Patents by Inventor Anan SAWABE
Anan SAWABE 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).
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Patent number: 11558769Abstract: An estimating apparatus (1) according to the present invention includes a plurality of feature quantity calculating units (111 to 11n) configured to implement processing of calculating, from a communication traffic, a differing feature quantity group for each of a plurality of types of control attributes relating to communication control, the plurality of feature quantity calculating units being each associated with each of the plurality of types of control attributes, a calculating unit (12) configured to calculate, with regard to each of two or more of the plurality of types of control attributes, each of the feature quantity groups from the communication traffic by use of the feature quantity calculating unit being associated with each of the control attributes, and an estimating unit (13) configured to estimate an attribute value of each of the two or more control attributes from each of the calculated feature quantity groups.Type: GrantFiled: September 5, 2019Date of Patent: January 17, 2023Assignee: NEC CORPORATIONInventors: Anan Sawabe, Takanori Iwai
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Publication number: 20220408304Abstract: A priority control apparatus includes: load information acquisition part which acquires communication load information per priority at relay apparatus that controls allocation of communication resources relative to individual communication depending on a priority that is set for the individual communication between two or more communication apparatuses; communication quality acquisition part which acquires communication quality as to control target communication; and priority control part which calculates a first priority, with which communication quality as to the control target communication can satisfy a predetermined condition, by using a mathematical model that indicates a relationship between a piece of communication load information before a priority as to the control target communication is set as the first priority and a communication quality when the priority as to the control target communication concerned is set as the first priority, and which sets the calculated first priority as the priority ofType: ApplicationFiled: November 6, 2019Publication date: December 22, 2022Applicant: NEC CorporationInventors: Kosei KOBAYASHI, Anan SAWABE, Takanori IWAI
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Publication number: 20220393987Abstract: In order to able to mislead estimation regarding a transmission source through analysis of a communication traffic, a method according to an aspect of the present disclosure includes: dividing an original communication flow from a source apparatus into a plurality of communication flows matching a selected traffic characteristic; and transmitting a packet belonging to each of the plurality of communication flows to a reconstructing apparatus reconstructing the plurality of communication flows into the original communication flow.Type: ApplicationFiled: November 12, 2019Publication date: December 8, 2022Applicant: NEC CorporationInventor: Anan SAWABE
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Patent number: 11516274Abstract: A throughput division means (11) divides a throughput of a communication between a video delivery server configured to deliver, in a plurality of delivery modes, video data to a user terminal device used by a user and the user terminal device in a delivery period of the video data, according to a period of each delivery mode. A playback bit rate estimation means (12) estimates a playback bit rate of the video data, based on a throughput divided according to a period of the delivery mode. Thus, estimation precision of a video playback bit rate can be improved even when a video delivery server delivers video data in a plurality of delivery modes.Type: GrantFiled: May 23, 2018Date of Patent: November 29, 2022Assignee: NEC CORPORATIONInventors: Anan Sawabe, Takanori Iwai
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Patent number: 11509539Abstract: A traffic analysis apparatus includes: a first means that estimates a state sequence from time-series data of communication traffic based on a hidden Markov model, and groups, into one group, a plurality of patterns with resembling state transitions in the state sequence to perform extraction of a state sequence, with taking the plurality of patterns grouped into one group as one state; and a second means that determines an application state corresponding to the time-series data based on the state sequence extracted by the first means and predetermined application characteristics.Type: GrantFiled: October 25, 2018Date of Patent: November 22, 2022Assignee: NEC CORPORATIONInventors: Takanori Iwai, Anan Sawabe
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Publication number: 20220343220Abstract: There is provided a control apparatus including a memory storing instructions, and one or more processors configured to execute the instructions to function as a plurality of learners each configured to learn an action for controlling a network, the one or more processors being further configured to set learning information of a second learner that is not mature among the plurality of learners, based on learning information of a first learner that is mature among the plurality of learners.Type: ApplicationFiled: September 30, 2019Publication date: October 27, 2022Applicant: NEC CorporationInventors: Anan SAWABE, Takanori IWAI, Kosei KOBAYASHI
