Here is the presentation material for HoloLens + Microsoft Cognitive Services, presented at San Francisco Bay Area Azure on Feb 21, 2018.
PPTX: http://wakeupandcode.com/public_downloads/HoloLens-CognitiveServices.pptx
Slideshare: http://www.slideshare.net/shahedC3000/cloudbacked-mixed-reality-with-hololens-azure-cognitive-services