Miracle-dz/UniFAR-FTUs huggingface dataset:
A new improvement of Apriori Algorithm for mining association rules

Among the many mining algorithms of association rules, Apriori Algorithm is a classical algorithm that has caused the most discussion; it can effectively carry out the mining association rules. However, based on Apriori Algorithm, most of the traditional algorithms existed “item sets generation bottleneck” problem, and are very time-consuming. An enhance algorithm associating which is based on the user interest and the importance of itemsets is put forward by the paper, incorporate item that user is interested in into the itemsets as a seed item, then scan the database, incorporate all other items which are in the same transaction into itemsets, Construct user interest itemsets, reduce unnecessary itemsets; through the design of the support functions algorithm not only considered the frequency of itemsets, but also consider different importance between different itemsets. The new algorithm reduces the storage space, improves the efficiency and accuracy of the algorithm.
Microfabricated Microbial Fuel Cell Arrays Reveal Electrochemically Active Microbes

Microbial fuel cells (MFCs) are remarkable “green energy” devices that exploit microbes to generate electricity from organic compounds. MFC devices currently being used and studied do not generate sufficient power to support widespread and cost-effective applications. Hence, research has focused on strategies to enhance the power output of the MFC devices, including exploring more electrochemically active microbes to expand the few already known electricigen families. However, most of the MFC devices are not compatible with high throughput screening for finding microbes with higher electricity generation capabilities. Here, we describe the development of a microfabricated MFC array, a compact and user-friendly platform for the identification and characterization of electrochemically active microbes. The MFC array consists of 24 integrated anode and cathode chambers, which function as 24 independent miniature MFCs and support direct and parallel comparisons of microbial electrochemical activities. The electricity generation profiles of spatially distinct MFC chambers on the array loaded with Shewanella oneidensis MR-1 differed by less than 8%. A screen of environmental microbes using the array identified an isolate that was related to Shewanella putrefaciens IR-1 and Shewanella sp. MR-7, and displayed 2.3-fold higher power output than the S. oneidensis MR-1 reference strain. Therefore, the utility of the MFC array was demonstrated.
An Experience-Based Approach to Mobile Push-Manipulation

We present an experience-based pushmanipulation method, where the mobile robot learns through experimentation how the pushable real world objects with complex 3D structures move in response to various pushing actions. These experimentally acquired models are then used as building blocks for constructing achievable push plans via a Rapidly-exploring Random Trees variant planning algorithm we contribute. We test our method in a realistic 3D simulation environment and demonstrate safe and successful transportation and placement of a variety of passively mobile pushable objects.
Cyclooxygenase 2 is a key enzyme for inflammatory cytokine‐induced angiogenesis

Cyclooxygenasel (COX1) and COX2 mediate the rate‐limiting step in arachidonic acid me¬tabolism. Expression of COX2 mRNA and protein is often enhanced in various human cell types by inflam¬matory cytokines such as interleukin‐1β (IL‐1β) and tumor necrosis factor α (TNFα). IL‐1β enhanced ex¬pression of various prostanoids and this expression was blocked by COX2 selective inhibitors. IL‐1β markedly induced angiogenesis in vitro and in vivo, which was significantly inhibited by COX2 selective inhibitors but not by a vascular endothelial growth factor (VEGF) receptor tyrosine kinase inhibitor. In contrast, COX2 selective inhibitors only partially blocked VEGF‐induced angiogenesis. EP2, EP4 (prostaglandin E2 recep¬tors) agonists and thromboxane A2 (TXA2) receptor agonists induced angiogenesis in vitro and in vivo; IL‐1β‐induced angiogenesis was blocked by an EP4 antagonist and a TXA2 receptor antagonist. IL‐1β in¬duced much less angiogenesis in cornea of COX2 knockout mice than that of wild‐type mice. This is the first report that COX2 and some prostanoids play a key role in IL‐1β‐induced angiogenesis. —Kuwano, T. , Nakao, S. , Yamamoto, H. , Tsuneyoshi, M. , Yamamoto, T. , Kuwano, M. , Ono, M. Cyclooxygenase 2 is a keyenzyme for inflammatory cytokine‐induced angiogenesis. FASEB J. 18, 300–310 (2004)
Another Look at Portfolio Optimization under Tracking-Error Constraints

