{"id":32,"date":"2021-02-04T14:57:30","date_gmt":"2021-02-04T19:57:30","guid":{"rendered":"https:\/\/sites.bu.edu\/casp\/?page_id=32"},"modified":"2026-01-07T03:33:56","modified_gmt":"2026-01-07T08:33:56","slug":"publications","status":"publish","type":"page","link":"https:\/\/sites.bu.edu\/casp\/publications\/","title":{"rendered":"Publications"},"content":{"rendered":"<h3>2026<\/h3>\n<ul>\n<li><em>Yizheng Xie, Di Jin,\u00a0O\u011fuzhan \u00c7\u00f6lkesen,\u00a0Vasiliki Kalavri,\u00a0John Liagouris, and Nikos Vasilakis<\/em><em>.<\/em> <strong><span class=\"taghl\"><span class=\"ptitle\">Slowpoke: End-to-end Throughput Optimization Modeling for Microservice Applications<\/span><\/span><\/strong>.<em><em> The 23<sup>rd<\/sup><\/em><\/em>\u00a0USENIX Symposium on Networked Systems Design and Implementation\u00a0<em>(NSDI&#8217;26)<\/em>. [<a href=\"\/casp\/files\/2026\/01\/slowpoke_nsdi_2026.pdf\">pdf<\/a>] [<a href=\"https:\/\/github.com\/atlas-brown\/slowpoke\">code<\/a>]<\/li>\n<\/ul>\n<h3>2025<\/h3>\n<ul>\n<li><em>Eli Baum, Sam Buxbaum, Nitin Mathai, Muhammad Faisal, Vasiliki Kalavri, Mayank Varia, and John Liagouris.<\/em> <strong>ORQ: Complex analytics on private data with strong security\u00a0 guarantees. <span style=\"color: #ff0000;\">Distinguished Artifact Award<\/span><\/strong>.<em>\u00a0The 31<sup>st<\/sup> Symposium on Operating Systems Principles (SOSP&#8217;25)<\/em>. [<a href=\"\/casp\/files\/2025\/09\/orq-sosp25.pdf\">pdf<\/a>] [<a href=\"https:\/\/github.com\/CASP-Systems-BU\/orq\">code<\/a>]<\/li>\n<li><em>Yuan Mei, Zhaoqian Lan, <span>Lei Huang<\/span>, Yanfei Lei, Han Yin,\u00a0Rui Xia,\u00a0Kaitian Hu,\u00a0Paris Carbone,\u00a0<span>Vasiliki Kalavri<\/span>,\u00a0<\/em><em>Feng Wang<\/em>. <strong>Disaggregated State Management in Apache Flink 2.0. <\/strong>\u00a0<span><em>Proceedings of the VLDB Volume 18 (VLDB\u201925) <\/em>[<a href=\"https:\/\/www.vldb.org\/pvldb\/vol18\/p4846-mei.pdf\">pdf<\/a>].<\/span><\/li>\n<li>Yuanli Wang, Lei Huang, Zikun Wang, Vasiliki Kalavri, and Ibrahim Matta. <strong>CAPSys: Contention-aware task placement for data stream processing<\/strong>. <em>In the Twentieth European Conference on Computer Systems (EuroSys &#8217;25)<\/em>. [<a href=\"https:\/\/hdl.handle.net\/2144\/49285\">pdf<\/a>] [<a href=\"https:\/\/github.com\/CASP-Systems-BU\/CAPSys\">code<\/a>]<\/li>\n<li><i>Qixuan Chen, Yuhang Song, Melissa Martinez, and Vasiliki Kalavri. <\/i><b><span>RingSampler: GNN sampling on large-scale graphs with io_uring<\/span>.<\/b> <em>In the 17th ACM Workshop on Hot Topics in Storage and File Systems (HotStorage\u201925)<\/em>. [<a href=\"https:\/\/github.com\/CASP-Systems-BU\/RingSampler\">code<\/a>] [<a href=\"https:\/\/doi.org\/10.1145\/3736548.3737829\">doi<\/a>]<\/li>\n<li>Naima Abrar Shami and Vasiliki Kalavri. <strong>Bridging<\/strong><b> GNN Inference and Dataflow Stream Processing: Challenges and Opportunities. <\/b><em>In the 8th Joint Workshop on Graph Data Management Experiences &amp; Systems (GRADES) and Network Data Analytics (NDA). <span>(GRADES-NDA&#8217;25, co-located with SIGMOD&#8217;25).