Page 215 - AI Ver 1.0 Class 9
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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.







                    System Maps


            A system map is a diagrammatic representation of a set of things working together. It focuses on the components
            and  boundaries  of  a  system.  System  map  helps  us  to  find  relationships  between  different  elements  of  the
            problem which we have scoped. It helps to find a solution to achieve the goal of our project.  Let us understand
            system maps with the help of an example.

            Streets are safe for pedestrians to walk if the number of people driving on the roads are less.






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