to effectively analyze this kind of information is now seen as a key competitive advantage to better inform decisions. In order to do so, organizations employ Sentiment Analysis (SA) techniques on these data. However, the usage of social media around the world is ever-increasing, which considerably accelerates massive data generation and makes traditional SA systems unable to deliver useful insights. Such volume of data can be efficiently analyzed using the combination of SA techniques and Big Data technologies. In fact, big data is not a luxury but an essential necessary to make valuable predictions. However, there are some challenges associated with big data such as quality that could highly affect the SA systems’ accuracy that use huge volume of data. Thus, the quality aspect should be addressed in order to build reliable and credible systems. For this, the goal of our research work is to consider Big Data Quality Metrics (BDQM) in SA that rely of big data. In this paper, we first highlight the most eloquent BDQM that should be considered throughout the Big Data Value Chain (BDVC) in any big data project. Then, we measure the impact of BDQM on a novel SA method accuracy in a real case study by giving simulation results.

1. Module 1
Introduction of Big Data

2. What is Big Data?
Large
datasets, complex and changeable
Cannot be stored, managed, and processed
adequately by traditional software management
and software tools.

3. Solutions?
• Relying on the Technology that handle , process
and analyze large quantities of data.
Types of Solutions:
• Structured
• Multi-Structured
• Unstructured

4. The need of Big Data…
• In social networking, media and commerce sites, data
growth increasing exponentially and so on for the future.
Analyzing and managing these data properly is the key to
business expansion and growth.

5. Data Creation
• Every Year, the
world created
• more and more Zeta
bytes of data
• Managing this data
became crucial to
extract more value
in retail, finance,
media and
publishing.

6. Challenges

7. • Hadoop later on came as the
answer of software framework
that would support technologies,
tools and infrastructure and also
more effective and efficient
management and analysis of
large datasets.
• Hadoop tools and services
working together in completing
its tasks, forming a Hadoop
ecosystem.

8. • Primary component:
• HDFS – Distrubuted file system for storage
• MapReduce –Parallel processing
framework
Typical Hadoop eco-system project might use
• ZooKeeper –Coordination framework
• Hive – SQL-like inferface for querying
• Pig – High level scripting language for
batch processing and ETL
• Hbase – Tabular/column storage (non-
relational, distribution database)
• Flume – Distribution, reliable, service for
collecting,aggregating,
and moving large data
Ecosystem Component

9. Big Data’s Characteristic
Volume
Variety
Velocity
Complexity
Validity

10. Stored Data
Processing
- Batch-based stored
- Real-Time Data-stream processing

11. Batch Based Stored Data Processing
• Process large volumes of data
• Can be periodic or one-time processing
• Batch results are produced after data is
collected, entered and processed
• Separate techniques or programs for input,
processing and output

12. Real Time Data Processing
•Data captured, processed, and
acted 24/7
•Computing data real-time
• Advantages of Real-time:
System scales elastically based on need
Instant Results
Parallel processing is available

13. Tools and Techniques for analyzing
big Data
The choice of tools mostly driven by:
Who is going to use the data
+
the business requirement for a particular
scenario

14. While traditional RDBMSs has many limitations, Big Data provide
alternatives address some of these limitations.
HDFS
Sqoop
Database alternatives:
• Document Stores – Apache CouchDB, MongoDB
• Graph stores –Neo4j
• Key-Value Stores –Apache Cassandra, Riak
• Tabular stores –Apache Hbase

15. Accessing the Big Data
• SQL like connectivity initiates for big data: Impala, Hive and Stinger
Other NoSQL BI Tools: Datameer, Karmasphere and Platfora
• These big data later can be used in:
-Sandboxes for data science projects
-Analytics development using map reduce
-Analytics-query performance enablers
-Search indexes on multi structured data in Hadoop
- Analyzing multi structured Big data Using search
- Data visualization and in memory data in big data enviroment

16. Considering Using big Data
Is your scenario really require a Big Data
Solution?
Does the solution need to handle data
variety?
Does the solution require ability to deal
with high data velocity?
Does the solution handle high data
volume?
Can the solution handle complexity?
How can you optimize the solution?

17. Case
Study:
Social
Media
Analytics
Using people’s history on internet, what they buy, what they search giving a rough view
of attitude on a product.
More, these output can be used to study:
customer satisfaction, churn prediction, financial performance, stock performance.

18. Hourglass
Is a framework that it much easier to write
incremental Hadoop jobs to perform
computation efficiently

19. Sekian
dan terima kasih