<\/span><\/em> [<a href=\"https:\/\/github.com\/CASP-Systems-BU\/GNN_InferenceStream\">code<\/a>][<a href=\"https:\/\/dl.acm.org\/doi\/10.1145\/3735546.3735856\">doi<\/a>]<\/li>\n<\/ul>\n<h3>2024<\/h3>\n<ul>\n<li>Ethan Seow, Yan Tong, Eli Baum, Sam Buxbaum, Muhammad Faisal, John Liagouris, Vasiliki Kalavri, and Mayank Varia. <strong>QueryShield: Cryptographically Secure Analytics in the Cloud<\/strong>. <em>In the 2024 International Conference on Management of Data (SIGMOD\/PODS &#8217;24)<\/em>. [<a href=\"https:\/\/dl.acm.org\/doi\/pdf\/10.1145\/3626246.3654749\">pdf<\/a>] [<a href=\"https:\/\/github.com\/CASP-Systems-BU\/queryshield-demo\">code<\/a>]<\/li>\n<li>Yuhang Song, Po Hao Chen, Yuchen Lu, Naima Abrar and Vasiliki Kalavri. <strong>In situ neighborhood sampling for large-scale GNN training<\/strong>. <span style=\"color: #ff0000;\"><strong>Best Short Paper Award<\/strong><\/span>. In Proceedings of the <em>20th International Workshop on Data Management on New Hardware (DaMoN &#8217;24)<\/em>. [<a href=\"https:\/\/dl.acm.org\/doi\/pdf\/10.1145\/3662010.3663443\">pdf<\/a>] [<a href=\"https:\/\/github.com\/CASP-Systems-BU\/damon24-gnn-in-situ-sampling\">code<\/a>]<\/li>\n<li>Sonia Horchidan, <span>Po Hao Chen<\/span>, Emmanouil Kritharakis, Paris Carbone and Vasiliki Kalavri. <strong>Crayfish: Navigating the Labyrinth of Machine Learning Inference in Stream Processing Systems.<\/strong> In the <em>27th International Conference on Extending Database Technology (EDBT&#8217;24)<\/em>. [<a href=\"https:\/\/openproceedings.org\/2024\/conf\/edbt\/paper-156.pdf\">pdf<\/a>] [<a href=\"https:\/\/github.com\/soniahorchidan\/crayfish23\">code<\/a>]<\/li>\n<\/ul>\n<h3>2023<\/h3>\n<ul>\n<li>Marios Fragkoulis, Paris Carbone, Vasiliki Kalavri, and Asterios Katsifodimos. <strong>A Survey on the Evolution of Stream Processing Systems.<\/strong> In <em>the VLDB Journal<\/em>. [<a href=\"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00778-023-00819-8.pdf\">pdf<\/a>] [<a href=\"https:\/\/link.springer.com\/article\/10.1007\/s00778-023-00819-8#citeas\">cite<\/a>]<\/li>\n<li>Muhammad Faisal, Jerry Zhang, John Liagouris, Vasiliki Kalavri, and Mayank Varia. <strong>TVA: A multi-party computation system for secure and expressive time series analytics<\/strong>. In <i>32nd USENIX Security Symposium (Security&#8217;23). <\/i>[<a href=\"\/casp\/files\/2023\/09\/tva-sec23.pdf\">pdf<\/a>]\u00a0[<a href=\"https:\/\/eprint.iacr.org\/2023\/1120\">technical report<\/a>] [<a href=\"https:\/\/github.com\/CASP-Systems-BU\/tva\">code<\/a>]<\/li>\n<li>John Liagouris, Vasiliki Kalavri, Muhammad Faisal and Vayank Varia. <strong>Secrecy: Secure collaborative analytics in untrusted clouds<\/strong>. In 20<i>th USENIX Symposium on Networked Systems Design and Implementation (NSDI&#8217;23). <\/i>[<a href=\"\/casp\/files\/2022\/10\/secrecy-nsdi23.pdf\">pdf<\/a>] [<a href=\"https:\/\/github.com\/CASP-Systems-BU\/Secrecy\">code<\/a>]<i><br \/>\n<\/i><\/li>\n<\/ul>\n<h3>2022<\/h3>\n<ul>\n<li><span>Micha\u0142 Zwolak, Zainab Abbas, Sonia Horchidan, Paris Carbone<\/span>\u00a0and Vasiliki Kalavri. <strong>GCNSplit: Bounding the State of Streaming Graph Partitioning<\/strong>. In <i>Proceedings of the International Workshop<span> on Exploiting Artificial Intelligence Techniques for Data Management 2022<\/span><\/i><span> (aiDM&#8217;22, co-located with SIGMOD&#8217;22). [<a href=\"\/casp\/files\/2022\/05\/Zwolak22Bounding.pdf\">pdf<\/a>]<\/span><\/li>\n<li>Sonia Horchidan, Emmanouil Kritharakis, Vasiliki Kalavri, Paris Carbone. <b>Evaluating Model Serving Strategies over Streaming Data.