FOA Section 1.1 http://www.cs.ucsd.edu/~rik/FOA/
Notes:
·
This
section provides a good overview of Find Out About which is a cognitive
activity using internal representations.
·
One
of the main point in this section is the FOA conversation loop which is
constructed as three steps: asking a question, constructing an answer and
assessing the answer
·
These
three steps are also referred as the search engine. Since the amount of data is
increasing rapidly, the retrieval of information is difficult. And this is an
important area that needs to be studied extensively, such as the cloud
computing.
IES
Section 1.1 - 1.2 http://www.ir.uwaterloo.ca/book/01-introduction.pdf
Notes:
·
This
section gives me a primary introduction of Information Retrieval. Moreover, it
states some examples, such as web search and file system. Especially, the
desktop and file system access the file directly instead of a list of ranked
files.
·
As
is said, the core problem to implement an efficient search engine is to find an
efficient implementation and evaluation of relevance ranking algorithms under a
variety of contexts and requirements.
·
After
reading, I know that there are some other applications which also belong to the
Information Retrieval Applications, for example, the spam filtering and documents
categorization.
MIR Sections 1.1 - 1.4 http://www.mir2ed.org/
Notes:
·
In
this reading, I realized the differences between browsing and searching more
clearly. Both of them are processes of retrieving information, but browsing is
started with less clearly defined main objective.
·
The
section 1.3 introduces the basic core components of an IR system, such as the
inverted index and RaR (Retrieval and Ranking). The processes of indexing, retrieval,
and ranking of documents are illustrated clearly in Figure 1.3.
·
With
the development of web, the IR system (search engine) still faces lots of issues
that need to be considered, for example, scalability, efficiency, web spam and
performance.
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