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| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> | ||
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| window.onload = function() { | ||
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| <link href="../TextStyle.css" rel="stylesheet" type="text/css"><title>Mohsen Lesani</title><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body alink="#ee0000" link="#0000ee" vlink="#551a8b"> | ||
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| <td style="vertical-align: top; text-align: right;"><a href="../../index.html"><span class="TextStyle"><br> | ||
| </span></a></td> | ||
| <td style="vertical-align: top;"><br> | ||
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| <td style="background-color: rgb(255, 255, 255); width: 690px;"> | ||
| <div style="text-align: right;"> </div> | ||
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| <p class="AbstractHeaderStyle"><span style="color: rgb(34, 34, 34); font-family: arial,sans-serif; font-size: 13px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; display: inline ! important; float: none;"><span class="TextStyle"><span class="AbstractStyle"><span class="AuthorStyle"></span></span></span></span>Hambazi: Spatial Coordination Synthesis for Augmented Reality<br> | ||
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| <td style="vertical-align: top;"><span style="color: rgb(34, 34, 34); font-family: arial,sans-serif; font-size: 13px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; display: inline ! important; float: none;"><span class="TextStyle"><span class="AbstractStyle"><span class="AuthorStyle">OOPSLA '25 (ACM SIGPLAN conference on Object-oriented Programming, Systems, Languages, and Applications)<br> | ||
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| <td style="vertical-align: top;"><span style="color: rgb(34, 34, 34); font-family: arial,sans-serif; font-size: 13px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; display: inline ! important; float: none;"><span class="TextStyle"><span class="AbstractStyle"><span class="AuthorStyle">Yi-Zhen Tsai, Jiasi Chen, Mohsen Lesani<br> | ||
| </span></span></span></span> </td> | ||
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| <td class="AbstractStyle"> | ||
| <p><span class="AbstractStyle">Augmented | ||
| reality (AR) seamlessly overlays virtual objects onto the real world, | ||
| enabling an exciting new range of applications. Multiple users view and | ||
| interact with virtual objects, which are replicated and shown on each | ||
| user’s display. A key requirement of AR is that the replicas should be | ||
| quickly updated and converge to the same state; otherwise, users may | ||
| have laggy or inconsistent views of the virtual object, which | ||
| negatively affects their experience. A second key requirement is that | ||
| the movements of virtual objects in space should preserve certain | ||
| integrity properties either due to physical boundaries in the real | ||
| world, or privacy and safety preferences of the user. For example, a | ||
| virtual cup should not sink into a table, or a private virtual | ||
| whiteboard should stay within an office. The challenge tackled in this | ||
| paper is the coordination of virtual objects with low latency, spatial | ||
| integrity properties and convergence. We introduce “well-organized” | ||
| replicated data types that guarantee these two properties. Importantly, | ||
| they capture a local notion of conflict that supports more concurrency | ||
| and lower latency. To implement well-organized virtual objects, we | ||
| introduce a credit scheme and replication protocol that further | ||
| facilitate local execution, and prove the protocol’s correctness. Given | ||
| an AR environment, we automatically derive conflicting actions through | ||
| constraint solving, and statically instantiate the protocol to | ||
| synthesize custom coordination. We evaluate our implementation, | ||
| Hambazi, on off-the-shelf Android AR devices and show a latency | ||
| reduction of 30.5-88.4% and a location staleness reduction of | ||
| 35.6-75.6%, compared to three baselines, for varying numbers of | ||
| devices, AR environments, request loads, and network conditions.<br> | ||
| </span></p> | ||
| <p><span class="AbstractStyle"><br> | ||
| </span></p> | ||
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| <td style="vertical-align: top;"><span class="TextStyle"><span class="TextStyle"></span></span><a href="ICFP21.pdf"><span class="TextStyle"><span class="TextStyle"><span style="text-decoration: underline;"></span></span></span></a><span class="TextStyle"><span class="TextStyle"><a href="DISC24Short.pdf">[</a>Paper<a href="DISC24Short.pdf">]</a><br> | ||
| </span></span> | ||
| <span class="TextStyle"><span class="TextStyle"> [Slides]<br> | ||
| <br> | ||
| </span></span> | ||
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