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Interactive Devices and the Internet
Published in R. S. Bridger, Introduction to Human Factors and Ergonomics, 2017
A search engine is basically an information retrieval system in the form of software designed to locate web pages on the World Wide Web. Search engines are different from web directories (or telephone directories) in that they constantly update the information using an algorithm known as a web crawler. They also contain information on many features of each page and use these features to find the information most relevant to the user's query. Different search engines use different algorithms to locate web pages and contain different kinds and amounts of information on each page including how often the page is accessed, keywords, number of links a particular page has with other pages, whether the page is sponsored, and so on. The algorithms differ between search engines and these differences, and the workings of any algorithm, usually lack transparency. In general, all search engines Gather collections of web pages or index portions of the webOrganize these pagesAllow users to interrogate the collections and sort them into “returns”Provide hyperlinks to web pages.
Hypertext Transfer Protocol (HTTP)
Published in Hossam Fattah, LTE™ Cellular Narrowband Internet of Things (NB-IoT), 2021
Hyper Text Transfer Protocol (HTTP) is a protocol for World Wide Web (WWW) communication between web clients and servers. Communication between client computers and web servers is done by sending HTTP requests and receiving HTTP responses. Clients are often browsers (Chrome, Edge, Safari), but they can be any type of program or device. Servers can be in the cloud. HTTPS is the secure version of HTTP. HTTPS is encrypted in order to increase security of data transfer. Every time you visit a website starting with HTTPS, a public/private key encryption is being used. It is the basis of SSL and TLS encryption, which is employed for HTTPS communications. In this chapter, you will learn how to use HTTP and HTTPS using the NB board.
Multi-Agent System for Text Mining
Published in Wahiba Ben Abdessalem Karaa, Nilanjan Dey, Mining Multimedia Documents, 2017
Safa Selmi, Wahiba Ben Abdessalem Karaa
A search engine is a web-based tool that enables users to locate information on the World Wide Web. More than 90% of the information can be retrieved from the search engine by users. Search engines utilize automated software applications (referred to as robots, bots, or spiders) that travel along the web, following links from page to page, site to site. The information gathered by the spiders is used to create a searchable index of the web.
Application of the Internet of Things in the textile industry
Published in Textile Progress, 2019
Hitesh Manglani, George L. Hodge, William Oxenham
Using information available in the literature [39–42], application protocols are compared in Table 2. Each of the standards is divided into 4 categories: usage case; how it transports data; mechanism of data request and response; and finally, the mechanism to broadcast data. Prior to the comparison, it is helpful to appreciate HTTP REST, which has existed for a long time now and is quite well-established. The World Wide Web is based on the Hyper Text Transfer Protocol (HTTP). HTTP is a way to communicate data and file transfer. It is similar to hypertext documents, which include hyperlinks to other resources that the user can easily access. In a client-server model, HTTP functions as request-response protocol. For example, our web browsers are the client, and a computer hosting a website acts as a server. When a web browser submits an HTTP request to a server, the servers, in turn, respond with HTML files and other data.
Wireless Transmission and Logging of Measurement Data Through Cellular Networks
Published in NCSLI Measure, 2018
Harsshit Agrawaal, J. E. Thompson
The World Wide Web has been using HTTP (hypertext transfer protocol) for information transfer since 1990, and the version of the protocol is referred to as “HTTP/1.1”. The protocol is generally used for response and request data handling. It is a set of open-ended headers and methods that indicates the purpose of a request. A request is sent by a client to a server in the form of a method (HEAD, GET, POST, PUT, DELETE, etc.) followed by URI (uniform resource identifier), protocol version, request modifier, and client information. The GET method token was used in the code for this article for request, followed by the URI. The transfer of the resources happens using TCP (transmission control protocol). TCP manages the connection between the client and server. The GET method was chosen over POST method since the information content was not sensitive, but the code was tested for the POST and PUT methods also. HTTP request was used over TCP connection to send packets of information from client to server.