SocViz: Visualization of Facebook Data
|
|
- Gervase Holt
- 6 years ago
- Views:
Transcription
1 SocViz: Visualization of Facebook Data Abhinav S Bhatele Department of Computer Science University of Illinois at Urbana Champaign Urbana, IL USA bhatele2@uiuc.edu Kyratso Karahalios Department of Computer Science University of Illinois at Urbana Champaign Urbana, IL USA kkarahal@uiuc.edu Abstract Visualization of social networks is a very common theme in the field of sociology, psychology and human computer interfaces (HCI). In this paper, we describe the work done on the data obtained from a social networks website called Facebook. Facebook was started in February 2004 and is fairly popular among college students. The study involved understanding the API supported by Facebook and the range of data available to us, a user study to determine what visualizations would be the most useful to Facebook users and then the actual implementation. Implementation involved a detailed analysis of the best visualizations and feedback from user groups during the course of the project. The implementation was completed in two phases. The first phase involved visualizations of birthdays and zodiac signs of all the people in a user s social network. Different views were tested and then some finalized. The second phase involved user studies on the first phase and modifications based on them. The major part of the second phase was new visualizations for views of wall posts vs. time and for the social network based on zodiac signs. Copyright is held by the author(s). Class: CS598kgk, Fall 2006 Department of Computer Science, UIUC, Urbana, IL, USA Keywords Social network, visualization, Facebook, zodiac signs, wall posts, user studies
2 2 What attracts people most, in sum, is other people. - William H. Whyte ACM Classification Keywords J4. Computer Applications: Social and Behavioral Sciences. Keywords: Sociology, Human Factors. Introduction The last few years have seen a huge proliferation of social network websites on the internet. It started with websites like Friendster [8] and Myspace [12] and has become a never-ending spree to form the largest social networks possible. Most of these websites work on the principle of six degrees of separation formulated by Milgram in his Small World experiment in 1967 [11]. Facebook is one such website which was started for college and high school students in February As per the website [2], it now has over 13 million registered users across 40,000 networks. Facebook provides an Application Programmable Interface [3] for developers to use publicly accessible social network data. The aim of this project was to select some of this data and visualize it to give some meaningful information to Facebook users. The data available is for any Facebook user and his circle of friends and spans from personal information to demographic data, education, work history, interests, clubs and other Facebook network related data. So the first question in consideration was to choose the subset of data to visualize. For this, we chose to do an online poll giving the users various options and asked them to say if they would like to see a particular data in this application or not. Once we had narrowed down the data we were going to look at, we set goals for the two phases of the project. The first phase would be concerned with the visualization of birthdays and zodiac signs of a user and his friends. The idea was to look at the birthdays of a user and his friends and to see if there exists some correlation between the friends and their birthdays (like are they from some particular zodiac?). The second phase would deal with visualizations of wall posts and social network. Wall posts are messages left by a user on another user s profile page (a portion of it called the wall ). The number of wall posts is a measure of how close you are to a certain friend and also of how active a certain user is on facebook. Social network visualizations are a common phenomenon and help us see how we are related to different people in our social network. This paper is organised into six sections: First section is the introduction which gives an overview of the paper. The second section discusses the motivation and related work. The third section talks about the online poll we did to collect user statistics. The fourth section discusses the implementation of the project (birthday, wall post and social network visualizations). The fifth section looks at the possible additions to the project and future work. The last section is the conclusion. Motivation and Related Work This quote by William H. Whyte on the left sums up the motivation for this project quite well. We wanted to see what attracts people towards other people. How do cliques get formed in a social network? Do zodiac signs have an effect? We also wanted to design an application which Facebook users could use to get aggregated information about their social network in a single view (like which of their friends is the most active or who writes the most on their wall). Another aim was the clustering of the social network by different criteria and see if some of them make more sense than the others. Before starting to work on our project, we looked at the already available options. More then a dozen projects developed by individual people are available on the Facebook Product Directory website [4] itself. When we had started working on this project, there were about ten and now there are more than sixty on the website.
3 3 Lots of them deal with just a plain visualization of a user s social network in a point-line diagram, sometimes over a geographical map [5, 7, 9, 10]. Some of them like the Date Machina [1] have been developed to facilitate online dating through Facebook. There is just one project called Friendly Views [6] which talks about birthdays but the only functionality it gives at present is to download the birthdays in calendar format (ical or CSV). Online Poll: A User Study User studies are a good place to start to get a rough idea of what would be best and most useful to the users of an application. To get a head start, we started with an online poll [13]. There were eight questions to be answered in yes or no depending on if you would like to see a certain data from Facebook in this application or not. The questions and the number of votes in favour of it are listed here. A total of 22 people participated in this online poll. We also approached a few people in person to get their views. Number of Messages (Read and Unread) and how they change with time (along a week, a month or an year) - 9 Number of wall posts and their change (along a week, a month or an year) - 13 Change in the cover photo (on your profile) over time - 11 Changes in your profile with time, like changes in your favourite music bands, movies, "About me", "Favorite Quotes" etc Birthdays of your friends on a full month/year calendar - 18 Changes in your and your friends' photo albums over time, how photographs changed, how new people were tagged, etc A network showing your friends in different views - like one with those friends which share common interests, common groups - 19 Number and details of events you and your friends went to over the month (or year) - 4 As the results of the poll show, visualizations of birthdays and the social network emerged as clear winners. At the third place was visualization of the number of wall posts and their change with respect to time. It should be noted that at the time of this poll, we did not restrict ourselves to data available from Facebook s API. So, as we will see in the implementation section, to come up with a visualization of the wall posts data, we had to manually collect the information over a period of time. Implementation In this section, we will discuss the design decisions that went into the development of the views and how they emerged as you see them here. We start with a discussion of the birthday/zodiac visualizations and then move on to views of wall posts. Finally we discuss how we choose the clustering criterion for the social network and came up with the visualization for it. Zodiacs Our first attempt was to display the birthdays of a user and all of his/ her friends on a full year s calendar. We chose to do it by the months and by the zodiac signs. The first visualization which we see here in Figure 1 is a representation of a user and his friends by their birthdays. Each person is represented by a small coloured circle whose placement is on a 2D grid with days on the X axis and months on the Y axis. The colour depends on the colour associated with your zodiac sign.
