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2. L@S 2015: Vancouver, BC, Canada
- Gregor Kiczales, Daniel M. Russell, Beverly P. Woolf:

Proceedings of the Second ACM Conference on Learning @ Scale, L@S 2015, Vancouver, BC, Canada, March 14 - 18, 2015. ACM 2015, ISBN 978-1-4503-3411-2
Opening Keynote Address
- Zoran Popovic:

Achieving 96% Mastery at National Scale through Inspired Learning and Generative Adaptivity. 1
Session 1: Analysis
- Nicholas Dronen, Peter W. Foltz, Kyle Habermehl:

Effective Sampling for Large-scale Automated Writing Evaluation Systems. 3-10 - Korinn Ostrow, Christopher Donnelly, Seth Adjei, Neil T. Heffernan

:
Improving Student Modeling Through Partial Credit and Problem Difficulty. 11-20 - Anne Lamb, Jascha Smilack, Andrew D. Ho, Justin Reich:

Addressing Common Analytic Challenges to Randomized Experiments in MOOCs: Attrition and Zero-Inflation. 21-30 - Yasmine Kotturi, Chinmay Kulkarni, Michael S. Bernstein, Scott R. Klemmer:

Structure and messaging techniques for online peer learning systems that increase stickiness. 31-38
Session 2: Behavior 1
- Anthony Botelho, Hao Wan, Neil T. Heffernan

:
The Prediction of Student First Response Using Prerequisite Skills. 39-45 - Edward Cutrell, Jacki O'Neill, Srinath Bala, B. Nitish, Andrew Cross, Nakull Gupta, Viraj Kumar

, William Thies:
Blended Learning in Indian Colleges with Massively Empowered Classroom. 47-56 - René F. Kizilcec, Sherif A. Halawa:

Attrition and Achievement Gaps in Online Learning. 57-66 - Yue Gong, Joseph E. Beck:

Towards Detecting Wheel-Spinning: Future Failure in Mastery Learning. 67-74
Session 3: Behavior 2
- Chinmay Kulkarni, Michael S. Bernstein, Scott R. Klemmer:

PeerStudio: Rapid Peer Feedback Emphasizes Revision and Improves Performance. 75-84 - Matti Nelimarkka

, Arto Vihavainen:
Alumni & Tenured Participants in MOOCs: Analysis of Two Years of MOOC Discussion Channel Activity. 85-93 - Markus Krause, Marc Mogalle, Henning Pohl

, Joseph Jay Williams:
A Playful Game Changer: Fostering Student Retention in Online Education with Social Gamification. 95-102 - Zachary A. Pardos, Kevin Kao:

moocRP: An Open-source Analytics Platform. 103-110
Session 4: Learning
- Kenneth R. Koedinger, Jihee Kim, Julianna Zhuxin Jia, Elizabeth A. McLaughlin, Norman L. Bier:

Learning is Not a Spectator Sport: Doing is Better than Watching for Learning from a MOOC. 111-120 - Diyi Yang, Miaomiao Wen, Iris K. Howley, Robert E. Kraut, Carolyn P. Rosé

:
Exploring the Effect of Confusion in Discussion Forums of Massive Open Online Courses. 121-130 - Seungwon Yang, Carlotta Domeniconi, Matt Revelle

, Mack Sweeney, Ben U. Gelman, Chris Beckley, Aditya Johri:
Uncovering Trajectories of Informal Learning in Large Online Communities of Creators. 131-140 - Cody A. Coleman, Daniel T. Seaton, Isaac L. Chuang:

Probabilistic Use Cases: Discovering Behavioral Patterns for Predicting Certification. 141-148
Session 5: Grading
- Karthik Raman, Thorsten Joachims:

Bayesian Ordinal Peer Grading. 149-156 - Youngwook Paul Kwon, Sara McMains:

An Automated Grading/Feedback System for 3-View Engineering Drawings using RANSAC. 157-166 - Andrew S. Lan, Divyanshu Vats, Andrew E. Waters, Richard G. Baraniuk:

Mathematical Language Processing: Automatic Grading and Feedback for Open Response Mathematical Questions. 167-176 - Andrew E. Waters, David Tinapple, Richard G. Baraniuk:

BayesRank: A Bayesian Approach to Ranked Peer Grading. 177-183
Session 6: Design
- Tommy Mullaney, Justin Reich:

Staggered Versus All-At-Once Content Release in Massive Open Online Courses: Evaluating a Natural Experiment. 185-194 - Chris Piech, Mehran Sahami, Jonathan Huang, Leonidas J. Guibas:

