Research Interests
Javier Rojo
MS Statistics -- Stanford University
PhD Statistics -- University of California at Berkeley
1. Statistical Decision Theory
2. Empirical Processes
3. Bioinformatics, Biostatistics, Survival Analysis
4. Multivariate Methods -- Dimension reduction -- Random Matrices
5. Extreme Value Theory -- Levy Processes -- Environmental Applications
6. Modeling of the Power Grid -- Reliability Theory
7. Partial Orderings of Distribution Functions -- Heavy-Tailed behavior
8. Ordered Restricted Inference
Some of my favorite books:
The death of Ivan Ilych -- Tolstoy
Crime and Punishment -- Dostoevsky
El Laberinto de la Soledad -- Octavio Paz
Sor Juana Ines de la Cruz -- Octavio Paz
God’s Equation -- Amir Aczel

LIVER TRANSPLANTATION 14:1125-1132, 2008
ORIGINAL ARTICLE
Analysis of Recent Pediatric Orthotopic Liver
Transplantation Outcomes Indicates That
Allograft Type Is No Longer a Predictor of
Survivals
Natasha S. Becker,1 Neal R. Barshes,1 Thomas A. Aloia,1 Tuan Nguyen,2 Javier Rojo,2
Joel A. Rodriguez,1 Christine A. O’Mahony,1 Saul J. Karpen,3 and John A. Goss1
1
Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston TX; 2Department of
Statistics, Rice University, Houston, TX; and 3Department of Pediatrics, Section of Gastroenterology,
Hepatology, and Nutrition, Children’s Hospital, Houston, TX

ALLOGRAFT TYPE FOR PEDRIATIC LIVER TRANSPLANTATION 1129
A
100
p=NS
% Patient Survival
WLT
patient survival, adjusted %
Figure 1. (A) Adjusted 1-year
95
patient survivals by liver allo-
% Survival
WLT
LDLT
graft type (patients < 12 years
of age). The solid line repre-
LDLT
sents whole liver allografts (n
659), the small dashed line
DDSLT
CSLT
represents living donor liver SEG
90
transplants (n 189), and the
large dashed line represents
deceased donor segmental
liver transplants (n 412; P
values for pairwise compari-
sons: LDLT versus WLT, 0.52;
85
DDSLT versus LDLT, 0.30;
and WLT versus DDSLT, 0 2 4 6 8 10 12
0.08). The y axis shows surviv-
Months after OLT
time after OLT (months)
als reported from 85% to
100%. (B) Adjusted 1-year allo-
B
graft survivals by liver allo-
100
graft type (patients < 12 years
p=NS
of age). The solid line repre-
Patient Survival
sents whole liver allografts (n
95
589), the small dashed line
djusted %
represents living donor liver
transplants (n 168), and the
% % Survi val
large dashed line represents
90
Allograft
deceased donor segmental
graft survival, a
LDLT
liver transplants (n 382; P
LDLT
values for pairwise compari-
85
sons: LDLT versus WLT, 0.42;
WLT
WLT
DDSLT versus LDLT, 0.07;
and WLT versus DDSLT,
0.17). The y axis shows surviv-
CSLT
80
DDSLT
als reported from 75% to SEG
100%. Abbreviations: DDSLT,
deceased donor segmental
75
liver transplantation; LDLT,
living-donor liver transplanta-
0 2 4 6 8 10 12
tion; OLT, orthotopic liver
transplantation; WLT, whole
Months after OLT
time after OLT (months)
liver transplantation.

The Lehmann Symposia -- Optimality
Javier Rojo, Chair and Organizer
First -- held at CIMAT Guanajuato Mexico, May 2002
Second -- held @ Rice University, May 2004
Third -- held @ Rice University, May 2007
FOURTH -- venue TBA, May 2010
Edited the first two volumes of the Symposia -- IMS LNMS
Currently Editing the third volume
Support from The National Science Foundation
Pfizer, MSRI, SAMSI, MD Anderson Cancer Center, UT Health Science Center Houston,
Rice Statistics Department is gratefully acknowledged

Pan-American Advanced Studies Institute
Javier Rojo, PI
Organizer and Chair
1. Travel support for Grad Students, Postdocs, Young faculty
2. Travel to CIMAT (Center for Mathematical Research)
3. Cutting-edge program in
a) Bioinformatics, Biostatistics, Survival
b) Multivariate Methods -- Dimension reduction
c) Statistical finance -- Levy Processes
Supported by
The National Science Foundation

Pan-American Advanced Studies Institute
Semana de bioinformatica, bioestadistica, analysis de supervivencia
Javier Rojo -- Chair
Rudy Guerra (Rice) Rafael Irrizarry (Johns Hopkins)
Claudia Rangel (Instituto Nacional de Medicina Genetica - INMEGEN)
Javier Rojo y Jose Luis Batun (Universidad de Yucatan) Tuan Nguyen (Rice)
Semana en Metodos de Reduccion de Dimension
Javier Trejos -- Chair Hadley Wickham & Yin Zhang (Rice)
Mario Villalobos Javier Trejos (Universidad de Costa Rica)
Alex Murillo Eduardo Piza (Universidad de Costa Rica)
Tuan Nguyen (Rice) Alex Murillo (Universidad de Costa Rica)
Metodos Matematicos y Estadisticos en Finanzas
Daniel Hernandez -- Chair
Begona Fernandez (UNAM) Daniel Hernandez (CIMAT)
Jaime San Martin (Universidad de Chile) Jose Enrique Figueroa (Purdue)
Ernesto Mordecki (Universidad de la Republica, Uruguay)
Supported by The National Science Foundation

RICE UNIVERSITY SUMMER INSTITUTE OF STATISTICS
Javier Rojo, Director
http://www.stat.rice.edu/~jrojo
Application/Information for summer 2009
will be posted by November 20.
Deadline for applying is March 15th.
Support from
The National Science Foundation
The National Security Agency
is gratefully acknowledged

Summer activities include outings to:
• NASA, MD Anderson Cancer Center
• Astros games
• Lunch with various groups
• International travel to beautiful El Salvador
and Mexico

Other student activities
Stacey E. Ackerman
2005 SACNAS - 2nd Place
Oscar Rojo,
Neeraj Pradhan,
Jonathan Skowera,
Karl Calderon
Posing by the
Astronauts Flight
Simulators -- NASA
Juan Gallegos
2004 SACNAS
Juan is now PhD student
At the Texas Health Science
Center in Houston

SUMMER 2009
Students will spend 2 to 3 weeks in Centro de Investigacion en Matematicas
Participation in the PanAmerican Advanced Studies Institute (NSF funded)
1. Dimension Reduction
2. Biostatistics/Bioinformatics, Survival Analysis, Statistical Genetics
3. Stochastic Processes, Levy Processes, Mathematical Finance

SUMMER 2009
Colonial Guanajuato will be
the venue for the
PanAmerican Advanced
Studies Institute
RUSIS Students will have an
opportunity to participate in
great technical and
networking sessions

Other Interests …..

Favorite quotation:
It can also be pointed out that data-driven knowledge may, in some
instances hinder theoretical developments. A case in point is Einstein’s
cosmological constant. Here are two excerpts from “God’s Equation” by
Amir D. Aczel.
“So Einstein did what seemed right to him –he ignored what his theory
told him, and sought to change the theory to suit the reality he saw: a
static universe that somehow doesn’t fall inwards to its center.” And
“… Einstein would never be able to live down its creation. The
cosmological constant would haunt him for the rest of his life.”
JR