4 4 interesting because a user generally has friends of the same age and most friends landed up in the same or the next zodiac sign as the user. We then thought of combining the traditional Greek and Chinese zodiac and see if that yielded interesting results. The technique used there was to place the circles for each user in the space by their Chinese zodiac sign but to colour them by the Greek zodiac. This hybrid view was visually appealing but confusing and did not give us the desired combining effect we were looking for. These two views can be found in the appendix. Figure 1. Panel showing the birthdays of a user and his friends in a calendar view based on their Greek zodiac. The signs start from Aries at the top left to Pisces at the bottom left. This view is only useful if the user has a few friends, so that he can see their names and birthdays displayed clearly. If you see carefully, the months on the right start from March-April because that corresponds to the first zodiac sign of Aries and go on till February-March which corresponds to Pisces. You can click on a circle to see the friend's photograph, name and his birthday (as seen in the yellow pop-up in Figure 1). This feature was added after a user study was done in the middle of the design phase. We came up with another view which is strictly by the Greek zodiac signs and shows your friends in a circular space which is divided into 12 zones (see the figure on the left). In this view, you can look at the names and birthdays and see their zodiac signs too. The next idea that came up was to try other traditional zodiacs and hence we thought of looking at the Chinese zodiac. Chinese zodiac is not by months but by years. They still have twelve zodiac signs, one for each year and then they repeat. This view turned out to be not so Figure 2. View displaying the wall counts of each user along a time axis. Wall posts With wall post visualizations, we started the second phase of the project. Wall posts give a rough idea of how active a user is on Facebook. Here the idea was to come up with a view of wall posts of all friends on a time axis. The first issue which came up was that the Facebook API does not give a history of the wall count
5 5 (number of wall posts) of a user. So, we had to manually collect (retrieve and store) this information daily for over a month. This also meant that this feature can not be used for an arbitrary user whose information has not been stored by the application over a period of time. In this visualization (Figure 2), we can see how the wall count of a user increased over a month. This is a cumulative view and hence we always see rising lines. The change of colours across the spectrum shows a variation in the number of wall posts. Users with very few posts are on the red end while the ones with the maximum posts are on the violet end. We also came up with another not-so interesting view of the average number of wall posts over a month. meaningful. Some users had complained about the limited use of the circular zodiac view (because of a limit on the number of friends). So we decided to omit the picture in the middle and instead use the central part of the circle to display relations between a user s friends. Figure 3 shows the visualization we came up. The circular space is divided into twelve zones representing the twelve zodiacs. A friend is placed into a certain part depending on his birthday and gets a corresponding colour depending on the zodiac. Lines are drawn between friends of the user who are friends of each other. The user is shown by a circle surrounded by another white one. No lines are drawn from the user to all his friends because that connection is obvious. This snapshot is for a user with over seventy friends. As we can see, there seems to be absolutely no pattern and it is totally random (as one would expect). Future Work We developed a website [14] for the application to reach a larger group. It would be good to get this desktop application running as a web application on the website. As we came up with the different visualizations, we kept receiving comments from friends on making the application more user-friendly, useful and obvious. First, there is scope to come up with a better hybrid view between the Chinese and Greek zodiac which tries to combine the too instead of dividing them. Figure 3. View showing the social network of a user clustered by the zodiac signs. Social Network This was the last part and most difficult because we had to come up with a clustering criterion to display a social network and ensure that it shows something The wall posts visualizations could be enhanced by having a view where the number of wall posts from all friends to the particular user could be seen. This would help by showing who wrote on the user s wall the most every month. This feature does not exist in the application at present. It might also be worth a try to implement wall posts per day vs. time rather than the cumulative view. For the social network view, it would be interesting if people could mouse-over a certain friend and see this friend s connections highlighted to look for any patterns. Since this work is still a
6 6 prototype, there are a lot of modifications possible which would make it better and there is scope to try out many new different ideas too. Conclusion The entire application was implemented in Java and uses the basic features of Java 2D. The interface is fairly simple to use and intuitive. Users who tested the application were delighted by the calendar view of the birthdays of all their friends. It was exciting for them to see all the birthdays together on one small screen. They also liked the use of different colours on a black background and the use of circular spaces for zodiacs. This work was just a preliminary take on what could be possibly done with the vast amount of data the Facebook API provides. Because of the limited time we had, we could only try a few things. We would like to explore visualizations of other things too in the future. Although, I was working on such a project for the first time, it was an absolute delight working on it and showing those beautiful views to friends. Acknowledgements I thank all the students who took the poll I created and the users of my application who gave me valuable feedback during the design process. I also wish to thank my lab mates who would look at my work in progress and pass remarks which helped a lot. Finally, I sincerely thank Prof. Kyratso Karahalios for her constructive guidance and help all along. References [1] Date Machina: [2] Facebook: [3] Facebook API: [4] Facebook Product Directory: [5] Friend Mapper: [6] Friendly Views: [7] friendmap: [8] Friendster: [9] FriendVis V2: endvis. [10] Interactive Friend Thing: [11] Milgram, S. The Small World Problem. The Individual in a Communicative Web. [12] Myspace: [13] Online Poll: [14] SocViz Website:
7 7 Appendix Here are snapshots of the views for two other visualizations of the zodiac: Chinese and Hybrid. Figure 4 shows the Chinese zodiac. Figure 5 shows the hybrid view. Here the space is divided by the Chinese zodiac but the colour is assigned by the traditional Greek zodiac. This view looks interesting but doesn t give any useful information. Figure 4. The Chinese Zodiac View. Figure 5. The Hybrid View.
