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NAACL
2010
13 years 10 months ago
Query Ambiguity Revisited: Clickthrough Measures for Distinguishing Informational and Ambiguous Queries
Understanding query ambiguity in web search remains an important open problem. In this paper we reexamine query ambiguity by analyzing the result clickthrough data. Previously pro...
Yu Wang, Eugene Agichtein
SPIN
2005
Springer
14 years 6 months ago
Execution Generated Test Cases: How to Make Systems Code Crash Itself
Abstract. This paper presents a technique that uses code to automatically generate its own test cases at run-time by using a combination of symbolic and concrete (i.e., regular) ex...
Cristian Cadar, Dawson R. Engler
POLICY
2009
Springer
14 years 7 months ago
In Vivo Evolution of Policies that Govern a Distributed System
This paper addresses an important open problem confronting any decentralized and stateful access control (AC) mechanism for networked systems, particularly when the system at hand...
Constantin Serban, Naftaly H. Minsky