Andrei Dancus

A processing technique is provided for determining a refined attribute of a network address based on one or more other attributes. A network address associated with a source device in communication with a network is observed. One or more first attributes of the network address are determined, where the one or more first attributes indicate at least a spatial or temporal property of the network address. The one or more first attributes are processed to determine a second attribute to be… Show more

A processing technique is provided for determining a refined attribute of a network address based on one or more other attributes. A network address associated with a source device in communication with a network is observed. One or more first attributes of the network address are determined, where the one or more first attributes indicate at least a spatial or temporal property of the network address. The one or more first attributes are processed to determine a second attribute to be associated with the network address, where the second attribute indicates whether the network address is a fixed or mobile network address, or is a proxy or non-proxy network address. A record is stored that maintains the association between the second attribute and the network address. Show less

A mapping/translation technique is provided for generating an association between an observed network address and one or more attributes that are not directly observed. A network address is observed that is associated with a source device. A first attribute is determined, the first attribute being a directly observed attribute. The first attribute is mapped to a second attribute based on at least a predefined spatial, temporal, or identity-related correspondence between the first attribute and… Show more

A mapping/translation technique is provided for generating an association between an observed network address and one or more attributes that are not directly observed. A network address is observed that is associated with a source device. A first attribute is determined, the first attribute being a directly observed attribute. The first attribute is mapped to a second attribute based on at least a predefined spatial, temporal, or identity-related correspondence between the first attribute and the second attribute, wherein the second attribute was not directly observed in connection with the network address. An association is generated between the second attribute and the network address. A record that maintains the association between the second attribute and the network address is stored. Show less

In one embodiment, a filtering technique is provided for ensuring data quality of network address observations. A network address observation is obtained of a network address associated with a source device, the network address observation associating the network address with one or more directly observed attributes. The network address observation is filtered based on a comparison of a selected one of the one or more directly observed attributes to a predetermined criteria, and using a result… Show more

In one embodiment, a filtering technique is provided for ensuring data quality of network address observations. A network address observation is obtained of a network address associated with a source device, the network address observation associating the network address with one or more directly observed attributes. The network address observation is filtered based on a comparison of a selected one of the one or more directly observed attributes to a predetermined criteria, and using a result of the comparison as indicative of whether the network address observation should be used for association of the network address with one or more directly observed attributes. The filtering either associates one or more indicators with the network address observation, or removes the network address observation. A network address to attribute association system executed on one or more electronic devices stores a record that maintains any network address observation that has not been removed and any indicator. Show less

In one embodiment, a technique is provided for detecting that a wireless beacon is pathological. Data points captured by mobile devices or specialized scanning devices are received at software executing on an electronic device, each data point containing information about beacon attributes. A set of disjoint regions are defined in one or more dimensions and each data point is associated with a corresponding region based on at least one element of the information of the data point lying within… Show more

In one embodiment, a technique is provided for detecting that a wireless beacon is pathological. Data points captured by mobile devices or specialized scanning devices are received at software executing on an electronic device, each data point containing information about beacon attributes. A set of disjoint regions are defined in one or more dimensions and each data point is associated with a corresponding region based on at least one element of the information of the data point lying within the boundaries of the corresponding region. An aggregate attribute is determined for each region based on the information of data points associated with the corresponding region. Then the aggregate attribute of one or more regions is used to determined whether the wireless beacon is pathological, and if determined to be pathological, the wireless beacon is excluded from use by a beacon-based positioning system. Show less

In one embodiment, techniques approximate concurrent monitoring of a large number of geo-fences, potentially beyond a number supported by a mobile device, The mobile device may obtain a set of geo-fences and maintain a first subset of the geo-fences as an active subset of geo-fences and a second subset of the geo-fences as an inactive subset of geo-fences. The mobile device may also establish and monitor an envelope geo-fences that excluded the inactive subset of geo-fence. In response to… Show more

In one embodiment, techniques approximate concurrent monitoring of a large number of geo-fences, potentially beyond a number supported by a mobile device, The mobile device may obtain a set of geo-fences and maintain a first subset of the geo-fences as an active subset of geo-fences and a second subset of the geo-fences as an inactive subset of geo-fences. The mobile device may also establish and monitor an envelope geo-fences that excluded the inactive subset of geo-fence. In response to detecting that the mobile device has moved to a new location proximate to the envelope geo-fence, one or more geo-fences are moved between the active subset of geo-fences and the inactive subset of geo-fences to produce a new active subset of geo-fences and a new inactive subset of geo-fences. Show less

In one embodiment, techniques approximate concurrent monitoring of a large number of geo-fences, potentially beyond a number supported by a mobile device, The mobile device may activate a subset of geo-fences to be monitored, the subset of geo-fences selected from the set of geo-fences based on proximity to a current location of the mobile device. The mobile device may also establish and monitor an envelope geo-fence that encompasses the subset of geo-fences. In response to detecting that the… Show more

In one embodiment, techniques approximate concurrent monitoring of a large number of geo-fences, potentially beyond a number supported by a mobile device, The mobile device may activate a subset of geo-fences to be monitored, the subset of geo-fences selected from the set of geo-fences based on proximity to a current location of the mobile device. The mobile device may also establish and monitor an envelope geo-fence that encompasses the subset of geo-fences. In response to detecting that the mobile device has moved to a new location proximate to the envelope geo-fence, a new subset of geo-fences is activated to be monitored. Geo-fences of the subset of geo-fences that are not part of the new subset of geo-fences are deactivated. Show less