Student Questionnaire (s) Main Survey
School: Class: Student: Identification Label IEA Third International Mathematics and Science Study - Repeat Student Questionnaire (s) Main Survey TIMSS Study Center Boston College Chestnut Hill, MA 02467
More informationTraffic accidents and the road network in SAS/GIS
Traffic accidents and the road network in SAS/GIS Frank Poppe SWOV Institute for Road Safety Research, the Netherlands Introduction The first figure shows a screen snapshot of SAS/GIS with part of the
More informationStarFlight May 31, 2006
StarFlight May 31, 2006 Development Team Jim Sweitzer, Program Coordinator Brenda López Silva, Project Leader Timothy Donaghy, Creator Nicholas Schwarz Keith Vanderlinde Staci Willis Goal To create a fun,
More informationDear Teacher, Overview Page 1
Dear Teacher, You are about to involve your students in one of the most exciting frontiers of science the search for other worlds and life in solar systems beyond our own! Using the MicroObservatory telescopes,
More informationHistory of the universe
History of the universe Time H 70 time 60 minutes learning outcomes To: learn that the universe is very old discover that the Earth was created relatively recently learn that humans have been on the planet
More informationP O P U L A R S O C I A L M E D I A A P P S WHAT ARE THEY? AND HOW ARE TEENS USING THEM?
WELD COUNTY DISTRICT ATTORNEY'S OFFICE OFFICE OF DISTRICT ATTORNEY MICHAEL J. ROURKE P O P U L A R S O C I A L 2017 REPORT M E D I A A P P S WHAT ARE THEY? AND HOW ARE TEENS USING THEM? P O P U L A R S
More informationInternet Resource Guide. For Chemical Engineering Students at The Pennsylvania State University
Internet Resource Guide For Chemical Engineering Students at The Pennsylvania State University Faith Tran 29 FEBRUARY 2016 Table of Contents 1 Front Matter 1.1 What is in the Guide... 2 1.2 Who this Guide
More informationBloomsburg University Weather Viewer Quick Start Guide. Software Version 1.2 Date 4/7/2014
Bloomsburg University Weather Viewer Quick Start Guide Software Version 1.2 Date 4/7/2014 Program Background / Objectives: The Bloomsburg Weather Viewer is a weather visualization program that is designed
More informationFIT100 Spring 01. Project 2. Astrological Toys
FIT100 Spring 01 Project 2 Astrological Toys In this project you will write a series of Windows applications that look up and display astrological signs and dates. The applications that will make up the
More informationSign Changes By Bart Hopkins Jr. READ ONLINE
Sign Changes By Bart Hopkins Jr. READ ONLINE New Treatments For Depression. Helping you find available treatments for depression and anxiety 9/22/2017 Get DeJ Loaf's "Changes" here: Sign in to make your
More informationDegree (k)
0 1 Pr(X k) 0 0 1 Degree (k) Figure A1: Log-log plot of the complementary cumulative distribution function (CCDF) of the degree distribution for a sample month (January 0) network is shown (blue), along
More informationHELCOM-VASAB Maritime Spatial Planning Working Group Twelfth Meeting Gdansk, Poland, February 2016
HELCOM-VASAB Maritime Spatial Planning Working Group Twelfth Meeting Gdansk, Poland, 24-25 February 2016 Document title HELCOM database for the coastal and marine Baltic Sea protected areas (HELCOM MPAs).
