Abstract: An online system receives content items from a third party content provider. For each content item, the online system inputs an image into a neural network and extracts a feature vector from a hidden layer of the neural network. The online system compresses each feature vector by assigning a label to each feature value representing whether the feature value was above a threshold value. The online system identifies a set of content items that the user has interacted with and determines a user feature vector by aggregating feature vectors of the set of content items. For a new set of content items, the online system compares the compressed feature vectors of the content item with the user feature vector. The online system selects one or more of the new content items based on the comparison and sends the selected content items to the user.

Abstract: An online system receives content items from a third party content provider. For each content item, the online system inputs an image into a neural network and extracts a feature vector from a hidden layer of the neural network. The online system compresses each feature vector by assigning a label to each feature value representing whether the feature value was above a threshold value. The online system identifies a set of content items that the user has interacted with and determines a user feature vector by aggregating feature vectors of the set of content items. For a new set of content items, the online system compares the compressed feature vectors of the content item with the user feature vector. The online system selects one or more of the new content items based on the comparison and sends the selected content items to the user.

Abstract: The present invention is a method of managing a neighbor table in a communication apparatus. The method includes the steps of the communication apparatus maintaining a neighbor table comprising a plurality of neighboring table entries corresponding to respective neighboring nodes being communication nodes in communication range of the communication apparatus. Upon determination that the neighbor table capacity has reached a threshold, replacing a first neighbor table entry corresponding to a first neighboring node from the neighbor table by a new neighbor table entry corresponding to a new neighboring node based on the determination that the new neighboring node is a communication partner.

Abstract: The present invention is related to verifying an installed lighting system (300), in particular an Ethernet-based lighting system (300), without it being necessary to employ a designated lighting controller and without it being necessary to completely commission the installed lighting system (300). According to an aspect of the invention, this is achieved by providing a network switch (200) that comprises a plurality of ports for coupling luminaires (312A, 312B, 312C, 312D) and sensors and/or actuators (314A, 314B) of the lighting system (300) to the network switch (200); and by setting the network switch (200) such that a signal received at a first port (e.g. port 4) of the plurality of ports is only forwarded to pre-selected ports (e.g. ports 2,3,5,6 and 7) of the plurality of ports.

Abstract: The present invention is related to verifying an installed lighting system (300), in particular an Ethernet-based lighting system (300), without it being necessary to employ a designated lighting controller and allowing the automatic commissioning of the installed lighting system (300). According to an aspect of the invention, this is achieved by providing a network switch (200) that comprises a plurality of ports for coupling luminaires (312A, 312B, 312C, 312D) and sensors and or actuators (314A, 314B) of the lighting system (300) to the network switch (200); and by setting the network switch (200) such that a signal received at a first port (e.g. port 4) of the plurality of ports is only forwarded to pre-selected ports (e.g. ports 2,3,5,6 and 7) of the plurality of ports.

Abstract: The invention describes a method of performing automatic commissioning of a network (N) comprising a plurality of network devices (10, 11, 12, 13), wherein each device (10, 11, 12, 13) is characterised by a device identifier (14) and wherein the devices (10, 11, 12, 13) are realised to exchange data packets (2), which method comprises the steps of obtaining a computer-readable installation plan (3) for the network (N), which installation plan (3) comprises a physical location descriptor (31) for devices (10, 11, 12, 13) of the network (N); deducing the network topology (T) of the network (N) from network descriptive information (40, 41, 42, 43) provided by the devices (10, 11, 12, 13) on the basis of data packets (2) exchanged between the devices (10, 11, 12, 13); and comparing the deduced network topology (T) to the installation plan (3) to allocate a physical location descriptor (31) to a device identifier (11).

