公开(公告)号：WO2020139606A1

公开(公告)日：2020-07-02

申请号：PCT/US2019/066605

申请日：2019-12-16

Applicant: THE NIELSEN COMPANY (US), LLC

Inventor： PETRO, James ,  NELSON, Dan ,  CROSS, Deborah ,  RANGANATHAN, Raghuram

IPC: H04N21/2389 ,  H04N21/845 ,  H04N21/8358 ,  H04N21/435 ,  H04L9/32

Abstract: Methods, apparatus, systems and articles of manufacture are disclosed selectively generating and storing hashed reference signatures. An example method disclosed herein determining whether watermark coverage of a first media segment satisfies a dropout constraint, the first media segment corresponding to a first monitoring time interval of a media source feed and, when the watermark coverage of the first media segment does not satisfy the dropout constraint hashing first media signatures associated with the first media segment to generate corresponding first hashed signatures and generating first reference data for the first media segment, the first reference data including the first hashed signatures and the first media signatures. The example method further includes, when the watermark coverage of the first media segment satisfies the dropout constraint, generating second reference data for the first media segment, the second reference data including the first media signatures.

公开(公告)号：WO2023278251A1

公开(公告)日：2023-01-05

申请号：PCT/US2022/034755

申请日：2022-06-23

Applicant: THE NIELSEN COMPANY (US), LLC

Inventor： PETRO, James ,  NELSON, Daniel ,  RANGANATHAN, Raghuram ,  TAPSE, Sandeep

IPC: H04N21/442 ,  H04N21/478 ,  H04N21/24 ,  H04N21/8352 ,  G06F16/435 ,  G06F21/16 ,  H04N21/25883 ,  H04N21/25891 ,  H04N21/43 ,  H04N21/44222 ,  H04N21/4781 ,  H04N21/812 ,  H04N21/8358

Abstract: Methods, apparatus, systems and articles of manufacture to credit unidentified media are disclosed. Disclosed example apparatus include a database updater to store a first group of signatures representative of unidentified media in a database, the first group of signatures obtained from a first media meter to monitor a first media presentation device, the first group of signatures associated with a first media exposure category based on media source information reported by the first media meter. Disclosed example apparatus also include a media comparator to compare a second group of signatures with the first group of signatures, the second group of signatures obtained from a second media meter to monitor a second media presentation device. Disclosed example apparatus further include a reporter to credit media exposure represented by the second group of signatures to the first media exposure category when the second group of signatures matches the first group of signatures.

公开(公告)号：WO2020139608A1

公开(公告)日：2020-07-02

申请号：PCT/US2019/066611

申请日：2019-12-16

Applicant: THE NIELSEN COMPANY (US), LLC

Inventor： PETRO, James ,  NELSON, Dan ,  CROSS, Deborah ,  RANGANATHAN, Raghuram

IPC: H04N21/2389 ,  H04N21/435 ,  H04N21/8358 ,  H04L9/32

Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to optimize reference signature matching using watermark matching. An example disclosed herein includes selecting first unhashed reference signatures to evaluate for a second time segment of monitoring data based on watermark coverage of a first time segment of the monitoring data, the monitoring data obtained from a meter monitoring media presented by a media device and comparing the first unhashed reference signatures with first unhashed monitored signatures from the second time segment of the monitoring data. The example further includes, when a first media event associated with the monitoring data is not identifiable based on the comparing of the first of unhashed reference signatures with the first unhashed monitored signatures hashing the first unhashed monitored signatures to form a corresponding first hashed monitored signatures and comparing the first hashed monitored signatures with a library of reference hashed signatures to determine the first media event associated with the second time segment of the monitoring data.

公开(公告)号：WO2021242893A1

公开(公告)日：2021-12-02

申请号：PCT/US2021/034309

申请日：2021-05-26

Applicant: THE NIELSEN COMPANY (US), LLC

Inventor： WRIGHT, David H. ,  NELSON, Daniel ,  RANGANATHAN, Raghuram ,  MCCULLEY, Derrick

IPC: H04N21/235 ,  H04N21/442 ,  H04N21/435 ,  H04N21/835

Abstract: Methods, apparatus, systems and articles of manufacture to credit media segments shared among multiple media assets are disclosed. Example methods disclosed herein include comparing a sequence of monitored media signatures with a library of reference signatures to determine a signature match, the monitored media signatures representative of a monitored media presentation. Disclosed example methods also include determining a duration and an offset of the signature match, the offset to represent a position of the signature match relative to a start of a reference media asset associated with the signature match. Disclosed example methods further include crediting a segment of the monitored media presentation represented by the signature match to an identifier of a class of media assets including the reference media asset in response to a determination that (i) the duration of the signature match does not exceed a first threshold and (ii) the offset does not exceed a second threshold.

