Stream-based active learning for sliding windows under the influence of verification latency

Stream-based active learning (AL) strategies minimize the labeling effort by querying labels that improve the classifier’s performance the most. So far, these strategies neglect the fact that an oracle or expert requires time to provide a queried label. We show that existing AL methods deteriorate or even fail under the influence of such verification latency. The problem with these methods is that they estimate a label’s utility on the currently available labeled data. However, when this label would arrive, some of the current data may have gotten outdated and new labels have arrived. In this article, we propose to simulate the available data at the time when the label would arrive. Therefore, our method Forgetting and Simulating (FS) forgets outdated information and simulates the delayed labels to get more realistic utility estimates. We assume to know the label’s arrival date a priori and the classifier’s training data to be bounded by a sliding window. Our extensive experiments show that FS improves stream-based AL strategies in settings with both, constant and variable verification latency.

Hydrothermal Regime Variation and Ecological Effects on Fish Reproduction in the Yangtze River

Water temperature, as one of the important water environment impact factors, has a significant impact on the survival and development of aquatic organisms. We selected water temperature data (1959–2017) from four key hydrological stations in the Yangtze River: Cuntan, Yichang, Hankou, and Datong. We analyzed the characteristics and variability of the Yangtze River hydrothermal regime by the Mann-Kendall method, wavelet analysis, and by the IHA-RVA method to analyze hydrothermal regime variations of the Yangtze River, and the response mechanisms of fish to variations in hydrothermal regimes were explored. The results show that (1) The annual average water temperature of the Yangtze River is warming, and Cuntan Station, Yichang Station, Hankou Station, and Datong Station have a sudden increase in temperature in 2002, 1995, 2003, and 2004, and the periodicity analysis demonstrates that Cuntan, Yichang, and Datong stations all have main periods of 24~32 years; (2) The overall variations of 32 hydrothermal indicators at Cuntan Station and Yichang Station reached 65% and 61%, which are close to the height variation; (3) With the construction of the Three Gorges Dam, the stagnant cooling effect caused the arrival date of the upper reproduction water temperature of “The four major fish species” to be delayed by about 23 days, and the stagnant heat effect caused the arrival date of the Chinese sturgeon reproduction upper limit water temperature to be delayed by about 30 days.

Timing of spring departure of long distance migrants correlates with previous year's conditions at their breeding site

Precise timing of migration is crucial for animals targeting seasonal resources at locations encountered across their annual cycle. Upon departure, long-distance migrants need to anticipate unknown environmental conditions at their arrival site, and they do so with their internal annual clock. Here, we tested the hypothesis that long-distance migrants synchronize their circannual clock according to the phenology of their environment during the breeding season and therefore adjust their spring departure date according to the conditions encountered at their breeding site the year before. To this end, we used tracking data of Eurasian curlews from different locations and combined movement data with satellite-extracted green-up dates at their breeding site. The spring departure date was better explained by green-up date of the previous year, while arrival date at the breeding site was better explained by latitude and longitude of the breeding site, suggesting that other factors impacted migration timing en route . On a broader temporal scale, our results suggest that long-distance migrants may be able to adjust their migration timing to advancing spring dates in the context of climate change.

Black Kites on a Flyway Between Western Siberia and the Indian Subcontinent

Background The Black Kite (Milvus migrans) is one of the most widespread raptors in the World. The Palaearctic is populated by two migrating subspecies, Milvus migrans migrans and Milvus migrans lineatus, in the western and eastern part of this realm, respectively. The intergradation zone of M. m. migrans/M. m. lineatus covers large areas in-between. Migration routes of M. m. migrans from Europe to Sub-Saharan Africa and the Middle East are well known including large waterbodies as main environmental obstacle. MethodsWe tagged with GPS/SMS/GPRS telemetry loggers 13 and 6 Black Kite pulli in lowland around Biysk and in mountains around Kosh-Agach. ResultsBlack Kites originating from Biysk migrated through the Western Circum-Himalayan Corridor. Black Kites originating from Kosh-Agach used the Trans-Himalayan Corridor crossing the Himalayas in altitudes of up to 6 256 m asl. The average total distance travelled of Black Kites from both subpopulations was 9 166 m without any significant differences between these subpopulations. Timing of autumn migration varied slightly among individuals in departure date (30 August ± 9 days) and differed more in arrival date (26 October ± 92 days). The timing of spring migration varied less in both departure date (17 April ± 12 days) and arrival date (09 May ± 14 days). Black Kites from both subpopulations wintered in low elevations of anthropogenic areas of Pakistan and India. Birds wintered on average for 190 days, and the mean area of individual home ranges was 4 704 km2. During the breeding period, birds occupied mainly natural or semi-natural habitats in southwestern Siberia, where they spent on average 106 days with an average home range size 3 554 km2. Conclusion Black Kites crossing the Himalayas fly and, moreover, stay for hours resting at night in the environment of mountains at altitudes over 5000 m. It seems that the vast breeding territory of Black Kites in the Palearctic realm is connected with the unusual behavioural flexibility of Black Kites to surmount various environmental obstacles on their migration routes.