More informationSolar Open House Toolkit
A Solar Open House is an informal meet and greet at a solar homeowner s home. It is an opportunity for homeowners who are considering going solar to see solar energy at work, ask questions about the process
More informationNeighborhood Locations and Amenities
University of Maryland School of Architecture, Planning and Preservation Fall, 2014 Neighborhood Locations and Amenities Authors: Cole Greene Jacob Johnson Maha Tariq Under the Supervision of: Dr. Chao
More informationYour Virtual Workforce. On Demand. Worldwide. COMPANY PRESENTATION. clickworker GmbH 2017
Your Virtual Workforce. On Demand. Worldwide. COMPANY PRESENTATION 2017 CLICKWORKER AT A GLANCE Segment: Paid Crowdsourcing / Microtasking Services: Text Creation (incl. SEO Texts), AI-Training Data, Internet
More informationSydney Omarr's Day-by-Day Astrological Guide for the Year 2013:Sagittari Publisher: Signet (June 5, 2012) Explore Day By Day, Sagittarius, and more!
Sydney Omarr's Day-by-Day Astrological Guide For The Year 2012:Sagittarius (Sydney Omarr's Day-By-Day Astrological: Sagittarius) By Rob MacGregor, Trish MacGregor READ ONLINE Year 2013:Sagittari Publisher:
More informationAnno Domini Professional 2015
Anno Domini 2015 View monthly calendars from AD 1752, current date, time, days gone and days left. Also view times of sunrise/sunset and moonrise/moonset for your location and selected date. Also, statistics
More informationGIS Semester Project Working With Water Well Data in Irion County, Texas
GIS Semester Project Working With Water Well Data in Irion County, Texas Grant Hawkins Question for the Project Upon picking a random point in Irion county, Texas, to what depth would I have to drill a
More informationA GUI FOR EVOLVE ZAMS
A GUI FOR EVOLVE ZAMS D. R. Schlegel Computer Science Department Here the early work on a new user interface for the Evolve ZAMS stellar evolution code is presented. The initial goal of this project is
More informationAstrology Of The Moon: An Illuminating Journey Through The Signs And Houses By Amy Herring
Astrology Of The Moon: An Illuminating Journey Through The Signs And Houses By Amy Herring Amy explained that with the North Node in Gemini in the 10th house it is Verena's book is Astrology of the Moon:
More informationFeatured Alumna Sarah Caudill ( 06)
Featured Alumna Sarah Caudill ( 06) As a high school student applying to colleges, I had a choice between Stetson and the University of Florida. I reasoned that I would receive a more personalized education
More informationTest and Evaluation of an Electronic Database Selection Expert System
282 Test and Evaluation of an Electronic Database Selection Expert System Introduction As the number of electronic bibliographic databases available continues to increase, library users are confronted
More informationLooking at Communities: Comparing Urban and Rural Neighborhoods
Looking at Communities: Comparing Urban and Rural Neighborhoods OVERVIEW & OBJECTIVES Our urban areas have become so dominant that frequently the children we teach have no connection with and very few
More informationEuropean Solar Days May Report Spain
European Solar Days 2009 12-22 May Report Spain Support by: 1 Results of European Solar Days 2009 in Spain 1.1. Participation in European Solar Days 2009 The 2 nd Edition of the European Solar Days organised
More informationDeveloping a Community Geographical Information System (GIS) in Rural India
Developing a Community Geographical Information System (GIS) in Rural India Before rushing off and describing the unique challenges of developing a small scale GIS system India I better first describe
More informationThe Community Maps Project Craig Roland! The University of Florida! January 2002!
Preliminary map by a 4th grader Community Map by Four Art Buddies The Community Maps Project Craig Roland! The University of Florida! January 2002! The Community Maps Project represents a collaborative
More informationThe Development, Implementation and Evaluation of Alternative Approaches to Teaching and Learning in the Chemistry Laboratory
Dublin City University Ollscoil Chathair Bhaile Atha Cliath School of Chemical Sciences The Development, Implementation and Evaluation of Alternative Approaches to Teaching and Learning in the Chemistry
More informationRETROGRADE MOTION AND PLANETARY ORBITS Computer Simulations
RETROGRADE MOTION AND PLANETARY ORBITS Computer Simulations OBJECTIVE: To see planetary orbits simulated on a computer and to see how this suncentered model explains retrograde motion. Initial Procedure:
More information13.7 ANOTHER TEST FOR TREND: KENDALL S TAU
13.7 ANOTHER TEST FOR TREND: KENDALL S TAU In 1969 the U.S. government instituted a draft lottery for choosing young men to be drafted into the military. Numbers from 1 to 366 were randomly assigned to
More informationLAB 2 - ONE DIMENSIONAL MOTION
Name Date Partners L02-1 LAB 2 - ONE DIMENSIONAL MOTION OBJECTIVES Slow and steady wins the race. Aesop s fable: The Hare and the Tortoise To learn how to use a motion detector and gain more familiarity
More informationLearn more about TechnoNewsletter. TechnoStar. Fan Club Newsletter
Learn more about TechnoNewsletter TechnoStar Fan Club Newsletter Attention pop music fans! In this issue: Top 5 Reasons to Go to a Concert Amazing TechnoStar Word Search Making a Difference Format text
More informationLinear Functions, Equations, and Inequalities
CHAPTER Linear Functions, Equations, and Inequalities Inventory is the list of items that businesses stock in stores and warehouses to supply customers. Businesses in the United States keep about.5 trillion
More informationLESSON 8: IT S ALL IN THE NAME WEATHER VERSUS CLIMATE
LESSON 8: IT S ALL IN THE NAME WEATHER VERSUS CLIMATE TEACHER BACKGROUND Overview: Weather and climate are commonly misinterpreted by students as terms that are interchangeable. In fact these terms, while
More informationSpecial Theory of Relativity Prof. Shiva Prasad Department of Physics Indian Institute of Technology, Bombay. Lecture - 15 Momentum Energy Four Vector
Special Theory of Relativity Prof. Shiva Prasad Department of Physics Indian Institute of Technology, Bombay Lecture - 15 Momentum Energy Four Vector We had started discussing the concept of four vectors.
