Basics of Online Web Research, Web Mining & Data Extraction Services

The evolution of the World Wide Web and Search engines has brought the abundant and ever growing pile of data and information on our finger tips. It has now become a popular and important resource for doing information research and analysis.

Today, Web research services are becoming more and more complicated. It involves various factors such as business intelligence and web interaction to deliver desired results.

Web Researchers can retrieve web data using search engines (keyword queries) or browsing specific web resources. However, these methods are not effective. Keyword search gives a large chunk of irrelevant data. Since each webpage contains several outbound links it is difficult to extract data by browsing too.

Web mining is classified into web content mining, web usage mining and web structure mining. Content mining focuses on the search and retrieval of information from web. Usage mining extract and analyzes user behavior. Structure mining deals with the structure of hyperlinks.

Web mining services can be divided into three subtasks:

Information Retrieval (IR): The purpose of this subtask is to automatically find all relevant information and filter out irrelevant ones. It uses various Search engines such as Google, Yahoo, MSN, etc and other resources to find the required information.

Generalization: The goal of this subtask is to explore users' interest using data extraction methods such as clustering and association rules. Since web data are dynamic and inaccurate, it is difficult to apply traditional data mining techniques directly on the raw data.

Data Validation (DV): It tries to uncover knowledge from the data provided by former tasks. Researcher can test various models, simulate them and finally validate given web information for consistency.

Should you have any queries regarding Web research or Data mining applications, please feel free to contact us. We would be pleased to answer each of your queries in detail.

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Web Data Extraction Services

Web Data Extraction from Dynamic Pages includes some of the services that may be acquired through outsourcing. It is possible to siphon information from proven websites through the use of Data Scrapping software. The information is applicable in many areas in business. It is possible to get such solutions as data collection, screen scrapping, email extractor and Web Data Mining services among others from companies providing websites such as Scrappingexpert.com.

Data mining is common as far as outsourcing business is concerned. Many companies are outsource data mining services and companies dealing with these services can earn a lot of money, especially in the growing business regarding outsourcing and general internet business. With web data extraction, you will pull data in a structured organized format. The source of the information will even be from an unstructured or semi-structured source.

In addition, it is possible to pull data which has originally been presented in a variety of formats including PDF, HTML, and test among others. The web data extraction service therefore, provides a diversity regarding the source of information. Large scale organizations have used data extraction services where they get large amounts of data on a daily basis. It is possible for you to get high accuracy of information in an efficient manner and it is also affordable.

Web data extraction services are important when it comes to collection of data and web-based information on the internet. Data collection services are very important as far as consumer research is concerned. Research is turning out to be a very vital thing among companies today. There is need for companies to adopt various strategies that will lead to fast means of data extraction, efficient extraction of data, as well as use of organized formats and flexibility.

In addition, people will prefer software that provides flexibility as far as application is concerned. In addition, there is software that can be customized according to the needs of customers, and these will play an important role in fulfilling diverse customer needs. Companies selling the particular software therefore, need to provide such features that provide excellent customer experience.

It is possible for companies to extract emails and other communications from certain sources as far as they are valid email messages. This will be done without incurring any duplicates. You will extract emails and messages from a variety of formats for the web pages, including HTML files, text files and other formats. It is possible to carry these services in a fast reliable and in an optimal output and hence, the software providing such capability is in high demand. It can help businesses and companies quickly search contacts for the people to be sent email messages.

It is also possible to use software to sort large amount of data and extract information, in an activity termed as data mining. This way, the company will realize reduced costs and saving of time and increasing return on investment. In this practice, the company will carry out Meta data extraction, scanning data, and others as well.

Source: http://ezinearticles.com/?Web-Data-Extraction-Services&id=4733722

What Is ISL Uranium Mining

In situ leach mining (ISL), also known as in-situ mining or solution mining, was first used as a means to extract low grades of uranium from ore in underground mines. First used in Wyoming in the 1950s, originally as a low production experiment at the Lucky June mine, it became a high-production, low cost method of fulfilling Atomic Energy Commission uranium requirements at Utah Construction Company's Shirley Basin mining operations in the 1960s. Pioneered through the efforts of Charles Don Snow, a uranium mining and exploration geologist employed by Utah, many of his developments are still used today in ISL mining.

