STV-based Video Feature Processing for Action Recognition

In comparison to still image-based processes, video features can provide rich and intuitive information about dynamic events occurred over a period of time, such as human actions, crowd behaviours, and other subject pattern changes. Although substantial progresses have been made in the last decade on image processing and seen its successful applications in face matching and object recognition, video-based event detection still remains one of the most difficult challenges in computer vision research due to its complex continuous or discrete input signals, arbitrary dynamic feature definitions, and the often ambiguous analytical methods. In this paper, a Spatio-Temporal Volume (STV) and region intersection (RI) based 3D shape-matching method has been proposed to facilitate the definition and recognition of human actions recorded in videos. The distinctive characteristics and the performance gain of the devised approach stemmed from a coefficient factor-boosted 3D region intersection and matching mechanism developed in this research. This paper also reported the investigation into techniques for efficient STV data filtering to reduce the amount of voxels (volumetric-pixels) that need to be processed in each operational cycle in the implemented system. The encouraging features and improvements on the operational performance registered in the experiments have been discussed at the end

A Winning Hand: A Proposal for an International Regulatory Schema with Respect to the Growing Online Gambling Dilemma in the United States

While a multitude of Internet enterprises folded in the 1990s, online gambling websites not only have held strong, but appear to be ready to increase the stakes. No business relating to the Internet currently generates more revenue than online gambling, and that trend does not look like it will change soon. While many Americans desire to participate in this form of cyber-gambling, the current legality of their ability to do so remains vague. For the most part, an American\u27s ability to gamble currently resides under the purview of state law and a hodgepodge of antiquated federal wire acts. The nature of the Internet, however, mandates that any scheme, regulatory or prohibitory, be constructed in the international arena. For various reasons, there have been efforts by members of Congress to create strong prohibitory legislation specifically targeting Internet gambling. The Author analyzes not only whether a domestic prohibition schema is the best model to implement, but also whether such a model could even be truly effective. The Author further shows that an international regulatory model can provide a legitimate method of control while allowing individual countries to maintain discretion over the form of online gambling they allow to their citizens. At the same time, this international regulatory schema would still provide a valid international enforcement net against offenders. Under this regulatory schema, problem gamblers can be protected while still preserving the opportunity for other patrons to get lucky and hit it big

Post Office and Retail Postal Facility Closures: Overview and Issues for Congress

[Excerpt] In common parlance, “post office” is used to refer to a wide variety of facilities operated by the United States Postal Service (USPS). In administrative practice, the USPS differentiates among several categories of postal facilities. Regarding one category of its facilities, the USPS announced in May 2009 that it was considering the closure of 3,105 of its 4,851 post office branches and stations. These facilities provide the public with postal services, such as stamp sales, post office boxes, and package shipping. Since the original announcement, the USPS has indicated that the number of possible closures may be more than 3,200. This report provides (1) information on this recent announcement; (2) historical data on the number of post offices and other retail postal facilities; (3) an explanation of the legal authorities relevant to retail postal facility closures; (4) a review of the retail postal facility closure processes, including data on public appeals of closures, and H.R. 658’s proposed alterations to the processes; and (5) a concluding discussion that suggests observations and possible issues for Congress. The USPS has cited financial duress as a reason for its proposed closure of up to 64% of its 4,851 post office branches and stations. According to the USPS, the post office branches and stations under consideration for closure are located in metropolitan areas. The USPS has not indicated whether any employees would lose their positions. Most postal employees are protected from layoffs by collective bargaining agreements. As of FY2008, the USPS had 36,065 retail postal facilities, including post offices, post office branches and stations, community post offices, and contract postal units. This is 16.3% fewer than existed in 1970 when the USPS was established as an independent establishment of the executive branch. The closure of 3,105 branches and stations would reduce the current number of retail postal facilities by 8.4%. By law, the USPS does not rely on appropriations to fund its operations. It must support itself through the sales of postal services. Congress has given the USPS considerable discretion to decide how many post offices to erect and where to place them. The USPS also is obliged to provide the public with adequate access to postal services. Both federal law and the USPS’s rules prescribe a post office closure process. The U.S. Postal Service must notify the affected public and hold a 60-day comment period prior to closing a post office. Should it decide to close a post office, the public has 30 days to appeal the decision to the Postal Regulatory Commission (PRC). Between FY1998 and FY2007, 25 of the approximately 676 post office closures were appealed to the PRC. The USPS uses an expedited version of this process to close post office branches, stations, and community post offices. On January 22, 2009, Representative Albio Sires introduced H.R. 658, which would require the USPS to employ the more lengthy post office closure process on all retail facility closures, and expand the current statutory public notification requirements. Federal law requires the USPS to arrange its delivery and service network to most efficiently serve the public. However, the proposed closures may raise a number of issues, including public participation in the closure process, the effects on postal workers, and the possible effects of closures on communities. Congress may wish to consider a variety of measures to address these possible issues. This report will be updated to reflect significant legislative action

An overview of recent research results and future research avenues using simulation studies in project management

This paper gives an overview of three simulation studies in dynamic project scheduling integrating baseline scheduling with risk analysis and project control. This integration is known in the literature as dynamic scheduling. An integrated project control method is presented using a project control simulation approach that combines the three topics into a single decision support system. The method makes use of Monte Carlo simulations and connects schedule risk analysis (SRA) with earned value management (EVM). A corrective action mechanism is added to the simulation model to measure the efficiency of two alternative project control methods. At the end of the paper, a summary of recent and state-of-the-art results is given, and directions for future research based on a new research study are presented

TMsim : an algorithmic tool for the parametric and worst-case simulation of systems with uncertainties

This paper presents a general purpose, algebraic tool—named TMsim—for the combined parametric and worst-case analysis of systems with bounded uncertain parameters.The tool is based on the theory of Taylor models and represents uncertain variables on a bounded domain in terms of a Taylor polynomial plus an interval remainder accounting for truncation and round-off errors.This representation is propagated from inputs to outputs by means of a suitable redefinition of the involved calculations, in both scalar and matrix form. The polynomial provides a parametric approximation of the variable, while the remainder gives a conservative bound of the associated error. The combination between the bound of the polynomial and the interval remainder provides an estimation of the overall (worst-case) bound of the variable. After a preliminary theoretical background, the tool (freely available online) is introduced step by step along with the necessary theoretical notions. As a validation, it is applied to illustrative examples as well as to real-life problems of relevance in electrical engineering applications, specifically a quarter-car model and a continuous time linear equalizer