Determinants of moult haulout phenology and duration in southern elephant seals

Phenological shifts are among the most obvious biological responses to environmental change, yet documented responses for Southern Ocean marine mammals are extremely rare. Marine mammals can respond to environmental changes through phenological flexibility of their life-history events such as breeding and moulting. Southern elephant seals (Mirounga leonina) undergo an obligatory annual moult which involves the rapid shedding of epidermal skin and hair while seals fast ashore. We quantified the timing (phenology) and duration (the time from arrival ashore to departure) of the moult haulout of 4612 female elephant seals at Marion Island over 32 years. Using linear mixed-effects models, we investigated age, breeding state and environmental drivers of moult timing and haulout duration. We found no clear evidence for a temporal shift in moult phenology or its duration. Annual variation in moult arrival date and haulout duration was small relative to age and breeding effects, which explained more than 90% of the variance in moult arrival date and 25% in moult haulout duration. All environmental covariates we tested explained minimal variation in the data. Female elephant seals moulted progressively later as juveniles, but adults age 4 and older had similar moult start dates that depended on the breeding state of the female. In contrast, moult haulout duration was not constant with age among adults, but instead became shorter with increasing age. Moulting is energetically expensive and differences in the moult haulout duration are possibly due to individual variation in body mass and associated metabolizable energy reserves, although other drivers (e.g. hormones) may also be present. Individual-based data on moult arrival dates and haulout duration can be used as auxiliary data in demographic modelling and may be useful proxies of other important biological parameters such as body condition and breeding history.

DRESSES, FABRIC AND SPECIAL ITEMS AND VALUES OF THE OTTOMAN PADIŞAH AND BÜROKRATS (1670-1672)

The need for cover is a requirement in all parts of the world. More or less this need has been realized in almost every society. In addition, clothing is one of the basic needs of human beings. This basic need has become a pleasure over time, and the temporary innovation that has entered the life of society with the desire to dress completely or the need for change has turned into an excessive, common indulgence shown by the society for a certain period of time. When we evaluate clothing in terms of nations, it has gained very different meanings with the effect of the cultural structure of the society. Considering this situation in the context of civilizations, of course, we can say that it has presented a similar privilege. In short, every society has made its dress code suitable for its culture and civilization. As in the rest of the world, the robes, dresses, turbans and fabrics of the Ottoman sultans showed themselves clearly as an indicator of the position, wealth and status. Especially caftans, fabrics and patterns, each one is a masterpiece of art. Despite having a simple form according to researches, Ottoman caftans have a very magnificent appearance and beauty. The decorations made for these caftans, lining and moldings, fur ornaments, ornaments made with buttons are very perfect. These caftans have aroused the admiration of the whole world with their fabric, motif and splendor, and many researches have been done on these caftans, which have been exhibited and preserved in various local and foreign museums. The sultan's clothes in the Topkapı Palace Museum Sultan's Clothes Archive consist of approximately 2500 pieces. Most of these are hilat, robes and shalwars. In addition, although it is less, there are also children's (prince's) clothes, so there are no women's clothes. RESEARCH ARTICLE ATLAS Journal International Refereed Journal On Social Sciences e-ISSN:2619-936X Arrival Date : 19.03.2021 Published Date : 30.04.2021 2021, Vol:7, Issue:40 pp: 1740- 1758 DOI: http://dx.doi.org/10.31568/atlas.676 ATLAS INTERNATIONAL REFEREED JOURNAL ON SOCIAL SCIENCES Year: 2021 Vol:7 Issue: 40 1740 Here, 21 caftans belonging to Fatih Sultan Mehmet, 77 caftans belonging to Suleiman the Magnificent, 13 caftans belonging to I. Ahmet, II. 30 caftans belonging to Osman, IV. While it is known that there were 27 caftans belonging to Murat, the caftans belonging to six rulers before Fatih Sultan Mehmet were not mentioned by name. In this study, the money spent for the clothes of the sultan in the Archives of the Prime Ministry Ottoman Archives, Topkapı Palace Museum, the cocks and dresses that the sultan had to buy from the council; In dâbü's-sâ, we will focus on the kafân, sarık, other items and values that are deserved by the landlords, the palace-i Atiq aghas, the boys, the Treasury, the cellar, the lords of the Voyage rooms and the people in charge. Keywords: Ottoman, Sultan, Bureaucrat, Clothes, Fabric, Special Items.

