I am learning the techniques of caching mapping at the university, associative mapping, direct mapping and defined associative mapping. Which one is the most used nowadays? My hypothesis is associative and defined associative but I do not know which is the most used and why.

# Tag: technique

## What is the worst technique in Seo ..?

Hello friends,

I want to know who is the worst technique in seo ..?

## technique – Selection of Stereo Vision cameras (up to 200 meters) or alternatives

What I plan to do is to calculate the height and estimate the slope of the segmented object. The object seems to be 200 meters away. The camera will be static and the object of interest is the slope of the beach. Please see the attached image for more information.

Thank you for your help !!!.

## algorithms – Is there a name for the technique used in MergeSort's merge?

MergeSort has two parts, "divide" and "merge" (it can be said that three if you include "recurse" as its own part in the middle). I am interested in the "fusion" part, which tends to look like this:

```
consider two priority queues list1, list2
initialize an empty sorted list
while neither list1 nor list2 is empty:
find lowest element between peek(list1) and peek(list2)
pop that element from its list and add it to the sorted list
add the rest of the non-empty list to the sorted list
return the sorted list
```

This paradigm of "splitting into several priority queues and continually managing the first elements" is also useful for problems that are definitely not related to the merge, such as executing operations on a dependency list. the priority element of another lower list. For example,

```
consider two priority queues list1, list2
initialize an empty destination list
while neither list1 nor list2 is empty:
while peek(list1) < peek(list2):
add f(peek(list1), peek(list2)) to destination list
pop element from list1
pop element from list2
return destination list
```

In these two examples, we use the same idea "to iterate simultaneously in several priority queues, doing something with the upper elements of each of them, but removing one at a time". This differs from matching two lists and enumeration by means of corresponding items.

Is there a specific name for this technique / paradigm? The MergeSort Wikipedia page does not answer the question at the time of writing and, in the context of MergeSort, I have never seen it described other than by "merge" (which is incorrect in my second example) or by "conquest". (which is too vague)

## technique – Guideway for circular time lapse

I plan to take a picture of a subject from a different angle until I reach a full circle. As for the frequency, let's assume that an image of a photo every 1 degree (360 exhausting shots) reaches about 10 degrees. I've seen photographers do this and the results are very cool. The good advice for this is to find a physical circular object on the outside to walk beside.

## Question

Assuming we do not have circular objects in our garden, what other viable approach to achieving the most accurate circular path possible when you take your subject more than 360 degrees?

## technique – Why does the chair and grandfather look bigger and swollen?

I was watching one of the really good movies. In one of the scenes, the grandfather tries to "preach" the teenagers.

Here is the scene

This is not very obvious, but for some reason, the chair and grandfather look puffy, while the rest of the scene is "smaller." Why exactly?

## quantitative technique

: Pension plan

John currently has nothing spared for retirement. He wants to save money for his

retirement. In a month, he will save by depositing a fixed sum.

amount in a retirement savings account that will earn 12% compounded monthly. He will be

make 300 of these deposits. Then, one year after making his last deposit, he wants to retire.

income of RM 60,000 per year for 25 years. The fund will continue to earn 12% compound

monthly.

(i) How much does he need in his account on his retirement day? (6 points)

(ii) What should be the amount of his monthly deposits for his retirement plan? (4 points)

## Do I have to attack twice to activate the drunken technique and its advantage to disorganize? [on hold]

I have a question, must I attack with one of my lashing attacks to activate the disengagement benefit?

## algorithms – Can the data be compressed using this hash function technique?

I would like to know if this data compression scheme would work or not, and why:

Suppose we have a file. If we treat the bits that make up the file as the binary representation of a number n, we have n (of course, if the first bit is zero, we return each bit so that n is unique). We now have the number n and a boolean that tells us whether to return all bits of the binary representation of n or not.

My idea was to approximate n down (for example, find a relatively large number high to a relatively large power, such as 17 ^ 6038), then start computing arbitrary hashes for all numbers from this approximation of n to real number, counting the number of collisions. When we finally get to n, we have "collision state" hashes, then we produce the compressed file, which basically contains information on how to get the approximation of n (by example 17 ^ 6038) and on "collision state". for n (note that this "collision state" must also occupy very few bits, so I'm not sure this is possible).

The decompression procedure would do a very similar process; it gets closer to n (for example, compute n as 17 ^ 6038) and then starts chopping (ie applying a function and checking the result) each number (we could also check every 5 digits or one another divisor of n – ~ n) until the "collision state" is the same as that specified in the compressed file. Once we match everything, we have n. Then, it would be enough to reverse or not each bit (as specified in the compressed file) and generate it in a file.

Could it work? The only problem I can think of is (besides the time required for treatment), the number of collisions is extremely important.

## Does the image quality of the lens affect the "focus and recomposition" technique?

Depends at least on the depth of field.

For example, if you have 85 mm f / 1.2 on a full-frame camera and make a portrait of the head and shoulders (distance: 1.65 meters), the depth of field is 12.3 mm in front of the camera. focal plane and 12.5 mm behind the focal plane. .

What are the chances that the camera will move so that the subject is not close enough to the focal plane? I would say rather high, even if I do not have a full frame camera or 85mm f / 1.2 lens.

Use the right tool for the job. Your camera may have several autofocus points, although in some cases the center point is the most accurate.

On the other hand, the head / shoulders portrait of 135 mm f / 2.8 on a Canon 1.6x crop sensor body (distance: 4.26 meters) has a depth of field of 48 mm in front of the plane focal and 49.2 mm in front of his plane. I would say that in this case, the risk that the subject is no longer perfectly clear is less important.