What is ISL mining? According to the Wyoming Mining Association website, ISL mining is explained in the following manner. (We choose Wyoming because it is the birthplace of "solution mining" as it was originally called.)

"In-situ mining is a noninvasive, environmentally friendly mining process involving minimal surface disturbance which extracts uranium from porous sandstone aquifers by reversing the natural processes which deposited the uranium.

To be mined in situ, the uranium deposit must occur in permeable sandstone aquifers. These sandstone aquifers provide the "plumbing system" for both the original emplacement and the recovery of the uranium. The uranium was emplaced by weakly oxidizing ground water which moved through the plumbing systems of the geologic formation. To effectively extract uranium deposited from ground water, a company must first thoroughly define this plumbing system and then designs well fields that best fit the natural hydro-geological conditions.

Detailed mapping techniques, using geophysical data from standard logging tools, have been developed by uranium companies. These innovative mapping methods define the geologic controls of the original solutions, so that these same routes can be retraced for effective in situ leaching of the ore. Once the geometry of the ore bodies is known, the locations of injection and recovery wells are planned to effectively contact the uranium. This technique has been used in several thousand wells covering hundreds of acres.

Following the installation of the well field, a leaching solution (or lixiviant), consisting of native ground water containing dissolved oxygen and carbon dioxide, is delivered to the uranium-bearing strata through the injection wells. Once in contact with the mineralization, the lixiviant oxidizes the uranium minerals, which allows the uranium to dissolve in the ground water. Production wells, located between the injection wells, intercept the pregnant lixiviant and pump it to the surface. A centralized ion-exchange facility extracts the uranium from the barren lixiviant, stripped of uranium, is regenerated with oxygen and carbon dioxide and recirculated for continued leaching. The ion exchange resin, which becomes 'loaded' with uranium, it is stripped or eluted. Once eluted, the ion exchange resin is returned to the well field facility.

During the mining process, slightly more water is produced from the ore-bearing formation than is reinjected. This net withdrawal, or 'bleed,' produces a cone of depression in the mining area, controlling fluid flow and confining it to the mining zone. The mined aquifer is surrounded, both laterally and above and below, by monitor wells which are frequently sampled to ensure that all mining fluids are retained within the mining zone. The 'bleed' also provides a chemical bleed on the aquifer to limit the buildup of species like sulfate and chloride which are affected by the leaching process. The 'bleed' water is treated for removal of uranium and radium. This treated water is then disposed of through waste water land application, or irrigation. A very small volume of radioactive sludge results; this sludge is disposed of at an NRC licensed uranium tailings facility.

The ion exchange resin is stripped of its uranium, and the resulting rich eluate is precipitated to produce a yellow cake slurry. This slurry is dewatered and dried to a final drummed uranium concentrate.

At the conclusion of the leaching process in a well field area, the same injection and production wells and surface facilities are used for restoration of the affected ground water. Ground water restoration is accomplished in three ways. First, the water in the leach zone is removed by "ground water sweep", and native ground water flows in to replace the removed contaminated water. The water which is removed is again treated to remove radionuclides and disposed of in irrigation. Second, the water which is removed is processed to purify it, typically with reverse osmosis, and the pure water is injected into the affected aquifer. This reinjection of very pure water results in a large increment of water quality improvement in a short time period. Third, the soluble metal ions which resulted from the oxidation of the ore zone are chemically immobilized by injecting a reducing chemical into the ore zone, immobilizing these constituents in situ. Ground water restoration is continued until the affected water is suit
able for its pre-mining use.

Throughout the leaching and restoration processes, a company ensures the isolation of the leach zone by careful well placement and construction. The well fields are extensively monitored to prevent the contamination of other aquifers.

Once mining is complete, the aquifer is restored by pumping fresh water through the aquifer until the ground water meets the pre-mining use.

In situ mining has several advantages over conventional mining. First, the environmental impact is minimal, as the affected water is restored at the conclusion of mining. Second, it is lower cost, allowing Wyoming's low grade deposits to compete globally with the very high grade deposits of Canada. Finally the method is safe and proven, resulting in minimal employee exposure to health risks."

