What are the QA systems and why we need them and how to implement them?

1. Question Answering System
Alireza Torabian

2. Content
QA System
HumanResource
Problems Conclusion
ReferencesNeural
Network

3. QA System
QA System
HR
Problems
Neural
Network
Conclusion References 1

4. QA System
▶︎ AutoResponderwithNormalHumanLanguage
▶︎ Answer based on Knowledge Bases
▶︎ InformationRetrievalTechnologyandNaturalLanguageProcessing
QA System
HR
Problems
Neural
Network
Conclusion References 2

5. QA System
QA System
HR
Problems
Neural
Network
Conclusion References 3

6. HumanResourceProblems
Lack of
Full-time
HR
Low
Speed
FatigueHigh
Cost
QA System
HR
Problems
Neural
Network
Conclusion References 4

7. 5

8. Neural Network
▶︎Machinelearningmethods
▶︎Predictoutput
▶︎InspiredbythenaturalNN
▶︎Hugenumberofneurons
QA System
HR
Problems
Neural
Network
Conclusion References 6

9. RecurrentNeuralNetwork
(RNN)
QA System
HR
Problems
Neural
Network
Conclusion References 7

10. LSTM
QA System
HR
Problems
Neural
Network
Conclusion References 8
LSTM CellRNN Cell

11. LSTM
QA System
HR
Problems
Neural
Network
Conclusion References 9
Information (State) Transmission Chain

12. LSTM
New input effect
QA System
HR
Problems
Neural
Network
Conclusion References 10

13. LSTM
QA System
HR
Problems
Neural
Network
Conclusion References 11
Calculate new information

14. LSTM
QA System
HR
Problems
Neural
Network
Conclusion References 12
Forget last and add new information

15. LSTM
QA System
HR
Problems
Neural
Network
Conclusion References 13
Calculate output

16. Seq2Seq Model
Encoder
Decoder
<END>
QA System
HR
Problems
Neural
Network
Conclusion References 14

17. Attention Mechanism
w1 w2 w3 w4 w5
LSTM
Bidirectional
LSTM
QA System
HR
Problems
Neural
Network
Conclusion References 15

18. Conclusion
QA System
HR
Problems
Neural
Network
Conclusion References 16
▶︎ Automated QA System
▶︎ Need QA Systems
▶︎ RNN
▶︎SequencetoSequenceModel
▶︎ Attention Mechanism

19. References
[1] A. Andrenucci, E. Sneiders, “Automated question answering: review of the main
approaches” (2005)
[2] Ilya Sutskever, Oriol Vinyals, Quoc V. Le, “Sequence to Sequence Learning with
Neural Networks” (2014)
[3] https://towardsdatascience.com/introduction-to-sequence-models-rnn-
bidirectional-rnn-lstm-gru-73927ec9df15
[4] https://github.com/ematvey/tensorflow-seq2seq-tutorials/blob/master/1-
seq2seq.ipynb
[5] http://colah.github.io/posts/2015-08-Understanding-LSTMs/
QA System
HR
Problems
Neural
Network
Conclusion References 17

21. Thank You