support vector machine classification of microarray gene expression data
Tài liệu Báo cáo khoa học: Induction of uPA gene expression by the blockage of E-cadherin via Src- and Shc-dependent Erk signaling docx
Ngày tải lên :
19/02/2014, 05:20
... inducer
of uPA gene expression [16].
Decma-induced uPA gene expression is
dependent on Erk activation
We and others have shown that activation of Erk plays
an important role in uPA gene expression ... phos-
phorylation. Moreover, expression of silent mutants of
Shc isoforms showed that only p46
Shc
and p52
Shc
res-
cued the effect of the siRNA. Overexpression of p66
Shc
not only failed to ... increased expression of uPA is
directly related to higher tumor growth and metastasis
[1]. Several analyses have already made it clear that the
expression of E-cadherin and the expression of MMPs
are...
- 14
- 599
- 0
phân loại văn bản bằng phương pháp support vector machine
Ngày tải lên :
19/02/2014, 09:07
... hoá từ:
2
2
1
m
thành
∑
+
i
i
Cm
ξ
2
2
1
^ ]
Luận văn Thạc sỹ
28
Support Vector Machine
CHƯƠNG 2. SUPPORT VECTOR MACHINE
Chương này tác giả sẽ đề cập tới quá trình hình thành và một số ... Discovery in Database Khai phá tri thức trong CSDL
KNN
K Neighbourhood Nearest K láng giêng gần nhất
ODM
Oracle Data Mining Khai phá dữ liệu Oracle
SVM
Support Vector Machine Máy học vector hỗ ...
41
Support Vector Machine
2.4. Một số phương pháp Kernel
Trong những năm gần đây, một vài máy học kernel, như Kernel
Principal Component Analysis, Kernel Fisher Discriminant và Support Vector...
- 99
- 1.6K
- 28
Báo cáo khoa học: Control of mammalian gene expression by amino acids, especially glutamine potx
Ngày tải lên :
07/03/2014, 00:20
... Analysis of gene expression in homocysteine-
injured vascular endothelial cells: demonstration of
GRP78/BiP expression, cloning and characterization
of a novel reducing agent-tunicamycin regulated gene.
Semin ... on ASS gene expression via a decrease in the
nuclear amount of NF-jB [44]. This illustrates that
glutamine may regulate expression of the same gene
via different pathways as a function of cell ... suppressed
the expression of CHOP mRNA in pig renal epithelial
cells lowering growth-cessation signals [86]. Con-
versely, depletion of the amino acid induced activation
of CHOP gene expression in...
- 19
- 361
- 0
Báo cáo khoa học: Oxygen control of nif gene expression in Klebsiella pneumoniae depends on NifL reduction at the cytoplasmic membrane by electrons derived from the reduced quinone pool doc
Ngày tải lên :
17/03/2014, 10:20
... FAD-moiety of purified NifL. On the basis of these
data, we postulate that under anaerobic and nitrogen-limited
conditions, NifL inhibition of NifA activity is relieved by
reduction of the FAD-cofactor ... conformation and nif -gene expres-
sion is activated by NifA. In the presence of O
2
or
ammonium, NifL antagonizes the activity of NifA resulting
in a decrease of nif -gene expression. In K. pneumoniae,the
translationally ... reduction of purified MBP–
NifL was studied in vitro at room temperature.
In the absence of a redox mediator, the FAD cofactor
of oxidized MBP–NifL was not reduced by the addition of
NADH (data not...
- 12
- 488
- 0
Báo cáo Y học: Prediction of temporal gene expression Metabolic optimization by re-distribution of enzyme activities ppt
Ngày tải lên :
17/03/2014, 10:20
... regulation; gene expression.
Microarray technologies provide the means to measure
simultaneously the expression patterns of thousands of
genes [1,2]. These expression data and the availability of
more ... (short-
term) goal of genetic regulation [23,24].
Dealing with the evolutionary optimization of gene
expression in mathematical terms requires substantial
simplifications in view of the complexity of cellular ... application of theoretical
and computational methods.
Time resolved tracing of expression levels for large sets of
genes has provided evidence that mRNA levels of metabolic
enzymes often change...
- 8
- 325
- 0
Tìm hiểu về support vector machine cho bài toán phân lớp quan điểm
Ngày tải lên :
18/03/2014, 10:25
... [-option] train_file model_file
6
CHƢƠNG 1: TÌM HIỂU VỀ SUPPORT VECTOR
MACHINE
1.1 PHÁT BIỂU BÀI TOÁN
Support Vector Machines (SVM) là kỹ thuật mới đối với việc phân lớp dữ
liệu, là ... nhau của các quan điểm và sử
dụng thuật toán Naïve Bayes (NB), Maximum Entropy (ME) và Support Vector
Machine (SVM) để phân lớp quan điểm. Phƣơng pháp này đạt độ chính xác từ 78,
7% đến 82, ... thuật lẫn ứng
dụng thực tế.
Nội dung cơ bản của luận văn bao gồm
Chương 2: Tìm hiểu về Support Vector Machine
Chương 2: Bài toán phân lớp quan điểm
Chương 3: Chương trình thực nghiệm
Phần...
- 36
- 4.1K
- 17
Báo cáo khoa học: Ablation of Sax2 gene expression prevents diet-induced obesity docx
Ngày tải lên :
28/03/2014, 23:20
... through an involvement of
Sax2 in the development of morphological structures
(e.g. brain circuits) or the regulation of the expression
of factors required for the regulation of energy homeo-
stasis. ... effect of leptin on NPY
expression [24]. Previously, we reported the deregula-
tion of NPY and POMC mRNA expression in
Sax2
) ⁄ )
mice during postnatal development [20]. The
expression levels of ... affected by lack of Sax2 gene expression
AB
CD
EF
Fig. 4. Analysis of blood glucose, insulin and leptin levels of female Sax2
+ ⁄ +
and Sax2
) ⁄ )
animals. (A) Blood glucose levels of Sax2
+ ⁄ +
and
Sax2
)...
- 12
- 344
- 0
A gene expression database for the molecular pharmacology of cancer pptx
Ngày tải lên :
30/03/2014, 13:20
... respect to drug mechanisms of action.
Gene- drug correlations on the basis of gene expression
and drug activity (AT-matrix clustering)
We analysed expression profiles of the 1,376 genes plus 40 indi-
vidually ... the
expression patterns of genes over the 60 cell lines. These correla-
tion coefficients were calculated for each combination of a gene
and a drug by taking the (normalized) level of expression of ... organ of origin as did the gene expression profiles.
The reason is clear: an individual gene can have a major impact
on the activities of a large number of drugs but, being just 1 gene
out of 1,376,...
- 9
- 484
- 0
Báo cáo khoa học: "A Novel Discourse Parser Based on Support Vector Machine Classification" docx
Ngày tải lên :
30/03/2014, 23:20
... the framework of
Rhetorical Structure Theory (RST). Our
method is based on recent advances in the
field of statistical machine learning (mul-
tivariate capabilities of Support Vector
Machines) and ... algorithmic
implementation of multiclass kernel-based vector
machines. The Journal of Machine Learning
Research, 2:265–292.
H. Hernault, P. Piwek, H. Prendinger, and M. Ishizuka.
2008. Generating dialogues ... USA.
673
Proceedings of the 47th Annual Meeting of the ACL and the 4th IJCNLP of the AFNLP, pages 665–673,
Suntec, Singapore, 2-7 August 2009.
c
2009 ACL and AFNLP
A Novel Discourse Parser Based on
Support Vector...
- 9
- 390
- 0
