Browsing by Author "Cankaya H.C."

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Citation - Scopus: 4
Commonsense Knowledge Extraction Using Concepts Properties
(2011) Blanco E.; Cankaya H.C.; Moldovan D.
This paper presents a semantically grounded method for extracting commonsense knowledge. First, commonsense rules are identified, e.g., one cannot see imaginary objects. Second, those rules are combined with a basic semantic representation in order to infer commonsense knowledge facts, e.g. one cannot see a flying carpet. Further combinations of semantic relations with inferred commonsense facts are proposed and analyzed. Results show that this novel method is able to extract thousands of commonsense facts with little human interaction and high accuracy. Copyright © 2011, Association for the Advancement of Artificial Intelligence. All rights reserved.
Enhancing Location Information Using Semantic Composition
(2010) Cankaya H.C.; Blanco E.; Moldovan D.
This paper presents a method to enhance location awareness by using semantic composition of AT-LOCATION and PART-WHOLE semantic relations. The method generates axioms that infer new location relations based on relations that are extracted by a semantic parser. Experimental study with WordNet glosses shows that the method increases the amount of location knowledge by two orders of magnitude. The precision of the results is 98%. © 2010 IEEE.
Survivable Impairment-Aware Traffic Grooming and Regenerator Placement With Shared Connection-Level Protection
(2011) Gao C.; Cankaya H.C.; Patel A.N.; Jue J.P.; Wang X.; Zhang Q.; Palacharla P.
In this paper, we address the problem of survivable traffic grooming and regenerator placement in optical WDM networks with impairment constraints. The working connections are protected end to end by provisioning bandwidth along a sequence of lightpaths by using a shared connection-level protection scheme. An auxiliary-graph-based approach is proposed to address the placement of regenerators and grooming equipment for both working and shared backup connections in the network with the goal of minimizing the total equipment cost. Simulation results show that the proposed algorithm outperforms the dedicated connection-level protection algorithm as the load increases. © 2011 IEEE.