{"id":184087,"date":"2005-05-26T00:00:00","date_gmt":"2009-10-31T13:21:51","guid":{"rendered":"https:\/\/www.microsoft.com\/en-us\/research\/msr-research-item\/continuous-queries-over-data-streams\/"},"modified":"2016-09-09T09:48:54","modified_gmt":"2016-09-09T16:48:54","slug":"continuous-queries-over-data-streams","status":"publish","type":"msr-video","link":"https:\/\/www.microsoft.com\/en-us\/research\/video\/continuous-queries-over-data-streams\/","title":{"rendered":"Continuous Queries over Data Streams"},"content":{"rendered":"<div class=\"asset-content\">\n<p>Continuous queries are a common interface for monitoring dynamically changing data, including data streams. Applications include tracking financial trends, network health monitoring, and sensor deployments.<\/p>\n<p>In the STREAM project at Stanford, we have built a comprehensive prototype system that supports rich, declarative continuous queries over data streams.<\/p>\n<p>In this talk I will focus on continuous aggregation queries and address the following three problem settings.<\/p>\n<ol>\n<li>A large number of queries: Here a primary challenge is to share resources (e.g., space, computation) across different queries.<\/li>\n<li>Limited memory: Here the challenge is to design algorithms for maintaining approximate statistics making the best use of available memory.<\/li>\n<li>Distributed systems: Here a primary challenge is to minimize communication while correlating events on distributed streams.<\/li>\n<\/ol>\n<p>I will conclude with a brief summary of my other work, including continuous query language design and semantics, and characterizing memory requirements for continuous queries.<\/p>\n<\/div>\n<p><!-- .asset-content --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Continuous queries are a common interface for monitoring dynamically changing data, including data streams. Applications include tracking financial trends, network health monitoring, and sensor deployments. In the STREAM project at Stanford, we have built a comprehensive prototype system that supports rich, declarative continuous queries over data streams. In this talk I will focus on continuous [&hellip;]<\/p>\n","protected":false},"featured_media":289682,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","msr_hide_image_in_river":0,"footnotes":""},"research-area":[],"msr-video-type":[],"msr-locale":[268875],"msr-post-option":[],"msr-session-type":[],"msr-impact-theme":[],"msr-pillar":[],"msr-episode":[],"msr-research-theme":[],"class_list":["post-184087","msr-video","type-msr-video","status-publish","has-post-thumbnail","hentry","msr-locale-en_us"],"msr_download_urls":"","msr_external_url":"https:\/\/youtu.be\/GfHUl3cp_IE","msr_secondary_video_url":"","msr_video_file":"","_links":{"self":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-video\/184087","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-video"}],"about":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/types\/msr-video"}],"version-history":[{"count":0,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-video\/184087\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/media\/289682"}],"wp:attachment":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/media?parent=184087"}],"wp:term":[{"taxonomy":"msr-research-area","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/research-area?post=184087"},{"taxonomy":"msr-video-type","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-video-type?post=184087"},{"taxonomy":"msr-locale","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-locale?post=184087"},{"taxonomy":"msr-post-option","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-post-option?post=184087"},{"taxonomy":"msr-session-type","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-session-type?post=184087"},{"taxonomy":"msr-impact-theme","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-impact-theme?post=184087"},{"taxonomy":"msr-pillar","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-pillar?post=184087"},{"taxonomy":"msr-episode","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-episode?post=184087"},{"taxonomy":"msr-research-theme","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-research-theme?post=184087"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}