IST4_lec2

IST4_lec2 - IST 4 Information and Logic IST 4: Planned...

Info iconThis preview shows pages 1–19. Sign up to view the full content.

View Full Document Right Arrow Icon
IST 4 Information and Logic
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
mon tue wed thr fri 31 M1 1 7 M1 14 2 1 21 3 2 28 3 5 4 12 5 4 19 26 6 5 2 6 IST 4: Planned Schedule – Spring 2008 x= hw#x out x= hw#x due = today T T Mx= MQx out Mx= MQx due midterms midterms
Background image of page 2
• You are invited to write short essay on the topic of the Magenta Question. This is for extra credit Recommended length is 2-3 pages (not more) Submit the essay in PDF format to ta4@paradise.caltech.edu No collaboration. No extensions People with an Unusual Memory MQ Deadline, Thursday 4/10/2008 Grading of MQ: 8% of a homework set 4 for content quality, 4 for writing quality Some students will be given an opportunity to give a short presentation for up to 8 additional points!
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
A Hat Puzzle ist A ‘mysterious’ number representation system?? ?? What is the base 10 representation?
Background image of page 4
Last Lecture
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Magical Precision In process (time) and structure (geometry) In information storage and associative recall It is ‘Magic’ because do not know how to design and build systems that do it!!
Background image of page 6
C B A + 1212 0122 3201 2111 4100 2A D C + 1021 3010 This Amazing Precision is Controlled By Stochastic Chemical Reactions The probability for a reaction to happen is a function of the number of molecules (#A x #B) or (#C x #D)
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The Challenge descriptions descriptions descriptions descriptions descriptions descriptions Need to achieve compression of knowledge through deeper understanding MATHMETICAL ABSTARCTIONS
Background image of page 8
The Challenge Biology = stochastic networks Syntax = ????? reasoning descriptions descriptions descriptions descriptions descriptions descriptions Need to achieve compression of knowledge through deeper understanding MATHMETICAL ABSTARCTIONS
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Abstractions in Information Systems Physics = relay circuits Syntax = Boolean algebra reasoning Learn from our success. .. Intel’s Xeon: more than 1,000,000,000 transistors
Background image of page 10
Key Motivation for IST 4 Understand the process that led to ....... so we have the tools to develop abstractions for analyzing and designing other information systems. ...
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Abstractions ( Logic ) in Information Systems CONTEXT some CONTENT Present: What do we have? learning to USE what we have IST 4- Information and Logic: What are the key ideas and the thought processes related to our current ability to process information with physical substrates? Past: How did we get here? Future: What are the challenges? IST4 is focusing on
Background image of page 12
Abstractions sensory forms natural language numbers counting formal languages syntax- mathematics computing
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The Number Sense Animals and babies have a number sense: - Effortlessly recognize 1, 2 and 3 items - Challenged beyond four
Background image of page 14
Three are Many- Ancient Egyptian Water = 3 x wave Hair = 3 x hair Weep = eye with 3 tears
Background image of page 15

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The Number Sense What Can Adults Do?
Background image of page 16
What Can Adults Do? Mandler and Shebo, 1982 6 Verbal response to presentation of single digits
Background image of page 17

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
What Can Adults Do?
Background image of page 18
Image of page 19
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/12/2009 for the course IST 4 taught by Professor Shuki during the Spring '09 term at Caltech.

Page1 / 86

IST4_lec2 - IST 4 Information and Logic IST 4: Planned...

This preview shows document pages 1 - 19. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online