Integrating Causal and Evolutionary Analysis of Life-History Evolution: Arrival Date in a Long-Distant Migrant

In migratory species, the timing of arrival at the breeding grounds is a life-history trait with major fitness consequences. The optimal arrival date varies from year-to-year, and animals use cues to adjust their arrival dates to match this annual variation. However, which cues they use to time their arrival and whether these cues actually predict the annual optimal arrival date is largely unknown. Here, we integrate causal and evolutionary analysis by identifying the environmental variables used by a migratory songbird to time its arrival dates and testing whether these environmental variables also predicted the optimal time to arrive. We used 11 years of male arrival data of a pied flycatcher population. Specifically, we tested whether temperature and normalized difference vegetation index (NDVI) values from their breeding grounds in the Netherlands and from their wintering grounds in Ivory Coast explained the variation in arrival date, and whether these variables correlated with the position of the annual fitness peak at the breeding grounds. We found that temperature and NDVI, both from the wintering and the breeding grounds, explained the annual variation in arrival date, but did not correlate with the optimal arrival date. We explore three alternative explanations for this lack of correlation. Firstly, the date of the fitness peak may have been incorrectly estimated because a potentially important component of fitness (i.e., migration date dependent mortality en route or directly upon arrival) could not be measured. Secondly, we focused on male timing but the fitness landscape is also likely to be shaped by female timing. Finally, the correlation has recently disappeared because climate change disrupted the predictive value of the cues that the birds use to time their migration. In the latter case, birds may adapt by altering their sensitivity to temperature and NDVI.

PSI-9 Effect of Pen-Surface Temperature and Trace Mineral Source on Infrared Hide Temperature in Cattle Raised in Confinement Under a Natural-Feeding Protocol in Summer

Thirty-two pens housing between 249–282 beef cattle each were blocked by arrival date and sex and used to investigate effects of pen-surface temperature, trace mineral source and sex on hide temperature. A randomized complete block design was used with 2 treatments: 1) Control, with inorganic sources for all trace minerals of interest; and 2) Test, with ProPath (Zinpro Corporation, Eden Prairie, MN) used to provide additional AA complexes of Zn and Mn, complexed Co, and ruminally-protected folic acid to basal control diet. Cattle were fed to meet requirements of JBS “Aspen Ridge” and observed twice monthly from June–September. Three observations per observation day were made at these times: 1) 0700–1000; 2) 1015–1315; 3) 1430–1700 (all times ± 30 min). Hide temperatures were observed caudal to glenohumeral joints of 10 black-hided and, when available, 10 non-black-hided animals per pen. Within each pen, surface temperatures were observed at 3 locations on the cement bunk apron and 7 locations on the dirt surface. Temperatures were observed using a Fluke VT04 visual infrared thermometer. Temperatures were greater on black-hided cattle than non-black-hided cattle (P < 0.0001) and on steers than heifers (P < 0.0001). Temperatures on Test cattle were greater (P = 0.0008) than temperatures on Control cattle, but this effect was small (0.251o C) and inconsistent across observation days (treatment within date interaction: P < 0.0001). Pen-surface temperatures were greater in Time 2 than Time 1 (P < 0.0001), but not different between Time 2 and Time 3 (P = 0.37). Hide temperatures on all cattle were correlated with pen-surface temperature (R2 = 0.43). Trace mineral source had a small but statistically significant effect on hide temperature. Correlations between hide temperature and visible signs of heat stress are unclear and warrant further observation.

Sequential organization of birdsong: relationships with individual quality and fitness

Many vocalizing animals produce the discrete elements of their acoustic signals in a specific sequential order, but we know little about the biological relevance of this ordering. For that, we must characterize the degree by which individuals differ in how they organize their signals sequentially and relate these differences to variation in quality and fitness. In this study, we fulfilled these tasks in male collared flycatchers (Ficedula albicollis). We characterized the sequential order of syllables with a network analysis approach and studied the consistency of network variables on distinct time scales (within day, between days, and between years), and assessed their relationship with such quality indicators like age, body condition, arrival date, and fitness related proxies like survival to the next year and pairing success. We found that the syllables were associated nonrandomly with one another and both the frequency differences of consecutive syllables and the number of motif types were higher in the original than in randomized syllable sequences. Average degree and small-worldness showed considerable among-individual differences and decreasing repeatability with increasing time scale. Furthermore, we found relationships between male age and average degree among and within individuals. Accordingly, older males produce syllable sequences by using common syllables less often than younger individuals. However, the network variables showed no relationship with fitness-related variables. In conclusion, the sequential organization of birdsong has the potential to encode individual-specific characteristics, which thus could be used as signal in social interactions and thus potentially could be subject to sexual selection.