Abstract: As at least part of a location network, there is provided a trigger node and multiple listening nodes. The trigger node wirelessly transmits a trigger signal to the mobile device, the trigger signal being configured to cause the mobile device to wirelessly emit a signal in response to receiving the trigger signal. The listening nodes listen for the response signal that was transmitted from the mobile device in response to the trigger signal, and thereby at each respective one of a plurality of the listening nodes that wirelessly receive the response signal from the mobile device, a respective measurement is taken of the response signal as received at the respective listening node, for use in performing a localization to determine the location of the mobile device based on one or more of these measurements.

Abstract: A system comprising location server, a localization module and a node manager. The location server comprises a network interface operable to receive measurement reports submitted from a plurality of reference nodes of a location network, each measurement report reporting a measurement of a signal received by a respective one of the reference nodes from a respective one of one or more mobile devices. The localization module is configured to determine a location of one or more of the mobile devices based on at least some of the plurality of measurement reports. The node manager is configured to control whether and/or when one or more of the plurality of measurement reports are submitted from one or more of the reference nodes, in dependence on a measure of relevance to the determination of the location of one or more of the mobile devices.

Abstract: The invention describes a method of performing automatic commissioning of a network (N) comprising a plurality of network devices (10, 11, 12, 13), wherein each device (10, 11, 12, 13) is characterized by a device identifier (14) and wherein the devices (10, 11, 12, 13) are realized to exchange data packets (2), which method comprises the steps of obtaining a computer-readable installation plan (3) for the network (N), which installation plan (3) comprises a physical location descriptor (31) for devices (10, 11, 12, 13) of the network (N); deducing the network topology (T) of the network (N) from network descriptive information (40, 41, 42, 43) provided by the devices (10, 11, 12, 13) on the basis of data packets (2) exchanged between the devices (10, 11, 12, 13); and comparing the deduced network topology (T) to the installation plan (3) to allocate a physical location descriptor (31) to a device identifier (11).

Abstract: The present invention relates to a method for operating a communication apparatus in a network comprising a plurality of communication nodes, upon reception of a message at the communication apparatus, the communication apparatus starting a retransmission delay being selected at random from a retransmission delay interval, said retransmission delay interval being dependent on at least one of a status of the communication apparatus and a property of the received message, the communication apparatus monitors retransmissions of said message by other communication nodes during said retransmission delay and the communication apparatus transmitting a retransmission of said message at the expiry of said retransmission delay if a statistic based on the retransmissions of said message by other communication nodes is below a threshold.

Abstract: The present invention relates to a method of managing a neighbor table in a communication apparatus the method comprising the steps of the communication apparatus maintaining a neighbor table comprising a plurality of neighboring table entries corresponding to respective neighboring nodes being communication nodes in communication range of the communication apparatus, said maintaining including, upon determination that the neighbor table capacity has reached a threshold, replacing a first neighbor table entry corresponding to a first neighboring node from the neighbor table by a new neighbor table entry corresponding to a new neighboring node based on the determination that the new neighboring node is a communication partner, wherein a communication node is defined as a communication partner if at least one the following conditions is met: condition a a message including the communication partner as source address has been received by the communication apparatus, or condition b a message including the communi

Abstract: A network switch (5) for example a PoE switch, is operable to control supply of electrical power to individual luminaires (1,2) in a lighting network. The luminaires receive both electrical power for operation and signals to switch on and off through a common cable connection (9) such as an Ethernet connection. When switched on, each luminaire sends a signal repeatedly towards the Po E switch until switched off and the switch (5) supplies power to the luminaire while successive signals are received within a period less than a predetermined shut off period (?). In this way, power to the luminaire can be disconnected to avoid consumption of standby power when not in use.

Abstract: A system comprising a localization database mapping reference nodes to zones; and a localization module configured to determine a representative measurement based on a combination of measurements for the nodes of each zone (e.g. RSSIs), and to compare the representative measurements with one another in order to directly determine which one or more of the zones the mobile device belongs to. The system further comprises a lighting database mapping between lamps and zones, configured to receive an index of each of the one or more determined zones from the localization module, and based thereon to directly relate the one or more determined zones to one or more of the lamps in the lighting database; and a lighting access service configured to grant the mobile device with access to control of those lamps on condition of being related to the one or more determined zones by the lighting database.

