LLukas22/scidocs huggingface dataset:
Subspace Learning with Partial Information

The goal of subspace learning is to find a k-dimensional subspace of R, such that the expected squared distance between instance vectors and the subspace is as small as possible. In this paper we study subspace learning in a partial information setting, in which the learner can only observe r ≤ d attributes from each instance vector. We propose several efficient algorithms for this task, and analyze their sample complexity.
The YouTube video recommendation system

We discuss the video recommendation system in use at YouTube, the world's most popular online video community. The system recommends personalized sets of videos to users based on their activity on the site. We discuss some of the unique challenges that the system faces and how we address them. In addition, we provide details on the experimentation and evaluation framework used to test and tune new algorithms. We also present some of the findings from these experiments.
Increasing the Inclusion of Reading Comprehension Strategies in Secondary Content-Area Classrooms.

Today’s middle and high schools are flooded with readers who struggle to complete the academic tasks required of them. The Alliance for Excellent Education noted that approximately six million middle and high school students have very low literacy levels that affect achievement and content mastery in all subjects (Biancarosa & Snow, 2004). Perhaps the most important literacy task for our middle and high schoolers involves reading comprehension. For the purpose of this paper, reading comprehension will be defined as an active, problem-solving process; “Reading comprehension is intentional thinking during which meaning is constructed through interactions between text and reader” (Durkin, 1993, p. 5). The academic importance of instruction in reading comprehension is certain. Students who are taught comprehension strategies such as predicting, questioning, and summarizing improve their reading comprehension scores on both experimenter-constructed and standardized tests (Pressley, 1998; Rosenshine, Meister, & Chapman, 1996). Though results suggest that secondary teachers can assist students in becoming proficient readers by arming them with a variety of comprehension strategies, the degree to which teachers provide such instruction is unclear. Echoing the importance of reading comprehension, the National Reading Panel (2000) found research evidence for the following eight reading comprehension strategies. 1. Comprehension monitoring in which the reader learns how to be aware or conscious of his or her understanding during reading and learns procedures to deal with problems in understanding as they arise. ABSTRACT This article presents research on the frequency of reading comprehension instruction in secondary content-area classrooms. In 2,400 minutes of direct classroom observation, only 3% of instructional time was allotted to coaching middle and high school readers on the reading comprehension strategies essential to understanding informational text. Finally, suggestions for increasing reading comprehension in such classrooms are provided.
Efficient Unsupervised Temporal Segmentation of Motion Data

We introduce a method for automated temporal segmentation of human motion data into distinct actions and compositing motion primitives based on self-similar structures in the motion sequence. We use neighborhood graphs for the partitioning and the similarity information in the graph is further exploited to cluster the motion primitives into larger entities of semantic significance. The method requires no assumptions about the motion sequences at hand and no user interaction is required for the segmentation or clustering. In addition, we introduce a feature bundling preprocessing technique to make the segmentation more robust to noise, as well as a notion of motion symmetry for more refined primitive detection. We test our method on several sensor modalities, including markered and markerless motion capture as well as on electromyograph and accelerometer recordings. The results highlight our system's capabilities for both segmentation and for analysis of the finer structures of motion data, all in a completely unsupervised manner.
Hot Under the Collar: Mapping Thermal Feedback to Dimensional Models of Emotion

There are inherent associations between temperature and emotion in language, cognition and subjective experience [22,42]. However, there exists no systematic mapping of thermal feedback to models of emotion that could be used by designers and users to convey a range of emotions in HCI. A common way of classifying emotions and quantifying emotional experience is through ratings along valence and arousal dimensions, originating from Russell's circumplex model [32]. Therefore, the research in this paper mapped subjective ratings of a range of thermal stimuli to the circumplex model to understand the range of emotions that might be conveyed through thermal feedback. However, as the suitability of the model varies depending on the type of emotional stimuli [31], we also compared the goodness of fit of ratings between the circumplex and vector [8,31] models of emotion. The results showed that thermal feedback was interpreted as representing a limited range of emotions concentrated in just two quadrants or categories of the circumplex: high valence, low arousal and low valence, high arousal. Warm stimuli were perceived as more pleasant/positive than cool stimuli and altering either the rate or extent of temperature change affected both valence and arousal axes simultaneously. The results showed a significantly better fit to a vector model than to the circumplex.
The impact of anemia on energy and physical functioning in individuals with AIDS.

