Page 224 - Artificial Intellegence_v2.0_Class_9
P. 224

• Data features refer to the type of data that you want to collect. In the above example, the data features would
           be each subject average, number of students taking the exam, theory and practical marks distribution of each
           subject, etc.


        Reliable Sources of Relevant Data

        Data is the base for any AI project to be built. When the data is acquired, it's important to check if it's from a
        reliable and authentic source for the accuracy of the project.
        Also, the acquisition methods should be authentic so that there's no conflict in achieving project goals.

        There are various sources to collect relevant data for our project:
           • Surveys:  Data  can  be  collected  from online surveys,  telephonic  surveys or  in-person surveys and  collect
           responses. Surveys are a way of collecting data from a group of people in order to gain information and insights
           into various topics of interest. The process involves asking people for information through questionnaires which
           can be online or offline. It can be considered as a data source.

           • Web Scraping: Data or information can also be extracted from a website. Web scraping or Data scraping is the
           method of downloading information from the World Wide Web (WWW) and storing it onto your computer for
           later reference. The data collected in this way is an online data.
           • Sensors: Data can also be collected from various sensors like collecting environmental data and stored in some
           data storage solutions. Sensors are connected through gateways which enable them to collect live data in the
           offline mode.
           • Cameras: Data can be seen, written down or recorded onto the computer. Cameras are used to collect data in
           the form of images. CCTV, web cameras, surveillance cameras are big sources of visual data that can be acquired
           from various places.

           • Observations: It is a method of collecting data by watching facts as they occur. Using the observation technique,
           data can be analysed and used for testing the model.
           • Application  Programming Interface (APIs): APIs are  a  set of functions and  procedures that  allow  one
           application to connect to another. So, one of the ways of collecting data is through APIs that can be used to
           collect data from social media services for analysis.

        There are times using the internet, we acquire unauthentic data from websites for our AI project. Extracting
        private data can be an offence. So, keeping this in mind we should ensure the data is collected from open-sourced
        websites hosted by the government. They are one of the most reliable and authentic sources of information.
        These portals have information collected in suitable format that can be downloaded. Some of the open-sourced
        government portals are data.gov.in, india.gov.in, etc.
        After listing the data features, let's understand the concept of system maps.


                        Reboot


              List down 5 ways of acquiring data for an AI project.










              222     Touchpad Artificial Intelligence (Ver. 2.0)-IX
   219   220   221   222   223   224   225   226   227   228   229