Contextual Slot Carryover for Disparate Schemas

Abstract

In the slot-filling paradigm, where a user can refer back to slots in the context during a conversation, the goal of the contextual understanding system is to resolve the referring expressions to the appropriate slots in the context. In large-scale multi-domain systems, this presents two challenges - scaling to a very large and potentially unbounded set of slot values, and dealing with diverse schemas. We present a neural network architecture that addresses the slot value scalability challenge by reformulating the contextual interpretation as a decision to carryover a slot from a set of possible candidates. To deal with heterogenous schemas, we introduce a simple data-driven method for trans- forming the candidate slots. Our experiments show that our approach can scale to multiple domains and provides competitive results over a strong baseline.

arXiv commentAccepted at Interspeech 2018

References in corpus (3)

• Adam: A Method for Stochastic Optimization
• Just ASK: Building an Architecture for Extensible Self-Service Spoken Language Understanding
• Sequential Dialogue Context Modeling for Spoken Language Understanding

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• Adjusting Image Attributes of Localized Regions with Low-level Dialogue
• Improving Long Distance Slot Carryover in Spoken Dialogue Systems
• Cross-Lingual Approaches to Reference Resolution in Dialogue Systems
• 5IDER: Unified Query Rewriting for Steering, Intent Carryover, Disfluencies, Entity Carryover and Repair
• Leveraging External Knowledge for Out-Of-Vocabulary Entity Labeling