support vector machine classification ppt
phân loại văn bản bằng phương pháp support vector machine
Ngày tải lên :
19/02/2014, 09:07
... hoá từ:
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Luận văn Thạc sỹ
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Support Vector Machine
CHƯƠNG 2. SUPPORT VECTOR MACHINE
Chương này tác giả sẽ đề cập tới quá trình hình thành và một số ...
SVM
Support Vector Machine Máy học vector hỗ trợ
SRM
Structural Risk Minimization Tối thiểu hoá rủi ro cấu trúc
VC
Vapnik-Chervonenkis Chiều VC
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Luận văn Thạc sỹ
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Support Vector ...
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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...
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Tài liệu Báo cáo khoa học: "Support Vector Machines for Query-focused Summarization trained and evaluated on Pyramid data" ppt
Ngày tải lên :
20/02/2014, 12:20
... Sessions, pages 57–60,
Prague, June 2007.
c
2007 Association for Computational Linguistics
Support Vector Machines for Query-focused Summarization trained and
evaluated on Pyramid data
Maria Fuentes
TALP ... Center
Universitat Polit`ecnica de Catalunya
horacio@lsi.upc.edu
Abstract
This paper presents the use of Support
Vector Machines (SVM) to detect rele-
vant information to be included in a query-
focused summary. ... several
models trained from the information in the DUC-
2006 manual pyramid annotations using Support
Vector Machines (SVM). The evaluation, performed
on the DUC-2005 data, has allowed us to discover
the...
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Tài liệu High Performance Computing on Vector Systems-P2 pptx
Ngày tải lên :
24/12/2013, 19:15
... originally developed for high-performance vector com-
puters such as CRAY, NEC or Fujitsu, it achieves high vectorization ratios
(> 99.8%). In the context of vectorization, three different types ... dependencies. These loops are easy to
vectorize, their loop length is much larger than the length of the vector
registers and they run at high performance on all vector architectures. They
show up ... the
performance increases with increasing vector length and saturates at an efficiency
Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.
The NEC SX-8 Vector Supercomputer System 23
Fig....
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Tài liệu High Performance Computing on Vector Systems-P3 ppt
Ngày tải lên :
24/12/2013, 19:15
... [11]. The
algorithm requires memory space to store six vectors, i.e., the residual vector w
i
,
the search direction vector p
i
, and the eigenvector x
i
,moreover,W
i
, P
i
,andX
i
.
Thus, the memory ... H.A., Dekker K.: Vectorization of Linear Recurrence Relations. SIAM J. Sci.
Stat. Comput., Vol. 10, No. 1 (1989) 27–35
14. Imamura T.: A Group of Retry-type Algorithms on a Vector Computer. IPSJ,
Trans., ... part of our code is the matrix-
vector multiplication in both the Lanczos and the PCG methods. We estimate
the message size issued on each node in the matrix -vector multiplication as
8N/P
2
[Byte]....
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Tài liệu High Performance Computing on Vector Systems-P8 pptx
Ngày tải lên :
24/12/2013, 19:15
... CPU of the NEC
machines is between 26% and 30% of the peak performance. Given that in any
case only 17 energy bins have been used in these tests, and that therefore the
average vector length achieved ... an
architecture where vector lengths 256 are considered optimal), this computa-
tional rate appears quite satisfactory. Improvements are still possible, though,
and optimization of the code on NEC machines ... eigenfunctions
obtained from linear stability theory.
2.6 Parallelization
To use the full potential of the new vector computer at HLRS, we have chosen
a hybrid parallelization of both MPI [12] and Microtasking....
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Tài liệu CCNP Support Exam Certification Guide ppt
Ngày tải lên :
17/01/2014, 09:20
... Needed by Technical Support 143
General Information 143
Crash Situations 144
Performance Degradation Situations 144
Loss of Functionality Situations 144
Output of the show tech -support Command 144
Terms ... will need to master to pass the CCNP
Support exam:
Objective Description
1 List the tools and resources available for problem prevention,
troubleshooting, and support.
2 Understand what each tool ... attention as they are
given a special weight in the Support exam.
Chapter 11
Troubleshooting ISDN BRI is the topic of this final chapter. The Support exam has
developed a reputation for being...
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Tài liệu Báo cáo khoa học: "Experiments in Semantic Classification" pptx
Ngày tải lên :
19/02/2014, 19:20
... function of the degree of refinement of the
row classification, but we could easily have several
rows for a word in one clump, with quite a crude
classification. Perhaps the best way of dealing ... two procedures must, moreover, give us the re-
fined, precise and machine- usable semantic classifica-
tion that we require for machine translation.
The Specification of Word Uses
Definitions ... semantic classification out of them. This is be-
cause synonymy relations between words reflect the
way we look at extra-linguistic references.
To revert to the earlier problem of classification. ...
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Tài liệu Báo cáo khoa học: "Bilingual Sense Similarity for Statistical Machine Translation" ppt
Ngày tải lên :
20/02/2014, 04:20
... size for
the vector, since it is not necessary to do vector
mapping as the vectors are in the same language.
),(
cooc
e
cooc
f
CCsim
computes the similarity between
the context vectors when ... Therefore, we map all vectors in
target language into the vector space in the
source language. What we want is a representa-
tion
a
v
v
in the source language space of the target
vector
e
v
v
. ... translation of
e
B
, and is the IBM model 1
probability.
4.2 Vector Space Mapping
A common way to calculate semantic similarity
is by vector space cosine distance; we will also
836
similarity...
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