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Articles 1 - 30 of 56
Full-Text Articles in Communication
A Transformer Based Architecture For Indonesian Sentiment Analysis - Exploring Indobert Variations, Training Size, And Self-Supervised Model Training, Connor F. Shaw
Theses and Dissertations
There is strong motivation in both civilian and military circles to understand the attitudes, motivations, feelings, and emotions of a population of interest. Social media is a rich source of self-disclosed information by individuals from all walks of life about virtually every domain of the human experience, but the vast quantity of data is impossible to effectively analyze without advanced natural language processing algorithms. This research creates a transfer learning based emotion classification model for Indonesian language Twitter data. Transfer learning consists of two steps: pre-training and fine tuning. Three variations of Indonesian Bidirectional Encoder Representations from Transformers (IndoBERT) are …
Screening Heuristics For The Evaluation Of Covert Network Node Insertion Scenarios, Andrew E. Pekarek
Screening Heuristics For The Evaluation Of Covert Network Node Insertion Scenarios, Andrew E. Pekarek
Theses and Dissertations
The majority of research on covert networks uses social network analysis (SNA) to determine critical members of the network to either kill or capture for the purpose of network destabilization. This thesis takes the opposite approach and evaluates potential scenarios for inserting an agent into a covert network for information gathering purposes or future disruption operations. Due to the substantial number of potential insertion scenarios in a large network, this research proposes three screening heuristics that leverage SNA measures to reduce the solution space before applying a simple search heuristic.
Social Network Threat Detection, Nathanael R. Beveridge
Social Network Threat Detection, Nathanael R. Beveridge
Theses and Dissertations
Various government agencies have a stake in knowing when bad actors cross the United States' borders, or how bad actors may be involved in the ow of people across borders. Interviews conducted at border checkpoints with individuals who intend to cross the border can contain valuable information. The quantity of interviews is such that intelligence analysts could benefit greatly from an automation system that extracts the information they are looking for from within the interviews. This would allow them to focus more of their time on analyzing what is extracted as opposed to inspecting all interviews themselves. The information extracted …
Text Analysis Of Air Force References In Twitter, Seth A. Kline
Text Analysis Of Air Force References In Twitter, Seth A. Kline
Theses and Dissertations
Social media has grown to become a rich source for opinions, authored by individuals who volunteer them, unedited and in real-time. Armed with this information, an organization like the Air Force can understand the perceptions of consumers and learn to better serve the American taxpayer. To accomplish this goal, this research takes a qualitative approach, utilizing social media analytics in combination with various Text Mining methodologies (word frequency, word relationships, sentiment analysis, topic modeling) to provide insight on Air Force related content shared on Twitter. To provide a well-rounded analysis of the overall perception of the Air Force enterprise, the …
A Statistical Approach To Characterize And Detect Degradation Within The Barabasi-Albert Network, Mohd-Fairul Mohd-Zaid
A Statistical Approach To Characterize And Detect Degradation Within The Barabasi-Albert Network, Mohd-Fairul Mohd-Zaid
Theses and Dissertations
Social Network Analysis (SNA) is widely used by the intelligence community when analyzing the relationships between individuals within groups of interest. Hence, any tools that can be quantitatively shown to help improve the analyses are advantageous for the intelligence community. To date, there have been no methods developed to characterize a real world network as a Barabasi-Albert network which is a type of network with properties contained in many real-world networks. In this research, two newly developed statistical tests using the degree distribution and the L-moments of the degree distribution are proposed with application to classifying networks and detecting degradation …
A Risk Based Approach To Node Insertion Within Social Networks, Chancellor A. J. Johnstone
A Risk Based Approach To Node Insertion Within Social Networks, Chancellor A. J. Johnstone
Theses and Dissertations
Social Network Analysis (SNA) is a primary tool for counter-terrorism operations, ranging from resiliency and influence to interdiction on threats stemming from illicit overt and clandestine network operations. In an ideal world, SNA would provide a perfect course of action to eliminate dangerous situations that terrorist organizations bring. Unfortunately, the covert nature of terrorist networks makes the effects of these techniques unknown and possibly detrimental. To avoid potentially harmful changes to enemy networks, tactical involvement must evolve, beginning with the intelligent use of network in filtration through the application of the node insertion problem. The framework for the node insertion …
The Positive Impact Of Negative Feedback, Mark B. Richey
