We use quantitative news data generated by a large-scale natural language processing (NLP) news analysis system to perform a comprehensive study on how a company’s reported news frequency, sentiment polarity and subjectivity anticipates or reflects its stock trading volumes and financial returns. Our analysis provides concrete evidence that news data is highly informative, as previously suggest...

Natural language processing has attracted many researchers as the amount of information available on the internet and other media is increasing exponentially. So we need computer interference to process that enormous data.NLP does exactly the same by converting the natural language into something to be understood by computer to process. Though it has a lot of branches I am working in sentiment ...

pistachio oil has important nutritional and therapeutic properties because of high concentration of essential fatty acids. the extraction method used to obtain natural compounds from raw matter is critical for product quality and especially protection of nutrition value of them. the study was conducted to compare fatty acid composition of pistachio oil extracted by two conventional procedures: ...

First to give additional examples of dynamic morphology in order to familiarize the reader further with this way of working and perceiving, building upon the phenomenological approach as presented in an earlier chapter, where it was termed dynamic perception; Second to give the reader an experience of the kinds of insights which can be gained by looking for polarity in human and natural phenome...

S D C1 C2 Over the past few years there has been a surge of interest in graphene, a recently isolated [ 1 ] one-atom-thick layer of carbon atoms arranged in a honeycomb lattice. From the application point of view this interest has mainly been driven by the high carrier mobility of graphene [ 2–4 ] which enables fabrication of fi eld-effect transistors (FETs) with much smaller channel resistance...

A huge amount of online information, rich web resources are highly unstructured and such natural language are not solvable by machine directly. The increased demand to capture opinions of general public about social events, campaigns and sales of the product has led to study of the field opinion mining and sentiment analysis. Opinion refers to extraction of lines in raw data which expresses an ...

Many natural language processing tasks, including information extraction, question answering and recognizing textual entailment, require analysis of the polarity, focus of polarity, tense, aspect, mood and source of the event mentions in a text in addition to its predicateargument structure analysis. We refer to modality, polarity and other associated information as extended modality. In this p...

Mathematical chemistry is a branch of theoretical chemistry for discussion and prediction of the molecular structure using mathematical methods without necessarily referring to quantum mechanics. In theoretical chemistry, distance-based molecular structure descriptors are used for modeling physical, pharmacologic, biological and other properties of chemical compounds. The Wiener Polarity index ...

Three types of solvents with different polarity (cyclohexane, toluene and benzene), a nonionic surfactant Span 40 were used to prepare strontium aluminate (SrAl2O4) spinel nanoparticles by a reverse micelle method. The structure of SrAl2O4 nanoparticles was characterized by X-ray diffraction (XRD). The morphology and size of the synthesized materials were studied using field emission scanning e...

How animals, including mammals, can respond to and utilize the direction and intensity of the Earth's magnetic field for orientation and navigation is contentious. In this study, we experimentally tested whether the Chinese Noctule, Nyctalus plancyi (Vespertilionidae) can sense magnetic field strengths that were even lower than those of the present-day geomagnetic field. Such field strengths oc...