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Sunday, 25 February 2018

The “handedness” of language: Directional symmetry breaking of sign usage in words

Md. Izhar Ashraf , Sitabhra Sinha  
Published: January 17, 2018

Language, which allows complex ideas to be communicated through symbolic sequences, is a characteristic feature of our species and manifested in a multitude of forms. Using large written corpora for many different languages and scripts, we show that the occurrence probability distributions of signs at the left and right ends of words have a distinct heterogeneous nature. Characterizing this asymmetry using quantitative inequality measures, viz. information entropy and the Gini index, we show that the beginning of a word is less restrictive in sign usage than the end. This property is not simply attributable to the use of common affixes as it is seen even when only word roots are considered. We use the existence of this asymmetry to infer the direction of writing in undeciphered inscriptions that agrees with the archaeological evidence. Unlike traditional investigations of phonotactic constraints which focus on language-specific patterns, our study reveals a property valid across languages and writing systems. As both language and writing are unique aspects of our species, this universal signature may reflect an innate feature of the human cognitive phenomenon.

From the paper :

 We have used a database where the relatively few sequences which are believed to have been written from left to right have been reversed so as to be oriented in the same direction as the majority, following standard procedure used for constructing concordances for Indus Valley Civilization inscriptions. We observe from Fig 3 that the ΔG for sign usage distribution is positive, indicating that the choice of signs is less restricted in the right terminal position than the left. This would suggest, based on the connection previously seen between the sign of ΔG and the direction of writing, that the IVC inscriptions are written from right-to-left, which corroborates the consensus view as mentioned above.

Wednesday, 21 February 2018

Archaeological and anthropological studies on the Harappan cemetery of Rakhigarhi, India

Vasant S. Shinde  , Yong Jun Kim , Eun Jin Woo , Nilesh Jadhav , Pranjali Waghmare, Yogesh Yadav, Avradeep Munshi, Malavika Chatterjee, Amrithavalli Panyam, Jong Ha Hong, Chang Seok Oh, Dong Hoon Shin 
Published: February 21, 2018

An insufficient number of archaeological surveys has been carried out to date on Harappan Civilization cemeteries. One case in point is the necropolis at Rakhigarhi site (Haryana, India), one of the largest cities of the Harappan Civilization, where most burials within the cemetery remained uninvestigated. Over the course of the past three seasons (2013 to 2016), we therefore conducted excavations in an attempt to remedy this data shortfall. In brief, we found different kinds of graves co-existing within the Rakhigarhi cemetery in varying proportions. Primary interment was most common, followed by the use of secondary, symbolic, and unused (empty) graves. Within the first category, the atypical burials appear to have been elaborately prepared. Prone-positioned internments also attracted our attention. Since those individuals are not likely to have been social deviants, it is necessary to reconsider our pre-conceptions about such prone-position burials in archaeology, at least in the context of the Harappan Civilization. The data presented in this report, albeit insufficient to provide a complete understanding of Harappan Civilization cemeteries, nevertheless does present new and significant information on the mortuary practices and anthropological features at that time. Indeed, the range of different kinds of burials at the Rakhigarhi cemetery do appear indicative of the differences in mortuary rituals seen within Harappan societies, therefore providing a vivid glimpse of how these people respected their dead.
Yog .