BACKGROUND
To our knowledge, the relationship between changes in hemoglobin level and energy and physical functioning in the anemic and "normal" ranges of hemoglobin among individuals with AIDS has not been well characterized.


METHODS
In a multicenter, prospective, cohort study involving 19 clinics in the United States, 1406 individuals, 13 years and older, with AIDS were administered the Medical Outcomes Study HIV [human immunodeficiency virus] Health Survey (MOS-HIV) at baseline and at 3- to 6-month follow-up visits. Energy and physical functioning scores were the main outcomes.


RESULTS
At baseline, a higher hemoglobin level was associated with a higher energy score and a higher physical functioning score (P < .001 for both), after adjusting for CD4 lymphocyte count, sex, age, education, and HIV risk factor. In longitudinal analyses, increases in hemoglobin were associated with increases in energy and physical functioning scores (P < .001 for both), after adjusting for CD4 lymphocyte count, sex, age, education, and HIV risk factor. Changes in the energy scales were, on average, 1.5 and 2.3 scale points per 1-g/dL change in hemoglobin level in the normal and anemic ranges, respectively. For the physical functioning scale, average changes were 2.7 and 2.6 scale points per 1-g/dL change in hemoglobin level in the normal and anemic ranges, respectively.


CONCLUSIONS
Higher levels of hemoglobin are associated with better quality of life among individuals with AIDS. Changes in hemoglobin level within the conventional normal range of hemoglobin are also significantly associated with changes in quality of life.
Optimizing Coverage in a K-Covered and Connected Sensor Network Using Genetic Algorithms

Sensing coverage of a sensor network characterizes how well an area is monitored or tracked by sensors. Connectivity is an important requirement that shows how nod es in a sensor network can effectively communicate. Some hotspot areas in the network are more important than oth er areas and need to be covered by more sensors. We are interested in an initial deployment strategy that maxim izes the coverage area of wireless sensor network while preserving connectivity between nodes provided that all gi ven hotspot regions are covered by at least k sensors. We propose a genetic algorithm based solution to find an optim al sensor node distribution. Experimental results are presented to evaluate our algorithm. Key–Words:Wireless Sensor Networks, Genetic Algorithm, Coverage, Co nnectivity, k-Coverage
Two Models of Land Overvaluation and Their Implications

Narita for their comments. Some of the results and ideas in this paper are similar to those in a working paper that I wrote in 2009, "Bursting Bubbles: Consequences and Cures."
Circular Patch Microstrip Array Antenna for KU-band

This paper present a circular patch microstrip array antenna operate in KU-band (10.9GHz – 17.25GHz). The proposed circular patch array antenna will be in light weight, flexible, slim and compact unit compare with current antenna used in KU-band. The paper also presents the detail steps of designing the circular patch microstrip array antenna. An Advance Design System (ADS) software is used to compute the gain, power, radiation pattern, and S11 of the antenna. The proposed Circular patch microstrip array antenna basically is a phased array consisting of ‘n’ elements (circular patch antennas) arranged in a rectangular grid. The size of each element is determined by the operating frequency. The incident wave from satellite arrives at the plane of the antenna with equal phase across the surface of the array. Each ‘n’ element receives a small amount of power in phase with the others. There are feed network connects each element to the microstrip lines with an equal length, thus the signals reaching the circular patches are all combined in phase and the voltages add up. The significant difference of the circular patch array antenna is not come in the phase across the surface but in the magnitude distribution. Keywords—Circular patch microstrip array antenna, gain, radiation pattern, S-Parameter.
Multi-view 3D Models from Single Images with a Convolutional Network

