Abstract: For location-based communication with mobile devices, a set of callee conditions is received at a caller's device, which has to be satisfied by a callee according to information descriptive of a condition of the callee. The state information is distinct from the location and a time of the callee's presence at the location. An evaluation is made that each device associated with each potential callee in a first subset has been present at the location at a specified time, and that each potential callee in the first subset satisfies the set of callee conditions. At the caller's device, an instruction is received for making a telecommunication call to a device of a potential callee in a first subset. The call is initiated from the caller's device to mobile devices associated with the first subset of potential callees.

Abstract: For location-based communication with mobile devices, a set of callee conditions is received at a caller's device, which has to be satisfied by a callee according to information descriptive of a condition of the callee. The state information is distinct from the location and a time of the callee's presence at the location. An evaluation is made that each device associated with each potential callee in a first subset has been present at the location at a specified time, and that each potential callee in the first subset satisfies the set of callee conditions. At the caller's device, an instruction is received for making a telecommunication call to a device of a potential callee in a first subset. The call is initiated from the caller's device to mobile devices associated with the first subset of potential callees.

Abstract: A method, system, and computer program product for scalable and self-healing architecture for client-server operations in transient connectivity conditions are provided in the illustrative embodiments. An application in a second system receives a request from a first system, the request requesting data from a type of service. A first response responds to the request. The request is queued in a service queue corresponding to the type of the service, to make the request available to a third system that provides the type of the service. A notification is received that a second response from the third data processing system has been posted into a session specific queue, the second response being responsive to the request. In response to another request received from the first system, a third response is sent to the first system, the third response including the data from the second response from the session specific queue.

Abstract: A dynamic data distribution system allows publication of data values for hierarchical keys (paths) and subscriptions to key (path) patterns which include wildcard characters. Permission to publish or subscribe is controlled by an access control list associated with each key. An agent receives a publication request from a client, verifies client access permissions on the subject key, and transmits the publication to a data storage server which performs the write. Following a successful write, the agent forwards the publication to a message routing exchange which routes the publication to the session queue for all clients that are permitted to receive the publication and have subscribed to a key pattern matching this publication. For data synchronization, the data storage server assigns a virtual time stamp to each write, and the subscriber verifies the count of updates received for a subscription within a sliding window of virtual time stamps.

Abstract: To provide client-side fault-tolerance in a publish-subscribe system, a message is received on a channel from a server. At a function executing using a processor and a memory, a determination is made whether the message contains a heartbeat data. When the message contains the heartbeat data, a determination is made whether a content signature contained in the message matches a last known content signature saved from a previous message. When the content signature contained in the message does not match the last known content signature saved from a previous message, a refresh message is sent to the channel.

Abstract: A computer-implemented method includes receiving user data from a plurality of data sources, where the user data describes a user. A plurality of events are determined within the user data by applying anomaly detection to the user data. A request to authenticate the user is received. A key event is selected from among the plurality of events, responsive to the request to authenticate the user. For the user, a challenge is generated, by a computer processor, based on the key event and responsive to the request to authenticate the user. A response to the challenge is received. It is decided whether to authenticate the user based on the response to the challenge.

Abstract: A mechanism is provided in a data processing system comprising a processor and a memory wherein the memory comprises instructions which are executed by the processor to cause the processor to be specifically configured to implement a user interface and a cognitive text analysis engine for intelligent copy-and-paste. In response to a user performing a copy-and-paste operation via the user interface to copy a text snippet from a source context and paste the text snippet into a target context, the cognitive text analysis engine analyzes the source context, the text snippet, and the target context to identify key elements. The cognitive text analysis engine identifies elements that are present in the source context and the text snippet but not present in the target context. The user interface highlights the identified elements within text snippet pasted into the target context.

Abstract: Each of a plurality of stations has a respective sequence of tracks of Internet content of common subject matter and a respective play pointer indicating a location in the sequence of tracks. In response to a first input, the presentation mode of the station is configured in a continuous play mode in which the play pointer is progressed through the sequence of tracks queued to the station regardless of whether or not the station is presently selected for presentation. In response to a second input, the presentation mode is configured in a pause play mode in which the play pointer is progressed through the sequence of tracks queued to the station only while the station is selected for presentation to a user and otherwise pauses progression of the play pointer. The processor transmits tracks of the station and progresses the play pointer in accordance with the configured presentation mode.

Abstract: Disclosed embodiments provide an approach for sharing media items between mobile devices that are in proximity to one another. A device ID is generated and shared with nearby devices. Media items are uploaded to a data server and then sent from the data server to other devices that request them based on a shared device ID. Users do not need to know each other or be connected to each other in any social media sense, and yet can still share media items. Thus, disclosed embodiments provide a new level of crowd-sourced coverage of an event based on sharing of media items.

Abstract: To manage channel ownership in a publish-subscribe data processing environment, a determination is made at a first server that a subscription request from a client relates to a channel, the channel having a channel identifier. At an exchange component in a messaging middleware, a session queue associated with the client is bound to the channel. A mandatory delivery message is configured to be routed using a publisher identifier by the exchange component, the publisher identifier being related to the channel identifier. The mandatory delivery message is communicated from the first server to the exchange component to indicate an intent of the first server to become a publisher of the channel. The mandatory delivery message causes the channel ownership of the channel to be limited to a single publisher.

