Patents by Inventor Chandrashekhar Nagarajan

Chandrashekhar Nagarajan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10445788
    Abstract: An advertising (“ad”) system allows users to specify a budget for an advertisement (“ad”) campaign including ad requests (“ads”), and the ad system automatically determines bids on a per-impression basis to pace the ad spend according to the budget. The ad system computes a “regret” metric for the ad campaign, which is the total amount over the course of the ad campaign that the advertiser had to pay for presenting an ad above the ideal bid (e.g., the bid that would have captured at least a threshold number of the lowest priced impressions during the ad campaign's life while spending the budget). The ad system may use the regret metric to indicate the performance of the ad campaign, e.g., as feedback for the advertiser.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: October 15, 2019
    Assignee: Facebook, Inc.
    Inventors: Anand Sumatilal Bhalgat, Subha Ramakrishna Gummadi, Chandrashekhar Nagarajan
  • Publication number: 20180268490
    Abstract: An online system receives content items from publishing users for presentation to other users. When selecting content for presentation to users, the online system accounts for amounts of compensation from publishing users when presenting content items. To prevent publishing users from exploiting content selection by the online system to obtain disproportionate presentation of their content items relative to other publishing users, the online system generates an estimated amount of revenue from various publishing users from presenting their content items. The online system compares an amount of compensation received from a publishing user to the estimated amount of revenue from the publishing user, and generates clusters of content items from the publishing user for review if the amount of compensation is at least a threshold amount less than the estimated amount of revenue.
    Type: Application
    Filed: March 17, 2017
    Publication date: September 20, 2018
    Inventors: Eric Michael Sodomka, Anand Sumatilal Bhalgat, Chandrashekhar Nagarajan, Dominic Coey, Nicolas Emilio Stier Moses, Brent Christian Dorman, Molly Katherine Duffy
  • Publication number: 20180174230
    Abstract: An online system presents different content items to different sets of users to evaluate how changes to content or changes to the online system affect user interaction with the content items or presentation of the content items. However, if the online system receives compensation for presenting different content items, the online system may receive a disproportionate amount of compensation for presenting one of the content items that improves user interaction. To prevent such disproportionate allocation of compensation between presentation of different contents items, the online system allocates sets of users to whom different content items are eligible to be presented to maintain a specified budget for presenting the different content items. The online system also differently allocates users across sets to whom different content items are eligible for presentation to prevent biasing of users from presentation of other different content items to users done in parallel.
    Type: Application
    Filed: December 19, 2016
    Publication date: June 21, 2018
    Inventors: Harsh Doshi, Xin Liu, Chandrashekhar Nagarajan, Anand Sumatilal Bhalgat, Wenjie Fu, Subha Ramakrishna Gummadi, Dianshi Li
  • Publication number: 20170140438
    Abstract: An advertising (“ad”) system allows users to specify a budget for an advertisement (“ad”) campaign including ad requests (“ads”), and the ad system automatically determines bids on a per-impression basis to pace the ad spend according to the budget. The ad system computes a “regret” metric for the ad campaign, which is the total amount over the course of the ad campaign that the advertiser had to pay for presenting an ad above the ideal bid (e.g., the bid that would have captured at least a threshold number of the lowest priced impressions during the ad campaign's life while spending the budget). The ad system may use the regret metric to indicate the performance of the ad campaign, e.g., as feedback for the advertiser.
    Type: Application
    Filed: November 13, 2015
    Publication date: May 18, 2017
    Inventors: Anand Sumatilal Bhalgat, Subha Ramakrishna Gummadi, Chandrashekhar Nagarajan
  • Publication number: 20150348086
    Abstract: Methods and systems are disclosed which allow shifting inventory to fulfill guaranteed delivery advertisement contracts. Inventory may be allocated from a supply of unallocated inventory to one or more advertisers in accordance with guaranteed delivery agreements. Inventory may be reserved for the one or more advertisers from the remaining supply of unallocated inventory. Inventory may then be allocated to an additional advertiser by using unallocated inventory or shifted inventory, or a combination of unallocated inventory and shifted inventory. The shifted inventory is shifted out of the allocation for the first advertiser and the shifted inventory is replaced by the reserve inventory for the respective advertiser.
