Application programming interfaces (API) Applications programming interfaces 5 Semantics 5 Deep neural networks 4 Acoustic noise 3 Audiovisual speech recognition 3 Cloud-based 3 Computer architecture 3 End to end 3 Google+ 3 Learning technology 3 Lip reading 3 MicroSoft 3 Multilayer neural networks 3 Multimodal Interaction 3 Network architecture 3 Performance 3 Signal to noise ratio 3 Speech 3 Speech recognition 3 application programming interface 3 audio-visual speech recognition 3 deep neural networks 3 lip-reading 3 multi-modal interaction 3 Big data 2 Data handling 2 High level languages 2 Internet of things 2 Interoperability 2