Big Data Analytics: Challenges And Applications For Text, Audio, Video, And Social Media Data

International Journal on Soft Computing, Artificial Intelligence and Applications (IJSCAI), Vol.5, No.1, February 2016
DOI :10.5121/ijscai.2016.5105 41
BIG DATA ANALYTICS: CHALLENGES AND
APPLICATIONS FOR TEXT, AUDIO, VIDEO, AND
SOCIAL MEDIA DATA
Jai Prakash Verma
1
, Smita Agrawal
1
, Bankim Patel
2
and Atul Patel
3
1
CSE Department, Institute of Technology, Nirma University, Ahmedabad
2
SRIMCA, UKA Trasadia University, Surat
3
CMPICA, CHARUSAT University, Changa
ABSTRACT
All types of machine automated systems are generating large amount of data in different forms like
statistical, text, audio, video, sensor, and bio-metric data that emerges the term Big Data. In this paper we
are discussing issues, challenges, and application of these types of Big Data with the consideration of big
data dimensions. Here we are discussing social media data analytics, content based analytics, text data
analytics, audio, and video data analytics their issues and expected application areas. It will motivate
researchers to address these issues of storage, management, and retrieval of data known as Big Data. As
well as the usages of Big Data analytics in India is also highlighted.
KEYWORDS
Big Data, Big Data Analytics, Social Media Analytics, Content Based Analytics, Text Analytics, Audio
Analytics, Video Analytics.
1. INTRODUCTION
The term big data is used to describe the growth and the availability of huge amount of structured
and unstructured data. Big data which are beyond the ability of commonly used software tools to
create, manage, and process data within a suitable time. Big data is important because the more
data we collect the more accurate result we get and able to optimize business processes. The Big
data is very important for business and society purpose. The data came from everywhere like
sensors that used to gather climate information, available post or share data on the social media
sites, video movie audio etc. This collection of data is called ―BIG DATA‖.
Now a days this big data is used in multiple ways to grow business and to know the world [1,2,
15].
In most enterprise scenarios the data is too big or it moves too fast or it exceeds current
processing capacity. Big data has the potential to help companies improve operations and make
faster, more intelligent decisions. Big data usually includes data sets with sizes beyond the ability
of commonly used software tools to capture, curate, manage, and process data within a tolerable
elapsed time. Big data is a set of techniques and technologies that require new forms of
integration to uncover large hidden values from large datasets that are diverse, complex, and of a
massive scale. Wal-Mart handles more than 1 million customer transaction every hour. Facebook
handles 40 billion photos from its user base. Big data require some technology to efficiently
process large quantities of data. It use some technology like, data fusion and integration, genetic
algorithms, machine learning, and signal processing, simulation, natural language processing,
time series Analytics and visualization [12,13,16]

