Miracle-dz/UniFAR-FTUs huggingface dataset:
T-Watcher: A New Visual Analytic System for Effective Traffic Surveillance

Nowadays, big cities are suffering from severe traffic congestion as a result of the continuing increase in vehicles. Taxis equipped with GPS can be viewed as sensors of the traffic situation in city. However, trajectory data generated by taxi's GPS traces are often high-dimensional and contain large spatial and temporal attributes, which pose challenges for analysts. In this paper, based on taxi trajectory data, we present an interactive visual analytics system, T-Watcher, for monitoring and analyzing complex traffic situations in big cities. Users are able to use a carefully designed interface to monitor and inspect data interactively from three levels (region, road and vehicle views). We develop a visualization method to monitor and analyze traffic patterns for abnormal behaviors detection. In the region view of our system, global temporal changes in spatial evolution will be presented to users and can be interactively explored. The road view shows temporal changes to the traffic situations of significant segments of roads. The vehicle view uses a novel visualization method to track individual vehicles. Furthermore, the three views integrate important statistical and historical information related to traffic, which illustrate temporal changes of the traffic. We find that this design can help users explore historical information while monitoring traffic. We test our system on a real-life vehicle dataset collected from thousands of taxis and obtained some interesting findings. The experimental results confirm the effectiveness and efficiency of the proposed visual detection method. The analysis of the results also shows that our system is capable of effectively monitoring traffic and detecting abnormal traffic patterns.
Complementing genomics and transcriptomics: Phosphoproteomics illuminates systems biology in prostate cancer

ABSTRACT Integration of phosphoproteomics with traditional genomics and transcriptomics provides a more comprehensive overview of the signaling networks in advanced prostate cancer for immediate preclinical and future clinical use. Our recent publication introduces computational approaches for integrating the phosphoproteome, specifically with the intent of identifying important kinase signaling networks in advanced-stage prostate cancer.
An optimized Schwarz method with two‐sided Robin transmission conditions for the Helmholtz equation

Optimized Schwarz methods are working like classical Schwarz methods, but they are exchanging physically more valuable information between subdomains and hence have better convergence behaviour. The new transmission conditions include also derivative information, not just function values, and optimized Schwarz methods can be used without overlap. In this paper, we present a new optimized Schwarz method without overlap in the 2d case, which uses a different Robin condition for neighbouring subdomains at their common interface, and which we call two‐sided Robin condition. We optimize the parameters in the Robin conditions and show that for a fixed frequency an asymptotic convergence factor of 1 – O(h1/4) in the mesh parameter h can be achieved. If the frequency is related to the mesh parameter h, h = O(1/ωγ) for γ⩾1, then the optimized asymptotic convergence factor is 1 – O(ω(1–2γ)/8). We illustrate our analysis with 2d numerical experiments. Copyright © 2007 John Wiley & Sons, Ltd.
Skeletal muscle oxidative capacity in amyotrophic lateral sclerosis

Introduction: Mitochondrial dysfunction in the motor neuron has been suspected in amyotrophic lateral sclerosis (ALS). If mitochondrial abnormalities are also found in skeletal muscle, assessing skeletal muscle could serve as an important biomarker of disease progression. Methods: Using 31P magnetic resonance (31P‐MRS) and near infrared (NIRS) spectroscopy, we compared the absolute values and reproducibility of skeletal muscle oxidative capacity in people with ALS (n = 6) and healthy adults (young, n = 7 and age‐matched, n = 4). Results: ALS patients had slower time constants for phosphocreatine (PCr) and muscle oxygen consumption (mVO2) compared with young, but not age‐matched controls. The coefficient of variation for the time constant was 10% (SD = 2.8%) and 17% (SD = 6.2%) for PCr and mVO2, respectively. Conclusions: People with ALS had, on average, a small but not statistically significant, impairment in skeletal muscle mitochondrial function measured by both 31P‐MRS and NIRS. Both methods demonstrated good reproducibility. Muscle Nerve 50: 767–774, 2014
Agent-based Social Networks for Enterprise Collaboration