公开(公告)号：WO2021242767A1

公开(公告)日：2021-12-02

申请号：PCT/US2021/034071

申请日：2021-05-25

Applicant: THE NIELSEN COMPANY (US), LLC

Inventor： WRIGHT, David Howell ,  NELSON, Daniel ,  RANGANATHAN, Raghuram ,  MCCULLEY, Derrick

IPC: H04N21/4385 ,  H04N21/439 ,  H04N21/472 ,  H04N21/845 ,  G10L15/00

Abstract: Methods and apparatus to identify alternate language versions of media based on signature matching are disclosed. Example apparatus disclosed herein include a signature matcher to compare signatures in monitored data with reference signatures to determine signature match strengths associated with portions of the monitored data, the reference signatures associated with reference media assets. Disclosed example apparatus also include a data segmenter to divide the monitored data into first and second segments, the first segments including temporally adjacent portions of the monitored data having signature match strengths that satisfy a threshold, the second segments including temporally adjacent portions of the monitored data having signature match strengths that do not satisfy the threshold. Disclosed example apparatus further includes a trend determiner to determine, based on a pattern of the first and second segments, whether the monitored data is associated with an alternative language version of one of the reference media assets.

公开(公告)号：WO2021195539A1

公开(公告)日：2021-09-30

申请号：PCT/US2021/024435

申请日：2021-03-26

Applicant: THE NIELSEN COMPANY (US), LLC

Inventor： NELSON, Daniel ,  RANGANATHAN, Raghuram

IPC: H04H60/64 ,  H04H60/37 ,  H04H60/48 ,  H04L9/06 ,  H04N21/23418 ,  H04N21/2353 ,  H04N21/2407 ,  H04N21/835

Abstract: Example apparatus disclosed herein to implement signature matching with meter data aggregation for use in media identification applications include a match job aggregator to aggregate batches of meter data from a meter to form aggregated meter data associated with the meter, and a hash matcher to identify a valid hash key match between meter hash keys generated from meter signatures in the aggregated meter data and reference hash keys corresponding to a collection of media assets. Disclosed example apparatus also include a signature matcher to align, based on the valid hash key match, a sequence of reference signatures corresponding to a first media asset associated with the valid hash key match and a corresponding sequence of the meter signatures, and compare the sequence of reference signatures and the corresponding sequence of meter signatures to identify media represented by at least a portion of the sequence of the meter signatures.

公开(公告)号：WO2022250963A1

公开(公告)日：2022-12-01

申请号：PCT/US2022/028821

申请日：2022-05-11

Applicant: THE NIELSEN COMPANY (US), LLC

Inventor： RANGANATHAN, Raghuram ,  WRIGHT, David Howell ,  PETRO, James ,  NELSON, Dan ,  CROSS, Deborah

IPC: H04N21/4623 ,  H04N21/472 ,  H04N21/442 ,  H04N21/266 ,  H04N21/8547

Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed to identify candidates for media asset qualification. Example apparatus disclosed herein include a media creditor to determine whether to credit a first media asset to linear media or non-linear media, the non-linear media including subscription video on demand (SVOD). Disclosed example apparatus also include a media asset candidate controller to: classify the first media asset as a non-candidate for media asset qualification in response to the first media asset being credited to the linear media or the non-linear media. In some examples, the media asset candidate controller is to determine whether to classify the first media asset as a candidate for media asset qualification based on whether the first media asset remains uncredited by the media creditor and the first media asset overlaps a streaming period.