42
1.1. Characteristics of Big Data:-
Volume: Many factors contribute to the increase in data volume. Transaction-based data stored
through the years. Unstructured data streaming in from social media. Increasing amounts of
sensor and machine-to-machine data being collected. In the past, excessive data volume was a
storage issue. But with decreasing storage costs, other issues emerge, including how to determine
relevance within large data volumes and how to use analytics to create value from relevant data
[10, 12,13, 15,16].
Velocity: Data is streaming in at unprecedented speed and must be dealt with in a timely manner.
RFID tags, sensors and smart metering are driving the need to deal with torrents of data in near-
real time. Reacting quickly enough to deal with data generation speed is a challenge for most
organizations.
Variety: Data today comes in all types of formats. Structured, numeric data in traditional
databases. Information created from line-of-business applications. Unstructured text documents,
email, video, audio, stock ticker data and financial transactions. Managing, merging and
governing different varieties of data is something many organizations still grapple with.
Variability: In addition to the increasing velocities and varieties of data, data flows can be highly
inconsistent with periodic peaks. Daily, seasonal and event-triggered peak data loads can be
challenging to manage. Even more so with unstructured data involved.
Complexity: Today's data comes from multiple sources. And it is still an undertaking to link,
match, cleanse and transform data across systems. However, it is necessary to connect and
correlate relationships, hierarchies and multiple data linkages or your data can quickly spiral out
of control.
Value: It includes how we can use this big data for enhancing the business and living style. We
know that different types of business or social application generate different types of data. Still
identifying values form Big Data in their application areas is a big issue.
2. BIG DATA ANALYTICS
Big Data Anlytics refers to the process of collecting, organizing, analyzing large data sets to
discover different patterns and other useful information. Big data analytics is a set of
technologies and techniques that require new forms of integration to disclose large hidden values
from large datasets that are different from the usual ones, more complex, and of a large enormous
scale. It mainly focuses on solving new problems or old problems in better and effective ways
[12,13, 15, 16].
The main goal of the big data analytic is to help organization to make better business
decision,future prediction, analysis large numbers of transactions that done in organization and
update the form of data that organization is used. Example of big data Analytics are big online
business website like Flipkart, snapdeal uses Facebook or Gmail data to view the customer
information or behaviour. Analyzing big data allows analysts, researchers, and business users to
make better and faster decisions using data that was previously inaccessible or unusable. Using
advanced analytics techniques such as text analytics, machine learning, predictive analytics, data
mining, statistics, and natural language processing, businesses can analyze previously untapped
data sources independent or together with their existing enterprise data to gain new insights
resulting in significantly better and faster decisions. It helps us to uncover hidden patterns,
unknown correlations, market trends, customer preferences etc. It leads us to more effective
marketing, revenue opportunities, better customer service etc. Big Data can be analyzed through

43
predictive analytics, text analytics, statistical analytics and data mining[1,2,4]. Types of big data
analytics are: Prescriptive: - This type of analytics help to decide what actions should be taken. It
very valuable but not used largely. It focuses on answer specific question like, hospital
management, diagnosis of cancer patients, diabetes patients that determine where to focus
treatment. Predictive: - This type of analytics help to predict future or what might be happen. For
example some companies use predictive analytics to take decision for sales, marketing,
production, etc. Diagnostic: - In this type look at past and analyze the situation what happen in
past and why it happen. And how we can overcome this situation. For example weather
preadiction, customer behavioral analysis etc. Descriptive:-It describes what is happening
currently and prediction near future. For example market analysis, compatains behavioral
analysis etc.
By using appropriate analytics organization can increase sales, increase customer service, and can
improve operations. Predictive Analytics allow organizations to make better and faster decisions
[1, 2, 4, 10].
2.1. Predictive Analytics
Predictive Analytics is a method through which we can extract information from existing data
sets to predict future outcomes and trends and also determine patterns. It does not tell us what
will happen in future. It forecasts what might happen in future with acceptable level of reliability.
It also includes what if-then-else scenarios and risk assessment. Applications areas of Predictive
Analytics are [1, 2, 4, 10]:
CRM (Customer Relationship Management): Predictive analytics is useful in CRM in fields such
as marketing campaigns, sales, customer services etc. The focus is to put their efforts effectively
on analyzeing product in demand and predict customer’s buying habits .
Clinical Decision Support: Predictive Analytics helps us to determine that which patients are at
risk of developing certain conditions like diabetes, asthma, lifetime illness etc.
Collection Analytics: Predictive Analytics helps financial institutions for the allocation for
collecting resources by identifying most effective collection agencies, contact strategies etc. to
each customer.
Cross Sell: An Organization that offers multiple products, Predictive Analytics can help to
analyze customer’s spendings, their behavior etc. This can help to lead cross sales that means
selling additional products to current customers.
Customer Retention: As the number of competing services is increasing, businesses should
continuously focus on maintaining customer satisfaction, rewarding loyal customers and
minimize customer reduction. If Predictive Analytics is properly applied, it can lead to active
retention strategy by frequently examining customer’s usage, spending and behavior patterns.
Direct marketing: When marketing consumer products and services, there is the challenge of
keeping up with competing products and consumer behavior. Apart from identifying prospects,
predictive analytics can also help to identify the most effective combination of product versions,
marketing material, communication channels and timing that should be used to target a given
consumer.
Fraud detection: Fraud is a big problem for many businesses and can be of various types:
inaccurate credit applications, fraudulent transactions (both offline and online), identity thefts and
false insurance. These problems plague firms of all sizes in many industries. Some examples of

