-
Notifications
You must be signed in to change notification settings - Fork 1
/
CARP.html
186 lines (145 loc) · 9.68 KB
/
CARP.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="WS-DREAM: Open Datasets and Source Code for Web Service Research">
<meta name="author" content="WS-DREAM Team">
<title>CARP: Context-Aware Reliability Prediction of Black-Box Web Services</title>
<link rel="shortcut icon" href="img/favicon.ico" />
<!-- Bootstrap Core CSS -->
<link href="css/bootstrap.min.css" rel="stylesheet">
<!-- Custom CSS -->
<link href="css/landing-page.css" rel="stylesheet">
<link href="css/clean-blog-plus.css" rel="stylesheet">
<!-- Custom Fonts -->
<link href="font-awesome/css/font-awesome.min.css" rel="stylesheet" type="text/css">
<link href="https://fonts.googleapis.com/css?family=Lato:300,400,700,300italic,400italic,700italic" rel="stylesheet" type="text/css">
<link href="http://fonts.googleapis.com/css?family=Arimo:300,400,700,300italic,400italic,700italic" rel="stylesheet" type="text/css">
<link href="http://maxcdn.bootstrapcdn.com/font-awesome/4.1.0/css/font-awesome.min.css" rel="stylesheet" type="text/css">
<link href='http://fonts.googleapis.com/css?family=PT+Sans' rel='stylesheet' type='text/css'>
<link href='http://fonts.googleapis.com/css?family=Lora:400,700,400italic,700italic' rel='stylesheet' type='text/css'>
<link href='http://fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800' rel='stylesheet' type='text/css'>
<!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
<!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
<script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<body>
<!-- Navigation -->
<nav id="mainNav" class="navbar navbar-default navbar-fixed-top">
<div class="container">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
<span class="sr-only">Toggle navigation</span><i class="fa fa-bars"></i>
</button>
<a class="navbar-brand page-scroll" href="http://wsdream.github.io">WS-DREAM</a>
</div>
</div>
<!-- /.container-fluid -->
</nav>
<!-- Header -->
<a name="about"></a>
<div class="intro-header">
<div class="container">
<div class="row">
<div class="col-lg-10 col-lg-offset-1">
<div class="post-heading">
<h1>CARP: Context-Aware Reliability Prediction of Web Services</h1>
<h2 class="subheading"></h2>
<span class="meta"><a href="http://jiemingzhu.github.io" target="_blank">Jieming Zhu</a>, <a href="https://www.cse.cuhk.edu.hk/~pjhe" target="_blank">Pinjia He</a>, <a href="http://www.zibinzheng.com" target="_blank">Zibin Zheng</a>, and <a href="http://www.cse.cuhk.edu.hk/lyu/" target="_blank">Michael R. Lyu</a><br><br>Department of Computer Science and Engineering<br>The Chinese University of Hong Kong</span>
</div>
</div>
</div>
</div>
<!-- /.container -->
</div>
<!-- /.intro-header -->
<!-- Page Content -->
<section id="intro" class="bg-light-white">
<div class="container">
<div class="row">
<div class="col-lg-10 col-lg-offset-1">
<p>Reliability prediction is an important task in software reliability engineering, which has been widely studied in the last few decades. However, existing studies have mostly focused on reliability analysis of traditional software, but little on modelling and predicting user-perceived reliability of emerging software services, which remains an open research problem. Unlike traditional software components, software services, such as Web services and Web APIs, generally provide black-box functionalities to users over the Internet. Traditional reliability models become inapplicable due to a lack of internal information for reliability analysis. Furthermore, from a user's perspective, reliability not only depends on a service itself, but also is highly influenced by the context of service invocations (e.g., service load and network conditions). In this work, we propose CARP, a context-aware reliability prediction approach for black-box services. CARP models user-perceived reliability as a