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A '''kinetic sorted list''' is a [[kinetic data structure]] for maintaining a [[List_(computing)|list]] of points under motion in sorted order. It is used as a kinetic [[predecessor]] data structure, and as a component in more complex kinetic data structures such as [[kinetic closest pair]].


== Implementation ==
This data structure maintains a list of the elements in sorted order, with the certificates enforcing the order between adjacent elements. When a certificate fails, the concerned elements are swapped. Then at most three certificates must be updated, the certificate of the swapped pair, and the two certificates involving the swapped elements and the elements of the sorted list which directly follow in precede and follow the swapped pair.


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For example, given a sorted list {A,B,C,D,E,F}, the certificates will be [A<B], [B<C], [C<D], [D<E], [E<F]. If the certificate [C<D] fails, the list will be updated to {A,B,D,C,E,F}, and the certificates [B<C], [C<D], and [D<E], will be replaced with [B<D], [D<C], and [C<E], respectively. The new set of certificates will be [A<B], [B<D], [D<C], [C<E], [E<F]
 
== Analysis ==
This kinetic data structure is:
* '''[[Kinetic data structure#Performance|Responsive]]:''' a certificate failure causes one swap (which takes O(1) time) and O(1) certificate changes which take O(log n) time to reschedule
* '''[[Kinetic data structure#Performance|Local]]:''' every element is involved in at most 2 certificates
* '''[[Kinetic data structure#Performance|Compact]]:''' there are exactly {{math|<var>n</var>-1}} certificates for a list of {{math|<var>n</var>}} elements
* '''[[Kinetic data structure#Performance|Efficient]]:''' this data structure causes no extraneous [[Kinetic data structure#Certificates Approach|internal events]], every change in the ordering of the elements causes exactly one certificate failure.
 
== Generalization ==
This data structure can be generalized to a kinetic data structure which can return a sorted list of points in <math>O(n \log m)</math> time and processes <math>O(\frac{n^2}{m})</math> events total, assuming [[kinetic data structure#Types of Trajectories|pseudo algebraic]] trajectories, where <math>m</math> is a parameter of the data structure. Thus, a maintenance-time versus query-time tradeoff can be made to tune to specific applications.
 
In the generalized data structure, the points are partitioned arbitrarily into m subsets of size <math>O(\frac{n}{m})</math>, and kinetic sorted lists are maintained on the subsets. Each sorted sublist needs to process <math>O(\frac{n^2}{m^2})</math> events (certificate failures) maximum, since there are <math>O(1)</math> swaps of each of the <math>O(\frac{n^2}{m^2})</math> pairs of elements. Thus the total time required to maintain the data structure is <math>O(\frac{n^2}{m})</math>. Requests for the sorted list can then be answered in <math>O(n\log m)</math> by merging the sorted sublists with [[mergesort]].
 
 
== References ==
{{Reflist}}
Abam, M.A., De Berg, M. Kinetic sorting and kinetic convex hulls (2007) Computational Geometry: Theory and Applications, 37 (1 SPEC. ISS.), pp. 16-26. doi: 10.1016/j.comgeo.2006.02.004 [http://www.sciencedirect.com/science/article/pii/S092577210600068X]
 
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Latest revision as of 07:07, 5 July 2013

A kinetic sorted list is a kinetic data structure for maintaining a list of points under motion in sorted order. It is used as a kinetic predecessor data structure, and as a component in more complex kinetic data structures such as kinetic closest pair.

Implementation

This data structure maintains a list of the elements in sorted order, with the certificates enforcing the order between adjacent elements. When a certificate fails, the concerned elements are swapped. Then at most three certificates must be updated, the certificate of the swapped pair, and the two certificates involving the swapped elements and the elements of the sorted list which directly follow in precede and follow the swapped pair.

For example, given a sorted list {A,B,C,D,E,F}, the certificates will be [A<B], [B<C], [C<D], [D<E], [E<F]. If the certificate [C<D] fails, the list will be updated to {A,B,D,C,E,F}, and the certificates [B<C], [C<D], and [D<E], will be replaced with [B<D], [D<C], and [C<E], respectively. The new set of certificates will be [A<B], [B<D], [D<C], [C<E], [E<F]

Analysis

This kinetic data structure is:

  • Responsive: a certificate failure causes one swap (which takes O(1) time) and O(1) certificate changes which take O(log n) time to reschedule
  • Local: every element is involved in at most 2 certificates
  • Compact: there are exactly Buying, selling and renting HDB and personal residential properties in Singapore are simple and transparent transactions. Although you are not required to engage a real property salesperson (generally often known as a "public listed property developers In singapore agent") to complete these property transactions, chances are you'll think about partaking one if you are not accustomed to the processes concerned.