The Positive Impact Of Negative Feedback, Mark B. Richey
Theses and Dissertations
While feedback is an essential element of performance, there is little theory explaining the effects of negative feedback. Disagreement exists as to whether negative feedback is good or bad and this impacts its use. Fortunately, control theory provides scholars with an opportunity to better understand negative feedback and the conditions necessary to support its intended function. This study examined the relationship between negative feedback and task performance in a leadership development environment. This work asserts that performance is contingent on perceived feedback usefulness, such that the relationship is stronger when feedback usefulness is high and weaker when it is low. …
An Analysis Of The Elements Of Collaboration Associated With Top Collaborative Tools, Kristopher C. Nagy
An Analysis Of The Elements Of Collaboration Associated With Top Collaborative Tools, Kristopher C. Nagy
Theses and Dissertations
United States government agencies have historically experienced problems with inter-agency information sharing and collaboration. In fact, the National Commission on Terrorist Attacks upon the United Stated recommended that the U.S. government “increase information sharing” and “improve collaboration across government agencies.” To this day, no collaborative tools are being used to fully address that recommendation. In fact, there is little agreement as to what collaboration necessarily means and what characteristics or capabilities are best suited for the design and use of collaborative tools. Before we can improve collaboration across agencies, we need to better understand the nature of collaboration itself, and …
The Emergence Of A Content Acceptance Model (Cam): New Thoughts Regarding The Trial, Adoption, And Usage Of New Media, Ryan G. Walinski
The Emergence Of A Content Acceptance Model (Cam): New Thoughts Regarding The Trial, Adoption, And Usage Of New Media, Ryan G. Walinski
Theses and Dissertations
New Media is defined not by the technology that it is based on but rather on individual level attributes that contribute to the development of new artifacts, practices and social arrangements. However, existing technology adoption models tend to stress technology and organizational level attributes over such individual level characteristics. This suggests that new models are required in order to fully capture how the New Media adoption process works. We are moving away from organizational and technology adoption focus and towards an individual and content adoption focus. A review of existing technology acceptance models reveals that the content provided by these …
Characterizing And Detecting Unrevealed Elements Of Network Systems, James A. Leinart
Characterizing And Detecting Unrevealed Elements Of Network Systems, James A. Leinart
Theses and Dissertations
This dissertation addresses the problem of discovering and characterizing unknown elements in network systems. Klir (1985) provides a general definition of a system as “... a set of some things and a relation among the things" (p. 4). A system, where the `things', i.e. nodes, are related through links is a network system (Klir, 1985). The nodes can represent a range of entities such as machines or people (Pearl, 2001; Wasserman & Faust, 1994). Likewise, links can represent abstract relationships such as causal influence or more visible ties such as roads (Pearl, 1988, pp. 50-51; Wasserman & Faust, 1994; Winston, …
The Social Influence Qualities Of Social Network Sites: A Qualitative And Experimental Investigation, J. Paul Conner
The Social Influence Qualities Of Social Network Sites: A Qualitative And Experimental Investigation, J. Paul Conner
Theses and Dissertations
While social network sites (SNS) are a popular form of new media, the literature has not investigated the social influence of these internet sites. Using a mixed method approach of qualitative interviews and a laboratory experiment, this study tests a process model predicting the effects of communication processes and technology on social influence. This model suggested that SNSs may be more effective at social influence than face-to-face communication. A qualitative study was performed to determine whether the hypotheses were plausible whereby it was suggested that SNSs may influence other individuals and SNSs might be a more effective at influencing individuals …
An Exploratory Examination Of Social Website Quality, Joseph B. Werling
An Exploratory Examination Of Social Website Quality, Joseph B. Werling
Theses and Dissertations
With websites becoming the frontend for numerous systems, the system's benefits require customers to have a favorable evaluation of the site and an intention to re-use it. It must be considered to be of high quality. With websites increasing adding collaborative technologies (such as tools for social networking, forums, and blogging) a new instrument to evaluate the quality of these types of sites is needed. Before such an instrument is developed, an understanding of the applicable theories is needed. This study offers that background. First the potential benefits of this research and its guiding questions are presented. Next is a …
An Empirical Investigation Of Factors Influencing Knowledge Management System Success, John F. Whitfield Jr.
