bAbI isn't really a "real" problem either, although somewhat better than sorting and the like. bAbI works with extremely restrictive worlds and grammar. In contrast, current speech recognition, language modeling, and object detection do quite well with actual audio, text, and pictures.
I think the strength of NTMs will be best demonstrated by putting it to work on a long-range language modeling task where you need to organize what you read so that you can use it to predict better a paragraph or two later. Current language models based on LSTM are not really able to do this.
I think the strength of NTMs will be best demonstrated by putting it to work on a long-range language modeling task where you need to organize what you read so that you can use it to predict better a paragraph or two later. Current language models based on LSTM are not really able to do this.