Over the last week, I read a paper "Ensuring Distributed Accountability for Data Sharing in the Cloud" and spent time analysing it. I also researched and read another paper on De-Perimeterised Sharing of Data which also focuses on Self-Protecting Data.

Also, I have been busy working throughout the week on contributing a small part to another publication. I had to write a paragraph on my HeartBeat project and take a snapshot of my developed system so far. This is still a work in progress.

Also, I received an email this week from the book chapter reviewers regarding that my submitted book chapter had been accepted to be included in the book. I now have to make changes as per the reviewers comments and submit the final version by 15th March. So far, I have addressed most of the trivial comments such as removing a section, or renaming etc. I need time to work on the more non-trivial ones.

Regarding the HeartBeat system, I am now doing some light programming tasks to get ready for the programming of the security layer. I will start coding the security layer maybe next week. There is a lot of work to do here.

Last week, I spent time reading papers on ways a data owner can share his data in the Cloud while maintaining control over how his data is being used. Since data consumers may be untrusted and can send the data owner's data to friends via email or make illegal copies of the data which may not respect the privacy of the data owner, I am trying to incorporate ways a data owner can track how his data is being used. I read a paper entitled "A Software-Hardware Architecture for Self-Protecting Data" which combines an access control policy with the data which controls how the data is to be used. I will continue to read more papers along this path.

Regarding the app, I have successfully updated the Client application which reads the latest ECG and stores the ECG reading into a JPEG file for offline monitoring by a doctor or nurse. I have shown this to my supervisor and am now ready to implement the security layer for the app. I will spend 2-3 weeks on this. I will continue to post updates on this as they occur.

Yesterday, I just completed my probation and managed to pass. I was confused at some of the questions, but with the help of my supervisor, I was able to pass and continue my candidature. I need to keep reading and get a better understanding of my topic. I am now looking to provide better access control for the data owner in a distributed computing environment where the data owner may share data with other users in his group but control how his data is being used. I will be spending the next couple of weeks reading literature on this.

Meanwhile, regarding the ECG application, I have now managed to successfully get a clean ECG curve. The app now displays in real-time, an ECG waveform and also the heart rate of the person using the sensors. This was mainly a result of incorporating code from AliveTec. I spent the last week trying to understand their sample code and managed to successfully incorporate it into the app. I still need to incorporate this code into the client side application as well. I am also looking for ways to provide automated ECG analysis to automatically determine cardiac arrhythmias.

Over the last week, I researched ways to get a nice looking ECG curve into my app as well as the client application. I've struggled a bit to get electrocardiogram but I have been supplied with Java code from AliveTec to study how to get the curve. I will be spending time trying to read and deeply understand this code, so that I can incorporate it into the app. The current app shows a poor ECG signal and is illegible. I think I'm getting close to solving the problem. Will post updates as they occur..

Over the Christmas and New Year Holidays I have worked on fixing the journal and book chapter. I've worked with my supervisors to get better feedback after each revision. I have managed to submit the two papers to the publishers just in time yesterday. Feel relieved to finally finish all the writing.

This week, I am going to go back and focus on the project. I will need to find ways to get a clear ECG waveform from the Bluetooth device as well as try to classify the ECG waveform and determine irregular patterns and so on. Also, I will have to implement the secure data sharing algorithm from the journal paper into the prototype health application. I also plan on integrating more than one type of health device to make our application more generic. I also plan on incorporating the project into Springroo. Looking forward to the work to do this year!

Last week, I spent most of my time working on the journal. I made changes based on the feedback suggested by Rafa, Shiping and Surya to the best of my ability and have submitted a second version for review. The deadline is only 2.5 weeks away so I'm working really hard on this as well as the book chapter.
In regards to the book chapter, I have nearly completed the write-up. I need to fill in about 3 more pages which may take about a week or so. After this I will need to quickly finalise and send to my supervisors for feedback. This will be due a week after the journal so there is plenty of writing to do.
Also, I will submit the 3rd milestone "Extended Literature Review" by the end of this week as I believe I may have done enough. I will continue to post updates as they occur...

Journal publication
I have managed to successfully finish a first draft of the journal publication. I have received comments and feedback as well as corrections from Rafael and Shiping. Overall, I have made a good start but still need to make a number of improvements to the journal. I will be working on the journal through this week and next week to get a second draft out.

Book Chapter
The book chapter is progressing along well. I have nearly completed a first draft of the book chapter. So far, it's touching on 14 pages without diagrams with 83 references. I've spent this week writing the key management and data sharing sections. I still have a lot of reading to do as I don't believe I have enough literature reading. My goal is to reach near 20 pages with ~100 references. The remainder of this week will be spent adding diagrams, tidying up, adding a conclusion and catching up on reading. The next week I will spend reading more literature and adding them into the book chapter before I send the final draft to my supervisors.

HeartBeat ECG System 
Although I haven't been spending too long on this, I am still looking into developing an automated analysis of ECG data for the HeartBeat system. I have read the thesis although I am struggling a bit to get my head around it. I am still yet to understand the MIT-BIH ECG data. I need to put a bit more time and effort into this and will work on it during next week.

Probation Milestones
I am currently working on writing an extended and modified literature review as per the requirements of the PhD probation. At the moment, it is not too dissimilar to the book chapter and is still a work-in-progress.