Abstract: A method implemented by a data processing system for processing records with a dataflow graph that includes transmitting the records over a dataflow of the dataflow graph and transmitting, among the records, information, associated with the processing of the records, over the same dataflow without modifying the records. The information can include trace data describing how the records are being processed.

Abstract: The present invention provides systems and methods for facilitating the creation and management of marketing campaigns, as well as the delivery of advertisements associated with those campaigns. Some embodiments provide a Mobile Marketing Platform (“MMP”) configured to determine an audience profile based on received marketing campaign information (e.g., delivery time, demographic information, ad copy). The determined audience profile describes a market segment that is expected or predicted to respond positively to the marketing campaign. The MMP then receives an indication that a particular user is accessing a resource (e.g., content item, Web site, mobile application). The MMP then compares the attributes of the user (e.g., demographics, location, device type) with multiple stored audience profiles and select the audience profile that best matches the user and his associated attributes. The MMP then serves an advertisement of the marketing campaign associated with the selected audience profile.

Abstract: A rear light warning system for vehicles to indicate to drivers of trailing vehicles that the leading vehicle is slowing down, moving slow or stopping to reduce the likelihood of rear-end collisions. The system has rearwardly illuminating warning lights attached to the rear of the vehicle, a speed sensor and an integrated circuit, all of which are independent of the brake or accelerator pedals. The speed sensor determines the relative speed of the vehicle and the integrated circuit compares the electrical signal with that for a predetermined minimum base speed level. If the vehicle is traveling at less than the base speed level, then the warning lights are activated. The speed sensor can determine the relative speed by measuring the rotation of the wheel, rotation of an inner cable in a mechanical speedometer cable, a signal from an electronic speedometer or sensing a reflective wavelength off the ground.