摘要:
A location label may be determined for a portable electronic device. The location label may provide a textual indication of the particular location of a user of the portable electronic device, such as a restaurant name, or more generally a type of location of the user, such as simply a restaurant. The location label is determined based on a signature vector of operating environment characteristics of the portable electronic device. The operating environment characteristics may include sensor values, visible transmitters, radio connection information, executing applications or other operating environment characteristics that can have a value associated with them.
摘要:
A method, computing device and computer readable memory for cooperative localization of a portable electronic device is provided. Location identification messages are received each providing a known location of a respective portable electronic device and an associated transmitter identification (ID) of the respective portable electronic device and stored. Location request messages providing one or more transmitter IDs in communication range with a query portable electronic device and a transmitter ID of the query portable electronic device are received and location information from the stored location information associated with the one or more transmitter IDs received in the location request message is retrieved. A location of the query portable electronic device is estimated based on the retrieved location information and stored with the associated transmitter ID of the query portable electronic device.
摘要:
Methods and a system for mobile device activity classification or context determination. The device compresses and sends sensor data to a remote server together with a selected activity label during a training phase. The remote server receives labeled sensor data from a number of devices and generates a classification model. The model may be reduced to a subspace that represents the dominant model parameters. The subspace data structure, which may be a small matrix, is transmitted to the mobile device. The mobile device uses the subspace data structure to classify device activity as indicated by the device sensors. In one example, the sensor data is projected onto the subspace matrix, which results in estimates of state probabilities for the various predefined states, the dominant one of which is selected as the current state, or estimated state.
摘要:
A communications system includes a first device with a first display, and a first processor configured to generate at least one coded image according to a selectable encoding scheme from among different encoding schemes, and display the coded image on the first display. A first communications device is coupled to the first processor. A second device includes a second camera configured to capture the coded image on the first display, a second communications device, and a second processor coupled to the second camera and the second communications device. The second processor is configured to send a status message, via the second and first communications devices to the first processor, related to whether the captured coded image is decodable based upon a currently selected encoding scheme.
摘要:
A method performed on an electronic device for clustering personal electronically encoded items. Such items are clustered in response to one or more perspective directives from a user that are received by the device by creating one or more perspectives each representative of a personal area of user interest identified by the user. Responsive to one or more first clustering directives from the user, the system clusters one or more of the user's personal electronically encoded items with one or more of the created one or more perspectives and develops a probability model for managing the user's personal electronically encoded items based on the one or more perspective directives and the one or more first clustering directives.
摘要:
A method performed on an electronic device for migrating tags across entities. The migration of the tags is performed following an analysis of one or more personal electronically encoded items associated with a previously created perspective or album associated with the previously created perspective, responsive to a user decision the creation of a new perspective, a new album associated with one of the previously created perspectives, or a new perspective and a new album associated with the new perspective, responsive to a user decision to treat the previously created perspective or album as an individual entity, and association of the previously created perspective or album with the new perspective or new album. The tags are respectively migrated from the new perspective or the new album to the associated previously created perspective or the previously created album and to associated ones of the one or more personal electronically encoded items.
摘要:
A system and method for generating an m-dimensional signature vector in a computing device is provided. The signature vector may be generated from a plurality of key-value pairs, each comprising a unique identifier and an associated non-zero value. Each element of the m-dimensional signature vector is calculated based on a summation of a plurality of terms. Each of the terms is calculated from a respective key-value pair by generating a seed based on the key of the respective key-value pair and an element identifier associated with the vector element being calculated; generating a pseudo-random number from the generated seed; and multiplying the pseudo-random number by the value of the respective key-value pair, wherein m
摘要:
A method performed on an electronic device for creating a proposal to a user. The proposal is created from an analysis of one or more personal electronically encoded items associated with one or more previously created perspectives unique to a user with each of the previously created perspectives representative of user interest and is based on similarities determined from the analysis. The proposal includes the creation of a new perspective, a new album, or a new perspective and a new album associated with the new perspective and the association therewith of one or more of the one or more analyzed personal electronically encoded items. Responsive to user acceptance of the proposal, the system creates the new perspective, the new album, or the new perspective and the new album associated with the new perspective and associates therewith one or more of the one or more analyzed personal electronically encoded items.
摘要:
A system and method for generating an m-dimensional signature vector with aliasing across synonyms in a computing device is provided. Data representable by a plurality of key-value pairs, each comprising a unique identifier and an associated non-zero value of n-dimensional data is received at the computing device. Elements of the m-dimensional aliased signature vector are generated using synonym information of keys from the plurality of key-value pairs.
摘要:
Methods of predicting future connectivity of a portable electronic device is described along with systems and devices for implementing the methods. The method includes receiving an indication of a plurality of radio scenes detected at the portable electronic device at different reference times. Each of the plurality of radio scenes identifies transmitters and associated signal strength of signals received by the portable electronic device at the respective reference time. One or more connectivity predictions can be retrieved from a corpus of pairs of a composite signature vector and associated connectivity information. Each of the one or more connectivity predictions can be retrieved based on a similarity between the associated respective composite signature vector and a query composite signature vector. A future connectivity prediction of the portable electronic device can be provided based on the one or more retrieved connectivity predictions.