    Type: Application
    Filed: August 12, 2015
    Publication date: December 3, 2015
    Applicant: YAHOO! INC.
    Inventors: Erik Vee, Dongni Chen, Peiji Chen, Satyen Kale, Srinath Mandalapu, Chandrashekhar Nagarajan
  • Patent number: 9135632
    Abstract: Methods and systems are disclosed which allow shifting inventory to fulfill guaranteed delivery advertisement contracts. Inventory may be allocated from a supply of unallocated inventory to one or more advertisers in accordance with guaranteed delivery agreements. Inventory may be reserved for the one or more advertisers from the remaining supply of unallocated inventory. Inventory may then be allocated to an additional advertiser by using unallocated inventory or shifted inventory, or a combination of unallocated inventory and shifted inventory. The shifted inventory is shifted out of the allocation for the first advertiser and the shifted inventory is replaced by the reserve inventory for the respective advertiser.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: September 15, 2015
    Assignee: Yahoo! Inc.
    Inventors: Erik Vee, Dongni Chen, Peiji Chen, Satyen Kale, Srinath Mandalapu, Chandrashekhar Nagarajan
  • Publication number: 20130246161
    Abstract: Systems and methods for adjusting online ads delivery pace derive, in a computer system, a current impression delivery for an ads display contract. A plurality of estimation bands are delivered corresponding to over delivery and under delivery for the ads display contract. A relative distance is determined between the current impression delivery and the plurality of estimation bands. An adjustment factor is selected according to the relative distance. The adjustment factor is sent to a database.
    Type: Application
    Filed: March 16, 2012
    Publication date: September 19, 2013
    Applicant: Yahoo! Inc.
    Inventors: Jason Zien, Erik Vee, Sergei Vassilvitskii, Srinath Mandalapu, Marco Manfai Yu, Peiji Chen, Chandrashekhar Nagarajan, Wenjing Ma
  • Publication number: 20130173384
    Abstract: Methods and systems are disclosed which allow shifting inventory to fulfill guaranteed delivery advertisement contracts. Inventory may be allocated from a supply of unallocated inventory to one or more advertisers in accordance with guaranteed delivery agreements. Inventory may be reserved for the one or more advertisers from the remaining supply of unallocated inventory. Inventory may then be allocated to an additional advertiser by using unallocated inventory or shifted inventory, or a combination of unallocated inventory and shifted inventory. The shifted inventory is shifted out of the allocation for the first advertiser and the shifted inventory is replaced by the reserve inventory for the respective advertiser.
    Type: Application
    Filed: December 28, 2011
    Publication date: July 4, 2013
    Applicant: Yahoo! Inc.
    Inventors: Erik Vee, Dongni Chen, Peiji Chen, Satyen Kale, Srinath Mandalapu, Chandrashekhar Nagarajan
  • Publication number: 20130166395
    Abstract: The present application provides systems and corresponding methods for creating a delivery allocation plan in a network-based environment. The methods may include receiving and storing advertising contracts and data related to the advertising contracts; constructing a bipartite graph based on the received contract data; annotating each demand node; and receiving impression data and other eligible contract data. Thereafter, the method may include for each impression, calculating a first supply value and for each contract, calculating a first demand value. The first demand value may be used to calculate a second supply value and a delivery allocation may be calculated using the second supply value and the second demand value for each contract.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 27, 2013
    Inventors: Sergei Vassilvitskii, Chandrashekhar Nagarajan, Peiji Chen, Jian Yang, John Tomlin, Vijay Bharadwaj, Erik Vee, WenJing Ma