Abstract: A variable checkpoint mechanism in a streams manager checkpoints a streaming application based on periodic time periods for checkpoints. The variable checkpoint mechanism can take a checkpoint early before a periodic time period ends or late after the periodic time period ends based on predicted size of one or more tuple windows in the streaming application. The time for taking the checkpoint can be selected based on multiple checkpoint timing criteria, which include storage requirement for the checkpoint and predicted backpressure in the flow graph. In this manner the checkpoint timing of the variable checkpoint mechanism can be adjusted real-time to minimize the negative impact of checkpointing on the performance of the streaming application.

Abstract: A variable checkpoint mechanism in a streams manager checkpoints a streaming application based on periodic time periods for checkpoints. The variable checkpoint mechanism can take a checkpoint before a periodic time period ends when a spike is coming, or can take a checkpoint after the periodic time period ends when there is backpressure in a consistent region of the streaming application. When there is no anticipated spike coming and when there is no backpressure in a consistent region of the streaming application, the checkpoint is performed at the normal end of the periodic time period for checkpoints. In this manner the checkpoint timing of the variable checkpoint mechanism can be adjusted real-time to minimize the negative impact of checkpointing on the performance of the streaming application.

Abstract: A method and system are provided for implementing user configurable probing with magnetic connections and printed circuit board (PCB) features. A first magnet is located at a desired probe point on the PCB, a probe having a second magnet of suitable polarity and an electrical contact is moved to the probe point. The first and second magnets attract each other, and the probe point makes electrical contact with an electrical conductor at the probe point.

Abstract: A system and method for selecting a speech-to-text engine are disclosed. The method includes selecting, by an engine selection component, at least two speech-to-text engines to decode a portion of computer-readable speech data. The portion of speech data can be decoded simultaneously by the selected speech-to-text engines for a designated length of time. In some embodiments portions of the speech data can be simultaneously decoded with selected speech-to-text engines at periodic intervals. An accuracy of decoding can be determined for each selected speech-to-text engine by an accuracy testing component. Additionally, the relative accuracies and speeds of the selected speech-to-text engines can be compared by an output comparison component. The engine selection component can then select the most accurate speech-to-text engine accurate to decode a next portion of speech data. Further, the engine selection module may select a speech-to-text engine that meets or exceeds a speed and/or accuracy threshold.

Abstract: A streaming application processes data by processing tuples via operators. Bottleneck operators are identified. A degree of streaming speed is maintained, even when non-bottleneck operators participate in increased resiliency operations.

Abstract: Embodiments herein describe RFID systems that include multiple RFID tag readers that each use a different frequency to communicate with an RFID tag. For example, each of the tag readers may transmit a tag query command using different modulated frequencies. In one embodiment, the RFID tag includes multiple receivers each tuned to one of the different frequencies generated by the tag readers. For example, one receiver in the tag is tuned to receive 200 MHz signals while another receiver is tuned to receive 900 MHz signals. To provide location information, the RFID tag compares power values associated with the received signals to determine which of the RFID tag readers is closest to the tag. The RFID tag conveys this location information to the tag readers by selecting one of the frequencies of the tag readers to use when generating a reply message.

Abstract: Aspects of the disclosure relate to managing code origination data for a distributed computing environment having a set of compute nodes which includes a first compute node. A first set of code origination data which corresponds to a first computing object may be detected for utilization to develop a distributed application in the distributed computing environment. Using the first set of code origination data, the first compute node may be identified to host the first computing object for the distributed application. The first computing object may be deployed to the first compute node to develop the distributed application.

Abstract: Aspects of the disclosure relate to managing code origination data for a stream computing environment. A first set of code origination data which corresponds to a first computing object and a second set of code origination data which corresponds to a second computing object may be detected for utilization to develop a streaming application in the stream computing environment. Based on the first and second sets of code origination data, a code assembly arrangement with respect to the first and second computing objects may be determined. The code assembly arrangement may be established with respect to the first and second computing objects to develop the streaming application.

Abstract: Embodiments of the present disclosure provide methods and apparatus for providing feed forward equalization to a communication line by providing a resistance and a capacitance to the communication line. The method includes determining the resistance based on a desired value of feed forward equalization to provide to a communication line, determining the capacitance based on the desired value of feed forward equalization to provide to the communication line, providing a layer of resistive material between a first conductor and a second conductor of the communication line, wherein a dimension of the layer of resistive material is determined based on the determined resistance and providing a layer of dielectric material between the first conductor and the second conductor, wherein a dimension of the layer of dielectric material is determined based on the determined capacitance.

Abstract: Embodiments herein describe RFID systems that include multiple RFID tag readers that each use a different frequency to communicate with an RFID tag. For example, each of the tag readers may transmit a tag query command using different modulated frequencies. In one embodiment, the RFID tag includes multiple receivers each tuned to one of the different frequencies generated by the tag readers. For example, one receiver in the tag is tuned to receive 200 MHz signals while another receiver is tuned to receive 900 MHz signals. To provide location information, the RFID tag compares power values associated with the received signals to determine which of the RFID tag readers is closest to the tag. The RFID tag conveys this location information to the tag readers by selecting one of the frequencies of the tag readers to use when generating a reply message.

