Developing Mobile Applications using Web-Based Data

Presentation of my undergraduate engineering thesis at the Australia China Council Workshop on Developing Mobile Health Applications Using Web Data in Beijing, China.

Transcript

1. Developing Mobile Applications with Web-Based Data A presentation by Harrison Sweeney University of Western Australia
2. Developing Mobile Applications with Web-Based Data An Application of Information Extraction A presentation by Harrison Sweeney University of Western Australia
3. University of Western Australia Mechatronic Engineering Supervised by Wei Liu Who am I?
4. • Develop a semantic database of simplified medical information • Develop proof of concept mobile application for symptom queries • Use modular and flexible methods for re-use with alternative sources of data What is the aim?
5. • Scarcity of medical information for general consumption • Difficult to find reliable medical information online • Educational tool contributing to greater community care • Improve general health literacy Why is this needed?
6. What does the system look like? Initial Data Graph Construction Visualisation Mobile App Pre-Processing Graph DB
7. What does the system look like? MySQL DB Graph Construction Visualisation Mobile App Pre-Processing Graph DB
8. Where is the data from?
9. 1,885 conditions 1,749 drugs 1,049 symptoms What form is the initial data in?
10. What form is the initial data in? 1,885 conditions 1,749 drugs 1,049 symptoms
11. What form is the initial data in? Property Data Type ID integer Symptom string General Description text Causes csv Related Symptoms csv Symptom Structure
12. Demonstration
13. What does the system look like? MySQL DB Graph Construction Visualisation Mobile App Pre-Processing Graph DB
14. How is the data processed? for  each  primary  symptom: for  each  related  symptom: for  each  symptom: if  symptom  ==  related  symptom: add  relation  to  the  table Simplified Pseudocode • Extraction of symptom relation information • Combination of NLP and fuzzy string matching
15. What does the system look like? MySQL DB Graph Construction Visualisation Mobile App Pre-Processing Graph DB
16. How is the graph database constructed? Neo4j Graph DB MySQL Tables Related Symptoms Primary Symptoms Python Script
17. What does the system look like? MySQL DB Graph Construction Visualisation Mobile App Pre-Processing Graph DB
18. What does the graph database look like? related to Abdominal Cancer Abdominal Pain Cancer type of Pain type of
19. What does the graph database look like?
20.  How do you query the graph database? Neo4j Graph DB Cypher Query  Objective C Python  Java  REST API
21. How do you query the graph database? Example Cypher Query START  n=node(*)   MATCH  n-­‐[r]-­‐m   WHERE  n.type  ='symptom' WITH  n,  count(m)  as  degree RETURN  n,  degree,  n.name   ORDER  BY  degree
22. Demonstration
23. What does the system look like? MySQL DB Graph Construction Visualisation Mobile App Pre-Processing Graph DB
24. How does the mobile application work?   Graph DB Mobile Application Cypher Query JSON Response
25. Demonstration
26. • Taxonomy of ‘symptoms’ • Signs • Symptoms • Conditions • Conflict resolution with ‘conditions’ table • Hierarchical symptom relationships and relationship pruning What problems are there?
27. Symptom Taxonomy an objective indication of some medical fact or characteristic that may be detected by a physician during a physical examination or by a clinical scientist by means of an in vivo examination of a patient the subjective experiences, such as fatigue, that patients might report to their examining physician an illness or abnormality in the body that interferes with a person's usual activities or feeling of wellbeing Sign Symptom Condition (Disease)
28. Differentiating symptoms and conditions related to Abdominal Cancer Pain 1 nodes 32 nodes 861 nodes 31 nodes related to
29. Differentiating symptoms and conditions related to Abdominal Cancer Pain 1 nodes 32 nodes 861 nodes 31 nodes related to Condition Symptom
30. Demonstration
31. Hierarchical Symptom Trees related to Abdominal Cancer Abdominal Pain Cancer type of Pain type of related to
32. Hierarchical Symptom Trees related to Abdominal Cancer Abdominal Pain Cancer type of Pain type of related to
33. • Addition of further data sources • Extraction of information from Wikipedia • Addition of body part relations What is the future work?
34. Thank you