Linear Progressive Coding for Semantic Communication using Deep Neural Networks

We propose a general method for semantic representation of images and other data using progressive coding. Semantic coding allows for specific pieces of information to be selectively encoded into a set of measurements that can be highly compressed compared to the size of the original raw data. We consider a hierarchical method of coding where a partial amount of semantic information is first encoded a into a coarse representation of the data, which is then refined by additional encodings that add additional semantic information. Such hierarchical coding is especially well-suited for semantic communication i.e. transferring semantic information over noisy channels. Our proposed method can be considered as a generalization of both progressive image compression and source coding for semantic communication. We present results from experiments on the MNIST and CIFAR-10 datasets that show that progressive semantic coding can provide timely previews of semantic information with a small number of initial measurements while achieving overall accuracy and efficiency comparable to non-progressive methods

Optic Neuropathy in Two Brothers with Fasciogenital Dysplasia (Aarskog-Scott Syndrome)

Aarskog-Scott disease (A-S) is an x-linked disorder featuring hypertelorism, ligamentous laxity, shawl scrotum, and anteverted nostrils. Described ocular findings include ptosis, ophthalmoplegia, strabismus and hyperopic astigmatism. We describe a new finding, optic neuropathy, in two brothers

Proptosis in a Young Man

Left peri-orbital swelling; DiplopiaA 19-year old male with left peri-orbital swelling and diplopia. Previous history significant for lymphadenopathy.VA: 20/20 OUCT; MRISmall blue cell lesions associated with mitosesAntineoplastic agents; XRT1. Perez-Ordonez B et al. Small cell neuroendocrine carcinoma of the nasal cavity and paranasal sinuses. Hum Pathol 1998 29(8); 826-3. 2. Rootman J, Quenville N, Owen D. Recent advances in pathology as applied to orbital biopsy. Practical considerations. Ophthalmol 1984 91(6); 708-18

A Definite Maybe

73 yo man French-Canadian presented to our institution for another opinion for a long standing diagnosis of Oculopharyngeal Dystrophy given at an outside institution. 17 years ago, the patient developed unfluctuating double vision that progressed to include severe, unfluctuating ptosis and mild dysphagia without involvement of the extremities or trunk. EMG at that time showed myopathy with mild involvement of the limbs and more significant involvement of the muscles of the eye and face. Prior testing was negative for acetylcholine receptor and MUSK antibodies. No other family member is affected. He denied any significant variability in his symptoms and thought it might be secondary to Agent Orange exposure. Examination showed normal vision and color vision, normally reactive pupils without an APD, and normal looking optic nerves and retina. He had severe ptosis requiring taping his eyelids up and severe limitation of eye movement in all fields of gaze. With the limited eye movements and use of prism, he was noted to be orthophoric at distance and and a 6PD exotropia at near

A Definite Maybe

73 yo man French-Canadian presented to our institution for another opinion for a long standing diagnosis of Oculopharyngeal Dystrophy given at an outside institution. 17 years ago, the patient developed unfluctuating double vision that progressed to include severe, unfluctuating ptosis and mild dysphagia without involvement of the extremities or trunk. EMG at that time showed myopathy with mild involvement of the limbs and more significant involvement of the muscles of the eye and face. Prior testing was negative for acetylcholine receptor and MUSK antibodies. No other family member is affected. He denied any significant variability in his symptoms and thought it might be secondary to Agent Orange exposure. Examination showed normal vision and color vision, normally reactive pupils without an APD, and normal looking optic nerves and retina. He had severe ptosis requiring taping his eyelids up and severe limitation of eye movement in all fields of gaze. With the limited eye movements and use of prism, he was noted to be orthophoric at distance and and a 6PD exotropia at near