11. A system with a platform for building a dialog-state specific multi-turn contextual language understanding system for an application, the system comprising: at least one processor; and a memory for storing and encoding computer executable instructions that, when executed by the at least one processor is operative to: receive information from a builder for authoring a combined single-shot language understanding system based on a combination of a machine learned single-shot model and single-shot rules, wherein the information includes any slots and entities necessary for performing a task in one turn of a dialog; form the combined single-shot language understanding system based on the information, wherein the combined single-shot language understanding system includes a machine learned single-shot language understanding model and a the single-shot rules; adapt the combined single-shot language understanding system for dialog-state dependent decoding to form an adapted combined single-shot language understanding model; implement the adapted combined single-shot language understanding model to form the dialog-state specific multi-turn contextual language understanding system; and analyze a received utterance from a user with the dialog-state specific multi-turn contextual language understanding system.
11. A system with a platform for building a dialog-state specific multi-turn contextual language understanding system for an application, the system comprising: at least one processor; and a memory for storing and encoding computer executable instructions that, when executed by the at least one processor is operative to: receive information from a builder for authoring a combined single-shot language understanding system based on a combination of a machine learned single-shot model and single-shot rules, wherein the information includes any slots and entities necessary for performing a task in one turn of a dialog; form the combined single-shot language understanding system based on the information, wherein the combined single-shot language understanding system includes a machine learned single-shot language understanding model and a the single-shot rules; adapt the combined single-shot language understanding system for dialog-state dependent decoding to form an adapted combined single-shot language understanding model; implement the adapted combined single-shot language understanding model to form the dialog-state specific multi-turn contextual language understanding system; and analyze a received utterance from a user with the dialog-state specific multi-turn contextual language understanding system. 12. The system of claim 11 , wherein adapting the combined single-shot language understanding system for dialog-state dependent decoding comprises: constrain a decoding of the machine learned single-shot language understanding model to output only dialog-state specific slots and dialog-state specific entities for at least one determined dialog-state based on a dialog-state dependent semantic schema; and process the single-shot rules and the dialog-state dependent semantic schema to derive or to provide a capability to derive dialog-state dependent rules to tag the dialog-state specific slots and the dialog-state specific entities for the at least one determined dialog-state or another determined dialog-state.