Bell (2007) writes an interesting article about tools --she says--every searcher or librarian should ever need. She discusses Boolean operators, controlled vocabulary, field searching, proximity searching, truncation, limits, and “pearl-growing.” (2007, p. 1)
The first tool she discusses is Boolean, which directs the system to relate search terms the way the searcher wants them. The Boolean operators used are AND (+), OR, and AND NOT or NOT (-).by a minus sign or hyphen (-). AND results in an intersection of two sets, OR represents a joining of two sets—it actually retrieves either one or the other or both--, and NOT leaves out records that contain the word the searcher does NOT want. Most people feel comfortable using AND, but cannot understand why OR actually retrieves fewer results. Most people rarely use NOT because they do not want to exclude possible useful results. Many databases
provide Boolean search boxes with drop down lists usually defaulted to AND.
The next tool is controlled vocabulary. Controlled vocabulary is the same as subject headings, a thesaurus, descriptors, or authority control. Its use provides all the information on a topic a database contains, lessens the use of synonyms, gives precise hits, and allows the searcher to access information that is unfamiliar. Controlled vocabulary provides the user with a subject list that refines a search, especially with unfamiliar topics. Then there is field searching. This is searching in a specific field of the database record, such as author, title, date, journal name, etc. Most databases provide default search fields with drop down menus. The designers spent a lot of effo...
... middle of paper ...
...
No one can predict the future of human powered search engines. How will they affect web searches? People want to search the web; they want to be able to express their opinions free of repercussions, but how safe can they feel after hearing about these people hunts? The government might have to implement laws or policies to make the web safer for all.
Works Cited
Bell, Suzanne. (2007). Tools Every Searcher Should Know and Use. Online, 31(5), 22-
27. http://www.infotoday.com/online/
Ojala, M. (2007). Finding and Using the Magic Words: Keywords, Thesauri, and Free
Text Search. Online, 31(4), 40-42. http://www.infotoday.com/online/
Sanders, D. (2008). Tag--You're It!. American Libraries, 39(11), 52-54.
http://americanlibrariesmagazine.org/
Xia, J. (2009). Extreme Human-Powered Web Search. Online, 33(1), 33-36.
http://www.infotoday.com/online /
Some are valuable to our lives and can teach us many things that others just can’t. In Chapter 4 the chapter stays on the topic of how the web works and how it has changed throughout the years. The data that exist today only exist because of the World Wide Web. The astronomical number of data that we have might as well not exist without a search engine. In the book, the search engine is how other find out more and more.
In library and information science controlled vocabulary is a carefully selected list of words and phrases, which are used to tag units of information (document or work) so that they may be more easily retrieved by a search.
Helen makes a great point because it wasn’t until a few years ago that technology exploded and began to create all these different forms of databases that can do...
The internet is arguably the most used feature of today’s society. There is almost nothing that you cannot find on the internet. However, the information found is not always accurate information. I did a search of “privacy and security on the internet” on a Google (a free search engine). I then did the same search using the EBSCOhost’s Academic Search Premier database which is a subscription type search engine. I am going to evaluate the accuracy, authority, objectivity, and currency of the sources that came from these two search engines. Evaluating the websites that you retrieve information from is very important to understand the validity of the source.
"The uncensored, tantalizing, wondrous mind of the Internet shall be observed carefully. It is not so much about removing our privacy, it is about preserving our safety. Not having the government monitor search engines and ambitious websites is the error. With the constant threats of terrorism and our fate uncertain with the rise of murder rates and crime, we cannot afford not have them keep the Internet under surveillance.
In an effort to create a context for learning, one needs to define the language that will be used to teach a subject. So often in schools, from first grade through graduate studies, when teaching a new subject matter or concepts it is necessary to teach the vocabulary that will accompany that subject. However, we often spend little time making sure that vocabulary is learned and consequently without the prerequisite knowledge of vocabulary of learning the learning of information related to it is difficult. This need for definition of relevant language is seen in multiple sources with textbooks being on of the greatest sources of it. The books highlight, bold, or italicize critical words and provide definitions of the word or within the text or margins. This definition of terms gives the reader the knowledge basis to understand the content of what they are reading. If the books authors did not define these terms, then understanding the information they are trying to convey would be difficult.
Today, computer scientists often use Boolean to relate sets of data. Using the words AND, OR, NOT, IF, and EXCEPT, a Boolean algebraist can determine the truth of a statement as well as rewrite the statement in a more understandable form.
In today’s fast paced technology, search engines have become vastly popular use for people’s daily routines. A search engine is an information retrieval system that allows someone to search the...
Much like fast-food or entertainment, our modern world has access to tools for the nearly instant obtaining of information: search engines. But as with any service in today’s free market, there must be competition between two or more companies offering similar assets; in this case, Google’s search engine and Microsoft’s Bing. How do they compare to each other? Which delivers better results? Are there any distinguishing factors for one not common to the other? These questions are among many in the comparison between the two search engines. Through analyzing and weighing each option for Internet searches, one will be able to correctly determine which medium has greater value to the online community.
Information Retrieval is simply a field concerned with organizing information. In other terms, IR is emphasizing the range of different materials that need to be searched. Others researcher said that IR is the contrast between the strong structure and typing a database system with the lack of structure in the objects typically searched in IR. The actual process in information retrieval systems is it has to deal with incomplete or under specified information in the form of the queries issued by users. IR uses the techniques of storing and recovering and often disseminating recorded data especially through the use of a computerized system.
Databases are becoming as common in the workplace as the stapler. Businesses use databases to keep track of payroll, vacations, inventory, and a multitude of other taske of which are to vast to mention here. Basically businesses use databases anytime a large amount of data must be stored in such a manor that it can easily be searched, categorized and recalled in different means that can be easily read and understood by the end user. Databases are used extensively where I work. In fact, since Hyperion Solutions is a database and financial intelligence software developing company we produce one. To keep the material within scope I shall narrow the use of databases down to what we use just in the Orlando office of Hyperion Solutions alone.
Search engines, specifically Google, have probably contributed more to the distribution of knowledge than any other invention since the creation of the printing press. Google was created by Larry Page and Serge...
Search engines are not very complex in the way that they work. Each search engine sends out spiders to bots into web space going from link to link identifying all pages that it can. After the spiders get to a web page they generally index all the words on that page that are publicly available pages at the site. They then store this information into their databases and when you run a search it matches they key words you searched with the words on the page that the spider indexed. However when you are searching the web using a search engine, you are not searching the entire web as it is presently. You are looking at what the spiders indexed in the past.
Hill (2005) suggested that, Google’s, Internet Search product had changed the way people access information, changed the way they thought about information (p. 11). From its registration on September 15th 1997, Levy (2011) indicated that Google continued growing, in users’ priority for information (p. 112). Google search is a free service available to internet users, it is one of the many products owned by Google Inc. Google search was termed, “the avenue for connecting people to information” (Internship, 2013).
Middle Search Plus. Web. The Web. The Web. 1 Oct. 2015 -.