Abstract: Data compression is a key part of database management systems for storage saving and performance enhancement. In column-oriented databases, records belong to the same attribute are stored ...

Abstract: With the increasing significance and usage of ordinary location-based services, a number of technologies have been invented for indoor positioning systems over the years. Some of them, ...

Kate Fox says Joe Ceccanti was the ‘most hopeful person’ before he started spending 12 hours a day with a chatbot On 7 August, Kate Fox received a phone call that upended her life. A medical examiner ...