1,721,092 research outputs found
Fundamentals of Systematic Zoology
No full textTitle: Fundamentals of Systematic ZoologyAuthor: Md. Ataur Rahman KhanPublisher Zahirul Islam (Lipton), Aligarh Library, Rajshahi.March, 2010, Pp. 380.DOI: 10.3329/ujzru.v28i0.5295Univ. j. zool. Rajshahi Univ. Vol. 28, 2010 pp. 83</jats:p
FeCl3/AgOTf catalyzed hydroarylation reactions of aryl-substituted alkynes with different electron-rich arenes
No full textBN-HTRd: A Benchmark Dataset for Document Level Offline Bangla Handwritten Text Recognition (HTR)
No full textWe introduce a new dataset for offline Handwritten Text Recognition (HTR) from images of Bangla scripts comprising words, lines, and document-level annotations. The BN-HTRd dataset is based on the BBC Bangla News corpus - which acted as ground truth texts for the handwritings. Our dataset contains a total of 786 full-page images collected from 150 different writers. With a staggering 1,08,18 instances of handwritten words, distributed over 14,383 lines and 23,115 unique words, this is currently the 'largest and most comprehensive dataset' in this field. We also provided the bounding box annotations (YOLO format) for the segmentation of words/lines and the ground truth annotations for full-text, along with the segmented images and their positions. The contents of our dataset came from a diverse news category, and annotators of different ages, genders, and backgrounds, having variability in writing styles. The BN-HTRd dataset can be adopted as a basis for various handwriting classification tasks such as end-to-end document recognition, word-spotting, word/line segmentation, and so on. The statistics of the original dataset are given below:-------------------------------------------------Number of writers = 150Total number of images = 786Total number of lines = 14,383Total number of words = 1,08,18Total number of unique words = 23,115Total number of punctuation = 7,446Total number of characters = 5,74,203-------------------------------------------------# From v3.0, we are also providing automatic bounding box annotations (YOLO format) of 805 document images containing words/lines. The statistics of the automatic annotations are given below:-------------------------------------------------Number of writers = 87Total number of images = 805Total number of lines = 14,836Total number of words = 1,06,135------------------------------------------------
BanglaEmotion: A Benchmark Dataset for Bangla Textual Emotion Analysis
No full textWe present a manually annotated Bangla Emotion corpus, which incorporates the diversity of fine-grained emotion expressions in social-media text. We tried to consider more fine-grained emotion labels such as Sadness, Happiness, Disgust, Surprise, Fear and Anger - which are, according to Paul Ekman (1999), the six basic emotion categories. For this task, we collected a large amount of raw text data from the user’s comments on two different Facebook groups (Ekattor TV and Airport Magistrates) and from the public post of a popular blogger and activist Dr. Imran H Sarker. These comments are mostly reactions to ongoing socio-political issues and towards the economic success and failure of Bangladesh. We scrape a total of 32923 comments from the three sources aforementioned above. Out of these, a total of 6314 comments were annotated into the six categories. The distribution of the annotated corpus is as follows:
sad = 1341
happy = 1908
disgust = 703
surprise = 562
fear = 384
angry = 1416
We have also provided a balanced set from the above data and split the dataset into training and test set of equal ratio. We considered a proportion of 5:1 for training and evaluation purpose. More information on the dataset and the experiments on it could be found in our paper (related links below)
Iodoarylation of Arylalkynes with Molecular Iodine in the Presence of Hypervalent Iodine Reagents
No full textIodoarylation of arylacetylenes was performed using a simple reagent system composed of molecular iodine and [bis(benzoyloxy)iodo]benzene. Most arylacetylenes efficiently underwent the iodoarylation reaction with electron-rich arenes to give trans 1,1-diaryl-2-iodoethene adducts regio- and stereoselectively. As an exception, the iodoarylation of p-methoxyphenylacetylene resulted in a mixture of E- and Z-isomers of the corresponding product
promising therapeutic
No full textThe flying bat is proposed to be the primary, and pangolin is supposed to be the secondary host of SARS-CoV-2, according to phylogenetic analysis
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