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Assignment2
Cluster and Cloud Computing Assignment 2 –
Australian City Analytics
Background
In development and delivery of non-trivial software systems, working as part of a team is generally
(typically!) the norm. This assignment is very much a group project. Students will be put into
software teams to work on the implementation of the system described below. These will be teams
of up to 5 students. In this assignment, students need to organize their team and their collective
involvement throughout. There is no team leader as such, but teams may decide to set up processes
for agreeing on the work and who does what. Understanding the dependencies between individual
efforts and their successful integration is key to the success of the work and for software
engineering projects more generally.
Assignment Description
The software engineering activity builds on the lecture materials describing Cloud systems and
especially the NeCTAR Research Cloud and its use of OpenStack; on the Twitter APIs, and CouchDB
and the kinds of data analytics (e.g. MapReduce) that CouchDB supports as well as data from the
Australian Urban Research Infrastructure Network (AURIN – https://portal.aurin.org.au). The focus
of this assignment is to harvest as many tweets as possible from across the cities of Australia on the
NeCTAR Research Cloud and undertake a variety of social media data analytics scenarios that tell
interesting stories of life in your cities and importantly how the Twitter data can be used
alongside/compared with/augment the data available within the AURIN platform to improve our
knowledge of life in the cities of Australia. Teams are expected to download data from the AURIN
platform and include this into their CouchDB database for analysis with Twitter data.
The teams should develop a Cloud-based solution that exploits a multitude of virtual machines
(VMs) across the NeCTAR Research Cloud for harvesting tweets through the Twitter APIs (using
both the Streaming and the Search API interfaces). The teams should produce a solution that can be
run (in principle) across any node of the NeCTAR Research Cloud to harvest and store tweets. Teams
have been allocated four medium sized VMs with 8 cores (32Gb memory total) and up to 250Gb of
volume storage and 100Gb of object storage. All students have access to the NeCTAR Research Cloud
as individual users and can test/develop their applications using their own (small) VM instances.
(Remembering that there is no persistence in these small, free and dynamically allocated VMs).
The solution should include a Twitter harvesting application for any/all of the cities of Australia. The
teams are expected to have multiple instances of this application running on the NeCTAR Research
Cloud together with an associated CouchDB database containing the amalgamated collection of
Tweets from the harvester applications. The CouchDB setup may be a single node or a replicated
setup. A key aspect of this is in removing duplicate tweets, i.e. the system should be designed such
that duplicate tweets will not arise.
Teams are also expected to develop a range of analytic scenarios, e.g. using the MapReduce
capabilities offered by CouchDB for their allocated city. All teams must support sentiment analysis
of their city, e.g. searching for tweets containing positive sentiments (happy, ecstatic, …), negative
sentiments (unhappy, terrible, …) or emoticons like ;o), :o), :), or :o(, >:o( etc and establishing
whether people are happier in the morning or in the night time or if there are parts of their cities
that are happier than others. Correlating such data with AURIN data should be supported. Teams
should actively explore more advanced solutions for sentiment analysis rather than simple term
searching, e.g. not happy is a negative sentiment. In addition to this sentiment analysis scenario,
teams should explore other scenarios based on their cities using the AURIN data. Teams are
encouraged to be creative here. A prize will be awarded for the most interesting scenarios identified!
For example teams may look at scenarios such as:
● Which suburb has the most tweeters and does this correlate with what we might expect from
the population demographic of the suburb from AURIN, e.g. more young people live in a
given area so we might expect a proportionate increase in the number of tweets (assuming
young people tweet more)?
● Does the different languages used when tweeting correlate with the cultures we would
expect to find in those areas, e.g. more Chinese live in Box Hill in Melbourne hence we would
expect to see for tweets tagged as Chinese from those suburbs, or Italians in Carlton etc?
● Are people happier (express more positive sentiment) in areas with more wealth?
● Is there a correlation between crime related tweets and official crime statistics across the
suburbs of Melbourne?
● Is there a correlation between alcohol related tweets and locations of places to buy alcohol
(bottleshops)?
● Does language use, e.g. vulgar words used in Twitter happen more or less in wealthy or poor
areas?
The above are examples – students may decide to create their own analytics based on the data they
obtain. Students are not expected to build advanced “general purpose” data analytic services that
can support any scenario, but show how tools like CouchDB with targeted data analysis capabilities
like MapReduce when provided with suitable inputs can be used to capture the essence of life in a
city. Teams are encouraged to combine twitter data with AURIN data and potentially other data of
relevance to the city, e.g. information on weather, sport events, TV shows, visiting celebrities, stock
market rise/falls etc.
The result of the assignment will be a fully populated instance (singular) of a CouchDB with a range
of data analytics stories associated with the selected cities. A front-end web application is required
for visualising these data sets/scenarios.
For the implementation teams are recommended to use a commonly understood language across
team members – most likely Java or Python. Information on building and using Twitter harvesters
can be found on the web, e.g. see https://dev.twitter.com/ and related links to resources such as
Tweepy and Twitter4J. Teams are free to use any pre-existing software systems that they deem
appropriate for the analysis. This can include sentiment analysis libraries, gender identification
libraries, and machine learning systems as well as front-end Javascript libraries and visualisation
capabilities, e.g. Googlemaps.