<\/b>\u00a0<span style=\"color: #ff0000;\"><strong>Best Paper Award<\/strong><\/span>. In <i>Proceedings of the International Workshop on Data Management for End-to-End Machine Learning <\/i><span>2022 (DEEM&#8217;22, co-located with SIGMOD&#8217;22). [<a href=\"\/casp\/files\/2022\/05\/Horchidan22Evaluating.pdf\">pdf<\/a>]<\/span><\/li>\n<li>Yuanli Wang, Baiqing, Lyu and Vasiliki Kalavri. <strong>The <em>Non-Expert Tax<\/em>: Quantifying the cost of auto-scaling in Cloud-based data stream analytics<\/strong>. In <i>Proceedings of the International Workshop on Big Data in Emergent Distributed Environments\u00a0<\/i><span>2022 (BiDEDE&#8217;22, co-located with SIGMOD&#8217;22). [<a href=\"\/casp\/files\/2022\/05\/Wang22NonExpert.pdf\">pdf<\/a>] [<a href=\"https:\/\/dl.acm.org\/doi\/abs\/10.1145\/3530050.3532925\">cite<\/a>]<\/span><\/li>\n<li><span>Esmail Asyabi, Yuanli Wang, John Liagouris, Vasiliki Kalavri, and Azer Bestavros. 2022. <strong>A new benchmark harness for systematic and robust evaluation of streaming state stores<\/strong>. In <\/span><i>Proceedings of the Seventeenth European Conference on Computer Systems<\/i><span> (<\/span><i>EuroSys &#8217;22<\/i><span>). [<a href=\"https:\/\/dl.acm.org\/doi\/pdf\/10.1145\/3492321.3519592\">pdf<\/a>]<\/span><\/li>\n<li><span>Massimo Perini, Giorgia Ramponi, Paris Carbone and Vasiliki Kalavri. <strong>Learning on Streaming Graphs with Experience Replay<\/strong>. In <i>Proceedings of the 37th Annual ACM Symposium on Applied Computing<\/i>. [<a href=\"https:\/\/sites.bu.edu\/casp\/files\/2021\/12\/online-gnn-SAC-preprint.pdf\" rel=\"attachment noopener wp-att-319 noreferrer\" target=\"_blank\">preprint pdf<\/a>].<\/span><\/li>\n<\/ul>\n<h3>2021<\/h3>\n<ul>\n<li>M. Besta, M. Fischer, V. Kalavri, M. Kapralov and T. Hoefler. <strong>Practice of Streaming Processing of Dynamic Graphs: Concepts, Models, and Systems<\/strong>. In IEEE Transactions on Parallel and Distributed Systems, doi: 10.1109\/TPDS.2021.3131677. <span>[<a href=\"https:\/\/ieeexplore.ieee.org\/document\/9629281\">pdf<\/a>]<\/span><\/li>\n<li>Raza Ali, Matta Ibrahim, Akhtar Nabeel, Kalavri Vasiliki, Isahagian Vatche. <strong>SoK: Function-as-a-Service: From An Application Developer&#8217;s Perspective<\/strong>. In <em>Journal of Systems Research (JSys)<\/em>. September 2021. [<a href=\"https:\/\/escholarship.org\/uc\/item\/1wg7h0qf\">pdf<\/a>]<\/li>\n<li><span>Liagouris, J., Kalavri, V., Faisal, M. and Varia, M., 2021. <strong>Secrecy: Secure collaborative analytics on secret-shared data<\/strong>. <\/span><i>arXiv preprint arXiv:2102.01048<\/i><span><span><span>. [<a href=\"https:\/\/arxiv.org\/abs\/2102.01048\">pdf<\/a>]<\/span><\/span><\/span><\/li>\n<li><span><span><span>Sakr S, Bonifati A, Voigt H, Iosup A et al. <strong>The Future is Big Graphs! A Community View on Graph Processing Systems<\/strong>. In <em>Communications\u00a0of the\u00a0ACM, 2021 <\/em>[<a href=\"https:\/\/arxiv.org\/abs\/2012.06171\">pdf<\/a>]<\/span><\/span><\/span><\/li>\n<\/ul>\n<h3>2020<\/h3>\n<ul>\n<li><span>Fragkoulis, M., Carbone, P., Kalavri, V. and Katsifodimos, A., 2020. <strong>A Survey on the Evolution of Stream Processing Systems<\/strong>.