eruhimov

Information about eruhimov

Published on October 12, 2007

Author: GenX

Source: authorstream.com

Content

Probabilistic Networks Library:  Probabilistic Networks Library Victor Eruhimov, Gary Bradski Microprocessor Research Lab Aalborg, September 2003 Slide2:  Library contents Linking to MATLAB Discussion Probabilistic Networks Library:  Probabilistic Networks Library Goal: implement a general purpose toolbox for working with graphical models Distribution model: not decided yet, most probably open source and free for research PNL geography:  PNL geography Development: Intel Russia Research Center, Nizhny Novgorod Igor Chikalov, Anton Pegushin, Maria Lyashko, Alexander Brusin, Denis Lagno, Vasily Tarasov, Sergey Molinov Management: Gary Bradski, Intel Santa Clara, Microprocessor Research Lab Consultant: Kevin Murphy, MIT AI lab PNL geography:  PNL geography Validation&Development: Intel China Research Center Development&Validation: Nizhny Novgorod State University, scalable version of PNL Validation: Intel Moscow State University lab PNL Alpha 3.0 is out to selected research groups Probabilistic Networks Library team, March’02:  Probabilistic Networks Library team, March’02 PNL Models:  PNL Models Bayesian networks Dynamic Bayesian Networks Markov Random Fields Factor graphs PNL Probability Distribution types:  PNL Probability Distribution types Discrete (tabular) Dense representation Sparse representation (hash) Multivariate Gaussian Conditional Multivariate Gaussian Decision tree Softmax (in progress) Exponential family (e.g. poisson) (in progress) User-defined distributions Inference algorithms:  Inference algorithms Naiive inference Belief propagation Exact for tree models Iterative in general case Loopy belief for pairwise MRFs Turbo codes Junction tree inference 1.5 Junction tree inference for DBNs Allows general fixed-lag inference BK inference Gibbs sampling Learning algorithms:  Learning algorithms EM parameter learning Can use any applicable inference engine for missing data support Iterative Proportional Fitting for MRFs Conjugated gradients (in progress) Structure learning BIC score Hill-climbing (in progress) PNL vs …:  PNL vs … BNT: Close by functionality MATLAB implementation GMTk Belief propagation Undirected models +Generalized EM +switching parent nodes Hugin Commercial No DBN Only jtree inference +Support for continuous unobserved nodes PNL vs …:  PNL vs … BNJ Junction tree only Only tabular distribution Only bayesian networks MSBN Undirected models Only tabular distribution type PNL architecture:  Model Domain PNL architecture Model Graph Inference engine EM Learning engine Structure learning Factors architecture:  Factors architecture DF DF DF DF Parameter Parameter Parameter Parameter Parameter Factor Factor Factor Factor Computing architecture:  Computing architecture Learning engine Computing engine, high level Operations on factors Inference engine Memory management Computing engine, low level Graphical models PNL languages:  PNL languages Programming language is C/C++ API is available in C++ and MATLAB. MATLAB interface is generated automatically from C++ API using SWIG environment (http://www.swig.org/). PNL WaterSprinkler sample:  PNL WaterSprinkler sample numOfNds = 4; %create adjacency matrix A = zeros(numOfNds,numOfNds); A(1,2) = 1; A(1,3) = 1; A(2,4) = 1; A(3,4) = 1; %create graph graph = CGraphCreateFromAdjMat(A); %create node types nodeTypes{1} = CNodeType(1, 2); nodeAssociation = zeros(1,numOfNds); pBNet = CBNet( numOfNds, nodeTypes, nodeAssociation, graph ); %allocate & create parameters for the model matrices = { [ 0.5, 0.5 ], [ 0.5, 0.5, 0.9, 0.1 ], [ 0.8, 0.2, 0.2, 0.8 ], [1.0, 0.0, 0.1, 0.9, 0.1, 0.9, 0.01, 0.99] }; AllocParameters(pBNet); for i=1:numOfNds CreateTabularCPD(pBNet, i-1, matrices{i}); end %enter evidence e = CEvidenceCreate(pBNet, [1 3], [0 1]); jtree = CJtreeInfEngine(pBNet); EnterEvidence(jtree, e); %create query for inference query = [0 1]; MarginalNodes(jtree, query); margPot = GetQueryJPD(jtree); matrix = GetMatrix(margPot, 'matTable'); MATLAB interface generator:  MATLAB interface generator Roadmap:  Roadmap PNL Alpha 3.0 is out to selected research groups First public beta version is to be released in the end of 2003 Gold release: August 2004 Data driven superresolution:  Data driven superresolution Create a powerful digital zooming algorithm capable of high quality 4x zooming of a single image. Currently we use Markov Random Fields to solve a regularization problem on images (the inference algorithm is taken from PNL) Data-driven superresolution:  Data-driven superresolution PearlEng = CPearlInfEngineCreate(mrf_f); SetMaxNumberOfIterations( PearlEng, global_max_iter ); EnterEvidence( PearlEng, evidence_f, maximize ); % ************************************** max_index = zeros(nnodes/2,1); MarginalNodes( PearlEng, [i - 1] ); mpe = GetMPE(PearlEng); [nodeNums, nodeVals, nt] = GetObsNodesWithValues(mpe); max_index(i) = nodeVals{1}; Slide22:  For more details, visit PNL homepage http://www.intel.com/research/mrl/pnl/