This paper discusses the relationship between agent technology and the recent wave of online social networks in the scope of the notable scenario of enterprise collaboration. In the brief introduction on the topic, we provide a coherent view of online social networks and social network systems. Then, we emphasize some features that can be considered as notable flaws that make everyday social networks and systems unusable to facilitate enterprise collaboration. Finally, we show how agent technology can address some of the mentioned flaws. The paper terminates with some concluding remarks and with an outline of future research directions.
Structural damage identification using damping: a compendium of uses and features

The vibration responses of structures under controlled or ambient excitation can be used to detect structural damage by correlating changes in structural dynamic properties extracted from responses with damage. Typical dynamic properties refer to modal parameters: natural frequencies, mode shapes, and damping. Among these parameters, natural frequencies and mode shapes have been investigated extensively for their use in damage characterization by associating damage with reduction in local stiffness of structures. In contrast, the use of damping as a dynamic property to represent structural damage has not been comprehensively elucidated, primarily due to the complexities of damping measurement and analysis. With advances in measurement technologies and analysis tools, the use of damping to identify damage is becoming a focus of increasing attention in the damage detection community. Recently, a number of studies have demonstrated that damping has greater sensitivity for characterizing damage than natural frequencies and mode shapes in various applications, but damping-based damage identification is still a research direction ‘in progress’ and is not yet well resolved. This situation calls for an overall survey of the state-of-the-art and the state-of-the-practice of using damping to detect structural damage. To this end, this study aims to provide a comprehensive survey of uses and features of applying damping in structural damage detection. First, we present various methods for damping estimation in different domains including the time domain, the frequency domain, and the time-frequency domain. Second, we investigate the features and applications of damping-based damage detection methods on the basis of two predominant infrastructure elements, reinforced concrete structures and fiber-reinforced composites. Third, we clarify the influential factors that can impair the capability of damping to characterize damage. Finally, we recommend future research directions for advancing damping-based damage detection. This work holds the promise of (a) helping researchers identify crucial components in damping-based damage detection theories, methods, and technologies, and (b) leading practitioners to better implement damping-based structural damage identification.
A Kalman filter approach to packet loss replacement in presence of additive noise

A major problem in real-time packet-based communication systems, is misrouted or delayed packet which results in degraded perceived voice quality. If packets are not available on time, the packets are considered lost. The easiest solution in a network terminal receiver is to replace silence for the duration of lost speech segments. In a high quality communication system, to avoid degradation in speech quality due to packet loss, a suitable method or algorithm is needed to replace the missing segments of speech. In this paper, we introduce an adaptive filter for replacement of lost speech segment. In this method Kalman filter as a state-space based method will be used to predict the clean speech signal in presence of additive noise. The evaluation results show that Kalman filter has lower MSE compared to other methods in presence of White Gaussian Noise and background noise.
Preparation and properties of plasticized starch/multiwalled carbon nanotubes composites

In this work we have studied the utilization of multiwalled carbon nanotubes (MWCNTs) as filler-reinforcement to improve the performance of plasticized starch (PS). The PS/MWCNTs nanocomposites were successfully prepared by a simple method of solution casting and evaporation. The morphology, thermal behavior, and mechanical properties of the films were investigated by means of scanning electron microscopy, wide-angle X-ray diffraction, differential scanning calorimetry, and tensile testing. The results indicated that the MWCNTs dispersed homogeneously in the PS matrix and formed strong hydrogen bonding with PS molecules. Compared with the pure PS, the tensile strength and Young's modulus of the nanocomposites were enhanced significantly from 2.85 to 4.73 MPa and from 20.74 to 39.18 MPa with an increase in MWCNTs content from 0 to 3.0 wt %, respectively. The value of elongation at break of the nanocomposites was higher than that of PS and reached a maximum value as the MWCNTs content was at 1.0 wt %. Besides the improvement of mechanical properties, the incorporation of MWCNTs into the PS matrix also led to a decrease of water sensitivity of the PS-based materials. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007
Improving Gnutella network performance using synthetic coordinates