In one embodiment, a system determines a designated wireless device lacks a fixed geographic location, and uses the determination that the designated wireless device lacks a fixed geographic location to improve location estimates. The system determines one or more neighboring wireless devices have relationships with the designated wireless device, wherein a relationship is established when wireless signals from a neighboring wireless device and the designated wireless device are detected by a… Show more

In one embodiment, a system determines a designated wireless device lacks a fixed geographic location, and uses the determination that the designated wireless device lacks a fixed geographic location to improve location estimates. The system determines one or more neighboring wireless devices have relationships with the designated wireless device, wherein a relationship is established when wireless signals from a neighboring wireless device and the designated wireless device are detected by a same receiver. A measure of likelihood is calculated that the designated wireless device lacks a fixed geographic location based at least in part on a number of the relationships or a duration of the relationships. Based on the measure of likelihood, the designated wireless device is excluded from being used in the wireless positioning system as a beacon for estimating the location of a client device. Show less

In one embodiment, techniques are provided for efficiently selecting and distributing wireless local area network (WLAN) access point (AP) data to a mobile client device. A reference database is maintained on a network server. An expected future location of the mobile client device is determined. The expected future location represents a location different than a present location of the mobile client device, which the mobile client device is expected to visit in the future. One or more tiles… Show more

In one embodiment, techniques are provided for efficiently selecting and distributing wireless local area network (WLAN) access point (AP) data to a mobile client device. A reference database is maintained on a network server. An expected future location of the mobile client device is determined. The expected future location represents a location different than a present location of the mobile client device, which the mobile client device is expected to visit in the future. One or more tiles are transferred from the reference database to the mobile client device for a bounded geographic region that includes the expected future location. The one or more tiles are stored on the mobile client device to be available for use in satisfying one or more subsequently received requests for estimation of location of the mobile device. Show less

In one embodiment, techniques approximate use of geo-fences of shapes and/or sizes other than those natively support by a mobile device. Upon receiving an initial geo-fence (e.g., a non-supported geo-fence), the mobile device may generate a group of geo-fences (e.g., a group of supported geo-fences) whose union approximates the initial geo-fence, where the group includes one or more geo-fences. The mobile device may treat the group of supported geo-fence as an equivalent to the non-supported… Show more

In one embodiment, techniques approximate use of geo-fences of shapes and/or sizes other than those natively support by a mobile device. Upon receiving an initial geo-fence (e.g., a non-supported geo-fence), the mobile device may generate a group of geo-fences (e.g., a group of supported geo-fences) whose union approximates the initial geo-fence, where the group includes one or more geo-fences. The mobile device may treat the group of supported geo-fence as an equivalent to the non-supported geo-fence. When the mobile device crosses one of the supported geo-fences of the group of supported geo-fences, and does not enter into another supported geo-fence of the group of supported geo-fences, a notification may be sent to an application that utilizes the non-supported geo-fence that the non-supported geo-fence has been triggered. Show less

Method of and systems for assigning estimated positions and attributes to wireless access points in a positioning system are disclosed. A method of estimating a characteristic of a wireless beacon includes receiving a set of data points. Each data point contains information about characteristics of a wireless beacon. The method also includes dividing at least one dimension into a set of regions in which each region of the set has region boundaries that do not overlap with other regions. The… Show more

Method of and systems for assigning estimated positions and attributes to wireless access points in a positioning system are disclosed. A method of estimating a characteristic of a wireless beacon includes receiving a set of data points. Each data point contains information about characteristics of a wireless beacon. The method also includes dividing at least one dimension into a set of regions in which each region of the set has region boundaries that do not overlap with other regions. The method further includes associating each data point with one corresponding region based on at least one element of the information of the data point lying within the boundaries of the corresponding region and determining an aggregate characteristic for each region based on the information of the data points associated with the corresponding region. The method estimates a characteristic of the wireless beacon based on at least one aggregate characteristic. Show less

Methods of and systems for measuring beacon stability of wireless access points are provided. A method of determining a measure of likelihood that a designated wireless device exhibits at least one pathological characteristic includes determining a set of reference points associated with a designated wireless device, and retrieving attributes of the reference points, attributes associated with other wireless devices related to the designated wireless device, and/or statistical information. The… Show more

Methods of and systems for measuring beacon stability of wireless access points are provided. A method of determining a measure of likelihood that a designated wireless device exhibits at least one pathological characteristic includes determining a set of reference points associated with a designated wireless device, and retrieving attributes of the reference points, attributes associated with other wireless devices related to the designated wireless device, and/or statistical information. The statistical information includes a temporal distribution of detection of signals of reference points, a spatial distribution of the reference points, and/or a cardinality of the set or a subset of the reference points. The method further includes determining a measure of likelihood that the designated wireless device exhibits at least one pathological characteristic based on attributes of the reference points, attributes associated with the reception of signals, and/or the statistical information. Show less

SVE management software uses management software running at a central service processor to control storage virtualization engines operating in a plurality application programming interface (API) that allows a consistent control of all SVE facilities by means of a set of API commands. The management software controls a dispatch module that translates the commands into appropriate instructions for the SVE nodes and communicates with the remote SVE nodes by a plurality of node client-node server… Show more

SVE management software uses management software running at a central service processor to control storage virtualization engines operating in a plurality application programming interface (API) that allows a consistent control of all SVE facilities by means of a set of API commands. The management software controls a dispatch module that translates the commands into appropriate instructions for the SVE nodes and communicates with the remote SVE nodes by a plurality of node client-node server pairs that transfer instructions from the dispatch module to the remote nodes and transfer requested information back from the remote nodes to the dispatch module. Various interfaces, such as a command line interpreter and a CIM provider can be built using the API commands. Show less