address to the client computer based, at least in part, on estimating that the first server computer is closer to the client computer than the second server computer, wherein the first address identifies the media item title stored on the first server computer.

    Distributed traffic management system and techniques
    106.
    发明授权
    Distributed traffic management system and techniques 有权

    公开(公告)号：US09954822B2

    公开(公告)日：2018-04-24

    申请号：US15471254

    申请日：2017-03-28

    Applicant: Netflix, Inc.

    Inventor： Jason Chan ,  Poornaprajna Udupi ,  Shashi Madappa

    IPC: H04L29/06 ,  H04L29/08

    CPC classification number: H04L63/0245 ,  G06F17/30312 ,  H04L63/0218 ,  H04L63/0227 ,  H04L63/1408 ,  H04L63/20 ,  H04L67/10

    Abstract: Approaches, techniques, and mechanisms are disclosed for implementing a distributed firewall. In an embodiment, many different computer assets police incoming messages based on local policy data. This local policy data is synchronized with global policy data. The global policy data is generated by one or more separate analyzers. Each analyzer has access to message logs, or information derived therefrom, for groups of computer assets, and is thus able to generate policies based on intelligence from an entire group as opposed to an isolated asset. Among other effects, some of the approaches, techniques, and mechanisms may be effective even in computing environments with limited supervision over the attack surface, and/or computing environments in which assets may need to make independent decisions with respect to how incoming messages should be handled, on account of latency and/or unreliability in connections to other system components.

    Evaluation of paths through graph-based data representation
    108.
    发明授权
    Evaluation of paths through graph-based data representation 有权

    公开(公告)号：US09948601B2

    公开(公告)日：2018-04-17

    申请号：US14031689

    申请日：2013-09-19

    Applicant: Netflix, Inc.

    Inventor： Jafar Husain

    IPC: H04L29/12 ,  G06F17/30 ,  H04N21/472 ,  G06F12/0811 ,  G06F12/0817 ,  H04L12/701

    CPC classification number: H04L61/2596 ,  G06F12/0811 ,  G06F12/0817 ,  G06F17/30831 ,  G06F17/30858 ,  H04L43/0876 ,  H04L45/00 ,  H04N21/47202

    Abstract: Embodiments of the invention generally provide a method, a computing system, and a computer-readable medium configured to respond to requests for payload data and provide unique cache keys for caching the payload data. The computer-implemented method includes accepting a first request for translation that specifies a first path configured to identify first payload data associated with a graph object. The computer-implemented method further includes determining that the graph object includes a first translation node associated with a first portion of the first path. The computer-implemented method also includes obtaining, from the graph object, a second path that is associated with the first translation node. The computer-implemented method further includes replacing the first portion of the first path with the second path to generate a first translated path. The computer-implemented method also includes obtaining, from the graph object, the first payload data, based on the first translated path.

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