Automated Attendance and

cribabsurdΗλεκτρονική - Συσκευές

27 Νοε 2013 (πριν από 3 χρόνια και 8 μήνες)

206 εμφανίσεις

Center for Identification Technology Research (
CITeR
)

An NSF Industry University Cooperative Research Center

Automated Attendance and
Exam Systems

Dr.
Venu

Govindaraju


University at Buffalo

Center for Identification Technology Research (
CITeR
)

An NSF Industry University Cooperative Research Center

Outline



Attendance



Learning



Invigilation



Grading



Challenges
ahead



Education in the Internet era ?

Center for Identification Technology Research (
CITeR
)

An NSF Industry University Cooperative Research Center

Time and Attendance


RFID


Biometrics

Center for Identification Technology Research (
CITeR
)

An NSF Industry University Cooperative Research Center

First
Aadhaar

number issued:
September
29,
2010

ID


User
-
friendly

modalities


False rejects


Remote
authentication


Center for Identification Technology Research (
CITeR
)

An NSF Industry University Cooperative Research Center

Biometric Modalities

Fingerprint

Face

Iris

Vascular

Palm

Hand

Voice

Signature

Gait

Ear

Retina

DNA

Keystroke

PHYSICAL


BEHAVIORAL

Center for Identification Technology Research (
CITeR
)

An NSF Industry University Cooperative Research Center

Learning

Multilingual Digital Library

Searchable
repository

Provide relevant, distilled,
actionable information
automatically

(
for a non
-
native user)

Center for Identification Technology Research (
CITeR
)

An NSF Industry University Cooperative Research Center

MOOC

The Economist, July 2013

Center for Identification Technology Research (
CITeR
)

An NSF Industry University Cooperative Research Center

Grading


Keeping tabs on student progress


I
dentifying areas needing help


Center for Identification Technology Research (
CITeR
)

An NSF Industry University Cooperative Research Center

AES

Automatic Essay Scoring

ML approaches:


Q
ualitative evaluation to a scoring rubric derived from calibrated peer review


Bag of keywords
-

“cat chased the mouse “
vs

“mouse chased the cat”, rare words etc.


Large training sets are counter productive ; learning at the question level.


How does machine learn logical proofs? Metaphors? Humor?


How do you give feedback to students?

Center for Identification Technology Research (
CITeR
)

An NSF Industry University Cooperative Research Center

Invigilation


Who wrote the exam?


Remote authentication

Center for Identification Technology Research (
CITeR
)

An NSF Industry University Cooperative Research Center



Emotion driven facial expressions
originate in different neuroanatomical
substrates than posed expressions
(subcortical v. motor strip)



Are they “learning”?

Facial Expressions

Center for Identification Technology Research (
CITeR
)

An NSF Industry University Cooperative Research Center

Challenges


K
-
12



Holding student interest in online course



Grading



Rural India: power, computers, connectivity