[1] Kulkarni, T. D., Whitney , W. F., Kohli, P., Tenenbaum, J.: Deep convolutional inverse graphics network. NIPS 2015. [2] Dosovitskiy, A., Springenberg, J. T., Brox, T.: Learning to generate chairs with convolutional neural networks. CVPR 2015. [3] Yang, J., Reed, S. E., Yang, M. H., Lee, H.: Weakly-supervised disentangling with recurrent transformations for 3D view synthesis. NIPS 2015. The network was trained on renderings of synthetic 3D models.
Tai chi exercise for patients with chronic obstructive pulmonary disease: a pilot study.

OBJECTIVE
To determine the feasibility of a randomized controlled trial of the effect of a tai chi program on quality of life and exercise capacity in patients with COPD.


METHODS
We randomized 10 patients with moderate to severe COPD to 12 weeks of tai chi plus usual care (n = 5) or usual care alone (n = 5). The tai chi training consisted of a 1-hour class, twice weekly, that emphasized gentle movement, relaxation, meditation, and breathing techniques. Exploratory outcomes included disease-specific symptoms and quality-of-life, exercise capacity, pulmonary function tests, mood, and self-efficacy. We also conducted qualitative interviews to capture patient narratives regarding their experience with tai chi.


RESULTS
The patients were willing to be randomized. Among 4 of the 5 patients in the intervention group, adherence to the study protocol was excellent. The cohort's baseline mean ± SD age, percent-of-predicted FEV₁, and ratio of FEV₁ to forced vital capacity were 66 ± 6 y, 50 ± 12%, and 0.63 ± 0.14, respectively. At 12 weeks there was significant improvement in Chronic Respiratory Questionnaire score among the tai chi participants (1.4 ± 1.1), compared to the usual-care group (-0.1 ± 0.4) (P = .03). There were nonsignificant trends toward improvement in 6-min walk distance (55 ± 47 vs -13 ± 64 m, P = .09), Center for Epidemiologic Studies Depression Scale (-9.0 ± 9.1 vs -2.8 ± 4.3, P = .20), and University of California, San Diego Shortness of Breath score (-7.8 ± 3.5 vs -1.2 ± 11, P = .40). There were no significant changes in either group's peak oxygen uptake.


CONCLUSIONS
A randomized controlled trial of tai chi is feasible in patients with moderate to severe COPD. Tai chi exercise as an adjunct to standard care warrants further investigation.
Maximal regularity for nonautonomous evolution equations

We derive sufficient conditions, perturbation theorems in particular, for nonautonomous evolution equations to possess the property of maximal Lp regularity. Posted at the Zurich Open Repository and Archive, University of Zurich ZORA URL: https://doi.org/10.5167/uzh-21760 Accepted Version Originally published at: Amann, H (2004). Maximal regularity for nonautonomous evolution equations. Advanced Nonlinear Studies, 4(4):417-430. Maximal regularity for nonautonomous evolution equations H. Amann Institut für Mathematik, Universität Zürich, Winterthurerstr. 190, CH–8057 Zürich, Switzerland e-mail: amann@math.unizh.ch To Antonio Ambrosetti for his 60 birthday
Hard work: Hegel and the meaning of the state in his philosophy of right

Hegel's Philosophy of Right presents a collection of new essays by leading international philosophers and Hegel scholars that analyze and explore Hegel's key contributions in the areas of ethics, politics, and the law.
Assessing dexterity function: a comparison of two alternatives for the NIH Toolbox.

STUDY DESIGN
Clinical measurement.


INTRODUCTION
Manual dexterity is an important aspect of motor function across the age span.


PURPOSE OF THE STUDY
To identify a single measure of manual dexterity for inclusion in the National Institutes of Health (NIH) Toolbox Assessment of Neurological and Behavioral Function.