Related presentations


Other presentations created by GenX

emailett
19. 06. 2007
0 views

emailett

Presentations Tips
04. 10. 2007
0 views

Presentations Tips

environment
09. 04. 2008
0 views

environment

Final for printing
22. 04. 2008
0 views

Final for printing

AirCanadaJacquesCher rier
17. 04. 2008
0 views

AirCanadaJacquesCher rier

FedFundsRate
14. 04. 2008
0 views

FedFundsRate

020523 Ryanair
13. 04. 2008
0 views

020523 Ryanair

alicia
10. 04. 2008
0 views

alicia

2003fslj
30. 03. 2008
0 views

2003fslj

Dr Cheung Powerpoint
28. 03. 2008
0 views

Dr Cheung Powerpoint

TravelMedicine
27. 03. 2008
0 views

TravelMedicine

3GPP Beijing FMC challenges
24. 09. 2007
0 views

3GPP Beijing FMC challenges

vesterynodocritico
01. 10. 2007
0 views

vesterynodocritico

Beautifulthoughts
03. 10. 2007
0 views

Beautifulthoughts

jt email security tutorial
07. 10. 2007
0 views

jt email security tutorial

Nervoussystem
12. 10. 2007
0 views

Nervoussystem

mexico ft3 17 al 5 maroc r
23. 10. 2007
0 views

mexico ft3 17 al 5 maroc r

one
29. 08. 2007
0 views

one

wong
29. 08. 2007
0 views

wong

3 Tourtellot partnersday
01. 11. 2007
0 views

3 Tourtellot partnersday

1b bhopal
07. 11. 2007
0 views

1b bhopal

bulent kilincarslan
15. 11. 2007
0 views

bulent kilincarslan

1c Peacehaven Community School
22. 11. 2007
0 views

1c Peacehaven Community School

Single Issue Bargaining 3
24. 11. 2007
0 views

Single Issue Bargaining 3

PersonalityTraits
11. 08. 2007
0 views

PersonalityTraits

personality disorders AETC
11. 08. 2007
0 views

personality disorders AETC

Water and Mantle Melting
30. 12. 2007
0 views

Water and Mantle Melting

lecture 8 predation
01. 01. 2008
0 views

lecture 8 predation

millionaire Rain Forest
03. 01. 2008
0 views

millionaire Rain Forest

Security and SDLC May 2006
11. 08. 2007
0 views

Security and SDLC May 2006

SCN Obesity poverty SEA Mar 2006
11. 08. 2007
0 views

SCN Obesity poverty SEA Mar 2006

story davis
11. 08. 2007
0 views

story davis

Sally Wilkins presentation
11. 08. 2007
0 views

Sally Wilkins presentation

SORB
11. 08. 2007
0 views

SORB

The Burden of Asthma PowerPoint
11. 08. 2007
0 views

The Burden of Asthma PowerPoint

Student Life
11. 08. 2007
0 views

Student Life

Personality Student Presentation
11. 08. 2007
0 views

Personality Student Presentation

Legal farm lease laws May 23
29. 12. 2007
0 views

Legal farm lease laws May 23

OAC Online Power Point
08. 08. 2007
0 views

OAC Online Power Point

MBTI
08. 08. 2007
0 views

MBTI

lecture5 ERD
08. 08. 2007
0 views

lecture5 ERD

Nutritional Labeling Loureiro
08. 08. 2007
0 views

Nutritional Labeling Loureiro

obesity epidemic
08. 08. 2007
0 views

obesity epidemic

Case10 Film
09. 10. 2007
0 views

Case10 Film

verbs gone wild
10. 10. 2007
0 views

verbs gone wild

Sound and Sense ch4
11. 08. 2007
0 views

Sound and Sense ch4

personage
11. 08. 2007
0 views

personage

19 CPH submm 2
29. 08. 2007
0 views

19 CPH submm 2

mutunga
29. 08. 2007
0 views

mutunga

sxu 4 05 06
11. 08. 2007
0 views

sxu 4 05 06

Agency brief Event
14. 12. 2007
0 views

Agency brief Event