More informationComputational Tasks and Models
1 Computational Tasks and Models Overview: We assume that the reader is familiar with computing devices but may associate the notion of computation with specific incarnations of it. Our first goal is to
More informationDiscrete Structures Proofwriting Checklist
CS103 Winter 2019 Discrete Structures Proofwriting Checklist Cynthia Lee Keith Schwarz Now that we re transitioning to writing proofs about discrete structures like binary relations, functions, and graphs,
More informationPopulation 24/7 Download: User Guide. Purpose
Population 24/7 Download: User Guide Purpose The Population 24/7 Download application is designed to enable a user to navigate around a map of England and Wales; select an area of interest represented
More informationThank you for your interest in the Support Resistance Strength Analyzer!
This user manual refer to FXCM s Trading Station version of the indicator Support Resistance Strength Analyzer Thank you for your interest in the Support Resistance Strength Analyzer! This unique indicator
More informationStructure of Materials Prof. Anandh Subramaniam Department of Material Science and Engineering Indian Institute of Technology, Kanpur
Structure of Materials Prof. Anandh Subramaniam Department of Material Science and Engineering Indian Institute of Technology, Kanpur Lecture - 5 Geometry of Crystals: Symmetry, Lattices The next question
More informationWelcome to NR502 GIS Applications in Natural Resources. You can take this course for 1 or 2 credits. There is also an option for 3 credits.
Welcome to NR502 GIS Applications in Natural Resources. You can take this course for 1 or 2 credits. There is also an option for 3 credits. The 1st credit consists of a series of readings, demonstration,
More informationGravitational Fields
Gravitational Fields Examples 00 Currently, the space probe, Cassini, is between Jupiter and Saturn. Cassini s mission is to deliver a probe to one of Saturn s moons, Titan, and then orbit Saturn collecting
More informationUnderstanding China Census Data with GIS By Shuming Bao and Susan Haynie China Data Center, University of Michigan
Understanding China Census Data with GIS By Shuming Bao and Susan Haynie China Data Center, University of Michigan The Census data for China provides comprehensive demographic and business information
More informationWorking with ArcGIS: Classification
Working with ArcGIS: Classification 2 Abbreviations D-click R-click TOC Double Click Right Click Table of Content Introduction The benefit from the use of geographic information system (GIS) software is
More informationSample. Contents SECTION 1: PLACE NAMES 6 SECTION 2: CONNECTING TO PLACES 21 SECTION 3: SPACES: NEAR AND FAR 53
Contents Teachers' Notes 4 National Curriculum Links 5 SECTION 1: PLACE NAMES 6 Teachers' Notes 7-8 Activities Names Of Places 9 Place Names Are Important 1 10 Place Names Are Important 2 11 The Meanings
More informationJournal of e-media Studies Volume 3, Issue 1, 2013 Dartmouth College
Journal of e-media Studies Volume 3, Issue 1, 2013 Dartmouth College Review of Old Maps Online Alyssa McLeod Labeled Google for old maps by its creators, the Jisc-funded Old Maps Online is an interface
More informationCompletions Institution: CUNY Borough of Manhattan Community College User ID: 36C0029
Completions 207-8 Institution: CUNY Borough of Manhattan Community College User ID: 36C0029 (9052) Completions Overview Welcome to the IPEDS Completions survey component. The Completions component is one
More informationLesson 19: Understanding Variability When Estimating a Population Proportion
Lesson 19: Understanding Variability When Estimating a Population Proportion Student Outcomes Students understand the term sampling variability in the context of estimating a population proportion. Students
More informationMars Attacked! 2011 ICTSA Programming Challenge
Mars Attacked! 2011 ICTSA Programming Challenge Christian Colombo, Gordon J. Pace, Chris Porter and Sandro Spina February 2011 Abstract This document outlines the programming challenge task that has to
More informationStudents Perception and Intuition of Dimension within Linear Algebra. Brad Taylor Virginia Polytechnic Institute and State University
Students Perception and Intuition of Dimension within Linear Algebra Brad Taylor Virginia Polytechnic Institute and State University Btaylor8@vt.edu The purpose of this study is to investigate how students
More informationUniversity of California Berkeley CS170: Efficient Algorithms and Intractable Problems November 19, 2001 Professor Luca Trevisan. Midterm 2 Solutions
University of California Berkeley Handout MS2 CS170: Efficient Algorithms and Intractable Problems November 19, 2001 Professor Luca Trevisan Midterm 2 Solutions Problem 1. Provide the following information:
More informationSun Signs By Linda Goodman READ ONLINE
Sun Signs By Linda Goodman READ ONLINE Find how to type sun signs directly from your keyboard. You can put them in Facebook, Youtube or Myspace. Ways to type sun symbols, their's unicode entities and more.
