Michael J. Johnson
Computer Software Apps Healthcare CS205
Grantham University
M8 Written Assignment: Insurance Claims Follow-up and Dispute
22 February 2013
1.
Explain why patients with dual insuranc
have been frozen, deleted or marked as active. In this
case we leave those bonds as they are, and only go to
work on the others which have not yet been considered.
Notice also that if we come to a spi
condition of detailed balance. The proof of this fact is
exactly the same as it was for the Wolff algorithm. If the
number of links broken and made in performing a move
are m and n respectively (and t
algorithm in this region, it clearly would not be fair to
measure it for both algorithms in terms of number of
Monte Carlo steps (or steps per lattice site). A single
Monte Carlo step in the Wolff alg
the speed of our simulation. 4.4.4 The invaded cluster
algorithm Finally, in our round-up of Monte Carlo
algorithms for the Ising model, we come to an unusual
algorithm proposed by Jonathan Machta and
temperature is beforehand in order to use the algorithm.
Starting with a system at any temperature (for example T
= 0 at which all the spins are pointing in the same
direction) the algorithm will adju
Boltzmann probability, so, in the same N steps that it
takes to find all the excitation spins and flip them over to
join the backbone, the algorithm must also choose a
roughly equal number of new spin
likely on average, the first term in this expression is an
average over a large number of quantities which are
randomly either positive or negative and which will
therefore tend to average out to zero
probably the most important other algorithm is that of
Swendsen and Wang (1987), which, like the Wolff
algorithm, is a cluster-flipping algorithm. In fact this
algorithm is very similar to the Wolff a
is good because it minimizes the correlation between the
direction of a cluster before and after a move, the new
direction being chosen completely at random, regardless
of the old one. 3. The algorith
models Niedermayer considered it needs to be defined
elsewhere as well. Clearly, if for the Ising model we make
Padd(J) = 1e 2J and Padd(J) = 0, then we recover the
Wolff algorithm or the SwendsenWang
the Wolff algorithm is a better choice than the
Metropolis algorithm; although it is more complex than
the Metropolis algorithm, the Wolff algorithm has a very
small dynamic exponent, which means that
measured in steps (i.e., clusters flipped) in the Wolff
algorithm. The conventional choice for the constant of
proportionality is 1. This makes the correlation times for
the Wolff and Metropolis algor
discussed in Chapter 14, the SwendsenWang algorithm
can be implemented more efficiently on a parallel
computer than can the Wolff algorithm. 4.4 Further
algorithms for the Ising model 107 dimension d
a link between them with probability Padd = 1 e
2J . When we are done, we will have divided the whole
lattice into many different clusters of spins, as shown in
Figure 4.7, each of which will be a cor
temperature of the system is lower than the critical
temperature, the algorithm performs Monte Carlo steps
with T > Tc, and vice versa. Thus, it seems plausible that
the algorithm would drive itself t
on average every two steps (rather than every step as in
the Wolff algorithmsee Figure 4.4), but otherwise the
two will behave almost identically. Thus, as with the
Wolff algorithm, we can expect 106
given by the average of the probability of a cluster being
chosen times the size of that cluster: hni = DX i pini E = 1
N DX i n 2 i E = Nhm2 i. (4.23) Now if we employ Equation
(1.36), and recall tha
cluster, the time taken to do one Monte Carlo step should
scale with cluster size. 4.3 Properties of the Wolff
algorithm 99 10 100 lattice size L 1 2 3 correlation time
Figure 4.6 The correlation tim
the clusters first and then choose the seed spin
afterwards, rather than the other way around. This would
not be a very efficient way of implementing the Wolff
algorithm, since it requires us to creat
configurations: they can be linked as in the Swendsen
Wang case, so that they must flip together, they can have
no connection between them at all, so that they can flip
however they like, or they can
come as a great surprise that this algorithm also satisfies
the condition of detailed balance, though just to be
thorough lets prove it. The probability of making the
transition from a state in which
methods are very general and can be applied to all sorts
of models, such as the glassy spin models that we will
study in Chapter 6. Here we will just consider their
application to the ordinary Ising m
large. To see this, let us consider an extreme case: the q =
100 Potts model on a square lattice in two dimensions. At
high temperatures, the acceptance ratio (4.39) is always
either 1 or close to it
algorithm towards working more at the long lengthscales (bigger, coarser blocks). Well, perhaps you can see
why the complexity of this algorithm has put people off
using it. The proof that the algorit
Metropolis algorithm has a slight edge in speed in this
regime because of its extreme simplicity. So, if the
Metropolis algorithm beats the Wolff algorithm (albeit
only 98 Chapter 4: Other algorithms
SwendsenWang algorithm. (A comparison with the
Wolff algorithm yields similar resultsthe performance
of the Wolff and SwendsenWang algorithms is
comparable.) So, how does the invaded cluster algorithm
interaction energy is changed by a factor of two J 1 2 J
from Equation (3.1).) For higher values of q the Potts
model behaves similarly in some ways to the Ising model.
For J > 0 (the ferromagnetic ca
making the clusters formed larger and larger. This gives
us a way of controlling the sizes of the clusters formed in
our algorithm, all the way up to clusters which
encompass (almost) every spin on th
CS205 Week 4 Assignment
1. Describe the difference between Original Medicare and Medicare Advantage
plans. Standard Medicare comes in two parts: Part A and Part B. Part A
covers a portion of what it c
Kimberly Hutchinson
Week 6 Assingment
Procedure Posting Routines
1.
2.
3.
4.
5.
Name the three steps involved in the claims management process. The three
steps involved in the claims management proces
Assignment: Reviewing Computer Operations
1.
2.
3.
4.
5.
Explain the purpose of having sequential reference numbers on a superbill
(encounter form). The purpose of having a sequential reference number
Week 3-CS205
Destiny Meek
1-Four main parts
1-Accuracy, 2-Name of Patient, 3-Insurance of patient, 4-Medical
history
2-A established patient is one who has received professional services
from a Dr or