Abstract: Embodiments herein describe RFID systems that include multiple RFID tag readers that each use a different frequency to communicate with an RFID tag. For example, each of the tag readers may transmit a tag query command using different modulated frequencies. In one embodiment, the RFID tag includes multiple receivers each tuned to one of the different frequencies generated by the tag readers. For example, one receiver in the tag is tuned to receive 200 MHz signals while another receiver is tuned to receive 900 MHz signals. To provide location information, the RFID tag compares power values associated with the received signals to determine which of the RFID tag readers is closest to the tag. The RFID tag conveys this location information to the tag readers by selecting one of the frequencies of the tag readers to use when generating a reply message.

Abstract: Aspects of the disclosure relate to managing a set of warning data with respect to a development phase in a computing environment. In embodiments, the computing environment may include a distributed computing environment or a stream computing environment. The set of warning data may be detected with respect to the development phase. In embodiments, the set of warning data may be used to develop an application. By analyzing the set of warning data, a relationship between the set of warning data and a component of the application may be identified. In embodiments, the component of the application may include a computing artifact or a computing object. An indication of the relationship between the set of warning data and the component of the application may be provided for utilization to develop the application.

Abstract: Aspects of the disclosure relate to using a set of warning data to manage distributed development of an application in a computing environment. In embodiments, the computing environment may include a distributed computing environment or a stream computing environment. A first portion of the application may be developed by a first user. A second portion of the application may be received by the first user. The second portion of the application may be compiled and developed by a second user. Based on the set of warning data, a curative action for utilization to develop the application may be formulated. The curative action may be carried-out to develop the application.

Abstract: Aspects of the disclosure relate to managing a set of warning data with respect to an execution phase in a computing environment. In embodiments, the computing environment may include a distributed computing environment or a stream computing environment. The set of warning data may be detected with respect to the execution phase. In embodiments, the set of warning data may be coupled with a computing artifact. In embodiments, the computing artifact may include a compilation which has a computing object in association with the set of warning data. Using the set of warning data, an execution action which pertains to the computing artifact may be determined. In embodiments, the execution action may include a code deployment to a set of computing units, a run-time check modification, or a process attribute modification. The execution action which pertains to the computing artifact may be performed.

Abstract: Aspects of the disclosure relate to managing a set of warning data with respect to a compilation phase in a computing environment. In embodiments, the computing environment may include a distributed computing environment or a stream computing environment. The set of warning data may be detected with respect to the compilation phase. By analyzing the set of warning data, it may be identified that the set of warning data relates to a computing object. In embodiments, the computing object may include a set of implementation code. The set of warning data may be established in association with the computing object.

Abstract: An optical electromagnetic radiation (EM) emitter and receiver are located upon a printed circuit board (PCB) layer and are connected to an optical security pathway. A predetermined reference flux is determined, the reference flux being the expected EM transmitted by the optical security pathway and received by the receiver. When the PCB is subject to an unauthorized access thereof (e.g., drilled, sawed, cut, etc.), the optical EM transferred by optical security pathway is altered. An optical monitoring device that monitors the flux of the optical EM received by the receiver detects a change in flux, in relation to the reference flux, and passes a tamper signal to one or more computer system devices to respond to the unauthorized access. For example, one or more cryptographic adapter card or computer system functions or secured crypto components may be disabled.

Abstract: Disclosed aspects relate to stream operator management. A stream operator may be analyzed with respect to a set of usage indicators. The stream operator may operate on a computer processor and correspond to a processing element for processing a stream of tuples. Based on analyzing the stream operator, a set of profile data for the stream operator may be determined. The set of profile data for the stream operator may be established for utilization to develop a streaming application.

Abstract: Embodiments of the present disclosure provide methods and apparatus for providing feed forward equalization to a communication line by providing a resistance and a capacitance to the communication line. The method includes determining the resistance based on a desired value of feed forward equalization to provide to a communication line, determining the capacitance based on the desired value of feed forward equalization to provide to the communication line, providing a layer of resistive material between a first conductor and a second conductor of the communication line, wherein a dimension of the layer of resistive material is determined based on the determined resistance and providing a layer of dielectric material between the first conductor and the second conductor, wherein a dimension of the layer of dielectric material is determined based on the determined capacitance.

Abstract: A variable checkpoint mechanism in a streams manager checkpoints a streaming application based on periodic time periods for checkpoints. The variable checkpoint mechanism can take a checkpoint early before a periodic time period ends or late after the periodic time period ends based on predicted size of one or more tuple windows in the streaming application. The time for taking the checkpoint can be selected based on multiple checkpoint timing criteria, which include storage requirement for the checkpoint and predicted backpressure in the flow graph. In this manner the checkpoint timing of the variable checkpoint mechanism can be adjusted real-time to minimize the negative impact of checkpointing on the performance of the streaming application.

Abstract: Embodiments of the present disclosure provide methods and apparatus for providing feed forward equalization to a communication line by providing a resistance and a capacitance to the communication line. The method includes determining the resistance based on a desired value of feed forward equalization to provide to a communication line, determining the capacitance based on the desired value of feed forward equalization to provide to the communication line, providing a layer of resistive material between a first conductor and a second conductor of the communication line, wherein a dimension of the layer of resistive material is determined based on the determined resistance and providing a layer of dielectric material between the first conductor and the second conductor, wherein a dimension of the layer of dielectric material is determined based on the determined capacitance.