More informationSOUTH COAST COASTAL RECREATION METHODS
SOUTH COAST COASTAL RECREATION METHODS A customized, web-based survey instrument, which utilizes Point 97 s Viewpoint survey and mapping technology, was used to collect spatially explicit data on coastal
More informationFramework on reducing diffuse pollution from agriculture perspectives from catchment managers
Framework on reducing diffuse pollution from agriculture perspectives from catchment managers Photo: River Eden catchment, Sim Reaney, Durham University Introduction This framework has arisen from a series
More informationARIES HOROSCOPE 2016 By Lisa Lazuli
ARIES HOROSCOPE 2016 By Lisa Lazuli If searched for a ebook by Lisa Lazuli ARIES HOROSCOPE 2016 in pdf format, in that case you come on to loyal website. We present the utter variation of this ebook in
More informationStudying galaxies with the Sloan Digital Sky Survey
Studying galaxies with the Sloan Digital Sky Survey Laboratory exercise, Physics of Galaxies, Spring 2017 (Uppsala Universitet) by Beatriz Villarroel *** The Sloan Digital Sky Survey (SDSS) is the largest
More informationEconomic and Social Council 2 July 2015
ADVANCE UNEDITED VERSION UNITED NATIONS E/C.20/2015/11/Add.1 Economic and Social Council 2 July 2015 Committee of Experts on Global Geospatial Information Management Fifth session New York, 5-7 August
More informationVisualizing Energy Usage and Consumption of the World
Visualizing Energy Usage and Consumption of the World William Liew Abstract As the world becomes more and more environmentally aware, a simple layman s visualization of worldwide energy use is needed to
More informationData Aggregation with InfraWorks and ArcGIS for Visualization, Analysis, and Planning
Data Aggregation with InfraWorks and ArcGIS for Visualization, Analysis, and Planning Stephen Brockwell President, Brockwell IT Consulting, Inc. Join the conversation #AU2017 KEYWORD Class Summary Silos
More informationSimulating Future Climate Change Using A Global Climate Model
Simulating Future Climate Change Using A Global Climate Model Introduction: (EzGCM: Web-based Version) The objective of this abridged EzGCM exercise is for you to become familiar with the steps involved
More informationThe Galaxy Zoo Project
Astronomy 201: Cosmology Fall 2009 Prof. Bechtold NAME: The Galaxy Zoo Project 200 points Due: Nov. 23, 2010, in class Professional astronomers often have to search through enormous quantities of data
More informationIntroduction to Coastal GIS
Introduction to Coastal GIS Event was held on Tues, 1/8/13 - Thurs, 1/10/13 Time: 9:00 am to 5:00 pm Location: Roger Williams University, Bristol, RI Audience: The intended audiences for this course are
More informationA week in the life of. Time days of the week. copy
Time days of the week You will need: black pens pencils scissors copy What to do: You are going to make your own A Week in the Life of Me book. Think of something special you do on each day of the week.
More informationCompletions Survey materials can be downloaded using the following link: Survey Materials.
Completions 2013-14 Institution: University of Nebraska at Kearney (181215) User ID: P1812152 Completions Overview Welcome to the IPEDS Completions survey component. The Completions component is one of
More informationPHASE 1_7 TH SESSION ARCGIS TRAINING AT KU GIS LABS: INTRODUCTION TO GIS: EXPLORING ARCCATALOG AND ARCGIS TOOLS
PHASE 1_7 TH SESSION ARCGIS TRAINING AT KU GIS LABS: INTRODUCTION TO GIS: EXPLORING ARCCATALOG AND ARCGIS TOOLS 7 TH SESSION REPORT: 10 TH - 12 TH SEPTEMBER 2014 SCHOOL OF ENGINEERING AND TECHNOLOGY COMPUTER
More informationGOVERNMENT MAPPING WORKSHOP RECOVER Edmonton s Urban Wellness Plan Mapping Workshop December 4, 2017
GOVERNMENT MAPPING WORKSHOP 12.4.17 RECOVER Edmonton s Urban Wellness Plan Mapping Workshop December 4, 2017 In July of 2017, City Council directed administration to develop RECOVER, Edmonton s Urban Wellness
More informationThe Trade Area Analysis Model
The Trade Area Analysis Model Trade area analysis models encompass a variety of techniques designed to generate trade areas around stores or other services based on the probability of an individual patronizing
More informationIntroduction to Measurement Physics 114 Eyres
1 Introduction to Measurement Physics 114 Eyres 6/5/2016 Module 1: Measurement 1 2 Significant Figures Count all non-zero digits Count zeros between non-zero digits Count zeros after the decimal if also
More informationAirSafe.com traffic spikes heat maps May 2006 to November 2015 Todd Curtis November 22, 2015
AirSafe.com traffic spikes heat maps May 2006 to November 2015 Todd Curtis November 22, 2015 Summary A previous AirSafe.com study, AirSafe.com traffic spikes May 2006 to November 2015, reviewed traffic
More informationClimate Change: How it impacts Canadians and what we can do to slow it down.
