A Prototype of Speech Interface Based on the Google Cloud Platform to Access a Semantic Website
2. Related Work
3. Current Problems
- The Semantic Web presents a dynamic growth of the knowledge, based on formal logic. However, it is difficult for common users to access this because they have problems with the construction of the simplest queries .
- Linked data initiative encompass structured databases in the RDF data model (Resource Description Framework) from the Semantic Web. Even for expert users, it is quite complex to explore such heterogeneous data .
- An increment quantity of RDF information is issued like Linked Data, so a perceptible way to access those data becomes more important, but the most expressive queries fail to be represented nor answered .
- Voice recognition software has become more popular, especially on smartphones, which implies that it is needed to operate on the interpretation of Natural Language queries into formal queries .
- Conceptual Architecture Design. In this stage, the main components of our prototype are defined, identifying the different modules to be used in the development of the prototype.
- Ontology Building. From the knowledge of the main concepts of the study case, the construction of the ontology begins, using some known building methodology that includes the whole ontology development cycle.
- Prototype Implementation. For the implementation of the interface, some open source development environment will be used with the respective updated libraries.
- Adaptation of the Modules to the Prototype. In this stage, the three modules to be used in our prototype are integrated.
- Prototype Validation. In this stage, the operation of the prototype is validated by prior training of the interface with simple queries.
- Experimental Results. We begin to obtain various experimental results with the designed prototype. The first two experiments were conducted by the working group and the last experiment was conducted with the help of several users (a survey was done), several indicators were obtained that are presented in our work.
4. Implemented Architecture
4.1. Implementation of the Web Server Using the Semantic Web Tools
4.1.1. Knowledge Representation Module
4.1.2. Query Analysis Module
- Comparison criteria
- SPARQL Query
PREFIX table: <http://www.owl-ontologies.com/Ontology1370130534.owl#>
4.1.3. Web Interface
4.2. Implementation of the Speech—Query Module
4.2.1. Speech to Text Conversion (STT)
4.2.2. Text to Speech Conversion (TTS)
5. Experimental Results
- “The use of the interface was simple to learn”Agree|—|Neutral|—|Disagree,
- “Interact with the interface was a frustrating experience”Agree|—|Neutral|—|Disagree,
- “I think that the interface has all the potential I need”Agree|—|Neutral|—|Disagree,
- “I think that this interface is very pleasant to work”Agree|—|Neutral|—|Disagree.
Conflicts of Interest
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|Number of Queries||Number of Hits||Number of Failures||Percentage of Hits|
|Queries||Server Time (s)||Google Cloud Speech API (s)||Delay Time (s)||Total Time (s)|
|Find hotels in Lima||2.380||1.660||2.475||6.515|
|Find hotels in Piura||2.343||1.986||2.451||6.780|
|Find hotels in Ica||1.974||1.796||2.107||5.877|
|Find museums in Lima||0.217||2.126||2.405||4.748|
|Find museums in Piura||0.179||1.570||2.368||4.117|
|Find museums in Ica||0.278||2.127||2.466||4.871|
|Find hotels of 4 and 5 stars in Lima||1.498||2.381||1.707||5.586|
|Find hotels of 4 and 5 stars in Piura||2.374||2.490||2.496||7.360|
|Find hotels of 4 and 5 stars in Ica||2.273||1.924||2.449||6.646|
|Agree||Neutral||Disagree||Percentage of Agreements|
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Rosales-Huamaní, J.A.; Castillo-Sequera, J.L.; Montalvan-Figueroa, J.; Andrade-Choque, J. A Prototype of Speech Interface Based on the Google Cloud Platform to Access a Semantic Website. Symmetry 2018, 10, 268. https://doi.org/10.3390/sym10070268
Rosales-Huamaní JA, Castillo-Sequera JL, Montalvan-Figueroa J, Andrade-Choque J. A Prototype of Speech Interface Based on the Google Cloud Platform to Access a Semantic Website. Symmetry. 2018; 10(7):268. https://doi.org/10.3390/sym10070268Chicago/Turabian Style
Rosales-Huamaní, Jimmy Aurelio, José Luis Castillo-Sequera, Juan Carlos Montalvan-Figueroa, and Joseps Andrade-Choque. 2018. "A Prototype of Speech Interface Based on the Google Cloud Platform to Access a Semantic Website" Symmetry 10, no. 7: 268. https://doi.org/10.3390/sym10070268