METHODS
A total of 340 subjects participated in our study. Two alternatives, Rolyan® 9-Hole Peg Test (9-HPT) and Grooved Pegboard test, were compared by assessing their score range across age groups (3-85 yr) and their test-retest reliability, concurrent, and known groups validity.


RESULTS
The 9-HPT was a simple, efficient, and low-cost measure of manual dexterity appropriate for administration across the age range. Test-retest reliability coefficients were 0.95 and 0.92 for right and left hands, respectively. The 9-HPT correlated with Bruininks-Oseretsky Test (BOT) of Motor Proficiency, dexterity subscale, at -0.87 to -0.89 and with Purdue Pegboard at -0.74 to -0.75. The Grooved Pegboard had good test-retest reliability (0.91 and 0.85 for right and left hands, respectively). The Grooved Pegboard correlated with BOT at -0.50 to -0.63 and with Purdue Pegboard at -0.73 to -0.78. However, the Grooved Pegboard required longer administration time and was challenging for the youngest children and oldest adults.


CONCLUSIONS
Based on its feasibility and measurement properties, the 9-HPT was recommended for inclusion in the motor battery of the NIH Toolbox.


LEVEL OF EVIDENCE
NA.
The “Little AVM”: A New Entity in High-flow versus Low-flow Vascular Malformations

BACKGROUND
Arteriovenous malformations (AVMs) are high-flow lesions with abnormal connections between arteries and veins without an intervening capillary bed. Infrequently, the radiographic diagnosis of a vascular lesion will not support the clinical diagnosis of an AVM. These "discrepant" lesions are not adequately captured within the current classification system and represent a treatment dilemma. The purpose of this study is to review our center's experience with vascular malformations where incongruity in a patient's clinical and radiographic presentation produces a diagnostic and therapeutic challenge.


METHODS
A retrospective chart review of patients with atypical AVM pre sen ta tions was performed. Parameters reviewed included patient history and demogra phics, clinical presentation, radiological imaging, and treatment modalities.


RESULTS
Over a 15-year period, we identified 7 cases of vascular malformations with discrepant clinical and radiological findings concerning flow characteristics. All patients were treated based on their radiological diagnosis and most were managed with sclerotherapy. No lesions evolved into a high-flow process, and there was no recurrence at a minimum of 24 months of follow-up.


CONCLUSIONS
We have identified and described a unique subcategory of vascular malformations that have clinical features of high-flow malformations but radiological features of low-flow malformations. These lesions behave like low-flow malformations and should be treated as such. We propose that complex vascular malformations are best evaluated by both clinical and specialized diagnostic radiological means; the radiologic diagnoses should supplant what is found clinically, and ultimately treatment should be preferentially based on a radiological diagnosis.
Self-Tuned NFC and Adaptive Torque Hysteresis-Based DTC Scheme for IM Drive

This paper presents a simplified self-tuned Sugeno-type neuro-fuzzy controller (NFC)-based direct torque control (DTC) scheme for induction motor (IM) drive. A simple tuning algorithm is developed based on the reference and actual acceleration of the motor. The online tuning strategy adjusts the parameters of the consequent layer of the NFC in order to minimize the square of the error between the actual and the reference acceleration of the motor. In a conventional DTC scheme, the band limits of flux and torque hysteresis controllers remain fixed, and hence, the torque and flux ripples are high. In order to minimize the torque ripples of the IM, the hysteresis band limits are adjusted online for the torque hysteresis controller. Thus, the proposed NFC is used to achieve high dynamic performance of the drive, and the variable hysteresis controller is used to reduce the steady-state torque ripple. The proposed NFC-based DTC scheme is successfully implemented in real time using the DSP board DS1104 for a prototype 1-hp squirrel-cage IM. The performance of the proposed drive is tested at different operating conditions in both simulation and experiment. The proposed NFC-based DTC scheme is found superior to the conventional DTC scheme in both steady-state and transient conditions.
Cross-cultural adaptation and validation of the Michigan Hand Outcomes Questionnaire (MHQ) for Brazil: validation study.

