Keywords are the words that are used to reveal the internal structure of an author's reasoning. While they are used primarily for rhetoric, they are also used in a strictly grammatical sense for structural composition, reasoning, and comprehension. Indeed, they are an essential part of any language.

There are many different types of keyword categories including: Conclusion, Continuation, Contrast, Emphasis, Evidence, Illustration and Sequence. Each category serves its own function, as do the keywords inside of a given category.

Query terms

The term "keyword" also refers to the terms or phrases submitted by a user of a search engine. For example, a search of the phrase "keyword search" via the Google search engine reveals a set of search engine results that relate to the specified topic "keyword search". The link with the meta keywords previously defined was real in the last century, however, the search engines are actually using much more advanced techniques (statistics, natural language processing, web topology...) to enhance their results and thus the decreasing relation between those two type of keywords.

But a technical definition of "keyword" does not provide insight to their significance or how to work with them successfully. Significance is straightforward: as more and more of human knowledge is digitized and therefore 'searchable,' the ability to understand and successfully develop, organize and manipulate keywords leads directly to access to critically important information, and gets information to the right audience.

Keywords - Defintion, Strategies, Utilization

AuthorLinkBuilderz

Keywords play a major role in failure or success of any website as well as link building campaign. To run an effective link building campaign, you should research about the best keywords for your website. These keywords will be used in your site content as well as in anchor text of the incoming links for your website. But the question is how to choose the best and effective keywords for your website? Lets start our keyword hunt…

Remember that If you don’t choose the right keyword in the very first step, then it will undermine everything else you do later. Well, you are right! Why is your keyword so important?

Basically targeted visitors use search engines to find information using keywords. Choosing an effective keyword will help ensure that you targeted the right topic that someone actually wants to read. Here targeted visitors are the people that you most want to find and read your website. They are the internet surfers who are most likely to be interested in the service or product of your company and the most likely to respond by clicking through to your site.

Most of your targeted visitors will find your website by performing a search in one of the search engines. They will search for the keyword or words that make the most sense to them when they are looking for information. Your goal is to find the keyword that your targeted readers will most likely search under to find the information or the product that you are offering at your website. Use words that people are searching. Choosing a right keyword will ensure that your targeted visitors will take real interest in your website..

The basic and first step in finding effective keywords is putting yourself in your visitors’ shoes. Think about who they are and in what they’re interested in. If you run a website dedicated to pet food, then you wouldn’t want a visitor coming from the term online dating. Once you make a list of all the term you can think a visitor can use to find a site like yours, move to the second part of keyword research.

You can make your keyword list bigger by exploring your service or product with different angles. Let’s say you are selling Leather jackets. You can explore the need and objective areas of the product. Why anyone wanted a leather jacket? What exactly is its purpose and what purpose its fulfilling. You can also increase your keywords by categorizing your product in terms of color, size, etc.

Once you got a complete list of keywords that you can think of, go to keyword tools like wordtracker and Google Adword Keyword Tool. See the search counts of your keywords and competition against it. Your sheet may look like this after this work.

Meta keywords

On the web, a keyword is a reference to the content and/or the type of meta element included in a given web page's HTML code to aid in the page's indexing. A keyword meta element may include several comma-separated keywords (or keyword phrases, each of which may contain several individual words) as follows [1]:

<meta name="keywords" content="keyword,another keyword,one more keyword" />

Looking back to the 90s, the search engine crawlers were relatively poor in terms of analysis capabilities, and, thus, the meta keywords were a simple way to detect the topics of a page. Historically, it has been the first way to optimize for search engines, however, no major search engine today claims to read the keywords which has raised the question of whether they are still needed at all.

Working with keywords

There are two aspects to working with keywords: from the perspective of the information provider, and from the perspective of the information users (i.e. "producers" and "users").

