This paper proposes a novel and statistical method of ability estimation based on acquisition distribution for a personalized computer aided question generation. This method captures the learning outcomes over time and provides a flexible measurement based on the acquisition distributions instead of precalibration. Compared to the previous studies, the proposed method is robust, especially when an ability of a student is unknown. The results from the empirical data show that the estimated abilities match the actual abilities of learners, and the pretest and post-test of the experimental group show significant improvement. These results suggest that this method can serves as the ability estimation for a personalized computer-aided testing environment.

UPS has also been testing drones for delivery, like this one on Children's Island in Marblehead, Mass. Tuesday, Orange Leaf Frozen Yogurt made its first frozen yogurt delivery to Hope College in Michigan, possibly the first drone delivery of frozen yogurt in the world. Taking froyo to new heights today... Stay tuned! The drone, which can reach speeds up to 30 miles-per-hour and carry up to 30 pounds, took 15 minutes to travel nearly a mile to the campus, WOOD TV8 reports. There, the company threw a party to celebrate the delivery.

One of the world's largest package delivery companies is stepping up efforts to integrate drones into its system. UPS has partnered with robot-maker CyPhy Works to test the use of drones to make commercial deliveries to remote or difficult-to-access locations. The companies began testing the drones on Thursday, when they launched one from the seaside town of Marblehead. The drone flew on a programmed route for 3 miles over the Atlantic Ocean to deliver an inhaler at Children's Island. The successful landing was greeted by jubilant shouts from CyPhy Works and UPS employees on the island to witness the test. "I thought it was fantastic," said John Dodero, UPS vice president for industrial engineering.

United Parcel Service (UPS) is newest competitor in the race to unleash the first fleet of delivery drones. The firm began testing the use of drones this week with a focus of bringing packages to remote or difficult-to-access locations. A mock delivery of urgent medical supplies was delivered from Beverly, Massachusetts to Children's Island as a test, which is the first drone delivery to be made by a major delivery firm in the US. United Parcel Service (UPS) is newest competitor in the race to unleash the first fleet of delivery drones. UPS announced today that it has begun testing the use of drones to make commercial deliveries of packages to remote or difficult-to-access locations, working together with drone-maker CyPhy Works.