Phyllis Reed
11. 08. 2007
0 views

Phyllis Reed

A 3 Alejandro Perez de Cardenas
24. 02. 2008
0 views

A 3 Alejandro Perez de Cardenas

Cdr Hazard
26. 02. 2008
0 views

Cdr Hazard

2003 surface coal Fatalities
28. 02. 2008
0 views

2003 surface coal Fatalities

chinasiamauto
12. 10. 2007
0 views

chinasiamauto

20031024164648 redcross
22. 10. 2007
0 views

20031024164648 redcross

porciano kyoto
29. 08. 2007
0 views

porciano kyoto

BK
12. 03. 2008
0 views

BK

AAS Science RolfK
29. 08. 2007
0 views

AAS Science RolfK

marmur presentation
24. 09. 2007
0 views

marmur presentation

07 China Qing Dynasty
25. 03. 2008
0 views

07 China Qing Dynasty

MN final1
24. 09. 2007
0 views

MN final1

Willman irvine
29. 08. 2007
0 views

Willman irvine

WW II
09. 10. 2007
0 views

WW II

dorsdl2006 arrow
19. 06. 2007
0 views

dorsdl2006 arrow

DogacIHC
19. 06. 2007
0 views

DogacIHC

Global HIV 1
19. 06. 2007
0 views

Global HIV 1

gepo2 1
19. 06. 2007
0 views

gepo2 1

gautron egsr2004 hemispherical
19. 06. 2007
0 views

gautron egsr2004 hemispherical

Funktionalismus
19. 06. 2007
0 views

Funktionalismus

front2
19. 06. 2007
0 views

front2

Feynman Diagram Tool Kit5
19. 06. 2007
0 views

Feynman Diagram Tool Kit5

etd2004open
19. 06. 2007
0 views

etd2004open

etd2004close
19. 06. 2007
0 views

etd2004close

ERM COSO Presentation
19. 06. 2007
0 views

ERM COSO Presentation

engineering review
19. 06. 2007
0 views

engineering review

embrace WP3 july 2005
19. 06. 2007
0 views

embrace WP3 july 2005

Egee VicoEquense
19. 06. 2007
0 views

Egee VicoEquense

efum050928payette
19. 06. 2007
0 views

efum050928payette

liu cgi06 talk
12. 10. 2007
0 views

liu cgi06 talk

haplotyping
19. 02. 2008
0 views

haplotyping

folleto adefa sonrisas 0km
16. 11. 2007
0 views

folleto adefa sonrisas 0km

Steady State Revolution Only
07. 12. 2007
0 views

Steady State Revolution Only

AAS Kalogera
29. 08. 2007
0 views

AAS Kalogera

Cherese and Kristy ppt
22. 10. 2007
0 views

Cherese and Kristy ppt

PP Modul Ausstattung WMV
20. 02. 2008
0 views

PP Modul Ausstattung WMV

478
16. 06. 2007
0 views

478

TEEN Final
11. 08. 2007
0 views

TEEN Final

17 Marel
14. 03. 2008
0 views

17 Marel

Stamatiou
29. 10. 2007
0 views

Stamatiou

Let No Deed Go Unpunished
24. 09. 2007
0 views

Let No Deed Go Unpunished

Purity 2
11. 08. 2007
0 views

Purity 2

McKenzie1
08. 08. 2007
0 views

McKenzie1

The Song Of Solomon
11. 08. 2007
0 views

The Song Of Solomon

rhileman
07. 11. 2007
0 views

rhileman

eales
19. 06. 2007
0 views

eales

simmons
12. 10. 2007
0 views

simmons

SA Articulation 2006 01 20
24. 09. 2007
0 views

SA Articulation 2006 01 20

Lect12S07
08. 08. 2007
0 views

Lect12S07

Agris Koppel
20. 11. 2007
0 views

Agris Koppel

Odyssey 000
29. 02. 2008
0 views

Odyssey 000

Femi April20
24. 09. 2007
0 views

Femi April20

Recruit Adults
11. 08. 2007
0 views

Recruit Adults

enso evolution status fcsts web
19. 06. 2007
0 views

enso evolution status fcsts web

kinsingerl
08. 08. 2007
0 views

kinsingerl

mark fowler
06. 03. 2008
0 views

mark fowler

resseccoes
28. 12. 2007
0 views

resseccoes