Text Mining and Classification
What is Data Mining?
the study of collecting, cleaning, processing,
analyzing, and gaining useful insights from data
(Data Mining: The Textbook, Charu C. Aggarwal, Springer 2015)
collection - sensors, surveys, software too
Clustering
As usual, some slides or portions of
slides taken from:
R. Mooney, T. Mitchell, Intro to IR
What if we do not have labeled examples?
Examples:
Calls to a help desk? We dont know the areas that are going to
have problems!
Articles what are t
Mehryar Mohri
Foundations of Machine Learning 2015
Courant Institute of Mathematical Sciences
Homework assignment 3
November 24, 2015
Due: December 07, 2015
A. Boosting-type Algorithm
1. Show that for all u R and integer p > 1, 1u0 p (u) where
p (u) = max
Mehryar Mohri
Foundations of Machine Learning 2015
Courant Institute of Mathematical Sciences
Homework assignment 2
October 23, 2015
Due: November 09, 2015
A. VC-dimension of convex combinations
1. Let H be a family of functions mapping from an input spac
Some slides taken from (see Week 2) and R.
Mooney and T. Mitchell
K- Nearest Neighbor
(William Cohen)
Training method:
Save the training examples
At prediction time:
Find the k training examples (x1,y1),(xk,yk) that are closest to
the test example x
Support Vector Machines: Linear Separators
Binary classification can be viewed as the task of
separating classes in feature space:
wTx + b = 0
wTx + b > 0
wTx + b < 0
f(x) = sign(wTx + b)
Linear Separators
Which of the linear separators is optimal?
Clas
Mehryar Mohri
Foundations of Machine Learning
Courant Institute of Mathematical Sciences
Homework assignment 3
October 31, 2016
Due: A. November 11, 2016; B. November 22, 2016
A. Boosting
1. Implement AdaBoost with boosting stumps and apply the algorithm
Mehryar Mohri
Foundations of Machine Learning
Courant Institute of Mathematical Sciences
Homework assignment 1
September 17, 2016
Due: October 04, 2016
A. Probability tools
1. Let f : (0, +) R+ be a function admitting an inverse f 1 and let X be
a random
Mehryar Mohri
Foundations of Machine Learning
Courant Institute of Mathematical Sciences
Homework assignment 1
September 16, 2016
Due: October 04, 2016
A. Probability tools
1. Let f : (0, +) R be a function admitting an inverse f 1 and let X be
a random v
Mehryar Mohri
Foundations of Machine Learning
Courant Institute of Mathematical Sciences
Homework assignment 2
October 04, 2016
Due: October 18, 2016
A. Rademacher complexity
The definitions and notation are those introduced in the lectures slides.
1. Wha
CSc 85030 Cryptography
Due by Tuesday, 11/10/2015
First Name: Amir Mohsen
Last Name: Toliyat Abolhassani
Student ID Number: 000130905
(Exercises from Knowledge Protocols paper, page 25)
Email: [email protected]
GC Email: [email protected]
Exe
( Exercises from Commitment Schemes and Zero Knowledge Protocols)
CSc 85030 Cryptography
Due by Tuesday, 10/13/2015
First Name: Amir Mohsen
Last Name: Toliyat Abolhassani
Student ID Number: 000130905
Email: [email protected]
GC Email: [email protected]
CSc 85030 Cryptographic Protocol
Summary 9: On -protocols
Due by Wednesday, 11/29/2015
Student ID Number: 000130905
First Name: Amir Mohsen
Email: [email protected]
Last Name: Toliyat Abolhassani
G.C. email: [email protected]
Schnorr protocol
CSc 85030 Cryptographic Protocol
Due by Wednesday, 11/18/2015
First Name: Amir Mohsen
Last Name: Toliyat Abolhassani
Summary 7: Secret Sharing
Student ID Number: 000130905
Email: [email protected]
G.C. email: [email protected]
Introduction: S
CSc 85030 Cryptographic Protocol
Summary 5: Zero-Knowledge Protocols
Due by Thursday, 10/28/2015
Student ID Number: 000130905
First Name: Amir Mohsen
Email: [email protected]
Last Name: Toliyat Abolhassani
G.C. email: [email protected]
Introduction: A
CSc 85030 Cryptographic Protocol
Summary 4: bit commitment using Pseudo-Random
Due by Thursday, 10/22/2015
Student ID Number: 000130905
First Name: Amir Mohsen
Email: [email protected]
Last Name: Toliyat Abolhassani
G.C. email: [email protected]
CSc 85030 Cryptographic Protocol
Summary 3: Commitment Schemes
Due by Thursday, 10/8/2015
Student ID Number: 000130905
First Name: Amir Mohsen
Email: [email protected]
Last Name: Toliyat Abolhassani
G.C. email: [email protected]
Introduction: The main
CSc 85030 Cryptographic Protocol
Summary 2, Public Key Secure against Adaptive Chosen Ciphertext Attack ,
First Name: Amir Mohsen
Student ID Number: 000130905
Email: [email protected]
Introduction:
Due by Wednesday, 10/7/2015
Last Name: Toliyat Abolhass
CSc 85030 Cryptographic Protocol
Summary 1
Due by Sunday, 09/27/2015
First Name: Amir Mohsen
Student ID Number: 000130905
Email: [email protected]
Introduction
Last Name: Toliyat Abolhassani
GC Email: [email protected]
This paper gives us a t
A Practical Public Key Cryptosystem Provably
Secure against Adaptive Chosen Ciphertext
Attack
Ronald Cramer1 and Victor Shoup2
1
Institute for Theoretical Computer Science, ETH Zurich,
8092 Zurich, Switzerland
[email protected]
2
IBM Zurich Research Labo
Midterm Exam
CMPSCI 453: Computer Networks
Fall 2010
Prof. Jim Kurose
Instructions:
Please use two exam blue books answer questions 1, 2 in one book, and the remaining
two questions in the second blue book.
Put your name and student number on the exam b
Midterm Exam
CMPSCI 453: Computer Networks
Fall 2011
Prof. Jim Kurose
Instructions:
There are 4 questions on this exam.
Please use two exam blue books answer questions 1, 2 in one book, and the remaining
two questions in the second blue book.
Put your
Data Networks Summer 2007
Midterm Exam
Name: _
Email: _
Student ID: _
Problems
Points
1
2
3
4
5
Total
1
1 (20 points) Circuit switching vs datagram packet switching.
(a) State two reasons why circuit switching can provide more predictable communication
pe
KINGDOM OF SAUDI ARABIA
Ministry of Higher Education
Princess Norah University
College of Computer and
Information Sciences
Mid-Term Exam 02
High Speed Networks (NET 456)
NO Authorized Document
Duration: 75 minutes
Dr. Anis Koubaa
Questions are gener
KINGDOM OF SAUDI ARABIA
Ministry of Higher Education
Princess Norah University
College of Computer and
Information Sciences
" !
& %$
(
Mid-Term Exam 03
High Speed Networks (NET 456)
NO Authorized Document
Duration: 75 minutes
Dr. Anis Koubaa
Questi
Network Industries [Econ 490(2)]: Midterm exam (2008/10/22)
Abbreviated Solution
Page 1 of 4
(1a) [7 points] Each resident takes the demand by all other residents qj for i = j as given and chooses
her Internet usage level qi to maximize the above utility.
The University of Utah ECE 6962-003: Fundamentals of Wireless Networking, Spring 2007 Midterm I Practice Exam
SOLUTIONS
Time: 80 minutes
Instructions: This is a closed book exam, you are allowed to have one sheet of notes (no photocopies or print-outs, bo