44
likely victims are credit card issuers, insurance companies, retail merchants, manufacturers,
business-to-business suppliers and even services providers. Predictive analysis can help to
identify high-risk fraud candidates in business or the public sector.
Portfolio, product or economy-level prediction: These types of problems can be addressed by
predictive analytics using time series techniques. They can also be addressed via machine
learning approaches which transform the original time series into a feature vector space, where
the learning algorithm finds patterns that have predictive power.
Risk management: When employing risk management techniques, the results are always to
predict and benefit from a future scenario. Predictive analysis helps organizations or business
enterprises to identify future risk, Natural Disaster and its effect. Risk management helps them to
take correct decision on correct time.
Underwriting: Many businesses have to account for risk exposure due to their different services
and determine the cost needed to cover the risk. For example, auto insurance providers need to
accurately determine the amount of premium to charge to cover each automobile and driver. For
a health insurance provider, predictive analytics can analyze a few years of past medical claims
data, as well as lab, pharmacy and other records where available, to predict how expensive an
enrollee is likely to be in the future. Predictive analytics can help underwrite these quantities by
predicting the chances of illness, default, bankruptcy, etc. Predictive analytics can streamline the
process of customer acquisition by predicting the future risk behaviour of a customer using
application level data.
2.2. Big Data Analytics usage in India
From predicting ticket confirmations of trains to checking for water supply leakages and even for
finding the perfect bride and groom, Big Data is being used in a number of creative ways in
India. Following are few uses of Big Data Analytics in india in last few years [3,9].
a) Win elections (exit poll).
b) Finding a perfect match.
c) Detecting water leakages.
d) Gaining insights into shopping behavior.
e) Ensuring proper water supply.
f) Improve India’s financial inclusion ratio.
g) Improve product development.
h) Predict ticket confirmations for trains.
3. SOCIAL MEDIA ANALYTICS
The Social Media analytics is collecting information or data form the social media websites,
blogs etc. and uses it in business purpose or decision making. Now a Days Social Media is the
best platform for understand the real-time customer choice or intentions and sentiments, using
social media business advertising, product marketing easily. EBay.com uses two data warehouses
at 7.5 petabytes and 40PB as well as a 40PB Hadoop cluster for search, consumer
recommendations, and merchandising. Inside eBay’s 90PB data warehouse. Amazon.com
handles millions of back-end operations every day, as well as queries from more than half a
million third-party sellers. The core technology that keeps Amazon running is Linux-based and
as of 2005 they had the world’s three largest Linux databases, with capacities of 7.8 TB, 18.5
TB, and 24.7 TB. Facebook handles 50 billion photos from its user base. As of August 2012,
Google was handling roughly 100 billion searches per month [8, 9, 14].

45
3.1. Application areas
a) Behavior Analytics
b) Location-based interaction Analytics
c) Recommender systems development
d) Link prediction
e) Customer interaction and Analytics & marketing
f) Media use
g) Security
h) Social studies
3.2. Challenges of social media analytics
a) Massive amounts of data require lots of storage space and processing power.
b) Shifting social media platforms.
c) Worldwide online accessibility provides more data in many languages.
d) Evolution of online language.
4. CONTENT BASE ANALYTICS
Content Base Analytics means whatever data that store in social media back-end site. For
example Facebook users store their data, photos, and videos on Facebook storage. For this
content they need big amount of storage but now a days number of users increasing rapidly so,
social networking sites like Facebook, twitter, WhatsApp need to increase their storage capacity
day by day and that’s the obstacle because they don’t know how much of storage capacity they
need to increase.
Content-based predictive analytics recommender systems mostly match features (tagged
keywords) among similar items and the user’s profile to make recommendations. When a user
purchases an item that has tagged features, items with features that match those of the original
item will be recommended. The more features match, the higher the probability the user will like
the recommendation. This degree of probability is called precision. [4,6,13] User-based tagging,
however, turns up other problems for a content-based filtering system (and collaborative
filtering) like:
a) Credibility: Not all customers tell the truth (especially online), and users who have only a
small rating history can skew the data. In addition, some vendors may give (or encourage
others to give) positive ratings to their own products while giving negative ratings to their
competitors’ products.
b) Scarcity: Not all items will be rated or will have enough ratings to produce useful data.
c) Inconsistency: Not all users use the same keywords to tag an item, even though the meaning
may be the same. Additionally, some attributes can be subjective. For example, one viewer
of a movie may consider it short while another says it’s too long.
4. 1. Precision with constant feedback
One way to improve the precision of the system’s recommendations is to ask customers for
feedback whenever possible. Collecting customer feedback can be done in many different ways,
through multiple channels. Some companies ask the customer to rate an item or service after

