Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On Addressing Practical Challenges for RNN-Transducer   In this paper, several works are proposed to address practical challenges for
deploying RNN Transducer (RNN-T) based speech recognition system. These
challenges are adapting a well-trained RNN-T model to a new domain without
collecting the audio data, obtaining time stamps and confidence scores at word
level. The first challenge is solved with a splicing data method which
concatenates the speech segments extracted from the source domain data. To get
the time stamp, a phone prediction branch is added to the RNN-T model by
sharing the encoder for the purpose of force alignment. Finally, we obtain
word-level confidence scores by utilizing several types of features calculated
during decoding and from confusion network. Evaluated with Microsoft production
data, the splicing data adaptation method improves the baseline and adaptation
with the text to speech method by 58.03% and 15.25% relative word error rate
reduction, respectively. The proposed time stamping method can get less than
50ms word timing difference from the ground truth alignment on average while
maintaining the recognition accuracy of the RNN-T model. We also obtain high
confidence annotation performance with limited computation cost.

3
The categories of this paper are: physics
18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int