Research has shown that adding constraints to total portfolio volatility can substantially improve the performance of managed portfolios. Although other work has considered constant tracking-error volatility frontiers, in this study tracking error was allowed to vary but the risk aversion was fixed. The resulting optimal portfolios have several desirable properties. Today, the use of benchmark portfolios to evaluate the relative performance of portfolio managers is common practice in the financial management industry. This setup allows the investor to evaluate the added value in line with the risks taken. The relevant concept of risk is the relative risk as defined by the tracking-error volatility (TEV). The problem of minimizing the volatility of tracking error was originally solved in 1992. The optimal portfolios obtained had several undesirable properties, however, and introducing an additional constraint on the beta of the portfolio was suggested. In 2003, the problem was again tackled, this time in a study that pointed out that constant-TEV portfolios are described by an ellipse. Because of the flat shape of this ellipse, adding a constraint on total portfolio volatility can substantially improve the performance of the managed portfolio. This article looks at the problem from another angle. Instead of considering constant-TEV frontiers, the author allowed tracking error to vary but fixed the risk aversion. He found that the resulting optimal portfolios have several desirable properties.
Data Mining, Interactive Semantic Structuring, and Collaboration: A Diversity-aware Method for Sense-making in Search

We present the Damilicious method and tool which help users in sense-making of the results of their literature searches on the Web: on an individual level, by supporting the construction of semantics of the domain described by their search term, and on the collective level, by encouraging users to explore and selectively re-use other users’ semantics. We use a combination of clustering, classification and interactivity to obtain and apply diverse semantics of thematic areas, and to identify diversity between users. This tool can help users take different perspectives on search results and thereby reflect more deeply about resources on the Web and their meaning. In addition, the method can help to develop quantitative measures of diversity; we propose diversity of resource groupings and diversity of users as two examples.
Fluxes, moduli fixing and MSSM-like vacua in a simple IIA orientifold

We study the effects of adding RR, NS and metric fluxes on a T^6/(\Omega (-1)^{F_L} I_3) Type IIA orientifold. By using the effective flux-induced superpotential we obtain Minkowski or AdS vacua with broken or unbroken supersymmetry. In the Minkowski case some combinations of real moduli remain undetermined, whereas all can be stabilized in the AdS solutions. Many flux parameters are available which are unconstrained by RR tadpole cancellation conditions allowing to locate the minima at large volume and small dilaton. We also find that in AdS supersymmetric vacua with metric fluxes, the overall flux contribution to RR tadpoles can vanish or have opposite sign to that of D6-branes, allowing for new model-building possibilities. In particular, we construct the first N=1 supersymmetric intersecting D6-brane models with MSSM-like spectrum and with all closed string moduli stabilized. Some axion-like fields remain undetermined but they are precisely required to give St\"uckelberg masses to (potentially anomalous) U(1) brane fields. We show that the cancellation of the Freed-Witten anomaly guarantees that the axions with flux-induced masses are orthogonal to those giving masses to the U(1)'s. Cancellation of such anomalies also guarantees that the D6-branes in our N=1 supersymmetric AdS vacua are calibrated so that they are forced to preserve one unbroken supersymmetry.
Flexible Snooping: Adaptive Forwarding and Filtering of Snoops in Embedded-Ring Multiprocessors

A simple and low-cost approach to supporting snoopy cache coherence is to logically embed a unidirectional ring in the network of a multiprocessor, and use it to transfer snoop messages. Other messages can use any link in the network. While this scheme works for any network topology, a naive implementation may result in long response times or in many snoop messages and snoop operations. To address this problem, this paper proposes flexible snooping algorithms, a family of adaptive forwarding and filtering snooping algorithms. In these algorithms, a node receiving a snoop request may either forward it to another node and then perform the snoop, or snoop and then forward it, or simply forward it without snooping. The resulting design space offers trade-offs in number of snoop operations and messages, response time, and energy consumption. Our analysis using SPLASH-2, SPECjbb, and SPECweb workloads finds several snooping algorithms that are more cost-effective than current ones. Specifically, our choice for a high-performance snooping algorithm is faster than the currently fastest algorithm while consuming 9-17% less energy; our choice for an energy-efficient algorithm is only 3-6% slower than the previous one while consuming 36-42% less energy
Towards the Derandomization of the PPSZ algorithm for the Multiple Satisfying Assignments Case

The PPSZ algorithm [11] is currently the fastest algorithm for k-SAT [5]. It has been derandomized in 2005 by Rolf [13] for the case where the formula is guaranteed to have a single satisfying assignment. In this thesis, we explore a derandomization plan for the general case, and the associated questions. We start by reviewing previous work on derandomization of the PPZ [12] and PPSZ algorithms [13]. We then prove a general result on the PPSZ algorithm that may make subsequent analyses easier. We next present our work on the derandomization itself: our final goal would be to reduce as much as possible the number of random bits used in the PPSZ algorithm. We consider the random bits induced by choosing a random permutation: we want to find a small set of permutations sach that PPSZ still returns a satisfying assignment with a good enough probability. This would allow us to enumerate this set in a derandomization. We have not been able to find such a small set of permutations yet, but we have gained some insight on the reason why this problem resisted our attempts so far, namely that it is difficult to control the correlations between variables when not considering the whole set of permutations. Finally, we consider the question of what happens if we replace the random bits that are used for non-frozen variables by some construction, for instance if we consider them set by an external oracle. We have proven that the success probability of PPZ was not adversely affected by setting the non-frozen variables to 0. Whether it is also the case for PPSZ is still not known; whether it is possible to construct an oracle in reasonable time is not known either. We conclude this thesis by enumerating a number of issues and questions that are still open.
COMPARISON BETWEEN SUBSONIC FLOW SIMULATION AND PHYSICAL MEASUREMENTS OF FLUE PIPES