Abstract: The disclosure relates to an application server which provides a user of a mobile device with a location based service controlling functionality of an environment external to the mobile device, where the control of the functionality is conditional on an estimated location of the mobile device as estimated by a positioning algorithm. A feedback module is configured to infer a quality of the estimation from the behavior of the user, based on a manner in which the user interacts or attempts to interact with the functionality of the location based service. The feedback module then sends feedback of the inferred quality to the positioning algorithm.

Abstract: The invention relates to a system and methods for providing conditional access to indoor location information in a system comprising a mobile device (320), a positioning webservice (310) and an authorization authority (360), the method comprising: the mobile device (320) performing the steps of: transmitting license information to the authorization authority (360) and transmitting a request for indoor location information to the positioning webservice, the request comprising a request-location-estimate corresponding to a location estimate of the mobile device (320) at the time of making the request, the authorization authority (360) performing the steps of: receiving the license information, verifying whether the license information authorizes access to indoor location information by the mobile device (320), issuing a secure proof, verifiable by the positioning webservice (310) upon successful verification, the secure proof indicating that the license information authorizes access to indoor location informati

Abstract: A location system comprising: a location network comprising a plurality of reference nodes and at least one controller. Each reference node is operable to transmit a respective beaconing signal from which a respective measurement can be taken by a mobile device for use in determining a location of the mobile device. The at least one controller is configured to control whether and/or how often one or more signals of the location system are transmitted to be used in determining the location of the mobile device, the control being based on feedback from at least one determination of the location of the mobile device relative to the reference nodes.

Abstract: As at least part of a location network, there is provided a trigger node and multiple listening nodes. The trigger node wirelessly transmits a trigger signal to the mobile device, the trigger signal being configured to cause the mobile device to wirelessly emit a signal in response to receiving the trigger signal. The listening nodes listen for the response signal that was transmitted from the mobile device in response to the trigger signal, and thereby at each respective one of a plurality of the listening nodes that wirelessly receive the response signal from the mobile device, a respective measurement is taken of the response signal as received at the respective listening node, for use in performing a localization to determine the location of the mobile device based on one or more of these measurements.

Abstract: A system comprising a localization database mapping reference nodes to zones; and a localization module configured to determine a representative measurement based on a combination of measurements for the nodes of each zone (e.g. RSSIs), and to compare the representative measurements with one another in order to directly determine which one or more of the zones the mobile device belongs to. The system further comprises a lighting database mapping between lamps and zones, configured to receive an index of each of the one or more determined zones from the localization module, and based thereon to directly relate the one or more determined zones to one or more of the lamps in the lighting database; and a lighting access service configured to grant the mobile device with access to control of those lamps on condition of being related to the one or more determined zones by the lighting database.

Abstract: A location system comprising: a location network comprising a plurality of reference nodes and at least one controller. Each reference node is operable to transmit a respective beaconing signal from which a respective measurement can be taken by a mobile device for use in determining a location of the mobile device. The at least one controller is configured to control whether and/or how often one or more signals of the location system are transmitted to be used in determining the location of the mobile device, the control being based on feedback from at least one determination of the location of the mobile device relative to the reference nodes.

Abstract: A system comprising location server, a localization module and a node manager. The location server comprises a network interface operable to receive measurement reports submitted from a plurality of reference nodes of a location network, each measurement report reporting a measurement of a signal received by a respective one of the reference nodes from a respective one of one or more mobile devices. The localization module is configured to determine a location of one or more of the mobile devices based on at least some of the plurality of measurement reports. The node manager is configured to control whether and/or when one or more of the plurality of measurement reports are submitted from one or more of the reference nodes, in dependence on a measure of relevance to the determination of the location of one or more of the mobile devices.