46
purchase. Other systems provide social-media-style links so customers can ―like‖ or ―dislike‖ a
product.
4.2. Measurement for effectiveness of system recommendations
The success of a system’s recommendations depends on how well it meets two criteria: precision
(think of it as a set of perfect matches — usually a small set) and recall (think of it as a set of
possible matches — usually a larger set). Issues in measurement for effectiveness:
a) Precision measures how accurate the system’s recommendation was. Precision is difficult to
measure because it can be subjective and hard to quantify.
b) Some recommendations may connect with the customer’s interests but the customer may still
not buy. The highest confidence that a recommendation is precise comes from clear evidence:
The customer buys the item. Alternatively, the system can explicitly ask the user to rate its
recommendations.
c) Recall measures the set of possible good recommendations your system comes up with.
Think of recall as an inventory of possible recommendations, but not all of them are perfect
recommendations. There is generally an inverse relationship to precision and recall. That is,
as recall goes up, precision goes down, and vice versa.
The ideal system would have both high precision and high recall. But realistically, the best
outcome is to strike a delicate balance between the two. Emphasizing precision or recall really
depends on the problem you’re trying to solve [4,6,13].
5. TEXT ANALYTICS
Most of all information or data is available in textual form in databases. From these contexts,
manual Analytics or effective extraction of important information are not possible. For that it is
relevant to provide some automatic tools for analyzing large textual data. Text analytics or text
mining refers process of deriving important information from text data. It will use to extract
meaningful data from the text. It use many ways like associations among entities, predictive
rules, patterns, concepts, events etc. based on rules. Text analytics widely use in government,
research, and business needs. Data simply tells you what people did but text analytics tell you
why. From unstructured or semi structured text data all information will retrieve. From all textual
data it will extract important information. After extracting information it will be categorized. And
from these categorized information we can take decision for business [5, 6].
5.1. Steps for Text Analytics system (Figure -1):
a) Text: In initial stage data is unstructured.
b) Text processing: All information will transfer in Semantic Syntactic text.
c) Text transformation: In it important text will extract for future use.
d) Feature selection: In it data is counted and display in Statistics format.
e) Data mining: All data is classified and clustered.

47
Figure 1. The steps for Text Analytics system
5.2. Text Analytics applications areas:
a) Security application: It will we monitoring and analyzing internet blogs, news, social sites
etc. for national security purpose. It will use full detect unethical thing on internet.
b) Marketing application: By analyzing text data we can identify which type of product
customer most like.
c) Analyzing open – ended survey responses: In survey research one company ask to customer
some question like, pros and cons about some products or asking for suggestion. For
analyzing these types of data, text analytics is require.
d) Automatic process on emails and messages: By using big data analytics we can filter huge
amount of emails based on some terms or words. It is also useful when you want to
automatically divert messages or mails to appropriate department or section.
5.3. Distinct Aspects of Text in Social Media:
a) Time Sensitivity: An important feature of the social media services is their real-time nature.
With the rapid growth of the content and communication styles, text is also changing. As the
time sensitivity of the textual data the people’s thoughts also changes from time to time.
b) Short Length: Successful processing of the short texts is essential for the text analytics
method. As the messages are short, it makes people more efficient with their participation in
social networking websites. Short messages are used in social media which consists of few
phrases or sentences.
c) Unstructured Phrases: An important difference between the text in social media and
traditional media is the difference in the quality of content. Different people posts different
things according to their knowledge, ideas, and thoughts. When composing a message also
many new abbreviations and acronyms are used for e.g. How r u? ―Gr8‖ are actually not
words but they are popular in social media.
5.4. Applying Text Analytics to Social Media:
a) Event Detection: It aims to monitor a data source and detect the occurrence of an event that is
to be captured within that source. These data sources includes images, videos, audios, text
documents.
b) Collaborative Question Answering: As social networking websites has emerged, the
collaborative question answering services have also emerged. It includes several expert