An Empirical Investigation Of Factors Influencing Knowledge Management System Success, John F. Whitfield Jr.
Theses and Dissertations
Knowledge has been viewed as a critical component for organizations. Consequently, organizations implement Knowledge Management Systems (KMSs) to seek competitive advantages, but they may encounter mixed results. This research draws on previous information system and knowledge management system success-related literature and selects eight factors that are believed to be critical for the successful implementation of a KMS. These factors were derived through a literature search of current KMS success-related literature. The purpose of this study is to identify factors that could have a clear influence on the development and implementation of KMSs. The study presents the empirical examination of a …
High Performing Teams: The Moderating Effects Of Communication Channels, Edgard I. Zamora
High Performing Teams: The Moderating Effects Of Communication Channels, Edgard I. Zamora
Theses and Dissertations
The purpose of this study is to support the Air Force's goal of improving team performance by bringing visibility to several overlapping areas of study where little comprehensive research has been conducted. Specifically, an officer's ability to successfully complete his or her mission has been complicated in recent years by the emergence of new communication technologies. For example, communication networks now make it possible for pilots to fly Unmanned Arial Vehicles (UAVs) who sit on one continent while the aircraft and mission planners are on another and, although they may not see each other, their physical separation does not negate …
Analysis Of Layered Social Networks, Jonathan T. Hamill
Analysis Of Layered Social Networks, Jonathan T. Hamill
Theses and Dissertations
Prevention of near-term terrorist attacks requires an understanding of current terrorist organizations to include their composition, the actors involved, and how they operate to achieve their objectives. To aid this understanding, operations research, sociological, and behavioral theory relevant to the study of social networks are applied, thereby providing theoretical foundations for new methodologies to analyze non-cooperative organizations, defined as those trying to hide their structure or are unwilling to provide information regarding their operations. Techniques applying information regarding multiple dimensions of interpersonal relationships, inferring from them the strengths of interpersonal ties, are explored. A layered network construct is offered that …
The Effects Of Ability Homophily On Individual Performance, Michael J. Gray
The Effects Of Ability Homophily On Individual Performance, Michael J. Gray
Theses and Dissertations
Homophily is the sociological term for a principle that is easily observed and understood: similar people tend to associate with one another (or the well-known saying "Birds of a feather flock together"). Homophily creates divides among people with numerous demographic characteristics and causes people to surround themselves with others who are similar to themselves (McPherson et al., 2001). Race and ethnicity have the greatest influence on relationship choices followed by age, religion, education, occupation, and gender (McPherson et al., 2001). While studies of homophily of race and gender are quite common, few studies have examined homophily based on instrumental attributes …
The Longitudinal Effect Of Self-Monitoring And Locus Of Control On Social Network Position In Friendship Networks, Gary J. Moore
The Longitudinal Effect Of Self-Monitoring And Locus Of Control On Social Network Position In Friendship Networks, Gary J. Moore
Theses and Dissertations
The purpose of this research was to identify how enduring personality characteristics predict a person's location in a network, locations which in turn affect outcomes such as performance. Specifically, this thesis examines how self-monitoring and locus of control influence an individual's location in a friendship social network over time. Hierarchical Linear Modeling (HLM) was used to analyze 28 groups of students and instructors at a military training course over six and one half weeks. Self-monitoring predicted betweenness centrality in five of six time periods while locus of control predicted betweenness centrality in three of six time periods. The moderation of …
Leadership In Groups: Social Networks And Perceptions Of Formal And Informal Leaders, Mitchell D. Stratton
Leadership In Groups: Social Networks And Perceptions Of Formal And Informal Leaders, Mitchell D. Stratton
Theses and Dissertations