function jointly determined by the (user, service, context) tuple of a service invocation, and further constructs the model by a novel formulation of context-specific matrix factorization. To guarantee computational efficiency, CARP comprises an offline step to train the context-aware reliability model from historical invocation data, and another online step to support on-demand reliability predictions for ongoing service invocations. Through context-aware reliability modelling, CARP is able to alleviate the data sparsity problem that heavily limits prediction accuracy of other existing approaches. The evaluation results from a real service usage dataset collected on Amazon EC2 show that CARP can better capture the characteristics inherent in reliability of black-box services, and therefore yields a significant improvement in prediction accuracy (up to 41% in MAE and 38% in RMSE) over the state-of-the-art reliability prediction models.<br><br></p>
<p>Read more information from our paper:
<p>Jieming Zhu, Pinjia He, Zibin Zheng, and Michael R. Lyu, "<a href="http://arxiv.org/pdf/1503.00102v1" target="_blank">CARP: Context-Aware Reliability Prediction of Black-Box Web Services</a>," in <i>Proc. of the 24th International Conference on Web Services (ICWS)</i>, 2017.</p></p>
</p>
</div>
</div>
</div>
<!-- /.container -->
</section>
<section id="dataset" class="bg-light-gray">
<div class="container">
<div class="row">
<div class="col-lg-10 col-lg-offset-1">
<h3 class="section-heading">Dataset
<hr class="section-heading-spacer"></h3>
<div class="clearfix"></div>
<p>The data used in our work is a publicly-released reliability dataset. It provides the measured reliability data that was collected from distributed agents on the Amazon EC2 cloud. If you would like to use the dataset, please contact the data owner <a href="http://ccl.fer.hr/wordpress/people/research-assistants/marin-silic/" target="_blank">Dr. Marin Silic</a> from University of Zagreb.</p>
</div>
</div>
</div>
<!-- /.container -->
</section>
<section id="code" class="bg-light-white">
<div class="container">
<div class="row">
<div class="col-lg-10 col-lg-offset-1">
<h3 class="section-heading">Code
<hr class="section-heading-spacer"></h3>
<div class="clearfix"></div>
<p>The source code of our implementations on CARP has been publicly released. You can fork it on our GitHub repository. We have also implemented 30+ other existing QoS prediction approaches for Web service recommendation in the WS-DREAM project. The code is well structured and can be easily extended to new implementations. Please feel free to contact us if you have any comments or questions regarding the code. We also appreciate any contributions from you.
</p>
</div>
<div class="col-lg-8 col-lg-offset-2 text-center">
<a href="https://github.com/wsdream/CARP" class="btn btn-lg btn-outline">
<i class="fa fa-github fa-fw"></i> Fork GitHub Repo
</a>
<br><br><br><br>
</div>
</div>
</div>
<!-- /.container -->
</section>
<section class="banner">
<div class="container banner-content">
<div class="row">
<div class="col-lg-6 col-lg-offset-2 text-center">
<h2>Contribute to WS-DREAM:</h2>
</div>
<div class="col-sm-2 text-center">
<ul class="list-inline banner-social-buttons">
<li>
<a href="https://github.com/wsdream" class="btn btn-default btn-lg"><i class="fa fa-github fa-fw"></i> <span class="network-name">Github</span></a>
</li>
</ul>
</div>
</div>
</div>
<div class="overlay"></div>
<!-- /.container -->
</section>
<!-- /.banner -->
<!-- Footer -->
<footer>
<div class="container">
<div class="row">
<div class="col-lg-12">
<p class="copyright text-muted small">Copyright © WS-DREAM Team 2017. All Rights Reserved</p>
</div>
</div>
</div>
</footer>
<!-- jQuery -->
<script src="js/jquery.js"></script>
<!-- Bootstrap Core JavaScript -->
<script src="js/bootstrap.min.js"></script>
<!-- Theme JavaScript -->
<script src="js/creative.min.js"></script>
</body>
</html>