A Convolutional Neural Network for Search Term Detection
This addresses the challenge of pathfinding in hospitals for patients, visitors, and employees, but it is incremental as it applies an existing method (CNN) to a specific domain.
The paper tackles the problem of accurate detection of origin and destination search terms in voice queries for indoor hospital navigation by proposing a custom convolutional neural network (CNN), achieving performance improvements compared to Levenshtein distance-based word matching.
Pathfinding in hospitals is challenging for patients, visitors, and even employees. Many people have experienced getting lost due to lack of clear guidance, large footprint of hospitals, and confusing array of hospital wings. In this paper, we propose Halo; An indoor navigation application based on voice-user interaction to help provide directions for users without assistance of a localization system. The main challenge is accurate detection of origin and destination search terms. A custom convolutional neural network (CNN) is proposed to detect origin and destination search terms from transcription of a submitted speech query. The CNN is trained based on a set of queries tailored specifically for hospital and clinic environments. Performance of the proposed model is studied and compared with Levenshtein distance-based word matching.