Error Handling
Issues and challenges in using the NeCTAR Research Cloud for this assignment should be
documented. You should describe in detail the limitations of mining twitter content and language
processing (e.g. sarcasm). You should outline any solutions developed to tackle such scenarios.
Removing duplicates of tweets should be handled. The database may however contain re-tweets.
You should demonstrate how you tackled working within the quota imposed by the Twitter APIs
through the use of the Cloud. You should describe how your system was designed to be robust and
provide any degrees of fault tolerance.
Final packaging and delivery
You should collectively write a team report on the application developed and include the
architecture, the system design and the discussions that lead into the design. You should describe
the role of the team members in the delivery of the system and where the team worked well and
where issues arose and how they were addressed. The team should illustrate the functionality of the
system through a range of scenarios and explain why you chose the specific examples. Teams are
encouraged to write this report in the style of a paper than can ultimately be submitted to a
conference/journal.
Each team member is also expected to complete a confidential report on their role in the project and
the experiences in working with their individual team members. This will be handed in separately to
the final team report. (This is not to be used to blame people, but to ensure that all team members
are able to provide feedback and to ensure that no team has any member that does nothing!!!).
The length of the team report is not fixed. Given the level of complexity of the assignment and total
value of the assignment a suitable estimate is a report in the range of 20-25 pages. A typical report
will comprise:
● A description of the system functionalities, the scenarios supported and why, together with
graphical results, e.g. pie-charts/graphs of Tweet analysis and snapshots of the web
apps/maps displaying certain Tweet scenarios;
● A simple user guide for testing (including system deployment and end user invocation/usage
of the systems);
● System design and architecture and how/why this was chosen;
● A discussion on the pros and cons of the NeCTAR Research Cloud and tools and processes for
image creation and deployment;
● Teams should also produce a video of their system that is uploaded to YouTube (these videos
can last longer than the NeCTAR deployments unfortunately!)
It is important to put your collective team details (team, city, names, surnames, student ids) in:
● the head page of the report;
● as a header in each of the files of the software project.
Individual reports describing your role and your teams contributions should be handed in
separately.
Implementation Requirements
Teams are expected to use:
● a version-control system such as GitHub for sharing source code.
● MapReduce based implementations for analytics where appropriate, using CouchDB’s built
in MapReduce capabilities. You may also consider using Hadoop/Spark for this task if
desired.
● The entire system should have scripted deployment capabilities. This means that your team
will provide a script, which, when executed, will create and deploy the virtual machines and
orchestrate the set up of all necessary software on said machines (e.g. CouchDB, the twitter
harvesters, web servers etc.) to create a ready-to-run system. Note that this setup need not
populate the database, but demonstrate your ability to orchestrate the necessary software
environment on the NeCTAR Research Cloud. Teams should use Ansible
(http://www.ansible.com/home) for this task.
● The server side of your analytics web application may expose its data to the client through a
ReSTful design. Authentication or authorization is NOT required for the web front end.
Teams are also encouraged to describe:
● How fault-tolerant is your software setup? Is there a single point-of-failure?
● Can your application and infrastructure dynamically scale out to meet demand?
Deadline
One copy of the team assignment is to be submitted through the LMS. The zip file must be named
with your team, i.e.
Individual reports describing your role and your teams contributions should be submitted via
PRAZE on the LMS. These individual reports will be completion of web based forms and not
Word/PDF documents etc.
The deadline for submitting the team assignment is: Thursday 11th May (by 1pm!).
Marking
The marking process will be structured by evaluating whether the assignment (application + report)
is compliant with the specification given. This implies the following:
● A working demonstration of the Cloud-based solution with dynamic deployment – 25%
marks
● A working demonstration of tweet harvesting and CouchDB utilization for specific analytics
scenarios – 25% marks
● Detailed documentation on the system architecture and design – 20%
● Report and write up discussion including pros and cons of the NeCTAR Research Cloud and
supporting twitter data analytics – 20% marks
● Proper handling of the errors and removal of duplicate tweets – 10% marks
The (confidential) assessment by your peers in your team on PRAZE will be used to weight your
individual scores accordingly.
Timeliness in submitting the assignment in the proper format is important. A 10% deduction per
day will be made for late submissions.
Demonstration Schedule and Venue
The student teams are required to give a presentation (with a few slides) and a demonstration of the
working application. This should include the key Twitter analytics scenarios supported as well the
design and implementation choices made. Each team has up to 15 minutes to present their work.
This will take place on Thursday 11th May (12 teams present) and 18th May (12 teams
present). Note that given the numbers of teams this year, not all teams will be able to present
– however all teams should be prepared to present on 11th May!!! I will randomly identify a
team on the day (using a random number generator for fairness!!!)
As a team, you are free to develop your system(s) where you are more comfortable with (at home,
on your PC/laptop, in the labs…) but obviously the demonstration should work on the NeCTAR
Research Cloud.