48
people to answer the questions posted by the people. A large number of questions and
answers are posted on the social networking websites.
c) Social Tagging: Tagging of the data has also increased to a great extent. For example when
any particular user is looking or searching for a recent event like ―Bihar Election‖ then the
system will return the results that are tagged as ―Bihar‖ or ‖Election‖.
Textual data in social media provides lots of information and also the user-generated content
provides diverse and unique information in forms of comments, posts and tags. [5,6]
6. AUDIO ANALYTICS
Audio analytics is the process of compressing data and packaging the data in to single format
called audio. Audio Analytics refers to the extraction of meaning and information from audio
signals for Analysis. There are two way to represent the audio Analytics is 1) Sound
Representation 2) Raw Sound Files. Audio file format is a format for store digital audio data on a
system. There are three main audio format: Uncompressed audio format, Lossless compressed
audio format, Lossy compressed audio format. [11]
5.1. Application Area of Audio Analytics:
The audio is the file format that used to transfer the data to one place to another. Audio analytics
is used to check whether given audio data is available in proper format or in similar format that
sender send. The Application of audio Analytics are many:
a) Surveillance application: Surveillance application is based on approach for systematic choice
of audio classes for detection of crimes done in society. A surveillance application is based
on audio Analytics framework is the only way to detect suspicious kind of activity. The
application is also used to send some important information to surveillance at some crisis
situation urgently.
b) Detection of Threats: The audio mechanism is used to indentify the thread that take place
between sender and receiver.
c) Tele-monitoring System: New technology have camera with the facilities to record the audio
also. Audio Analytics may provide effective detection of screams, breaking glass, gun sound,
explosions, calling for help sound etc. Combination of audio Analytics and video Analytics
in single monitoring system result as a good threat detection efficiency.
d) Mobile Networking System: The Mobile networking system is used to talk or transfer
information to one place to another place. Sometimes due to some network problem the audio
sound is not work properly at that time Audio Analytics is used to find the information that
not send properly due to some problems.
7. VIDEO ANALYTICS
Video is a major issue when considering big data. Videos and images contribute to 80 % of
unstructured data. Now a days, CCTV cameras are the one form of digital information and
surveillance. All these information is stored and processed for further use, but video contains lots
of information and is generally large in size. For example YouTube has innumerable videos
being uploaded every minute containing a massive information. Not all video are important and
viewed largely. This creates a situation where videos create a junk and hard-core contribution to
big data problems. Apart from videos, surveillance cameras generate a lot of information in
seconds. Even a small Digital camera capturing an image stores millions of pixel information in
mille seconds.

