Báo cáo khoa học: "Les hêtres tortillards en Europe occidentale " docx
Báo cáo khoa học: "Dépérissement du pin en maritime (Pinus pinaster Aït) Vendée. Les causes écologiques" pptx
...
forte
teneur
en
calcaire
total
(20
à
25%)
mais
à
faible
teneur
en
calcaire
actif
(moins
de
1%
en
moyenne).
Ces
sols
salsodiques
sont
dits
alcalins.
Le
sodium
est
présent
en ...
placettes
saines
et
dépérissantes,
dans
la
teneur
en
éléments
et
en
oligo-éléments.
En
d’autres
termes,
aucun
facteur
physico-chimique
ne
différencie
les
placettes
s...
Báo cáo khoa học: "Indices de compétition en forêt dense tropicale humide : étude de cas sur le dispositif sylvicole expérimental de Paracou (Guyane française)" ppt
...
calcul
des
coefficients
de
corrélation
linéaire
accroissement
/
indices
et
leur
évolution
Báo cáo khoa học: "Modèle de croissance en hauteur à partir de placettes temporaires pour Eucalyptus saligna au Cameroun" pdf
...
écarts
entre
réserves
s’accen-
tuent
sensiblement
avec
l’âge :
la
crois-
sance
initiale
dans
la
réserve
3
(Melap)
est
forte
mais
elle
se
ralentit
ensuite
très
rapidement
et ...
eau
éle-
vée.
Leur
pH
varie
entre
5,5
et
7,5.
La
teneur
en
matière
organique
varie
entre
2
et
14%
en
sur-
face,
et
diminue
rapidement
en
profondeur.
Le
rapport
C/N...
Báo cáo khoa học: "Les principaux types de sapinières (Abies alba Mill) dans le massif du Jura (France et Suisse). Étude phytoécologique" pptx
...
essentiels
qui
structurent
la
flore.
Ceux-ci
sont
mis
en
évidence
en
obser-
vant
le
mode
de
regroupement
des
espèces,
mé
ce
plan
en
un
diagramme
qui
combine
les
gradients ...
particulièrement
en
hêtraie
à
tilleul
et
sa
rareté
en
hêtraie-sapinière
hy-
grophile.
L’érable
sycomore
se
rencontre
essentiellement
en
hêtraie
à
érable
et
hê-
traie
à...
Tài liệu Báo cáo khoa học: The occurrence of hemocyanin in Hexapoda docx
... system (Promega) and
three independent clones were sequenced as described above.
Sequence and molecular phylogenetic analyses
Partial sequences were assembled with genedoc 2.7 [41].
The tools provided ... Boudreaux HB (1979) Arthropod Phylogeny with Special
Reference Process to Insects. Wiley, New York, NY.
30 Kristensen NP (1981) Phylogeny of insect orders. Annu
Rev Entomol 26, 135–157.
31 K...
Tài liệu Báo cáo khoa học: "The Thesaurus in Syntax and Semantics" docx
... pun.
The fourth paper presented at the Conference,
by R. H. Richens, made a different, though
cognate, recommendation. In it the author
recommended that a completely general inter-
lingual notation, ...
emerged, in that Halliday's amendments to
Richens' program have strengthened the case
for coding this program to go through the com-
puter by using the very general mathema...
Tài liệu Báo cáo khoa học: "Conditional Random Fields for Word Hyphenation" docx
... optimal for our
new English and Dutch datasets. Therefore, we
also do experiments with the PATGEN tool (Liang
and Breitenlohner, 2008). These are learning ex-
periments so we also use ten-fold cross ... hyphenation is to pre-
dict a sequence of 0/1 values as a function of a se-
quence of input characters. This sequential predic-
tion task is significantly different from a standard
(non-sequent...
Tài liệu Báo cáo khoa học: "K-means Clustering with Feature Hashing" docx
... feature ‘the current word ends with -ing’
can be expressed as a string cur:end:ing (here
we suppose : is a control character). Since indices
of dense vectors (which may be implemented with
arrays) ... hash-
ing to K-means is beneficial for memory-efficiency.
Our analysis theoretically motivated this combina-
tion. We supported our argument and analysis by
an experiment on document clustering, s...
Tài liệu Báo cáo khoa học: "Analyzing the Errors of Unsupervised Learning" docx
... different way—in terms of the
number of arguments. Because the stop probability
is different for adjacent and non-adjacent arguments,
it is statistically much cheaper to generate one argu-
ment ... Manning, 2004).
Identifiability error can be incurred when two dis-
tinct parameter settings yield the same probabil-
ity distribution over sentences. One type of non-
identifiability present in HMMs...