Direct simulations of wind musical instruments using the compressible Navier Stokes equations have recently become possible through the use of parallel computing and through developments in numerical methods. As a first demonstration, the flow of air and the generation of musical tones inside a soprano recorder are simulated numerically. In addition, physical measurements are made of the acoustic signal generated by the recorder at different blowing speeds. The comparison between simulated and physically measured behavior is encouraging and points towards ways of improving the simulations.
Longitudinal associations among routine disclosure, the parent–child relationship, and adolescents’ prosocial and delinquent behaviors

The purpose of this study was to explore whether routine child disclosure to parents was longitudinally related to adolescent prosocial and delinquent outcomes via the parent–child relationship (parental knowledge, parental autonomy granting, and parental warmth/support). The participants included 463 adolescents (48% male, 73% European American, 37% single parent families) and their mothers and fathers who completed questionnaires across three waves from early to late adolescence (M age of adolescent at Time 1 = 13 years old, Time 3 = 17 years old). The results showed that routine child disclosure was longitudinally associated with prosocial behavior toward family via greater parental warmth. Child disclosure was negatively related to delinquency via parental knowledge. Implications regarding the role of child disclosure on the parent–child relationship and the development of adolescent behavior are discussed.
Development of an autonomous tomato harvesting robot with rotational plucking gripper

In this paper, we present a design and development an autonomous tomato harvesting robot. We developed a harvesting robot with stereo camera which can measure depth in short range and direct sunlight and plucking gripper using the infinity rotational joint. We also evaluate the developed robot through harvesting in the tomato robot competition and the real farm. In the tomato robot competition, the robot harvested tometoes from tomato clusters and tomato trees, harvesting speed was about 80[s/fruit] and successful rate was about 60%. In the real farm we evaluated the robot with tomato trees in semi-outdoor environment to show the effectiveness and robustness under direct sunlight. According to the result of harvesting with real tomatoes, we improved the robot motion and finally harvesting speed was up to 23[s/fruit], however the gripper may grasp multiple fruits in case of very cluttered cluster and the calyx also may be broken when the stem angle is deep from the rotation axis. To avoid this situation, a grasp state estimation of the gripper and simultaneous recognition fruit and stem positions are next problems to improve the harvesting successful rate.
Automatic creation of an autonomous agent: genetic evolution of a neural-network driven robot

The paper describes the results of the evolutionary development of a real, neural-network driven mobile robot. The evolutionary approach to the development of neural controllers for autonomous agents has been successfully used by many researchers, but most - if not all - studies have been carried out with computer simulations. Instead, in this research the whole evolutionary process takes places entirely on a real robot without human intervention. Although the experiments described here tackle a simple task of navigation and obstacle avoidance, we show a number of emergent phenomena that are characteristic of autonomous agents. The neural controllers of the evolved best individuals display a full exploitation of non-linear and recurrent connections that make them more efficient than analogous man-designed agents. In order to fully understand and describe the robot behavior, we have also employed quantitative ethological tools [13], and showed that the adaptation dynamics conform to predictions made for animals.
Groupware Developers Need More Than Replicated Objects

This position paper addresses the question whether existing frameworks for single user application development can generally be used on top of a n OOGP as they are. The paper negates this questio n by using the example of synchronous document-based groupware (SDBG). Some SDBG-specific requirements for a groupware platform architecture are postulated and it is shown how these requirements conflict with the usage of a typical framework for the development o f single user interfaces. The requirements concern the kind of replication technique needed for SDBG to ensure both easy development and efficiency at run-time . The conflict with traditional user interface frameworks is identified to be the problem of update upon change of replicated
A compact tactile display suitable for integration in VR and teleoperation

Haptic feedback should integrate kinaesthetic and tactile feedback. However current haptic displays do not satisfy the stringent performance and design requirements for integration in teleoperation and VR. This work presents the development of a compact, high performance tactile display for the fingertip. The compact design, high performance, reliability, and simple connectivity of this display make it suitable for immediate integration in current VR and master-slave haptic systems. In terms of performance this display achieves an excellent combination of force, amplitude and spatiotemporal resolution at the tactors, surpassing the performance of devices of a similar footprint. Its operation is based on the display of surface shape to an area of the fingertip through a 4×4 array of vertically moving tactors. The tactors are spring loaded and are actuated remotely by dc motors through a flexible tendon transmission. This work presents the overall design, control and performance of the device. A preliminary analysis of the transmission system is presented and is used to compensate for output errors induced by component elasticity.
Exchange rate policies

