网络营销/电子商务词典：搜索引擎/互联网基础应用相关词汇（E）
【说明】：下列词汇为网上营销新观察通过多个网站的相关资源整理汇总，并未一一核对词汇内容的准确性，对词汇的解释不代表本站的观点，仅供初步参考，如需要严格考证词汇的意义，请参考互联网相关的专业词典。
electronic library
The term normally refers to web sites that provide access
to public information like catalogs, e-books, databases,
audio files etc.
Also see cybrarian.
entry page
See doorway page
EPC
Earnings Per Click. A unit of measure used to determine
a site's ability to convert visitors into customers. Calculated
by dividing total sales amount by total page views.
Also see EPV, ROI, conversion rate.
EPV
Earnings Per Visitor. A unit of measure used to determine
a site's ability to convert visitors into customers. Calculated
by dividing total sales amount by total number of visitors
to the site.
Also see EPC, ROI, conversion rate.
everflux
Once a month Google updates its entire index of web sites.
That is called the Google Dance and can last for a couple
of days - usually it's from about the 20th to the 28th of
every month. Around June/July 2002 we started seeing something
else though. Google results started changing all through
the month, in between the major updates. This continuous
change became known as everflux. It happens because Google,
in an ongoing effort to make their results as relevant as
possible, has introduced a "fresh crawl" that
runs each day. The idea behind the fresh crawl is to update
pages that change regularly. This allows Google to serve
results that are up-to-date with current events.
Excite
www.excite.com
One of the major search engines. For a detailed look at
Excite and the other major search engines, please refer
to our detailed discussion in the Search Engine Yearbook.
exact match
If not for partial matching, fuzzy matching, collaborative
filtering and stemming, search engines would only return
exact matches. A search for "power" would only
return documents containing the exact term, not documents
containing variations or related terms like powerful, strength
etc.
expert document
A document that links to many other (same-topic) documents.
Some search engines only consider links from expert documents
- as opposed to all documents in the collection - when determining
link popularity. According to the Hilltop paper, expert
documents are "pages that have been created with the
specific purpose of directing people towards resources".
expert index
A special sub-collection within a search engine index. An
expert index consists only of documents that are considered
expert documents.
expert link
A link to or from an expert document.
expert page
See expert document
eye candy
Aesthetically pleasing web sites are said to provide eye-candy.
The term is used to describe sites both positively and negatively.
In the context of search engines and SEO, eye candy is generally
perceived as unnecessary, not contributing to the marketing
effort.
【说明】：上述词汇为网上营销新观察通过多个网站的相关资源整理汇总，并未一一核对词汇内容的准确性，对词汇的解释不代表本站的观点，仅供初步参考，如需要严格考证词汇的意义，请参考互联网相关的专业词典。