公开(公告)号：WO2021242894A1

公开(公告)日：2021-12-02

申请号：PCT/US2021/034311

申请日：2021-05-26

Applicant: THE NIELSEN COMPANY (US), LLC

Inventor： WRIGHT, David H. ,  NELSON, Daniel ,  RANGANATHAN, Raghuram ,  MCCULLEY, Derrick

IPC: H04N21/235 ,  H04N21/442 ,  H04N21/472 ,  H04N21/435 ,  H04N21/835

Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to reduce false crediting of exposure to video-on-demand media assets. Example apparatus disclosed herein include a signature matcher to compare a sequence of monitored media signatures to sequences of reference signatures representative of corresponding reference media assets, the sequence of monitored media signatures included in monitoring data reported by a media device meter, the sequences of reference signature stored in a library of reference signatures. Disclosed example apparatus also include a matched assets counter to determine a count of ones of the reference media assets represented by corresponding ones of the sequences of reference signatures determined to match the sequence of monitored media signatures. Disclosed examples further include a credit determiner to determine whether to credit media exposure to a first one of the reference media assets based on the count.

公开(公告)号：WO2021242890A1

公开(公告)日：2021-12-02

申请号：PCT/US2021/034305

申请日：2021-05-26

Applicant: THE NIELSEN COMPANY (US), LLC

Inventor： WRIGHT, David, H. ,  NELSON, Daniel ,  RANGANATHAN, Raghuram ,  MCCULLEY, Derrick

IPC: H04N21/235 ,  H04N21/442 ,  H04N21/435 ,  H04N21/835

Abstract: Methods, apparatus, systems and articles of manufacture to reduce false positive signature matches due to similar media segments in different reference media assets are disclosed. Example apparatus disclosed herein include a signature matcher to compare monitored media signatures with a library of reference media signatures, the monitored media signatures associated with monitored media, the library of reference media signatures including sequences of reference signatures associated with respective reference media assets. Disclosed example apparatus also include a match information identifier to identify a number of different matched reference media assets associated with ones of the sequences of reference media signatures that match a sequence of matched monitored media signatures. Disclosed example apparatus further include a false positive identifier to, in response to the number of different matched reference media assets satisfying a threshold number, eliminate one or more of the matched reference media assets from being credited to the monitored media.

公开(公告)号：WO2015156843A1

公开(公告)日：2015-10-15

申请号：PCT/US2014/068173

申请日：2014-12-02

Applicant: THE NIELSEN COMPANY (US), LLC

Inventor： NELSON, Daniel ,  SRINIVASAN, Venugopal ,  RAMASWAMY, Arun ,  RANGANATHAN, Raghuram ,  MCARTHUR, Kenneth William

IPC: H04N21/8352 ,  H04N21/2347

CPC classification number: H04N21/44213 ,  G06K9/00744 ,  H04H60/31 ,  H04H60/40 ,  H04H60/56 ,  H04H2201/90 ,  H04N21/23418 ,  H04N21/25883 ,  H04N21/25891 ,  H04N21/44008 ,  H04N21/4408 ,  H04N21/44204 ,  H04N21/44222 ,  H04N21/8352

Abstract: Methods, apparatus, systems and articles of manufacture to perform signature retrieval and matching for media monitoring are disclosed. Example methods disclosed herein can include querying a first table using a first site signature obtained from a monitored site, the first table including hash keys corresponding to respective reference signatures, the first table further including respective qualifier data descriptive of respective ones of the reference signatures, Such example methods can also include querying a second table using first qualifier data obtained from querying the first table using the first site signature, the first qualifier data descriptive of a first reference signature corresponding to a first hash key determined to match the first site signature. Such example methods can further include comparing a first block of site signatures with a portion of a plurality of blocks of reference signatures obtained from querying the second table using the first qualifier data.

Abstract translation: 公开了用于进行媒体监控的签名检索和匹配的方法，装置，系统和制品。 本文公开的示例性方法可以包括使用从被监视站点获得的第一站点签名查询第一表，第一表包括与相应参考签名相对应的散列密钥，第一表还包括描述相应参考签名的相应限定符数据， 这样的示例方法还可以包括使用从第一站点签名查询第一表获得的第一限定符数据来查询第二表，第一限定符数据描述对应于确定为匹配第一站点签名的第一散列密钥的第一参考签名。 这种示例性方法还可以包括将站点签名的第一块与使用第一限定符数据查询第二表获得的多个参考签名块的一部分进行比较。