The labors of organizational and behavioral science researchers have resulted in a literature robust in the study of leadership and social networks. Empirical examination of both topics has shown significant organizational outcomes, but breadth is lacking both within and between the disciplines. Studies of leadership have seen the preponderance of the effort focused on formal leaders, while most social network studies examine only one informal structure. Moreover, there exists a paucity of studies, which have sought to examine the interrelationships between leadership and social networks. In an effort to address these voids, this thesis investigated: 1) The concurrent existence of …
A Graph Theoretic Analysis Of The Effects Of Organizational Structure On Employee Social Networks, John R. Hutzel
A Graph Theoretic Analysis Of The Effects Of Organizational Structure On Employee Social Networks, John R. Hutzel
Theses and Dissertations
A simulation technique was used to investigate the impacts of organizational structure on an organization's social network. By simulating personnel in an organization as vertices in a graph and the aging of the corporation as the aging of the same graph, the maturation of an organization was realized. The characteristic path length of the graph was measured after each year returning an optimistic average organizational distance. Results include the finding that, per this model, an organization's characteristic path length can drop over 50% in a 20 year period with consideration of edges of all strengths. Next a series of random …
Formal And Informal Work Group Relationships With Performance: A Moderation Model Using Social Network Analysis, Benjamin R. Knost
Formal And Informal Work Group Relationships With Performance: A Moderation Model Using Social Network Analysis, Benjamin R. Knost
Theses and Dissertations
Social networks have recently emerged in the management discipline as a unique way of studying individuals groups in organizations. While traditionally used in the analysis of un-bounded networks, applying social network analysis techniques to bounded work groups and organizational teams has become increasingly popular. Past research has established relationships between in-degree social network centrality and individual performance as well as social network density and overall group performance. This field study, conducted at a military training course, attempted to further refine this social network-performance relationship by modeling characteristics of both the formal and informal work group networks in relation to performance …
Gauging The Commitment Of Clandestine Group Members, Doneda D. Downs
Gauging The Commitment Of Clandestine Group Members, Doneda D. Downs
Theses and Dissertations
Since the attacks of September 11th, 2001, there has been a great deal of attention given to understanding the inner workings of terrorist organizations in order for the United States to be successful in the Global War on Terrorism. Group dynamics has been one area of interest pursued to gain more insight into a terrorist's cognitive battlespace. Until a few years ago, most research on individual commitment and organizational cohesion has been based primarily on questionnaires and open observations on groups that desire to be understood. However, terrorist organizations are clandestine; they constantly employ operations security (OPSEC) to ensure protection …
Aggregation Techniques To Characterize Social Networks, Sara E. Sterling
Aggregation Techniques To Characterize Social Networks, Sara E. Sterling
Theses and Dissertations
Social network analysis focuses on modeling and understanding individuals of interest and their relationships. Aggregation of social networks can be used both to make analysis computationally easier on large networks, and to gain insight in subgroup interactions. Aggregation requires determining appropriate closely knit subgroups as well as choosing a measure or measures to represent the network data. This thesis provides the analyst with several techniques for using aggregation to analyze the characteristics of social networks. The contribution of this research lies in its ability to analyze a wide variety of social network structures and available data through two methods for …
A Study Of Information Exchange Between United States Air Force Bases And Their Surrounding Communities, Andrew C. Clewett
A Study Of Information Exchange Between United States Air Force Bases And Their Surrounding Communities, Andrew C. Clewett
Theses and Dissertations
Data, information, and knowledge are exchanged daily from United States Air Force (USAF) bases to surrounding communities. The purpose of this research is to aid managers and commanders in gaining a better understanding of their information flow and bettering their information management practices. The research specifically seeks answers to the questions of where information is exchanged, why information is exchanged, and to whom information is exchanged with.
