RECENT Publications


SIEVE is Simpler than LRU: An Efficient Turn-Key Eviction Algorithm for Web Caches
Yazhou Zhang, Juncheng Yang, Yao Yue, Ymir Vigfusson, Rashmi Vinayak. In NSDI '24, Santa Clara, CA.  [pdf]   [Github]

LatenSeer: Causal Modeling of End-to-End Latency Distributions by Harnessing Distributed Tracing
Yazhuo Zhang, Rebecca Isaacs, Yao Yue, Juncheng Yang, Lei Zhang, Ymir Vigfusson. In SOCC '23, Carlsbad, CA.  [pdf]   [Github]

The Benefit of Hindsight: Tracing Edge-Cases in Distributed Systems. Lei Zhang, Vaastav Anand, Zhiqiang Xie, Ymir Vigfusson, Jonathan Mace. NSDI, April 2023. [arXiv]

EVStore: Scaling Embedding Tables for Deep Recommendation Systems. Daniar H. Kurniawan, Ruipu Wang, Kahfi S. Zulkifli, Fandi A. Wiranata, John Bent, Ymir Vigfusson, Haryadi S. Gunawi. To appear at ASPLOS, March 2023. 

[SoK] Identifying Mismatches Between Microservice Testbeds and Industrial Perceptions of Microservices. Vishwanath Seshagiri*, Darby Huye*, Lan Liu, Avani Wildani, Raja R. Sambasivan. In Journal of Systems Research, 2(1). February 2022. [PDF]

Serving DNNs like Clockwork: Performance Predictability from the Bottom Up. Arpan Gujarati, Reza Karimi, Safya Alzayat, Antoine Kaufmann, Wei Hao, Ymir Vigfusson, Jonathan Mace. At OSDI '20. November 2020. [pdf] [presentation] [git]. Distinguished Artifact Award.

Census: Counting Interleaved Functional Tenants on Shared Storage. Si Chen, Jianqiao Liu, Avani Wildani. In MSST 2020, October 2020

Optimal Data Placement for Heterogeneous Cache, Memory, and Storage Systems. Lei Zhang, Reza Karimi, Irfan Ahmad, Ymir Vigfusson. In SIGMETRICS '20. June 2020. [pdf] [presentationBest Student Paper Award.

Spread-n-share: improving application performance and cluster throughput with resource-aware job placement. Xiongchao Tang, Haojie Wang, Xiaosong Ma, Nosayba El-Sayed, Jidong Zhai, Wenguang Chen, Ashraf Aboulnaga. In SC ’19. November 2019. [DL]

Letting the Cloud Serve DNN Inferences with Ruthless Efficiency (poster). Reza Karimi, Anthony Simpson, Antoine Kaufmann, Ymir Vigfusson, Jonathan Mace. Workshop on AI Systems, co-located with SOSP 2019. October 2019. [pdf]

Autonomic Partitioning for the Smart Control of Wireless Mesh Networks. Sergio Gramacho, Felipe Gramacho, Avani Wildani.  In WiMOB-CWN2019, Barcelona, Spain. October 2019. [pdf]

Automatic, application-aware I/O forwarding resource allocation. Ji X, Yang B, Zhang T, Ma X, Zhu X, Wang X, Nosayba El-Sayed, Zhai J, Liu W, Xue W. In FAST '19. February 2019.

Chasing the Signal: Statistically Separating Multi-Tenant I/O Workloads. Si Chen, Avani Wildani. In ML for Systems, Montreal, Canada. December 2018. [pdf]

Mutant: Balancing Storage Cost and Latency in LSM-Tree Databases. Hobin Yoon, Juncheng Yang, Sveinn F. Kristjansson, Steinn E. Sigurdarson, Ymir Vigfusson, Ada Gavrilovska. In SOCC ‘18, Carlsbad, CA. [pdf]

Mithril: Mining Sporadic Associations for Cache Prefetching. Juncheng Yang, Reza Karimi, Trausti Saemundsson, Avani Wildani, Ymir Vigfusson. In SOCC ‘17, Santa Clara, CA. September 2017. [pdf]

Popularity Prediction of Facebook Videos for Higher Quality Streaming. Linpeng Tang, Qi Huang, Amit Puntambekar, Ymir Vigfusson, Wyatt Lloyd, Kai Li. In ATC ‘17, Santa Clara, CA. July 2017. [pdf] [Slides/Talk]

Fighting for a Niche: An Evolutionary Model of Storage. Avani Wildani. In HotStor'17, Santa Clara, CA. July 2017. 