\u00a0<\/span><i>arXiv preprint arXiv:2008.00842<\/i><span><span><span>. [<a href=\"https:\/\/arxiv.org\/abs\/2008.00842\">pdf<\/a>]<\/span><\/span><\/span><\/li>\n<li><span><span>Kalavri, V. and Liagouris, J., 2020. <strong>In support of workload-aware streaming state management<\/strong>. <strong><span style=\"color: #ff0000;\">Outstanding New Research Direction Award<\/span><\/strong>. <\/span><\/span><span>In\u00a0<\/span><i>12th USENIX Workshop on Hot Topics in Storage and File Systems (HotStorage 20)<\/i><span><span><span>. [<a href=\"https:\/\/www.usenix.org\/system\/files\/hotstorage20_paper_kalavri.pdf\">pdf<\/a>]<\/span><\/span><\/span><\/li>\n<li><span>Carbone, P., Fragkoulis, M., Kalavri, V. and Katsifodimos, A., 2020, June. <strong>Beyond analytics: The evolution of stream processing systems<\/strong>. In\u00a0<\/span><i>Proceedings of the 2020 ACM SIGMOD international conference on Management of data<\/i><span><span><span>\u00a0(pp. 2651-2658). [pdf]<\/span><\/span><\/span><\/li>\n<li><span>Besta, M., Fischer, M., Kalavri, V., Kapralov, M. and Hoefler, T., 2020. <strong>Practice of streaming and dynamic graphs: Concepts, models, systems, and parallelism<\/strong>.\u00a0<i>Computing Research Repository (CoRR)<\/i>. [<a href=\"https:\/\/arxiv.org\/abs\/1912.12740\">pdf<\/a>]<\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>2026 Yizheng Xie, Di Jin,\u00a0O\u011fuzhan \u00c7\u00f6lkesen,\u00a0Vasiliki Kalavri,\u00a0John Liagouris, and Nikos Vasilakis. Slowpoke: End-to-end Throughput Optimization Modeling for Microservice Applications. The 23rd\u00a0USENIX Symposium on Networked Systems Design and Implementation\u00a0(NSDI&#8217;26). [pdf] [code] 2025 Eli Baum, Sam Buxbaum, Nitin Mathai, Muhammad Faisal, Vasiliki Kalavri, Mayank Varia, and John Liagouris. ORQ: Complex analytics on private data with strong security\u00a0 [&hellip;]<\/p>\n","protected":false},"author":18854,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/sites.bu.edu\/casp\/wp-json\/wp\/v2\/pages\/32"}],"collection":[{"href":"https:\/\/sites.bu.edu\/casp\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sites.bu.edu\/casp\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sites.bu.edu\/casp\/wp-json\/wp\/v2\/users\/18854"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.bu.edu\/casp\/wp-json\/wp\/v2\/comments?post=32"}],"version-history":[{"count":51,"href":"https:\/\/sites.bu.edu\/casp\/wp-json\/wp\/v2\/pages\/32\/revisions"}],"predecessor-version":[{"id":933,"href":"https:\/\/sites.bu.edu\/casp\/wp-json\/wp\/v2\/pages\/32\/revisions\/933"}],"wp:attachment":[{"href":"https:\/\/sites.bu.edu\/casp\/wp-json\/wp\/v2\/media?parent=32"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}