X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/ancetre.git/blobdiff_plain/f5256e331a2301f2774366bfed13512b3373e1db..464af100dbfe09253a6e2e1b4429cad64ae31237:/classEquiv.tex diff --git a/classEquiv.tex b/classEquiv.tex index cdc1280..b77c51a 100644 --- a/classEquiv.tex +++ b/classEquiv.tex @@ -6,10 +6,10 @@ is a pair that gives the similarity rate $r_{ij}$ between the two genes $g_{i}$ and $g_{j}$. The first step of this stage consists in building the following non-oriented -graph furthere denoted as to \emph{similarity graphe}. +graph further denoted as to \emph{similarity graph}. In this one, the vertices are the genes. There is an edge between $g_{i}$ and $g_{j}$ if the rate $r_{ij}$ is greater than a given similarity -treeshold $t$. +threshold $t$. We then define the relation $\sim$ such that $ x \sim y$ if $x$ and $y$ belong in the same connected component. @@ -21,21 +21,21 @@ All the genes which are equivalent to each other are also elements of the same equivalence class. Let us then consider the set of all equivalence classes of the set of genes by $\sim$, denoted $X/\sim = \{\dot{x} | x \textrm{ is a gene}\}$. -defined by \pi(x) = \dot{x} -which maps each gene into it respective equivalence classe by $\sim$. +defined by $\pi(x) = \dot{x}$ +which maps each gene into it respective equivalence class by $\sim$. -For each genome $[g_l,\ldot,g{l+m}]$, the second step computes +For each genome $[g_l,\ldots,g{l+m}]$, the second step computes the projection of each gene according to $\pi$. The resulting genome which is $$ -[\pi(g_l),\ldot,\pi(g{l+m})] +[\pi(g_l),\ldots,\pi(g{l+m})] $$ is again of size $m$. -Intuitivelly speaking, for two genes $g_i$ and $g_j$ +Intuitively speaking, for two genes $g_i$ and $g_j$ in the same equivalence class, there is path from $g_i$ and $g_j$. It signifies that each evolution step (represented by an edge in the similarity graph) @@ -48,8 +48,8 @@ We compute the core genome as follow. Each genome is projected according to $\pi$. We then consider the intersection of all the projected genomes which are considered as sets of genes and not as sequences of genes. -This results as the set of all the class representents $\dot{x}$ -such that each geneome has an gene $x$ in $\dot{x}$. +This results as the set of all the class $\dot{x}$ +such that each genome has an gene $x$ in $\dot{x}$. The pan genome is computed similarly: the union of all the projected genomes in computed here.