Reuters News Research Articles

Information arrivals and intraday exchange rate volatility

This paper investigates the link between information arrivals and intraday DEM/$ volatility. Information arrivals are measured by the numbers of news items that appeared in the Reuters News Service. We separate news stories into different categories and find that total headline news counts, US and German macroeconomic news and German Bundesbank monetary policy news all have a significant impact on intraday DEM/$ volatility. The larger quantitative effects of the German Bundesbank monetary policy news and US macroeconomic news at 15-min intervals are consistent with the findings of a two-stage adjustment process of public information arrivals [Fleming and Remolona, J. Finance (1999) 1901]. Our results suggest that the persistent of intraday exchange rate volatility set off by public information is extended by traders’ private information about 15 min later. The conclusions are obtained from ARCH models that incorporate intraday seasonal volatility terms.

Symbolic state transducers and recurrent neural preference machines for text mining

This paper focuses on symbolic transducers and recurrent neural preference machines to support the task of mining and classifying textual information. These encoding symbolic transducers and learning neural preference machines can be seen as independent agents, each one tackling the same task in a different manner. Systems combining such machines can potentially be more robust as the strengths and weaknesses of the different approaches yield complementary knowledge, wherein each machine models the same information content via different paradigms. An experimental analysis of the performance of these symbolic transducer and neural preference machines is presented. It is demonstrated that each approach can be successfully used for information mining and news classification using the Reuters news corpus. Symbolic transducer machines can be used to manually encode relevant knowledge quickly in a data-driven approach with no training, while trained neural preference machines can give better performance based on additional training.

Information Arrivals and Intraday Exchange Rate Volatility

This paper investigates the link between information arrivals and intraday DEM/$ volatility. Information arrivals are measured by the numbers of news items that appeared in the Reuters News Service. We separate news stories into different categories and find that total headline news counts have the most significant impact on DEM/$ volatility, following by US macroeconomic news. News related to the US Federal Reserve, German Bundesbank and German macroeconomic variables appears to have little impact during the sample period. The conclusions are obtained from ARCH models that incorporate intraday seasonal volatility terms.

Ailing Russian Scientist Jailed

As chair of the Committee on the International Freedom of Scientists of the American Physical Society, I am writing to alert our community to the situation of a fellow physicist in Krasnoyarsk, Russia. CIFS is charged by APS with monitoring the rights of physicists and other scientists around the world.Recently, CIFS learned that Valentin Danilov, head of the Thermo-Physics Center at Krasnoyarsk State Technical University, had been arrested and incarcerated in February and charged in April with selling state secrets to a Chinese company. According to quotes from Russia’s Federal Security Service in a Reuters news article, Danilov’s relations with this company have “allowed foreign countries to significantly cut the amount of time and money spent on the development and creation of spacecraft.”Danilov was, in fact, the signatory for a legal contract between Krasnoyarsk State Technical University and the Chinese company to create a model to predict the effect of the electromagnetic environment on satellites. Danilov has done significant research in this area, and this work was declassified by the Russian government in 1992. Researchers in the US and Russia with whom Danilov has collaborated indicate that the information provided under this contract has for years been readily available in the scientific literature, including meeting abstracts and materials published by APS. It is difficult for CIFS to understand how Dr. Danilov could be accused of disclosing “state secrets” when our Chinese colleagues have had access to the same information for almost a decade through publicly available scientific literature.In an attempt to verify these accounts and to inform authorities of Danilov’s deteriorating health (he suffers from hypertension), both CIFS and APS President George Trilling wrote to President Vladimir Putin. CIFS also has sent inquiries to the mayor of Krasnoyarsk and the governor of Krasnoyarsk region. To date, no response has been received to any of these inquiries. Suggestions and help from the physics community for immediately resolving this urgent and troubling case are welcome. They may be sent to me at the e-mail address below; I will bring all such correspondence to the attention of the members of CIFS.Danilov was admitted to the hospital in mid-June after suffering a heart attack. It is reported that he is chained to the bed. This information has been verified by Danilov’s attorney and his wife.© 2001 American Institute of Physics.