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Publication number: 20220345396Abstract: In order to provide an information processing apparatus that easily finds a network configuration corresponding to characteristics of a terminal to be connected, the information processing apparatus includes a model generation section and a specifying section, the model generation section being configured to generate a traffic pattern generation model, based on learning of a traffic pattern of a terminal, and the specifying section being configured to specify traffic for an output of the traffic pattern generation model, based on virtual traffic in the traffic pattern generation model. The information processing apparatus may further include a packet generation section configured to generate a packet, based on the specified traffic.Type: ApplicationFiled: July 21, 2020Publication date: October 27, 2022Applicant: NEC CorporationInventor: Anan SAWABE
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Publication number: 20220345376Abstract: In order to enable communication control to promptly comply with a communication environment, a system according to an aspect of the present disclosure includes: a first adjusting means for adjusting a parameter for controlling communication in a communication network by using a parameter determining method; and a second adjusting means for adjusting the parameter by using reinforcement learning, after adjusting the parameter using the parameter determining method.Type: ApplicationFiled: September 30, 2019Publication date: October 27, 2022Applicant: NEC CorporationInventors: Anan SAWABE, Takanori IWAI
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Publication number: 20220345377Abstract: In order to provide a control apparatus achieving an efficient control of network using a machine learning, a control apparatus includes a learning unit and a control unit. The learning unit learns an action for controlling the network. The control unit controls the network by setting a control parameter to an apparatus included in the network based on an action obtained from a learning model generated by the learning unit. The control unit decides the control parameter based on an influence of the action obtained from the learning model on a state of the network.Type: ApplicationFiled: September 30, 2019Publication date: October 27, 2022Applicant: NEC CorporationInventors: Anan SAWABE, Takanori IWAI
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Publication number: 20220337489Abstract: In order to provide a control apparatus achieving an efficient control of network using a machine learning, a control apparatus includes a learning unit and a storage unit. The learning unit learns an action for controlling the network. The storage unit stores learning information generated by the learning unit. The learning unit takes an action on the network. The learning unit decides a reward for the action taken on the network based on stationarity of the network after the action is taken to learn the action for controlling the network. The learning unit may give a positive reward to the action taken on the network if the network after the action is taken is in a stationary state, and give a negative reward to the action taken on the network if the network after the action is taken is in a non-stationary state.Type: ApplicationFiled: September 30, 2019Publication date: October 20, 2022Applicant: NEC CorporationInventors: Anan Sawabe, Takanori Iwai
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Publication number: 20220329494Abstract: In order to more easily perform communication control suitable for a communication environment in a communication network, a system according to an aspect of the present disclosure includes: an obtaining means for obtaining state information related to a state of a communication network; and a selecting means for selecting one of a plurality of machine learning based controllers for controlling communication in the communication network, based on the state information.Type: ApplicationFiled: September 30, 2019Publication date: October 13, 2022Applicant: NEC CorporationInventors: Anan SAWABE, Takanori IWAI, Kosei KOBAYASHI
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Publication number: 20220303190Abstract: In order to enable stabilizing control of communication in a communication network, a system according to an aspect of the present disclosure includes: an obtaining means for obtaining work-related information related to human work in network operation; and a training means for training a machine learning based controller for controlling communication in a communication network, based on the work-related information.Type: ApplicationFiled: September 30, 2019Publication date: September 22, 2022Applicant: NEC CorporationInventors: Anan SAWABE, Takanori IWAI, Kosei KOBAYASHI
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Patent number: 11438246Abstract: To realize real-time estimation when estimating the type and state of an application from time-series data of communication traffic. A communication traffic analyzing apparatus of the present invention has a state transition model generating unit configured to generate a probabilistic state transition model from time-series data of communication traffic, at each predetermined timing, a state transition model update unit configured to update a state transition model when a difference between the state transition models at two timings generated by the state transition model generating unit is greater than or equal to a predetermined difference and a communication state of network satisfies a predetermined condition, and an application type and state estimating unit configured to estimate a type and a state of an application using the updated state transition model.Type: GrantFiled: November 1, 2018Date of Patent: September 6, 2022Assignee: NEC CORPORATIONInventors: Anan Sawabe, Takanori Iwai