In this paper, we examine the behavior of the Gnutella peer-to-peer file sharing network and propose a protocol modification to improve its performance. Gnutella exhibits sub-optimal performance in terms of message latency because its overlay topology does not match the underlying physical network. In order to characterize Gnutella's performance, we modified an existing Gnutella simulation framework developed for the ns-2 network simulator to gather information about query and query hit propagation. We then modified the simulated protocol to use the Vivaldi synthetic coordinate system and to bias neighbor selection to favor nodes that are "close" in the Euclidean sense. Simulations with the adapted Gnutella protocol showed an improvement in both query and query hit propagation times.
Performance of H.263 Video Transmission over Wireless Channels Using Hybrid ARQ

This paper proposes a hybrid ARQ error control scheme based on the concatenation of a Reed-Solomon (RS) code and a rate compatible punctured convolutional (RCPC) code for low-bit-rate video transmission over wireless channels. The concatenated hybrid ARQ scheme we propose combines the advantages of both type-I and type-II hybrid ARQ schemes. Certain error correction capability is provided in each (re)transmitted packet, and the information can be recovered from each transmission or retransmission alone if the errors are within the error correction capability (similar to type-I hybrid ARQ). The retransmitted packet contains redundancy bits which, when combined with the previous transmission, result in a more powerful RS/convolutional concatenated code to recover information if error correction fails for the individual transmissions (similar to type-II hybrid ARQ). Bit-error rate (BER) or signal-to-noise ratio (SNR) of a radio channel changes over time due to mobile movement and fading. The channel quality at any instant depends on the previous channel conditions. For the accurate analysis of the performance of the hybrid ARQ scheme, we use a multistate Markov chain (MSMC) to model the radio channel at the data packet level. We propose a method to partition the range of the received SNR into a set of states for constructing the model so that the difference between the error rate of the real radio channel and that of the MSMC model is minimized. Based on the model, we analyze the performance of the concatenated hybrid ARQ scheme. The results give valuable insight into the effects of the error protection capability in each packet, the mobile speed, and the number of retransmissions. Finally, the transmission of H.263 coded video over a wireless channel with error protection provided by the concatenated hybrid ARQ scheme is studied by means of simulations.
A highly linear SAW-less CMOS receiver using a mixer with embedded Tx filtering for CDMA

An embedded filtering passive receiver mixer is used to overcome transmitter power leakage without the use of a SAW filter. The receiver IC exhibits more than +60 dBm of Rx IIP2, 2.4 dB Rx NF, and +77 dB of Triple Beat (TB) with 45 MHz transmit leakage at 900 MHz Rx frequency while consuming only 18 mA from a 2.1 V supply.
Approximating a voronoi cell

Given a set (cid:0) of (cid:1) points in IR (cid:2) , called sites , we consider the problem of approximating the Voronoi cell of a site (cid:3) by a convex polyhedron with a small number of facets or, equivalently, of ﬁnding a small set of approximate Voronoi neighbors of (cid:3) . More precisely, we deﬁne an (cid:4) -approximate Voronoi neighborhood of (cid:3) , denoted (cid:5)(cid:7)(cid:6)(cid:9)(cid:8)(cid:11)(cid:10)(cid:13)(cid:12)(cid:14)(cid:3)(cid:16)(cid:15) (cid:0)(cid:18)(cid:17) , to be a subset of (cid:0) satisfying the following property: (cid:3) is an (cid:4) -approximate nearest neighbor for any point (cid:19) inside the convex polyhedron deﬁned by the bisectors between (cid:3) and the sites in (cid:5)(cid:20)(cid:6)(cid:9)(cid:8) (cid:10) (cid:12)(cid:14)(cid:3)(cid:16)(cid:15) (cid:0)(cid:21)(cid:17) . We show that there exists a set of (cid:4) -approximate Voronoi neighbors with cardinality (cid:22)(cid:23)(cid:12)(cid:25)(cid:24)(cid:27)(cid:26)(cid:29)(cid:28) (cid:4) (cid:17) for (cid:30)(cid:23)(cid:31)! and cardinality (cid:22)(cid:23)(cid:12)
3.1: A Novel Polarizer Glassestype 3D Displays with a Patterned Retarder