American Botanical Council Corrects Inaccurate Media Stories: Herbal Supplements Do Not Contain Animal Tissue

A July 30 Reuters News Service story wrongly implies that herbal supplements contain animal tissue. A letter to the editor, published in the July 27th issue of the New England Journal of Medicine, and the resulting media coverage incorrectly refer to dietary supplements that contain animal tissue as "herbal," according to the independent herb science group American Botanical Council (ABC). 1

Chemical incident planning: a review of the literature

Chemical incidents cause problems for Accident and Emergency (A & E) departments which are different from those recognized in other major accidents. As well as possible trauma there is the added problem of contamination. A > E departments must be prepared for chemical disasters with a chemical incident plan, decontamination facilities and protective clothing for all staff involved. The plan should include how to protect the hospital from contamination and how to prevent its personnel from becoming secondary casualties. The results of a survey into the preparedness of inner London A & E departments were published in issue 6.2 of this journal, April 1998. On 20 March, 1995 a religious cult released a nerve gas (sarin) into the Tokyo subway system. More than 5500 people needed hospital treatment and 11 people died (Reuter News Service, 22 March, 1995). The hospitals were overwhelmed with casualties. Once chemical exposure of victims was suspected, clothing was removed and patients were showered. Stretcher patients were decontaminated by means of bed bathing and a change of bedclothes (Okumura et al 1996). Hospital contamination was a problem during this incident due to the delay in recognising chemical exposure. This resulted in staff contamination. Many lessons were learned from this disaster, including the need to be prepared for all eventualities. If a similar incident occurred in the London Underground system, it would be catastrophic. Underground staff, police, fire fighters, ambulance staff and the general public could all be contaminated before the chemical was identified. There could be mass casualties, including personnel in the emergency services. How would London A & E departments cope, faced with a chemical disaster such as this?

Public Information Arrival

ABSTRACTWe develop a measure of public information flow to financial markets and use it to document the patterns of information arrival, with an emphasis on the intraday flows. The measure is the number of news releases by Reuter's News Service per unit of time. We find that public information arrival is nonconstant, displaying seasonalities and distinct intraday patterns. Next we relate our measure of public information to aggregate measures of intraday market activity. Our results suggest a positive, moderate relationship between public information and trading volume, but an insignificant relationship with price volatility.

Public Information Arrival

We develop a measure of public information flow to financial markets and use it to document the patterns of information arrival, with an emphasis on the intraday flows. The measure is the number of news releases by Reuter's News Service per unit of time. We find that public information arrival is nonconstant, displaying seasonalities and distinct intraday patterns. Next we relate our measure of public information to aggregate measures of intraday market activity. Our results suggest a positive, moderate relationship between public information and trading volume, but an insignificant relationship with price volatility.

Comparing vector space retrieval with the RUBRIC expert system

RUBRIC is an expert system for full-text information retrieval. The underlying model for RUBRIC's information retrieval process is based upon fuzzy set theory. The RUBRIC developers have compared RUBRIC to the boolean retrieval model, which it subsumes. This study compares RUBRIC to the Vector Space Model for information retrieval, using RUBRIC's own test collection of thirty news articles from the Reuters News Service and their test search for articles which satisfy the information need to find out about "violent acts of terrorism." Results indicate that the vector space model is comparable to RUBRIC for relevant documents, while RUBRIC performs better at retrieving marginally relevant documents.

Special issue on parallelism

The articles presented in our Special Issue on parallel processing on the supercomputing scale reflect, to some extent, splits in the community developing these machines. There are several schools ...

The New Africans: A guide to the Contemporary History of Emergent Africa and its Leaders

The New Africans: A guide to the Contemporary History of Emergent Africa and its Leaders Get access The New Africans: A guide to the Contemporary History of Emergent Africa and its Leaders. Ed. by Sidney Taylor. London: Paul Hamlyn. 1967. 504 pp. Index. (Written by Fifty Correspondents of Reuters News Agency.) 45s. International Affairs, Volume 44, Issue 1, January 1968, Page 175, https://doi.org/10.1093/ia/44.1.175d Published: 01 January 1968