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    Another method by way of which you could find out whether the agent is sweet is by checking the feedback, of the shoppers, on the website. There are various individuals would publish their comments on the web site of the Singapore property agent. You can take a look at these feedback and the see whether it will be clever to hire that specific Singapore property agent. You may even get in contact with the developer immediately. Many Singapore property brokers know the developers and you may confirm the goodwill of the agent by asking the developer. certificates for a list of Buying, selling and renting HDB and personal residential properties in Singapore are simple and transparent transactions. Although you are not required to engage a real property salesperson (generally often known as a "public listed property developers In singapore agent") to complete these property transactions, chances are you'll think about partaking one if you are not accustomed to the processes concerned.

    Professional agents are readily available once you need to discover an condominium for hire in singapore In some cases, landlords will take into account you more favourably in case your agent comes to them than for those who tried to method them by yourself. You need to be careful, nevertheless, as you resolve in your agent. Ensure that the agent you are contemplating working with is registered with the IEA – Institute of Estate Brokers. Whereas it might sound a hassle to you, will probably be worth it in the end. The IEA works by an ordinary algorithm and regulations, so you'll protect yourself in opposition to probably going with a rogue agent who prices you more than they should for his or her service in finding you an residence for lease in singapore.

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    A wholly owned subsidiary of SLP Worldwide, SLP Realty houses 900 associates to service SLP's fast rising portfolio of residential tasks. Real estate is a human-centric trade. Apart from offering comprehensive coaching applications for our associates, SLP Realty puts equal emphasis on creating human capabilities and creating sturdy teamwork throughout all ranges of our organisational hierarchy. Worldwide Presence At SLP International, our staff of execs is pushed to make sure our shoppers meet their enterprise and investment targets. Under is an inventory of some notable shoppers from completely different industries and markets, who've entrusted their real estate must the expertise of SLP Worldwide.

    If you're looking for a real estate or Singapore property agent online, you merely need to belief your instinct. It is because you don't know which agent is sweet and which agent will not be. Carry out research on a number of brokers by looking out the internet. As soon as if you find yourself certain that a selected agent is dependable and trustworthy, you'll be able to choose to utilize his partnerise find you a house in Singapore. More often than not, a property agent is considered to be good if she or he places the contact data on his web site. This is able to imply that the agent does not thoughts you calling them and asking them any questions regarding properties in Singapore. After chatting with them you too can see them of their office after taking an appointment.

    Another method by way of which you could find out whether the agent is sweet is by checking the feedback, of the shoppers, on the website. There are various individuals would publish their comments on the web site of the Singapore property agent. You can take a look at these feedback and the see whether it will be clever to hire that specific Singapore property agent. You may even get in contact with the developer immediately. Many Singapore property brokers know the developers and you may confirm the goodwill of the agent by asking the developer. elements
  • Efficient: this data structure causes no extraneous internal events, every change in the ordering of the elements causes exactly one certificate failure.

Generalization

This data structure can be generalized to a kinetic data structure which can return a sorted list of points in O(nlogm) time and processes O(n2m) events total, assuming pseudo algebraic trajectories, where m is a parameter of the data structure. Thus, a maintenance-time versus query-time tradeoff can be made to tune to specific applications.

In the generalized data structure, the points are partitioned arbitrarily into m subsets of size O(nm), and kinetic sorted lists are maintained on the subsets. Each sorted sublist needs to process O(n2m2) events (certificate failures) maximum, since there are O(1) swaps of each of the O(n2m2) pairs of elements. Thus the total time required to maintain the data structure is O(n2m). Requests for the sorted list can then be answered in O(nlogm) by merging the sorted sublists with mergesort.


References

43 year old Petroleum Engineer Harry from Deep River, usually spends time with hobbies and interests like renting movies, property developers in singapore new condominium and vehicle racing. Constantly enjoys going to destinations like Camino Real de Tierra Adentro. Abam, M.A., De Berg, M. Kinetic sorting and kinetic convex hulls (2007) Computational Geometry: Theory and Applications, 37 (1 SPEC. ISS.), pp. 16-26. doi: 10.1016/j.comgeo.2006.02.004 [1]