To ameliorate the polarized glassless type 3D display with a patterned retarder, we strongly recommend the iPR in cell black stripe Patterned Retarder structure. In 3D mode, this particular structure can improve vertical viewing angle. When 2D switching mode is expressed, luminance and visibility will ameliorate at the same time
Roles of PCNA ubiquitination and TLS polymerases κ and η in the bypass of methyl methanesulfonate-induced DNA damage

Translesion synthesis (TLS) provides a highly conserved mechanism that enables DNA synthesis on a damaged template. TLS is performed by specialized DNA polymerases of which polymerase (Pol) κ is important for the cellular response to DNA damage induced by benzo[a]pyrene-7,8-dihydrodiol-9,10-epoxide (BPDE), ultraviolet (UV) light and the alkylating agent methyl methanesulfonate (MMS). As TLS polymerases are intrinsically error-prone, tight regulation of their activity is required. One level of control is provided by ubiquitination of the homotrimeric DNA clamp PCNA at lysine residue 164 (PCNA-Ub). We here show that Polκ can function independently of PCNA modification and that Polη can function as a backup during TLS of MMS-induced lesions. Compared to cell lines deficient for PCNA modification (PcnaK164R) or Polκ, double mutant cell lines display hypersensitivity to MMS but not to BPDE or UV-C. Double mutant cells also displayed delayed post-replicative TLS, accumulate higher levels of replication stress and delayed S-phase progression. Furthermore, we show that Polη and Polκ are redundant in the DNA damage bypass of MMS-induced DNA damage. Taken together, we provide evidence for PCNA-Ub-independent activation of Polκ and establish Polη as an important backup polymerase in the absence of Polκ in response to MMS-induced DNA damage.
Image matching under generalized hough transform

The paper analyzes the techniques of image template matching, and gives a matching framework based on generalized Hough transform, which is applicable to lots of current methods. With the framework’s guidance, extracting image features with specific characteristics and devising feature matching algorithms become easier and more efficient. We propose a new fast matching algorithm as evidence. It is robust for the linear transformation of image grey value and image noise. Its time complexity reduced to O(size of search image), the theoretic lower limit for image matching.
Undertreated Breast Cancer in the Elderly

The effect of undertreatment with adjuvant hormonal therapy, chemotherapy, or radiation was studied in elderly women with breast cancer. A prospectively maintained database was used to identify women undergoing potentially curative surgery between 1978 and 2012. The presentation, pathologic findings, treatment, and outcomes of 382 women over 70 were compared to the findings in 2065 younger patients. Subsequently, conventionally treated and undertreated elderly patients were identified and their characteristics and outcomes were compared. Both young and old patients presented most frequently with mammographic findings, but older patients presented more frequently with mammographic masses while younger patients presented more frequently with mammographic calcifications. Cancers of older patients were significantly more favorable than cancers in younger patients: smaller, with more infiltrating lobular, fewer ductal carcinoma in situ, and more frequently estrogen receptor positive and fewer were poorly differentiated. Elderly patients had less axillary sampling, fewer mastectomies, less adjuvant radiation therapy, and more hormonal therapy. Fifty-one percent of the 382 elderly patients were undertreated by conventional criteria. Undertreated patients were more frequently in situ, better differentiated, smaller, and more often estrogen receptor positive. Forty-four percent of the undertreated patients died during followup without disease recurrence. Despite undertreatment, local and distant disease-free survival was comparable to patients who were not undertreated.
Tempo Driven Audio-to-Score Alignment Using Spectral Decomposition and Online Dynamic Time Warping