Autonomously Generating Hints by Inferring Problem Solving Policies. 195-204 - Soumya Basu, Albert Wu, Brian Hou, John DeNero:

Problems Before Solutions: Automated Problem Clarification at Scale. 205-213
Closing Keynote
- Peter Norvig:

Machine Learning for Learning at Scale. 215
Work in Progress (posters)
- Jaye Clarkes-Nias, Juliet Mutahi, Andrew Kinai, Oliver Bent, Komminist Weldemariam, Saurabh Srivastava:

Towards Capturing Learners Sentiment and Context. 217-222 - Henry Corrigan-Gibbs, Nakull Gupta, Curtis G. Northcutt, Edward Cutrell, William Thies:

Measuring and Maximizing the Effectiveness of Honor Codes in Online Courses. 223-228 - Eileen Scanlon, Tim O'Shea, Patrick McAndrew

:
Technology-Enhanced Learning: Evidence-based Improvement. 229-232 - Vaishaal Shankar, David E. Culler:

A Modern Student Experience inSystems Programming. 233-236 - Ming Zhang

, Jile Zhu, Yanzhen Zou, Hongfei Yan, Dan Hao
, Chuxiong Liu:
Educational Evaluation in the PKU SPOC Course "Data Structures and Algorithms". 237-240 - Christopher A. Brooks, Caren Stalburg

, Tawanna Dillahunt, Lionel Robert
:
Learn With Friends: The Effects of Student Face-to-Face Collaborations on Massive Open Online Course Activities. 241-244 - Christopher A. Brooks, Craig Thompson, Stephanie D. Teasley:

Who You Are or What You Do: Comparing the Predictive Power of Demographics vs. Activity Patterns in Massive Open Online Courses (MOOCs). 245-248 - Tanmay Sinha

, Justine Cassell:
Connecting the Dots: Predicting Student Grade Sequences from Bursty MOOC Interactions over Time. 249-252 - Vineet Pandey, Yasmine Kotturi, Chinmay Kulkarni, Michael S. Bernstein, Scott R. Klemmer:

Connecting Stories and Pedagogy Increases Participant Engagement in Discussions. 253-256 - Nakull Gupta, Jacki O'Neill, Andrew Cross, Edward Cutrell, William Thies:

Source Effects in Online Education. 257-260 - Joseph Bahman Moghadam, Rohan Roy Choudhury, Hezheng Yin, Armando Fox:

AutoStyle: Toward Coding Style Feedback at Scale. 261-266 - Meredith M. Thompson, Eric Braude, Christopher D. Canfield, Jay Halfond, Aparaita Sengupta:

Assessment of KNOWLA: Knowledge Assembly for Learning and Assessment. 267-271 - Yuanyuan Wang

, Yukiko Kawai, Setsuko Miyamoto, Kazutoshi Sumiya:
An E-Report Scoring Method based on Student Peer Evaluation using Groupware. 273-276 - John Cox, Pavel Simakov:

Adding Third-Party Authentication to Open edX: A Case Study. 277-280 - William Wu, Constantinos Daskalakis, Nicolaas Kaashoek, Christos Tzamos

, S. Matthew Weinberg
:
Game Theory based Peer Grading Mechanisms for MOOCs. 281-286 - Betsy Anne Williams

:
Peers in MOOCs: Lessons Based on the Education Production Function, Collective Action, and an Experiment. 287-292 - Na Li, Krzysztof Z. Gajos, Ken Nakayama, Ryan Enos:

TELLab: An Experiential Learning Tool for Psychology. 293-297 - Yi Cui, Alyssa Friend Wise:

Identifying Content-Related Threads in MOOC Discussion Forums. 299-303 - Soon Hau Chua, Juho Kim, Toni-Jan Keith Monserrat, Shengdong Zhao

:
Understanding Learners' General Perception Towards Learning with MOOC Classmates: An Exploratory Study. 305-308 - Mo Zhou, Alison Cliff, Allen Huang, Sanjay Krishnan, Brandie Nonnecke

, Kanji Uchino, Samuel Joseph, Armando Fox, Ken Goldberg
:
M-CAFE: Managing MOOC Student Feedback with Collaborative Filtering. 309-312 - Steven Tang, Elizabeth A. McBride, Hannah Gogel, Zachary A. Pardos:

Item Ordering Effects with Qualitative Explanations using Online Adaptive Tutoring Data. 313-316 - Piotr Mitros