Climate Change: How it impacts Canadians and what we can do to slow it down. Lesson Overview This lesson takes stock of how climate change has already affected Canadians in geographic, economic, and cultural
More informationMy Map Activity MINNESOTA SOCIAL STUDIES STANDARDS & BENCHMARKS
My Map Activity OVERVIEW & OBJECTIVES Students will learn the basics of Google Maps while using geospatial data to create their neighborhood map with the places they spend time. They will also collect
More informationNatural Language Processing Prof. Pawan Goyal Department of Computer Science and Engineering Indian Institute of Technology, Kharagpur
Natural Language Processing Prof. Pawan Goyal Department of Computer Science and Engineering Indian Institute of Technology, Kharagpur Lecture - 18 Maximum Entropy Models I Welcome back for the 3rd module
More informationChemical Applications of Symmetry and Group Theory Prof. Manabendra Chandra Department of Chemistry Indian Institute of Technology, Kanpur.
Chemical Applications of Symmetry and Group Theory Prof. Manabendra Chandra Department of Chemistry Indian Institute of Technology, Kanpur Lecture 01 Hello and welcome to the course, whose title is Application
More informationBoy Scout Badge Workshop ASTRONOMY
Boy Scout Badge Workshop ASTRONOMY Welcome to the Schenectady Museum & Suits-Bueche Planetarium! During this workshop, you will explore the museum, see a show in the planetarium, and try out some other
More informationNUCLEAR POPCORN OBJECTIVE: Grade: Help students visualize the rate of radioactive decay. Intended Learning Outcome:
NUCLEAR POPCORN Teacher s Notes OBJECTIVE: Help students visualize the rate of radioactive decay. Grade: 7 12 Intended Learning Outcome: Reason mathematically Make predictions Construct tables and graphs
More informationChapter 4 Statistics
Chapter 4 Section 4.1The mean, mode, median and Range The idea of an average is extremely useful, because it enables you to compare one set of data with another set by comparing just two values their averages.
More informationFair Division on the Hubble Space Telescope (repo: bkerr) Brandon Kerr and Jordana Kerr. Project Description
Fair Division on the Hubble Space Telescope (repo: bkerr) Brandon Kerr and Jordana Kerr Project Description We mapped the intricacies of scheduling jobs for the Hubble Space Telescope to fair division
More informationMeasuring Keepers S E S S I O N 1. 5 A
S E S S I O N 1. 5 A Measuring Keepers Math Focus Points Naming, notating, and telling time to the hour on a digital and an analog clock Understanding the meaning of at least in the context of linear measurement
More informationWeek 8 Cookbook: Review and Reflection
: Review and Reflection Week 8 Overview 8.1) Review and Reflection 8.2) Making Intelligent Maps: The map sheet as a blank canvas 8.3) Making Intelligent Maps: Base layers and analysis layers 8.4) ArcGIS
More informationNetwork Science (overview, part 1)
Network Science (overview, part 1) Ralucca Gera, Applied Mathematics Dept. Naval Postgraduate School Monterey, California rgera@nps.edu Excellence Through Knowledge Overview Current research Section 1:
More informationUsing the Stock Hydrology Tools in ArcGIS
Using the Stock Hydrology Tools in ArcGIS This lab exercise contains a homework assignment, detailed at the bottom, which is due Wednesday, October 6th. Several hydrology tools are part of the basic ArcGIS
More informationGIS Options RELU Upland Moorland Scoping Study Project CCG/SoG Working Paper, February 2005 Andy Turner
GIS Options RELU Upland Moorland Scoping Study Project CCG/SoG Working Paper, February 2005 Andy Turner 1. Introduction This working paper outlines some Geographical Information System (GIS) options for
More informationOffice of Geographic Information Systems
Winter 2007 Department Spotlight SWCD GIS by Dave Holmen, Dakota County Soil and Water Conservation District The Dakota County Soil and Water Conservation District (SWCD) has collaborated with the Dakota
More informationStar Cluster Photometry and the H-R Diagram
Star Cluster Photometry and the H-R Diagram Contents Introduction Star Cluster Photometry... 1 Downloads... 1 Part 1: Measuring Star Magnitudes... 2 Part 2: Plotting the Stars on a Colour-Magnitude (H-R)
More information1 01:00:47:07 01:00:48:20 CHAPIN: Measurement is the process 2 01:00:48:22 01:00:52:25 of quantifying properties of objects, and to do that, 3
1 01:00:47:07 01:00:48:20 CHAPIN: Measurement is the process 2 01:00:48:22 01:00:52:25 of quantifying properties of objects, and to do that, 3 01:00:52:27 01:00:56:21 we have set procedures that enable
More informationGLOBAL NEEDS TO BE ADDRESSED IN A STRATEGIC PLAN FOR SPACE WEATHER. Developing products and services in space weather: Space Weather Channel in China
WORLD METEOROLOGICAL ORGANIZATION COMMISSION FOR BASIC SYSTEMS COMMISSION FOR AERONAUTICAL METEOROLOGY INTER-PROGRAMME COORDINATION TEAM ON SPACE WEATHER ICTSW-4/Doc. 10.2(2) (25.XI.2013) ITEM: 10.2 FOURTH
More informationCreative Dance Lesson Plan Integrating. Math: Telling Time (A.M. vs. P.M.)