Information producers: For information publishers (meaning anyone providing digitally searchable content they want to be found by a given audience), there are a tremendous number of subtleties to developing a keyword framework that a) adequately describes the content, and b) connects that content to the right audience. The first mistake many publishers make is to 'underdescribe' their content by using a keyword that is too general to be useful. For example, to say the keyword for this essay is "keywords" would be such an 'underdescription' -- a better keyword (really, keyword phrase) would be something like "keyword development" or "keyword definition" or "how keywords are used." The second mistake publishers frequently make is to not put themselves in the mind of the searcher, but to instead use keywords that are relevant to them. The easy fix for this lack of perspective is simply to do the footwork: make a list of keywords that might be relevant and then verify whether or not they garner searches by checking the list on a database that collects such information and provides "suggestions" that you may never thought of (Keyword Discovery, Wordtracker and Overture are just three such services). Never make assumptions -- for example, according to one of the keyword databases listed, "keyword assistance" gets zero searches per year but "keyword research" gets 50 searches per year. [Note that a very common error is the "verify" a keyword by typing it into a search engine and seeing how many web pages come back. This indicates is how many pages have that keyword in their content, not how many people are searching for that keyword, and there is no relationship between those two datum.] It is important to keep in mind the need to be flexible -- there are as many ways to describe something (and develop a search query for it) as there are people with keyboards -- but not too flexible. The goal is precision, and the searcher will appreciate efforts to describe precisely what your content is about if it is precisely what they are looking for.

Information users: Precision of the keyword phrase is of paramount importance to the searcher. Search engines are so powerful that they frequently return listings that ranges from exactly the user intent to completely irrelevant results. Careful consideration of exactly what the searcher wants is a prerequisite. Even more, searchers need to be familiar with ways to structure a search to get the information they want.

It is well worthwhile to investigate the advice search engines provide for successful querying. Some of the very useful tools for structuring keyword phrases include quotes, brackets, and boolean operators:

A Definition of Keywords

Undoubtedly, you have been reading about online marketing and keep seeing references to keywords. So, what exactly are keywords? Here is a definition of keywords and some advice.

A Definition of Keywords

Surprisingly, there are a variety of definitions for keywords. You are probably wondering how that can be, but it becomes pretty clear when you consider the different applications that use keywords.

Generally, keywords can be defined as a word or words identifying something on a page. This article is about defining keywords. As such, the title of the article is the keyword phrase which identifies the content of the page, to wit, “Definition of Keywords.”

More accurately, however, keywords can be defined as the specific terms used by person to search for something on the net. To find this page, you may have searched for “keyword definition” or “define keywords” or some such thing. This application is of great interest to Internet marketers. We want to know how you search for something so we can get our sites listed under those keyword phrases.

For pay-per-click advertising [ppc], keywords are defined as words used by prospects for which advertisements can be created and placed on search engines. In this sense, keywords are defined broadly. Because of the way ppc platforms like Google and Overture work, I just need a general idea of how you search for a subject of interest to me. I can place an advertisement under “travel gift” and the platform will list the ad for all searches close to this phrase, to wit, “traveler gifts,” “gifts for traveling” and so on.

For search engine optimization [seo], keywords are defined as the exact phrases used by prospects to search for something. Unlike ppc, seo requires the identification of the exact phrases because the page will rarely appear under similar keyword phrases. Using our previous example, I would have to build three individual pages for travel gift, traveler gifts and gifts for traveling. The different arrangement of words and tenses require as much.

Identifying a definition of keywords is entirely dependent upon how you intend to use them. In general, you want to identify the phrases being used to search for your produce or service and then incorporate those in your Internet marketing.

Definition of Keywords and Functions

The keywords available for selecting atoms in VMD are listed in tables 5.5 and 5.6 at the end of this chapter. If a keyword definition is followed by bool, it is either on or off. If followed by str it takes a value in the string context. If followed by num it takes a value in the number context.

Table 5.5: Atom selection keywords.

Keyword              Arg         Description

all            bool       everything

none     bool       nothing

name    str           atom name

type       str           atom type

index     num       the atom number, starting at 0

chain     str           the one-character chain identifier

residue num       a set of connected atoms with the same residue number

protein bool       a residue with atoms named C, N, CA, and O

nucleic  bool       a residue with atoms named P, O1P, O2P and either

                                O3', C3', C4', C5', O5' or O3*, C3*, C4*, C5*, O5*.