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Publication number: 20220256206Abstract: In order to provide a communication control method that enables resolution of a distributed moving image to be changed, a communication apparatus includes a first estimation section, and a calculation section. The first estimation section estimates a first resolution of a distributed moving image, based on traffic of the distributed moving image. The calculation section calculates a first bit rate for distributing the distributed moving image at a second resolution, based on the first resolution. The communication apparatus may further include a control section that performs traffic control of the distributed moving image, based on the first bit rate. The first estimation section may estimate the first resolution by using statistical information on resolutions of a plurality of distributed moving images.Type: ApplicationFiled: August 8, 2019Publication date: August 11, 2022Applicant: NEC CorporationInventor: Anan SAWABE
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Patent number: 11411850Abstract: A traffic analysis apparatus includes an information amount calculation part that calculates information amounts of a plurality of items of time series data relating to communication traffic and an input information selection part that selects at least one item of time series data based on the information amounts of the plurality of items of time series data.Type: GrantFiled: March 13, 2019Date of Patent: August 9, 2022Assignee: NEC CORPORATIONInventors: Takanori Iwai, Anan Sawabe, Sweety Suman
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Publication number: 20220103486Abstract: To perform flexible communication control according to variation in traffic so as to satisfy a plurality of QoS (Quality of Service) indexes. A communication apparatus (1) according to the present invention includes: a distribution unit (12) configured to distribute, based on a distribution rule for satisfying a plurality of different QoS indexes set in a plurality of queues (111 to 11n), respectively, a received packet to any one of the plurality of queues; and an update unit (13) configured to update the distribution rule based on performance information of each of the plurality of queues, the performance information being calculated for the QoS index set in each of the queues.Type: ApplicationFiled: January 14, 2020Publication date: March 31, 2022Applicant: NEC CorporationInventors: Anan SAWABE, Takanori IWAI
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Publication number: 20210352516Abstract: An estimating apparatus (1) according to the present invention includes a plurality of feature quantity calculating units (111 to 11n) configured to implement processing of calculating, from a communication traffic, a differing feature quantity group for each of a plurality of types of control attributes relating to communication control, the plurality of feature quantity calculating units being each associated with each of the plurality of types of control attributes, a calculating unit (12) configured to calculate, with regard to each of two or more of the plurality of types of control attributes, each of the feature quantity groups from the communication traffic by use of the feature quantity calculating unit being associated with each of the control attributes, and an estimating unit (13) configured to estimate an attribute value of each of the two or more control attributes from each of the calculated feature quantity groups.Type: ApplicationFiled: September 5, 2019Publication date: November 11, 2021Applicant: NEC CorporationInventors: Anan SAWABE, Takanori IWAI
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Patent number: 10999170Abstract: A communication system according to the present invention includes: a transmission-side apparatus that transmits a packet train composed of a plurality of estimation packets for estimating an available bandwidth; and a reception-side apparatus that receives the packet train, stores one or more lower-limit expansion ideal curves, one or more in-range ideal curves, and one or more upper-limit expansion ideal curves; calculates an actual amount of increase in delay occurring in the respective estimation packets based on a reception time of the estimation packet; selects an ideal curve most similar to the increase tendency of a delay indicated by the calculated amount of increase in delay, from among the lower-limit expansion ideal curve, the in-range ideal curve, and the upper-limit expansion ideal curve; and estimates the available bandwidth, based on a selection result on the ideal curve.Type: GrantFiled: March 21, 2017Date of Patent: May 4, 2021Assignee: NEC CORPORATIONInventor: Anan Sawabe
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Publication number: 20210021495Abstract: To realize real-time estimation when estimating the type and state of an application from time-series data of communication traffic. A communication traffic analyzing apparatus of the present invention has a state transition model generating unit configured to generate a probabilistic state transition model from time-series data of communication traffic, at each predetermined timing, a state transition model update unit configured to update a state transition model when a difference between the state transition models at two timings generated by the state transition model generating unit is greater than or equal to a predetermined difference and a communication state of network satisfies a predetermined condition, and an application type and state estimating unit configured to estimate a type and a state of an application using the updated state transition model.Type: ApplicationFiled: November 1, 2018Publication date: January 21, 2021Applicant: NEC CORPORATIONInventors: Anan SAWABE, Takanori IWAI
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Publication number: 20210014144Abstract: A traffic analysis apparatus includes an information amount calculation part that calculates information amounts of a plurality of items of time series data relating to communication traffic and an input information selection part that selects at least one item of time series data based on the information amounts of the plurality of items of time series data.Type: ApplicationFiled: March 13, 2019Publication date: January 14, 2021Applicant: NEC CORPORATIONInventors: Takanori IWAI, Anan SAWABE, Sweety SUMAN