Snapshot Judgments: Obtaining Data Insights without Tracing. Wenxuan Wang, Avani Wildani. In HotStor'17, Santa Clara, CA. July 2017. 

GOVERNOR: Smoother Stream Processing Through Smarter Backpressure. Xin Chen, Ymir Vigfusson, Douglas M. Blough, Fang Zheng, Kun-Lung Wu and Liting Hu. In ICAC ‘17, Columbus, OH. July 2017. [pdf]

Enabling Space Elasticity in Storage Systems. Helgi Sigurbjarnarson, Petur Orri Ragnarsson, Juncheng Yang, Ymir Vigfusson, Mahesh Balakrishnan. In SYSTOR’16, Haifa, Israel. June, 2016. [pdfBest Student Paper Award

Data Science

Dynamic Network Anomaly Modeling of Cell-Phone Call Detail Records for Infectious Disease Surveillance. Carl Yang, Hongwen Song, Mingyue Tang, Leon Danon, Ymir Vigfusson. At KDD 2022. [pdf]. Best Paper Award (Health Day Track).

Cellphone traces reveal infection-associated behavioral change. Ymir Vigfusson, Thorgeir A. Karlsson, Derek Onken, Congzheng Song, Atli F. Einarsson, Nishant Kishore, Rebecca M. Mitchell, Ellen Brooks-Pollock , Gudrun Sigmundsdottir, and Leon Danon. In Proceedings of the National Academy of Sciences (PNAS), 118(6). February 2021.  [pdf]    [DOI]

Development of a new barcode-based, multiplex-PCR, next-generation-sequencing assay and data processing and analytical pipeline for multiplicity of infection detection of Plasmodium falciparum. Rebecca M. Mitchell, Zhiyong Zhou, Mili Sheth, Sheila Sergent, Michael Frace, Vishal Nayak, Bin Hu, John Gimnig, Feiko ter Kuile, Kim Lindblade, Laurence Slutsker, Mary J. Hamel1, Meghna Desai1, Kephas Otieno, Simon Kariuki, Ymir Vigfusson and Ya Ping Shi. In Malaria Journal 20(92). February 2021.  [pdf]   [doi]  [talk]  [source] 

Aggressive, Repetitive, Intentional, Visible, and Imbalanced: Refining Representations for Cyberbullying Classification. Caleb Ziems, Ymir Vigfusson, Fred Morstatter. In ICWSM, June 2020. [pdfBest Paper Honorable Mention.

Flying, phones and flu: Anonymized call records suggest that Keflavik International Airport introduced pandemic H1N1 into Iceland in 2009. Nishant Kishore, Rebecca M. Mitchell, Timothy L. Lash, Carrie Reed, Leon Danon, Gudrun Sigmundsdottir, Ymir Vigfusson. In Influenza and Other Respiratory Viruses. January 2020.  [pdf]   [DOI

Impacts of snow and cloud covers on satellite-derived PM2.5 levels. Jianzhao Bi, Jessica H Belle, Yujie Wang, Alexei I Lyapustin, Avani Wildani, and Yang Liu. In Remote Sensing of Environment, February 2019. [pdf]

A Bayesian Framework for Molecular Strain Identification from Mixed Diagnostic Samples. Lauri Mustonen, Xiangxi Gao, Asteroide Santana, Rebecca M. Mitchell, Ymir Vigfusson, Lars Ruthotto. In Inverse Problems 34(10), October 2018. [pdf] [talk] [software]

Estimating PM2.5 Concentrations in the Conterminous United States Using the Random Forest Approach. Xuefei Hu, Jessica H Belle, Xia Meng, Avani Wildani, Lance A Waller, Matthew J Strickland, Yang Liu. In Environmental Science & Technology(12), June 2017. [pdf]