Modern macroeconomic theory teaches us new lessons about exchange rates: Currency depreciations or appreciations that change the relative competitiveness of producers in different countries are undesirable from a global perspective if they lead to relative prices that do not reflect the true relative costs of production. From this standpoint, "external balance" does not mean that trade balances should be zero, but rather that global resources are allocated efficiently. The implications of this insight for the role of the exchange rate in monetary policy are explored here. Some of the traditional arguments for purely floating exchange rates are challenged by this approach. The paper also briefly considers sterilized intervention and comments on the role of international reserves.
Discovering and Merging Keyword Senses using Ontology Matching

During the last years we are witnessing how the use of keywords has become the standard input when searching the Web. As opposite to the syntactic searches performed by traditional web search engines, the current research challenge is a semantics-guided information retrieval. The increasing pools of ontologies available on the Web can help to discover the semantics of user keywords and this information is priceless for many tasks, including new semantic search engines. In this paper we propose a system that takes as input a list of keywords provided by the user and discovers their possible meanings by consulting the knowledge represented by many (heterogeneous and distributed) ontologies. These keyword senses are semantically enriched with the synonym terms found during the ontology matching process: A synonymy measure based on statistics techniques and ontological similarity is used to integrate senses that are similar enough.
Automatic Evaluation of Computer Generated Text: A Progress Report on the TextEval Project

We present results of experiments designed to assess the usefulness of a new technique for the evaluation of translation quality, comparing human rankings with automatic measures. The basis of our approach is the use of a standard set and the adoption of a statistical view of translation quality. This approach has the ability to provide evaluations which avoid dependence on any particular theory of translation, which are therefore potentially more objective than previous techniques. The work presented here was supported by the Science and Engineering and the Social and Economic Research Councils of Great Britain, and would not have been possible without the gracious assistance of Ian Mason of Heriot Watt University, Edinburgh.
A Multi-Center Assessment of Nutrient Levels and Foods Provided by Hospital Patient Menus

Diets of high nutritional quality can aid in the prevention and management of malnutrition in hospitalized patients. This study evaluated the nutritional quality of hospital patient menus. At three large acute care hospitals in Ontario, Canada, 84 standard menus were evaluated, which included regular and carbohydrate-controlled diets and 3000 mg and 2000 mg sodium diets. Mean levels of calories, macronutrients and vitamins and minerals provided were calculated. Comparisons were made with the Dietary Reference Intakes (DRI) and Canada’s Food Guide (CFG) recommendations. Calorie levels ranged from 1281 to 3007 kcal, with 45% of menus below 1600 kcal. Protein ranged from 49 to 159 g (0.9–1.1 g/kg/day). Energy and protein levels were highest in carbohydrate-controlled menus. All regular and carbohydrate-controlled menus provided macronutrients within the Acceptable Macronutrient Distribution Ranges. The proportion of regular diet menus meeting the DRIs: 0% for fiber; 7% for calcium; 57% for vitamin C; and 100% for iron. Compared to CFG recommended servings, 35% met vegetables and fruit and milk and alternatives, 11% met grain products and 8% met meat and alternatives. These data support the need for frequent monitoring and evaluation of menus, food procurement and menu planning policies and for sufficient resources to ensure menu quality.
Provable password-based tripartite key agreement protocol

A password-based tripartite key agreement protocol is presented in this paper. The three entities involved in this protocol can negotiate a common session key via a shared password over insecure networks. Proofs are given to show that the proposed protocol is secure against forging and chosen message attacks in the case of without actually running a dictionary attack.
Fetal and childhood development of the intrapulmonary veins in man—branching pattern and structure

The drainage pattern and the structure of the pulmonary veins have been described quantitatively in a series of fetal and child lungs after injection of the veins with a radio-opaque medium. The drainage pattern of the pre-acinar region is complete by half-way through gestation and corresponds with the growth of the pulmonary arteries. There is new growth of veins within the acinus during childhood. Four types of veins arising from five peripheral sites have been described. The change in dimensions with age have also been measured. A measurable muscle layer could not be found in the walls of the veins before birth though some muscle cells were present from 28 weeks of gestation. The thickness of the muscle coat in any vein was similar at birth and in a 3- and 10-year-old child and in all cases was less than in a pulmonary artery of the same size. The muscle cells were of smaller diameter in the veins than in the arteries. Along any venous pathway between a non-muscular and muscular structure was a region where part of the wall was muscular: these veins were termed partially muscular. Their distribution by size was similar at all ages.