Information Technology Reference
In-Depth Information
The novelty of our work therefore lies in the consideration of memory
relationships, both within an individual's serendipitous moments and across
the lifetime memories of multiple individuals, as a primary consideration
of our memory database system. We believe the use of a P2P network struc-
ture as a means to reflect such relationships to be unique, yet with genuine
benefits in regards to the identification of relevant memories and sharing of
memories between individuals.
There are four major areas that form the core for our work. They are: the
way in which multimedia data can be retrieved, media content analysis for
personal lifetime evaluation, the manner in which multimedia data can be
accessed through P2P networks, and the privacy and security of such data.
12.2.2 Multimedia Data retrieval
Information flows into the real human memory from the outside world
through an individual's senses of sight, hearing, smell, taste, and touch. The
web site entitled The Brain From Top to Bottom [15], which has links to the
Canadian Institute of Health Research, states that memory is simply a way
we store and recall things we have sensed. Nerve network patterns store
memories. We recall a memory only when we activate that network of inter-
connected neurons. In addition our memory is divided into two sections:
short-term memory and long-term memory. We store information from our
six sensory capabilities in areas located throughout the cortex. Some of this
data then moves into short-term memory. Finally, some of that information
goes into our long-term storage in various parts of the cortex, much of it
returning to the sensory cortex areas where we originally received it. Only
the data that catches our attention (such as a police car behind us) or because
we will need it soon (a telephone number) goes into our short-term memory.
We hold short-term data for maybe 30 seconds. Short-term storage is small;
it holds about seven independent items at one time, such as carry numbers
when calculating arithmetic.
In this research, we try to transfer the concept of human memory into a
multimedia database system. Everything we capture constitutes part of our
lifetime experience, which we can store in the system. The raw data which
we need to edit, we store in a temporary database for a maximum of two
months. After two months, a pop-up alert will suggest to the user to remove
existing data onto external devices (such as CDs or DVDs).
More than 100 articles on multimedia data retrieval research—especially
in the area if content-based retrieval—have been published. From the point
of view of this project, multimedia data retrieval is important because every-
thing we store in our personal digital memory we may need to retrieve back
for future use. We use various findings from previous research especially in
the area of automatic image annotating, semantic retrieval for video, text and
image retrieval, and music (e.g., MP3) retrieval.