CONTEXT AND OBJECTIVE
Rheumatoid arthritis is a chronic systemic disease that causes joint damage. A variety of methods have been used to evaluate the general health status of these patients but few have specifically evaluated the hands. The objective of this study was to translate, perform cultural adaptation and assess the validity of the Michigan Hand Outcomes Questionnaire for Brazil.


DESIGN AND SETTING
Validation study conducted at a university hospital in Curitiba, Brazil.


METHODS
Firstly, the questionnaire was translated into Brazilian Portuguese and back-translated into English. The Portuguese version was tested on 30 patients with rheumatoid arthritis and proved to be understandable and culturally adapted. After that, 30 patients with rheumatoid arthritis were evaluated three times. On the first occasion, two evaluators applied the questionnaire to check inter-rater reproducibility. After 15 days, one of the evaluators reassessed the patients to verify intra rater reproducibility. To check the construct validity at the first assessment, one of the evaluators also applied other similar instruments.


RESULTS
There were strong inter and intra rater correlations in all the domains of the Michigan Hand Outcomes Questionnaire. Cronbach's alpha was higher than 0.90 for all the domains of the questionnaire, thus indicating excellent internal validity. Almost all domains of the questionnaire presented moderate or strong correlation with other instruments, thereby showing good construct validity.


CONCLUSION
The Brazilian Portuguese version of the Michigan Hand Outcomes Questionnaire was translated and culturally adapted successfully, and it showed excellent internal consistency, reproducibility and construct validity.
A Wearable Computer for Use in Microgravity Space and Other Non-Desktop Environments

We present one possible design for a “wearable” computer—a computer that is worn. Our prototype permits text entry without the need of a table or other supporting surface. Typing can be performed while standing or even walking, Possible applications for this device are also discussed. KEY WORD S: Input devices, input tasks, wearable computers, portable computers, Half-QWERTY, one-handed keyboard, skill transfer. INTRODUCTION The tremendous and increasing popularity of notebook computers over the past several years has encouraged manufacturers to push the envelope ever further. This has led to the development of palmtops and PDAs, devices small enough to fit in the palm of your hand. In an interesting spin-off, the technologies which make these devices possible are being used to push portability even further, creating a new breed of computer known as a “wearable.” While not yet common, their eventual success relies on finding niche applications to pave the way for more general use. In this paper we present one possible design for a wearable, and explore a few possible niches. DESIGN PROTOTYPE Our prototype wearable consists of three modules (Figure 1): keyboard [1], display, and computer. The keyboard and display modules are strapped to the operator’s forearms. The computer module can be carried in a waist Permission to make digilal/hard copies of all or part of this mahxird for personal or classroom use is granted without fee provided lha( the copies are not made or distributed for profit or commerchl advantage, the copyright notice, the .Iille .of the publication and its date appear, and notice is gwen that copyright IS by permission of the ACM, Inc. To copy otherwise, to republish, to post on servers or to redistribute to lists, requires specific permission and/or fee. CHI ’96 Companion, Vancouver, BC Canada @1996 ACM t)-89791.s3~-()/96104. .$3.50 lK1 William Buxton University of Toronto& Xerox PARC c/o Comp;ter Systems Research Institute University of Toronto Toronto, Ontario, Canada M5S 1A4 (416) 978-1961 buxton@dgp.toronto. edu pouch or backpack, along with batteries for power. By assuming the typing posture in Figure 2, the operator can enter text information. At other times, the operator’s hands are free to perform other tasks. In mobile applications, this is often important, Figure 1. Keyboard and display modules of prototype wearable computer. The computer and battery module is not shown. Design Factors We had four main goals in mind while designing our wearable: 1. Minimize training 2. Minimize fatigue 3. Minimize weight 4. Minimize power consumption Training was minimized by using a Half-QWERTY onehanded keyboard as the primary input device. This keyboard allows touch-typists to type one-handed using their existing typing skills [1].