Creative Dance Lesson Plan Integrating Math: Telling Time (A.M. vs. P.M.) Grade: 2nd Length: 45 minutes Written by: Erika Cravath Student Learning Outcome: The students will demonstrate an understanding
More informationMathOverflow. David Brown. University of Wisconsin-Madison Slides available at Rice University
MathOverflow David Brown University of Wisconsin-Madison Slides available at http://www.math.wisc.edu/~brownda/slides/ Rice University March 29, 2011 Introduction Mathoverflow: http://mathoverflow.net/.
More informationMATERIALS TO SUPPORT KINESTHETIC ASTRONOMY LESSONS
MATERIALS TO SUPPORT KINESTHETIC ASTRONOMY LESSONS Dear Educator, The materials here support the Kinesthetic Astronomy lesson that can be downloaded from the Space Science Institute web site [click on
More informationExaminers Report/ Principal Examiner Feedback. Summer GCE Core Mathematics C3 (6665) Paper 01
Examiners Report/ Principal Examiner Feedback Summer 2013 GCE Core Mathematics C3 (6665) Paper 01 Edexcel and BTEC Qualifications Edexcel and BTEC qualifications come from Pearson, the UK s largest awarding
More informationSECTION I : LOGICAL REASONING
SAMPLE PAPER SECTION I : LOGICAL REASONING. Look at the given Venn diagram. How many are both triangle and red? Triangle Both Red. Look at this pattern. Which of the following has the same representation
More informationThis lab exercise will try to answer these questions using spatial statistics in a geographic information system (GIS) context.
by Introduction Problem Do the patterns of forest fires change over time? Do forest fires occur in clusters, and do the clusters change over time? Is this information useful in fighting forest fires? This
More informationCounting. 1 Sum Rule. Example 1. Lecture Notes #1 Sept 24, Chris Piech CS 109
1 Chris Piech CS 109 Counting Lecture Notes #1 Sept 24, 2018 Based on a handout by Mehran Sahami with examples by Peter Norvig Although you may have thought you had a pretty good grasp on the notion of
More informationAnno Domini Professional 2018
Anno Domini 2018 View monthly calendars from AD 1752, current date, time, days gone and days left. Also view times of sunrise/sunset and moonrise/moonset for your location and selected date. Also, statistics
More informationPrimes in Spirals. Cassie Gribble. A Thesis Submitted to the Faculty of the DEPARTMENT OF MATHEMATICS
Primes in Spirals By Cassie Gribble A Thesis Submitted to the Faculty of the DEPARTMENT OF MATHEMATICS In Partial Fulfillment of the Requirements For the Degree of MASTER OF MIDDLE SCHOOL MATHEMATICS LEADERSHIP
More informationInteracting Galaxies
Interacting Galaxies Contents Introduction... 1 Downloads... 1 Selecting Interacting Galaxies to Observe... 2 Measuring the sizes of the Galaxies... 5 Making a Colour Image in IRIS... 8 External Resources...
More informationINTRODUCING EINSTEIN'S RELATIVITY BY RAY D'INVERNO DOWNLOAD EBOOK : INTRODUCING EINSTEIN'S RELATIVITY BY RAY D'INVERNO PDF
Read Online and Download Ebook INTRODUCING EINSTEIN'S RELATIVITY BY RAY D'INVERNO DOWNLOAD EBOOK : INTRODUCING EINSTEIN'S RELATIVITY BY RAY D'INVERNO PDF Click link bellow and free register to download
More informationAccurate 3D-Modeling of User Inputted Molecules Using a Nelder Mead Algorithm Computer Systems Lab,
Accurate 3D-Modeling of User Inputted Molecules Using a Nelder Mead Algorithm Computer Systems Lab, 2007-2008 Ben Parr May 12, 2008 Abstract In order to better understand chemistry, chemists create 3 dimensional
More informationA Pilot Study on Functional Processing: Inferences of Pairwise Relationships in Systems of Three Variables. Kent L. Norman and Benjamin K.
A Pilot Study on : Inferences of Pairwise Relationships in Systems of Three Variables Kent L. Norman and Benjamin K. Smith Laboratory for Automation Psychology and Decision Processes Department of Psychology
More informationOUR SERVICES. In this Report we take a profound look at who you (really) are. This is a most indepth
Luc De Jaeger Cosmic Technologies (CosmiTec) Ondernemingsnummer/Company Number 0859944788 VAT/BTW: BE 0859 944 788 RPR Gent IJzerweglaan 23 BE-9050 Ledeberg Belgium Click here to visit our web site Click
More informationSALES AND MARKETING Department MATHEMATICS. 2nd Semester. Bivariate statistics. Tutorials and exercises
SALES AND MARKETING Department MATHEMATICS 2nd Semester Bivariate statistics Tutorials and exercises Online document: http://jff-dut-tc.weebly.com section DUT Maths S2. IUT de Saint-Etienne Département
More information