MIT 6 . 851 Advanced Data Structures

6 . 851 : Advanced Data Structures Spring 2012 Lecture 18 — April 26 , 2012

6 . 851 : Advanced Data Structures Spring 2007 Lecture 7 — March 5 , 2007

There are two primary models of temporal data structures. The first, called persistence, is based on the branching-universe model of time travel. In this model, going back in time and making changes creates a new branch of the data structure that differs from the original branch. The second, called retroactivity, works on the idea of round-trip time travel. Here, a time traveller goes back in t...

6 . 851 : Advanced Data Structures Spring 2012 Lecture 12 — April 3 , 2012

We continue our analysis of integer data structures, focusing this lecture on fusion trees. This structure employs some neat bit tricks and word-level parallelism. In particular, we discuss the following techniques necessary to understand the workings of a fusion tree: sketching, which allows certain w-bit words to be compressed to less than w bits, parallel comparison, where multiple words can...

Network Analysis of Local Stakeholders in the village of Gezir for Water Resources Co-management

Co-management of water resources is one of the most important managerial approaches in water resources; its achievement requires the strengthening of social capital; also, the role of water resources Local Stakeholders in increasing the amount of this capital is undeniable. The social network analysis approach is one of the strategies that will examine the pattern of relationships between Local...

Toward Emotionally Accessible Massive Open Online Courses (MOOCs)

This paper outlines an approach to evaluating the emotional content of three Massive Open Online Courses (MOOCs) using the affective computing approach of prosody detection on two different text-to-speech voices in conjunction with human raters judging the emotional content of course text. The intent of this work is to establish the potential variation on the emotional delivery of MOOC material...