In this article, we present an online score following framework designed to deal with automatic accompaniment. The proposed framework is based on spectral factorization and online Dynamic Time Warping (DTW) and has two separated stages: preprocessing and alignment. In the first one, we convert the score into a reference audio signal using a MIDI synthesizer software and we analyze the provided information in order to obtain the spectral patterns (i.e., basis functions) associated to each score unit. In this work, a score unit represents the occurrence of concurrent or isolated notes in the score. These spectral patterns are learned from the synthetic MIDI signal using a method based on Non-negative Matrix Factorization (NMF) with Beta-divergence, where the gains are initialized as the ground-truth transcription inferred from the MIDI. On the second stage, a non-iterative signal decomposition method with fixed spectral patterns per score unit is used over the magnitude spectrogram of the input signal resulting in a distortion matrix that can be interpreted as the cost of the matching for each score unit at each frame. Finally, the relation between the performance and the musical score times is obtained using a strategy based on online DTW, where the optimal path is biased by the speed of interpretation. Our system has been evaluated and compared to other systems, yielding reliable results and performance.
Fault identification for nonlinear switched systems: average dwell time approach

This paper investigates process fault identification for continuous-time nonlinear switched systems. A novel fault estimation algorithm, based on an adaptive fault diagnosis observer and average dwell time technique, is first proposed. In terms of linear matrix inequality, sufficient condition for the existence of the adaptive observer is derived. Simulation results are presented to illustrate the efficiency of the proposed results.
CMOS Integrated Highly Efficient Full Wave Rectifier

This paper presents a novel architecture for a highly efficient rectifier circuit. The rectifier can be fully integrated using a standard CMOS process without special process options. The needed dynamic bulk regulation transistors are inherent in the first stage. A full wave rectifier with only one threshold voltage drop and an efficiency of approximately 50% is realized. In combination with a low-power active diode the proposed rectifier shows nearly no voltage drop and the efficiency rises up to 90%.
Grafting Locomotive Motions

The notion of transplanting limbs to enhance a motion capture database is appealing and has been recently introduced [Sha04], [Ike04]. A key difficulty in the process is identifying believable combinations. Not all transplantations are successful; we also need to identify appropriate frames in the different clips that are “cutpasted. ” In this paper, we describe motion grafting, a method to synthesize new believable motion using existing motion captured data. In our deterministic scheme designed for locomotive actions, motion grafts increase the number of combinations by mixing independent kinematics chains with a base motion in a given clip. Our scheme uses a cluster graph data structure to establish correlation among grafts so that the result is believable and synchronized.
The Ataxia telangiectasia Gene Product Is Required for Oxidative Stress-induced G1 and G2Checkpoint Function in Human Fibroblasts*

Ataxia telangiectasia (AT) is an autosomal recessive disorder characterized by neuronal degeneration accompanied by ataxia, telangiectasias, acute cancer predisposition, and sensitivity to ionizing radiation (IR). Cells from individuals with AT show unusual sensitivity to IR, severely attenuated cell cycle checkpoint functions, and poor p53 induction in response to IR compared with normal human fibroblasts (NHFs). The gene mutated in AT (ATM) has been cloned, and its product, pATM, has IR-inducible kinase activity. The AT phenotype has been suggested to be a consequence, at least in part, of an inability to respond appropriately to oxidative damage. To test this hypothesis, we examined the ability of NHFs and AT dermal fibroblasts to respond tot-butyl hydroperoxide and IR treatment. AT fibroblasts exhibit, in comparison to NHFs, increased sensitivity to the toxicity of t-butyl hydroperoxide, as measured by colony-forming efficiency assays. Unlike NHFs, AT fibroblasts fail to show G1 and G2 phase checkpoint functions or to induce p53 in response to t-butyl hydroperoxide. Treatment of NHFs with t-butyl hydroperoxide activates pATM-associated kinase activity. Our results indicate that pATM is involved in responding to certain aspects of oxidative damage and in signaling this information to downstream effectors of the cell cycle checkpoint functions. Our data further suggest that some of the pathologies seen in AT could arise as a consequence of an inability to respond normally to oxidative damage.