Deception Detection In A Computer-Mediated Environment: Gender, Trust, And Training Issues, Monica A. Dziubinski
Deception Detection In A Computer-Mediated Environment: Gender, Trust, And Training Issues, Monica A. Dziubinski
Theses and Dissertations
The Department of Defense is increasingly relying on computer-mediated communications to conduct business. This reliance introduces an amplified vulnerability to strategic information manipulation, or deception. This research draws on communication and deception literature to develop a conceptual model proposing relationships between deception detection abilities in a computer-mediated environment, gender, trust, and training. An experiment was conducted with 119 communications personnel to test the proposed hypotheses. No relationship between gender or trust and deception detection accuracy was found. Partial support was found showing that training improves deception detection accuracy. The most significant finding was that individual’s deception detection abilities deteriorate in …
Training Effects On Judgment Accuracy In A Computer-Mediated Environment, Mark M. Lankowski
Training Effects On Judgment Accuracy In A Computer-Mediated Environment, Mark M. Lankowski
Theses and Dissertations
The United States Air Force (AF) has named Information Superiority the core competency "upon which all the other core competencies rely". In order to achieve Information Superiority, deceptive communication must be minimized. According to researchers, deception occurs when communicators control the information contained in their messages to convey a meaning that departs from the truth. This research draws on Biros, George, and Zmuds' (2002) deception research model to determine if training to detect deception will improve a person's deception detection performance in a computer-mediated environment. A longitudinal experiment was conducted with AF participants (N=119) where three separate training plans were …
A Combined Adaptive Tabu Search And Set Partitioning Approach For The Crew Scheduling Problem With An Air Tanker Crew Application, Todd E. Combs
A Combined Adaptive Tabu Search And Set Partitioning Approach For The Crew Scheduling Problem With An Air Tanker Crew Application, Todd E. Combs
Theses and Dissertations
This research develops the first metaheuristic approach to the complete air crew scheduling problem. It develops the first dynamic, integrated, set-partitioning based vocabulary scheme for metaheuristic search. Since no benchmark flight schedules exist for the tanker crew scheduling problem, this research defines and develops a Java™ based flight schedule generator. The robustness of the tabu search algorithms is judged by testing them using designed experiments. An integer program is developed to calculate lower bounds for the tanker crew scheduling problem objectives and to measure the overall quality of solutions produced by the developed algorithms.
Robustness Of Multiple Objective Decision Analysis Preference Functions, William K. Klimack
Robustness Of Multiple Objective Decision Analysis Preference Functions, William K. Klimack
Theses and Dissertations
This research investigated value and utility functions in multiobjective decision analysis to examine the relationship between them in a military decision making context. The impact of these differences was examined to improve implementation efficiency. The robustness of the decision model was examined with respect to the preference functions to reduce the time burden imposed on the decision maker. Data for decision making in a military context supports the distinction between value and utility functions. Relationships between value and utility functions and risk attitudes were found to be complex. Elicitation error was significantly smaller than the difference between value and utility …
Modeling And Analysis Of Social Networks, Robert S. Renfro Ii
Modeling And Analysis Of Social Networks, Robert S. Renfro Ii
Theses and Dissertations
This dissertation develops new methods for the modeling and analysis of social networks. Social networks describe the complex relationships of individuals and groups in multiple overlapping contexts. Influence in a social network impacts behavior and decision making in every setting in which individuals participate. This study defines a methodology for modeling and analyzing this complex behavior using a Flow-Model representation. Multiple objectives in an influencing effort targeted at a social network are modeled using Goal Programming. Value Focused Thinking is applied to model influence and predict decisions based on the reaction of the psychological state of individuals to environmental stimuli. …
Analysis Of Factors Influencing Tolerance Of Fraternization, George J. Matusak Iii
Analysis Of Factors Influencing Tolerance Of Fraternization, George J. Matusak Iii
Theses and Dissertations
This thesis explores several factors that might explain discrepancies in the tolerance level of fraternization among company grade officers within the Air Force. Factors that may influence implementation may include the nature of the relationship (platonic or sexual), the sex of the participants (same or different gender or gender of the senior person), whether the incident occurred between people in the same chain of command, and whether the survey respondent was ever stationed at a remote location. This research used a survey sent out to a population of company grade officers and comprising of scenarios that varied the combination of …
Factors Affecting Exchange Relationships Among Subordinates And Supervisors: A Study Of Military Officers, Laurie K. Richter
Factors Affecting Exchange Relationships Among Subordinates And Supervisors: A Study Of Military Officers, Laurie K. Richter
Theses and Dissertations
This research examined the effect of organizational structure on the relationships between subordinates and their supervisors using measures of leader-member exchange (LMX), mentoring effectiveness, perceived organizational support (POS), perceived opportunities for promotion, job satisfaction, affective commitment, and intent to remain. The sample obtained included 147 subordinate Air Force traditional Civil Engineer officers, Explosive Ordnance Disposal (EOD) officers, Bioenvironmental Engineer officers, and 27 squadron commanders at 19 Air Force bases. The methods of multiple analysis of variance and structural equation modeling were used to evaluate five research questions and nineteen hypotheses. Overall, no differences were found between the types of subordinate …