:
Learnersourcing of Complex Assessments. 317-320 - Bernie Randles, Dongwook Yoon, Amy Cheatle

, Malte F. Jung, François Guimbretière:
Supporting Face-to-Face Like Communication Modalities for Asynchronous Assignment Feedback in Math Education. 321-326 - Andrew E. Krumm, Cynthia M. D'Angelo

, Timothy E. Podkul, Mingyu Feng, Hiroyuki Yamada, Rachel Beattie, Heather Hough, Chris Thorn
:
Practical Measures of Learning Behaviors. 327-330 - Eleanor O'Rourke, Yvonne Chen, Kyla Haimovitz, Carol S. Dweck, Zoran Popovic:

Demographic Differences in a Growth Mindset Incentive Structure for Educational Games. 331-334 - Cheng Ye

, John S. Kinnebrew, Gautam Biswas, Brent J. Evans, Douglas H. Fisher, Gayathri Narasimham, Katherine A. Brady:
Behavior Prediction in MOOCs using Higher Granularity Temporal Information. 335-338 - Peter W. Foltz, Mark Rosenstein:

Analysis of a Large-Scale Formative Writing Assessment System with Automated Feedback. 339-342 - Saijing Zheng, Mary Beth Rosson, Patrick C. Shih

, John M. Carroll
:
Designing MOOCs as Interactive Places for Collaborative Learning. 343-346 - Zachary MacHardy, Zachary A. Pardos:

Toward the Evaluation of Educational Videos using Bayesian Knowledge Tracing and Big Data. 347-350 - Eni Mustafaraj, Jessica Bu:

The Visible and Invisible in a MOOC Discussion Forum. 351-354 - Ruth Wylie, Ed Finn

, Joseph Eschrich, Kiyash Monsef, Robert Hawkins:
Exploring Collaborative Storytelling as a Method for Creating Educational Games. 355-358 - Catherine M. Hicks, C. Ailie Fraser, Purvi Desai, Scott R. Klemmer:

Do Numeric Ratings Impact Peer Reviewers? 359-362 - Elena L. Glassman, Christopher J. Terman, Robert C. Miller:

Learner-Sourcing in an Engineering Class at Scale. 363-366 - Hezheng Yin, Joseph Bahman Moghadam, Armando Fox:

Clustering Student Programming Assignments to Multiply Instructor Leverage. 367-372 - Kalyan Veeramachaneni, Kiarash Adl, Una-May O'Reilly:

Feature Factory: Crowd Sourced Feature Discovery. 373-376 - Ruth Shillair, Rick Wash

:
Are You Listening?: Social Roles and Perceived Value of Statements in Online Learning Communities. 377-380 - Marti A. Hearst, Armando Fox, Derrick Coetzee, Björn Hartmann:

All It Takes Is One: Evidence for a Strategy for Seeding Large Scale Peer Learning Interactions. 381-383 - Ido Roll

, Leah Macfadyen
, Debra Sandilands:
Evaluating the Relationship Between Course Structure, Learner Activity, and Perceived Value of Online Courses. 385-388 - Anna Kasunic, Jessica Hammer, Amy Ogan:

Cultural Relevance in MOOCs: Asking About Socioeconomic Context. 389-392 - Saif Ahmed, Seungwon Yang, Aditya Johri:

Does Online Q&A Activity Vary Based on Topic: A Comparison of Technical and Non-technical Stack Exchange Forums. 393-398 - Garvit Juniwal, Sakshi Jain, Alexandre Donzé, Sanjit A. Seshia:

Clustering-Based Active Learning for CPSGrader. 399-403 - Christopher Chudzicki, David E. Pritchard, Zhongzhou Chen:

Learning Experiments Using AB Testing at Scale. 405-408 - Joseph Jay Williams, Korinn Ostrow, Xiaolu Xiong, Elena L. Glassman, Juho Kim

, Samuel G. Maldonado, Na Li, Justin Reich, Neil T. Heffernan
:
Using and Designing Platforms for In Vivo Educational Experiments. 409-412 - Joseph Jay Williams, Juho Kim

, Brian Keegan:
Supporting Instructors in Collaborating with Researchers using MOOClets. 413-416 - Ilya M. Goldin, April Galyardt:

Viz-R: Using Recency to Improve Student and Domain Models. 417-420 - Min Hyung Lee, Joe Runde, Warfa Jibril, Zhuoying Wang, Emma Brunskill:

Learning the Features Used To Decide How to Teach. 421-424

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