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Searching on document metadata
Metadata Search and Search Results.

TAPoR tools
Spawned Search and Analytical Functions.

The proof-of-concept build could display text data in a variety of forms (plain-text, HTML, and PDF) and display images of various formats ( Figures 3 and 4 ). Users could zoom in and out when viewing images, and scale the display when viewing texts ( Figure 5 ). If REKn contained different versions of an object—such as images, transcriptions, translations—they were linked together in PReE, allowing users to view an image and corresponding text data side-by-side ( Figure 6 ).

Text display
Reading Text Data

PDF display
PDF Display

Zoom and pan images
Zoom and Pan Images.

Side-by-side display of text and images
Side-by-Side Display of Texts and Images

This initial version of PReE also offered composition and communication functions, such as the ability for a user to select a portion of an image or text and to save this to a workflow, or the capacity to create and store notes for later use. Users were also able to track their own usage and document views, which could then be saved to the workflow for later use. Similarly, administrators were able to track user access and use of the knowledgebase materials, which might be of interest to content partners (such as academic and commercial publishers) wishing to use the data for statistical analysis.

Demonstration of REKn/PReE proof of concept

4. research prototypes: challenges and experiments

After the success of our proof of concept, we set out to imagine the next steps of modeling as part of our research program. Indeed, growing interest amongst knowledge providers in applying the concept of a professional reading environment to their databases and similar resources brought us to consider how to expand PReE beyond the confines of REKn. After evaluating our progress to date, we realized that we needed to take what we had learned from the proof of concept and apply that knowledge to new challenges and requirements. Our key focus would be on issues of scalability, functionality, and maintainability.

4.1. challenge: scalable data storage

In the proof-of-concept build, all REKn data was stored in binary fields in a database. While this approach had the benefit of keeping all of the data in one easily accessible place, it raised a number of concerns—most pressingly, the issue of scalability. Dealing with several hundred gigabytes is manageable with local infrastructure and ordinary tools. However, we realized that we had to reconsider the tools when dealing in the range of several terabytes. Careful consideration would also have to be given to indexing and other operations which might require exponentially longer processing times as the database increased in size.

Even with a good infrastructure, practical limitations on database content are still an important consideration, especially were we to include large corpora (the larger datasets of the Canadian Research Knowledge Network were discussed, for example) or significant sections of the Internet (via thin-slicing across knowledge domain-specific data). Setting practical limitations required us to consider what was essential and what needed to be stored—for example, did we have to store an entire document, or could it be simply a URL? Storing all REKn data in binary fields in a database during the proof-of-concept stage posed additional concerns. Incremental backups, for example, required more complicated scripts to look through the database to identify new rows added. Full backups would require a server-intensive process of exporting all of the data in the database. This, of course, could present performance issues should the total database size reach the terabyte range. Equally, to distribute the database in its current state amongst multiple servers would pose no mean feat.

Questions & Answers

can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
ninjadapaul
20/(×-6^2)
Salomon
okay, so you have 6 raised to the power of 2. what is that part of your answer
ninjadapaul
I don't understand what the A with approx sign and the boxed x mean
ninjadapaul
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
Salomon
I'm not sure why it wrote it the other way
Salomon
I got X =-6
Salomon
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
ninjadapaul
oops. ignore that.
ninjadapaul
so you not have an equal sign anywhere in the original equation?
ninjadapaul
Commplementary angles
Idrissa Reply
hello
Sherica
im all ears I need to learn
Sherica
right! what he said ⤴⤴⤴
Tamia
what is a good calculator for all algebra; would a Casio fx 260 work with all algebra equations? please name the cheapest, thanks.
Kevin Reply
a perfect square v²+2v+_
Dearan Reply
kkk nice
Abdirahman Reply
algebra 2 Inequalities:If equation 2 = 0 it is an open set?
Kim Reply
or infinite solutions?
Kim
The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
Al
y=10×
Embra Reply
if |A| not equal to 0 and order of A is n prove that adj (adj A = |A|
Nancy Reply
rolling four fair dice and getting an even number an all four dice
ramon Reply
Kristine 2*2*2=8
Bridget Reply
Differences Between Laspeyres and Paasche Indices
Emedobi Reply
No. 7x -4y is simplified from 4x + (3y + 3x) -7y
Mary Reply
is it 3×y ?
Joan Reply
J, combine like terms 7x-4y
Bridget Reply
im not good at math so would this help me
Rachael Reply
yes
Asali
I'm not good at math so would you help me
Samantha
what is the problem that i will help you to self with?
Asali
how do you translate this in Algebraic Expressions
linda Reply
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
the Beer law works very well for dilute solutions but fails for very high concentrations. why?
bamidele Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Online humanities scholarship: the shape of things to come. OpenStax CNX. May 08, 2010 Download for free at http://cnx.org/content/col11199/1.1
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