Abstract: For location-based communication with mobile devices, a set of callee conditions is received at a caller's device, which has to be satisfied by a callee according to information descriptive of a condition of the callee. The state information is distinct from the location and a time of the callee's presence at the location. An evaluation is made that each device associated with each potential callee in a first subset has been present at the location at a specified time, and that each potential callee in the first subset satisfies the set of callee conditions. At the caller's device, an instruction is received for making a telecommunication call to a device of a potential callee in a first subset. The call is initiated from the caller's device to mobile devices associated with the first subset of potential callees.

Abstract: Disclosed embodiments provide an approach for sharing media items between mobile devices that are in proximity to one another. A device ID is generated and shared with nearby devices. Media items are uploaded to a data server and then sent from the data server to other devices that request them based on a shared device ID. Users do not need to know each other or be connected to each other in any social media sense, and yet can still share media items. Thus, disclosed embodiments provide a new level of crowd-sourced coverage of an event based on sharing of media items.

Abstract: To manage channel ownership in a publish-subscribe data processing environment, a determination is made at a first server that a subscription request from a client relates to a channel, the channel having a channel identifier. At an exchange component in a messaging middleware, a session queue associated with the client is bound to the channel. A mandatory delivery message is configured to be routed using a publisher identifier by the exchange component, the publisher identifier being related to the channel identifier. The mandatory delivery message is communicated from the first server to the exchange component to indicate an intent of the first server to become a publisher of the channel. The mandatory delivery message causes the channel ownership of the channel to be limited to a single publisher.

Abstract: To manage channel ownership in a publish-subscribe data processing environment, a determination is made at a first server that a subscription request from a client relates to a channel, the channel having a channel identifier. At an exchange component in a messaging middleware, a session queue associated with the client is bound to the channel. A mandatory delivery message is configured to be routed using a publisher identifier by the exchange component, the publisher identifier being related to the channel identifier. The mandatory delivery message is communicated from the first server to the exchange component to indicate an intent of the first server to become a publisher of the channel. The mandatory delivery message causes the channel ownership of the channel to be limited to a single publisher.

Abstract: Disclosed embodiments provide an approach for sharing media items between mobile devices that are in proximity to one another. A device ID is generated and shared with nearby devices. Media items are uploaded to a data server and then sent from the data server to other devices that request them based on a shared device ID. Users do not need to know each other or be connected to each other in any social media sense, and yet can still share media items. Thus, disclosed embodiments provide a new level of crowd-sourced coverage of an event based on sharing of media items.

Abstract: A computer-implemented method includes receiving user data from a plurality of data sources, where the user data describes a user. A plurality of events are determined within the user data by applying anomaly detection to the user data. A request to authenticate the user is received. A key event is selected from among the plurality of events, responsive to the request to authenticate the user. For the user, a challenge is generated, by a computer processor, based on the key event and responsive to the request to authenticate the user. A response to the challenge is received. It is decided whether to authenticate the user based on the response to the challenge.

Abstract: A dynamic data distribution system allows publication of data values for hierarchical keys (paths) and subscriptions to key (path) patterns which include wildcard characters. Permission to publish or subscribe is controlled by an access control list associated with each key. An agent receives a publication request from a client, verifies client access permissions on the subject key, and transmits the publication to a data storage server which performs the write. Following a successful write, the agent forwards the publication to a message routing exchange which routes the publication to the session queue for all clients that are permitted to receive the publication and have subscribed to a key pattern matching this publication. For data synchronization, the data storage server assigns a virtual time stamp to each write, and the subscriber verifies the count of updates received for a subscription within a sliding window of virtual time stamps.

Abstract: Disclosed embodiments provide an approach for sharing media items between mobile devices that are in proximity to one another. A device ID is generated and shared with nearby devices. Media items are uploaded to a data server and then sent from the data server to other devices that request them based on a shared device ID. Users do not need to know each other or be connected to each other in any social media sense, and yet can still share media items. Thus, disclosed embodiments provide a new level of crowd-sourced coverage of an event based on sharing of media items.

Abstract: Disclosed embodiments provide an approach for sharing media items between mobile devices that are in proximity to one another. A device ID is generated and shared with nearby devices. Media items are uploaded to a data server and then sent from the data server to other devices that request them based on a shared device ID. Users do not need to know each other or be connected to each other in any social media sense, and yet can still share media items. Thus, disclosed embodiments provide a new level of crowd-sourced coverage of an event based on sharing of media items.

Abstract: To manage channel ownership in a publish-subscribe data processing environment, a determination is made at a first server that a subscription request from a client relates to a channel, the channel having a channel identifier. At an exchange component in a messaging middleware, a session queue associated with the client is bound to the channel. A mandatory delivery message is configured to be routed using a publisher identifier by the exchange component, the publisher identifier being related to the channel identifier. The mandatory delivery message is communicated from the first server to the exchange component to indicate an intent of the first server to become a publisher of the channel. The mandatory delivery message causes the channel ownership of the channel to be limited to a single publisher.