Divisão de Observação da Terra e Geoinformática

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Reviewer: 1


   Originality : Strong Accept
   Quality : Weak Reject
   Relevance : Accept
   Presentation : Neutral 
   Recommendation : Weak Reject

Summary: Spatial mobiliy as exploited e.g. in (mult~-player and mixed 
reality) games is an important issue.
In this paper a new model for games on grids with agents in the grids 
allowed to move in space, i.e. leaving a grid and entering others.
Spatial mobility is modeled and simulated in a number of different 
situations and under a number of varied strategies.


Details: What is the `lua ` language (Section 4)?
All figures (especiallz Fig. 6), and there esp. the lines drawn in the 
figures, are not sufficientlz visible and separated (at least in a 
black/white print out).
In Section 5 there was mentioned to show three experiments concerning 
how characteristics of the space may impact the results of the game 
simulations. I cannot see how the money in 5.1, the gain in 5.2 and the 
eleven strategies in 5.3 could help in this?
The 6 diagrams in Fig. 5 do need more explanations.
Please, make clear that in the final version of the paper answers to 
the following questions will get clear to the reader:
 - what should be enhanced?
 - what is the goal to achieve?




Candidate for the best paper award? : No

=====================================

Reviewer: 2


   Originality : Accept
   Quality : Accept
   Relevance : Strong Accept
   Presentation : Accept
   Recommendation : Accept

Summary: The authors describe what they claim is a new model for games 
on grids, where each cell contains agents that compete for it, and, 
instead of changing their strategies, the agents may move in the space.

Details: This short (?) paper is fairly easy to read and contains 
interesting ideas.

The authors should include some justification for basing their model on 
the chicken game. They should also  warn the reader, in section 2, that 
Section 5 will discuss variations of the initial parameters.


Candidate for the best paper award? : No
Candidate for the best paper award? : No

=====================================

Reviewer: 3


   Originality : Accept
   Quality : Reject
   Relevance : Weak Accept
   Presentation : Reject
   Recommendation : Weak Reject

Summary: The paper presents a study on mobility based on game theory. 

Details: Maybe because of the numerous defficiencies in writing, I 
could not really understand the point of this paper. It proposes 
experiments using game theory, in which a set of rules is set. It seems to me 
(and that is why I set my expertise as "Low" in this subject) that a 
different set of rules could produce a totally different result. The trick, 
IMHO, lies in setting rules that actually relate to something in the 
physical world, so that the results can be translatable to reality in 
some practical way. The experiments conducted and described in the paper 
seem to be in line with the authors' intention of showing how the whole 
game theory idea works, and how does it perform in comparison with 
itself when some conditions are changed. 

At the end, in the conclusions section, I ended up with the feeling 
that the meaning of "spatial" in the context of the game is not the same 
as our field is used to discuss. 

In my opinion, the paper would benefit greatly from the inclusion of a 
real-world situation that could be approximated by the game, and by 
explanations as to how to interpret the results in light of the example 
situation.

The paper deserves a complete English grammar review. Some figures 
contain lines that cannot be easily distinguished from each other in a 
black-and-white printout. 


Candidate for the best paper award? : No
Candidate for the best paper award? : No
Candidate for the best paper award? : No

=====================================

Reviewer: 4


   Originality : Accept
   Quality : Weak Reject
   Relevance : Neutral 
   Presentation : Reject
   Recommendation : Weak Reject

Summary: Present a new model of non-cooperative games within the 
framework of Game Theory based on conflicting agents with moving 
capabilities. The authors use a well-known example of Game Theory and evaluate some 
experiences with different topologies and behaviours.

Details: What are the motivations for these model? In what type of 
experiences do you think it will serve better as an explanation or 
prediction tool? I think there is a mix, in the current paper, between the 
model itself (a possible original and useful idea) and the test case (which 
states a relation between the results and Nash equilibrium, but I don't 
understand the relevance of the result). This difference should be 
stated more sharply.

In this sense, what are we gaining with all those variants of the 
initial chicken game?

If the results are indeed relevant, you should discuss them a bit more 
in section 4. You could  talk more about why are the results as they 
are. What are your ideas/arguments for the dynamics of these values thru 
time? 

I'm not sure if you present enough data to assert the 2nd paragraph of 
the conclusions.

There is a serious problem relating the graphics and its labels, they 
do not match. Some use colors and  others use dashes and solid lines. 
You should drop colors, unless the printing paper will also be  printed 
in color. In my case, everything was black and white, so I couldn't spot 
the differences.

Some side notes:

perhaps label Table 1 as 'Payoff Function', since you use the term in 
the beginning of section 2

in page 2, by 'colons' I suppose you mean 'colonists'


Candidate for the best paper award? : No
Candidate for the best paper award? : No
Candidate for the best paper award? : No
Candidate for the best paper award? : No