Abstract: A system and method of managing a cryptocurrency-based portfolio that facilitates the creation and/or redemption of exchange trade fund (ETF) tokens is provided. Additionally, the system and method allows a user to store multiple types of digital currencies on a single platform. A user is able to initiate a creation transaction that allows the user to exchange multiple types of digital currencies for ETF tokens. Similarly, a user is able to initiate a redemption transaction that allows the user to exchange ETF tokens for multiple types of digital currencies. The processed creation and/or redemption transactions are recorded and verified with a blockchain ledger which prevents any medication to the transactions. The ETF tokens include an exchange value which is continuously monitored and varies based on the market values of the multiple types of digital currencies. The user is able to trade and/or exchange the ETF tokens after the creation transaction.

Abstract: This disclosure describes systems, methods, and computer-readable media related to employing adaptive multi-feature semantic location sensing methods to estimate the semantic location of a mobile device. A set of wireless data scans associated with one or more access points at one or more locations may be received. One or more features of the one or more locations may be identified, based upon the set of wireless data scans wherein the features are associated with one or more location metrics. At least one of the one or more access points may be determined to be associated with a first location based upon, at least in part, the set of wireless data scans. A first classifier for the first location may be generated based upon, at least in part, the one or more features and the associated access points.