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  Partner: UNT College of Engineering
 Decade: 2000-2009
 Year: 2009
 Collection: UNT Scholarly Works
Subjectivity Word Sense Disambiguation

Subjectivity Word Sense Disambiguation

Date: August 2009
Creator: Akkaya, Cem; Wiebe, Janyce & Mihalcea, Rada
Description: This paper investigates a new task, subjectivity word sense disambiguation (SWSD), which is to automatically determine which word instances in a corpus are being used with subjective senses, and which are being used with objective senses. The authors provide empirical evidence that SWSD is more feasible than full word sense disambiguation, and that it can be exploited to improve the performance of contextual subjectivity and sentiment analysis systems.
Contributing Partner: UNT College of Engineering
Robocamp: Encouraging Young Women to Embrace STEM

Robocamp: Encouraging Young Women to Embrace STEM

Date: February 2009
Creator: Akl, Robert G. & Keathly, David
Description: This paper describes the efforts and results of a plan for actively recruiting students to undergraduate computer science and engineering programs at the University of North Texas (UNT). Such recruitment of students is critical to the country's efforts to increase the number of engineering professionals, and is a priority for the Computer Science and Engineering (CSE) Department at UNT.
Contributing Partner: UNT College of Engineering
Non-Uniform Grid-Based Coordinated Routing in Wireless Sensor Networks

Non-Uniform Grid-Based Coordinated Routing in Wireless Sensor Networks

Date: 2009
Creator: Akl, Robert G.; Kadiyala, Priyanka & Haidar, Mohamad
Description: This paper presents a non-uniform grid-based coordinated routing design in wireless sensor networks. The conditions leading to network partition and analysis of energy consumption that prolongs the network lifetime are studied. The authors focus on implementing routing in densely populated sensor networks. By maintaining constant values for parameters such as path loss exponent, receiver sensitivity and transmit power, and varying between uniform and non-uniform grids, we observe energy consumption patterns for each of the grid structures and infer from the network lifetime the better suited grids for uniformly and randomly deployed sensor nodes.
Contributing Partner: UNT College of Engineering
Non-Uniform Grid-Based Routing in Sensor Networks

Non-Uniform Grid-Based Routing in Sensor Networks

Date: 2009
Creator: Akl, Robert G.; Kadiyala, Priyanka & Haidar, Mohamad
Description: This paper discusses non-uniform grid-based routing in sensor networks. A non-uniform grid-based coordinated routing design in wireless sensor networks is presented. The conditions leading to network partition and analysis of energy consumption that prolongs the network lifetime are studied. The authors implement routing in heavily populated sensor networks. By maintaining constant values for parameters such as path loss exponent, receiver sensitivity and transmit power, and varying between uniform and non-uniform grids, we observe energy consumption patters for each of the grid structures, and infer from the network lifetime the better suited grids for uniformly and randomly deployed sensor nodes.
Contributing Partner: UNT College of Engineering
Robocamp: Encouraging Young Women to Embrace STEM

Robocamp: Encouraging Young Women to Embrace STEM

Date: February 2009
Creator: Akl, Robert G.; Keathly, David & Garlick, Ryan
Description: This presentation discusses Robocamp, a special summer camp that was created by the University of North Texas (UNT) Computer Science and Engineering department. Robocamp successfully promotes engineering among high school women.
Contributing Partner: UNT College of Engineering
The Decomposition of Human-Written Book Summaries

The Decomposition of Human-Written Book Summaries

Date: March 2009
Creator: Ceylan, Hakan & Mihalcea, Rada, 1974-
Description: In this paper, the authors evaluate the extent to which human-written book summaries can be obtained through cut-and-paste operations from the original book. The authors analyze the effect of the parameters involved in the decomposition algorithm, and highlight the distinctions in coverage obtained for different summary types.
Contributing Partner: UNT College of Engineering
Topic Identification Using Wikipedia Graph Centrality

Topic Identification Using Wikipedia Graph Centrality

Date: May 2009
Creator: Coursey, Kino High & Mihalcea, Rada
Description: This paper presents a method for automatic topic identification using a graph-centrality algorithm applied to an encyclopedic graph derived from Wikipedia. When tested on a data set with manually assigned topics, the system is found to significantly improve over a simpler baseline that does not make use of the external encyclopedic knowledge.
Contributing Partner: UNT College of Engineering
Using Encyclopedic Knowledge for Automatic Topic Identification

Using Encyclopedic Knowledge for Automatic Topic Identification

Date: May 2009
Creator: Coursey, Kino High & Mihalcea, Rada
Description: This paper presents a method for automatic topic identification using an encyclopedic graph derived from Wikipedia. The system is found to exceed the performance of previously proposed machine learning algorithms for topic identification, with an annotation consistency comparable to human annotations.
Contributing Partner: UNT College of Engineering
Maya: A Novel Block Encryption Function

Maya: A Novel Block Encryption Function

Date: May 2009
Creator: Gomathisankaran, Mahadevan & Lee, Ruby B.
Description: In this paper, the authors propose a novel methodology to design Block Cipher functions. This methodology is illustrated with the design of a specific block cipher function Maya. The authors' design philosophy is to derive the S-Boxes themselves from the secret key. This makes breaking any round function equivalent to guessing all the key-bits. Advantages of our design include much larger key sizes in relation to the block size, an order of magnitude improvement in the hardware implementation efficiency together with the necessary resistance to cryptanalysis.
Contributing Partner: UNT College of Engineering
Tantra: A fast PRNG algorithm and its implementation

Tantra: A fast PRNG algorithm and its implementation

Date: June 2009
Creator: Gomathisankaran, Mahadevan & Lee, Ruby B.
Description: This paper discusses Tantra. Tantra is a novel Pseudorandom number generator (PRNG) design that provides a long sequence high quality pseudorandom numbers at very high rate both in software and hardware implementations.
Contributing Partner: UNT College of Engineering
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