49
VIDEO Data Analytics dimensions - Volume: Size of video being more, takes the network as
well as the server, time for processing. Low bandwidth connections create traffic on network as
these videos deliver slowly. When stored on mass storage on secondary storage requires huge
amount of space and takes more time retrieving as well as processing. Variety: Videos consisting
of various format and variety such as HD videos, Blu-ray copies etc. Velocity: It is speed of data.
Now a days, Digital cameras process and capture videos at a very high quality and high speed.
Video editing makes it to grow in size as it contains other extra information about the videos.
Videos grow in size faster as they are simply nothing but collection of images.[7]
7.1. Application of video analytics:
a) Useful in accident cases: With the use of CCTV cameras we can identify what happened at
the time of accident it’s also used for security reason and parking vehicles etc.
b) Useful in schools, traffic police, business, security etc.
c) Video Analytics for investigation (Video Search): Video analytics algorithms is implemented
to analyze video, a task that is challenging and its very time consuming for human operator
especially when there is large amount of data are available using video analytics we can
search particular video when we required.
d) Video analytics for Business Intelligence: It uses to extracts statistical and operational data.
Rather than having operator that review all the video and tally all the people or cars moving
in certain area, or checking which traffic routes are most commonly taken, video analytics
can do it automatically.
e) Target and Scene Analytics: Video Analytics for business Intelligence involves target and
scene Analytics. Target Analytics provides details information about the target movement,
patterns, appearance and other characteristics which can be used for identification of target.
f) Direction Analytics: Direction Analytics is the ability to distinguish behavior by assigning
specific values (low to high) to areas within a camera’s field of view.
g) Remove the human equation through the automation: It removes the tedium involved in
giving one or more set of eyes on a monitor for an extended period of time. The automation
of video analytics allows the insertion of human judgment at the most critical time in the
surveillance process.
7. CONCLUSION AND FUTURE WORK
Now, computer industry accept Big Data as a new challenge for all types of machine automated
systems. There are many issues in storage, management, and retrieval of data known as Big Data.
The main problem is how we can use this data for increasing business and improvement in living
standard of people. In this paper we are discussing the issues, challenges, application as well as
proposing some actionable insight for Big Data. It will motivate researchers for finding
knowledge from the big amount of data available in different forms in different areas.
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AUTHORS
Jai Prakash Verma is associated with Nirma University since 2006. He joined as a
Lecturer in MCA section - Computer Science and Engineering Department. He received
Bachelor in Science (B Sc in PCM) and MCA from University of Rajasthan, Jaipur. He
is currently pursuing his PhD from Charusat University, Changa in the area of Big Data
Analysis. Data Warehousing and Mining is the main area of his expertise. He has been
actively involved in many STTP organized within Nirma university. He is currently
working as Assistant Professor in MCA Section - Computer Science and Engineering Department, Institute
of Technology, Nirma University.
Smita Agrawal received Bachelor in Science (B.Sc. in Chemistry) degree from Gujarat
University, Gujarat, India in 2001 and Master’s Degree in Computer Applications
(M.C.A) from Gujarat Vidhyapith, Gujarat, India in 2004. She is pursuing PhD in
Computer Science and Applications from Charotar University of Science and
Technology (CHARUSAT). She is associated with Computer Science and Engineering
Department of Instutute of Technology - Nirma University since 2009. Her research
interests include Parallel Processing, Object Oriented Analysis & Design and Programming Language(s).

51
Bankim Patel, is currently working as a Director and Professor of Computer Science at
Shrimad Rajchandra Institute of Management and Computer Application, Uka Tarsadi
University, Bardoli. He has 26 years of experience in research and teaching in Computer
Science and Applications. Having obtained Ph.D. from Veer Narmad South Gujarat
University in 1996, he had guided and produced 10 Ph. D. and 2 M. Phil. Degree holders in
Computer Science. Currently 8 research scholars are working under him for their Ph.D.
degree. He has authored 60+ papers in international/ national reputed journals, 2 articles
and 4 books so far. He has been awarded several awards like best research paper award
from Indian Science Congress, Significant Contribution award from CSI, Indira Gandhi Excellence award
from International Business Council, by Microsoft IT Academy for reorganization of commitment to
student success through excellence in IT education, Vikas Rattan Award etc. He is the Chief Editor of
National Journal of System and Information Technology (NJSIT) and member of editorial board of several
research journals like International Journal of Information and Computing Technology. He has lead the
Editorial committees for bringing out Proceedings of several National conferences on different themes of
Computer, IT and Knowledge management topics. His area of research includes Natural Language
Processing, Intelligent Systems, and Operating systems.
Atul Patel received Bachelor in Science B.Sc (Electronics), M.C.A. Degree from Gujarat
University, India. M.Phil. (Computer Science) Degree from Madurai Kamraj University,
India. He has received his Ph.D degree from S. P. University. Now he is Professor and
Dean, Smt Chandaben Mohanbhai Patel Institute of Computer Applications – Charotar
University of Science and Technology (CHARUSAT) Changa, India. His main research
areas are wireless communication and Network Security.

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