                                This definition assumes that the base is phosphorylated,

                                an assumption which will be corrected in the future.

backbone            bool       the C, N, CA, and O atoms of a protein

                                and the equivalent atoms in a nucleic acid.

sidechain             bool       non-backbone atoms and bonds

water, waters    bool       all atoms with the resname H2O, HH0, OHH, HOH,

                                OH2, SOL, WAT, TIP, TIP2, TIP3 or TIP4

fragment             num       a set of connected residues

pfrag     num       a set of connected protein residues

nfrag     num       a set of connected nucleic residues

sequence            str           a sequence given by one letter names

numbonds          num       number of bonds

resname              str           residue name

resid      num       residue id

segname             str           segment name

x, y, z     float       x, y, or z coordinates

radius    float       atomic radius

mass      float       atomic mass

charge  float       atomic charge

beta       float       temperature factor

occupancy           float       occupancy

at            bool       residues named ADA A THY T

acidic     bool       residues named ASP GLU

acyclic   bool       ``protein and not cyclic''

aliphatic               bool       residues named ALA GLY ILE LEU VAL

alpha     bool       atom's residue is an alpha helix

amino   bool       a residue with atoms named C, N, CA, and O

aromatic              bool       residues named HIS PHE TRP TYR

basic      bool       residues named ARG HIS LYS

bonded                bool       atoms for which numbonds>0

buried   bool       residues named ALA LEU VAL ILE PHE CYS MET TRP

cg            bool       residues named CYT C GUA G

charged                bool       ``basic or acidic''

cyclic      bool       residues named HIS PHE PRO TRP TYR 

Table 5.6: Atom selection keywords (continued).

Keyword              Arg         Description

hetero  bool       ``not (protein or nucleic)''

hydrogen            bool       name "[0-9]?H.*"

large      bool       ``protein and not (small or medium)''

medium               bool       residues named VAL THR ASP ASN PRO CYS ASX PCA HYP

neutral bool       residues named VAL PHE GLN TYR HIS CYS MET TRP ASX GLX PCA HYP

polar      bool       ``protein and not hydrophobic''

purine   bool       residues named ADE A GUA G

pyrimidine          bool       residues named CYT C THY T URI U

small      bool       residues named ALA GLY SER

surface bool       ``protein and not buried''

helix      bool       atom's residue is an alpha helix

helix_3_10          bool       atom's residue is an alpha helix

extended_beta                bool       atom's residue is a beta sheet

bridge_beta       bool       atom's residue is a beta sheet

rasmol  Rasmol string     translates Rasmol selection syntax to VMD

alpha_helix         bool       atom's residue is an alpha helix

pi_helix                bool       atom's residue is a pi helix

helix      bool       atom's residue is an alpha or pi helix

sheet    bool       atom's residue is a beta sheet ???

turn       bool       atom's residue is in a turn conformation

coil         bool       atom's residue is in a coil conformation

structure             str           single letter name for the secondary structure

phi, psi  float       backbone conformational angles

within   str           selects all atoms within a specified distance

                                of a selection (i.e within 5 of name FE).

exwithin              str           'exclusive within'; equivalent to (within 3 of X) and not X.

same     str           selects all atoms which have the same keyword

                                as the atoms in a given selection (i.e. same segname as resid 35)

ufx, ufy, ufz        num       force to apply in the x, y, or z coordinates

 Table 5.7 lists the built-in functions which may be used in atom selection expressions with keywords which take on a numeric value.  

Table 5.7: Atom selection functions.

Function              Description

sqr(x)    square of x

sqrt(x)  square root of x

abs(x)   absolute value of x

floor(x) largest integer not greater than x

ceil(x)    smallest integer not greater than x

sin(x)     sine of x

cos(x)    cosine of x

tan(x)    tangent of x

atan(x) arctangent of x

asin(x)  arcsin of x

acos(x) arccos of x

sinh(x)  hyperbolic sine of x

cosh(x) hyperbolic cosine of x

tanh(x) hyperbolic tangent of x

exp(x)   ``e to the power x''

log(x)    natural log of x

log10(x)                log base 10 of x