ISL mining may be the wave of the future of U.S. uranium mining, or it may become an interim mining measure, in areas where the geology is appropriate for IS. Until sufficient quantities of uranium are required by U.S. utilities to fuel the country's demand for nuclear energy, ISL mining may remain the leading uranium mining method in the United States. At some point, an overwhelming need for uranium for the nuclear fuel cycle may again put ISL mining in the backseat, and uranium miners may return to conventional mining methods, such as open pit mining.

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Metallurgist Roles in Mining Companies

Mining of metals and minerals is a growth industry, especially in Africa, providing job opportunities for metallurgists to work in various roles. Positions are well paid as metallurgists are required to have at least one degree from an accredited university or college. The preferred qualifications are a Bachelors Degree in Extractive Metallurgy or Metallurgical Engineering or BSc. in Chemical Engineering with a major in Mineral Processing. This is not a profession where candidates can learn the required skills on the job although experience can be gained throughout their career by expanding their exposure to different types of work on mines.

The type of work they do

The most common metallurgist roles include project management, consulting, technical or site management and research. For example, on a mine he/she would be expected to:

•    Design work programs and manage all metallurgical testing both in-house and with external service providers and laboratories

•    Work with the senior team to review and evaluate technical solutions

•    Liaise with geologists and other technical personnel to ensure the most suitable metallurgical solution is understood and employed

•    Constantly re-evaluate the metallurgical performance

At middle management level, as a project manager they would coordinate day-to-day mining activities, manage quality assurance and generally ensure a smooth operation. Mining companies look for a minimum of 5 years experience before they post these types of managers to remotely located mines. At the most senior level metallurgists can become mine managers which includes coordinating all operations, staffing, running the site itself, selecting the extraction process, and resolving operational and business issues.

Furthering a career

Metallurgists with further education and extensive experience in many technical processes become professional consultants or researchers either working directly for a large mining company or for a consulting firm contracted to it. Their role may be to advise clients on process engineering, to perform cost analyses or do budgeting. They may get involved in environmental impact assessments, HSEQ and social responsibility as well. The mining industry is constantly updating its methods of extraction and waste management in order to stay profitable and needs researchers to continue to explore new methods and processes. Pay levels vary depending on work experience, area of expertise and the location where they are posted.

Some of the personal attributes required to be successful in this field are to be an effective team player, have a high level of inter-personal communication skills and be able to express yourself in writing. A good knowledge of French is often asked for when an African posting is offered. Because of inhospitable locations and remoteness of mines, most of the postings attract single people or more mature staff who do not have school-going children.

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CSR in the Extraction Sector

A study commissioned by the Canadian Mining industry found that Canadian mining companies were involved in 4 times as many mining "incidents" as companies from other countries. The study was intended for internal consumption only but has been leaked to the press recently. The study found that Canadian mining companies were involved in nearly two thirds of the 171 "high profile" environmental and human rights violations it studied occurring between 1999 and 2009. Members of the mining industry pointed out that the occurrences are in proportion to their representation on the global mining scene, indicating that they were no better or worse than companies from other countries.

First some background on the study. The study findings were captured in a report titled "Corporate Social Responsibility & the Canadian International Extractive Sector: A Survey". The report was prepared for the Prospectors and Developers Association of Canada (PDAC) by the Canadian Centre for the Study of Resource Conflict (CCSRC). The purpose of the study was to measure the level of Corporate Social Responsibility (CSR) in the "extractive" sector. The extractive sector, for those of us untutored in the terminology means exploration, gas, oil, and mining companies. The document leaked to the press was a first draft of the report, not the final draft. I should also mention that there is a bill, C-300, before the Canadian parliament which would make financing for foreign ventures contingent on meeting federally defined CSR standards. The exploration, gas, oil, and mining companies, and the organizations which represent them are very much against this bill. Leaking the negative aspects of this report was fortuitous for those in support of bill C-300 and disastrous for those opposed to it.

One of the observations the report makes is that adoption of formal CSR policies by companies with international interests is "remarkably low", but that those companies which have adopted CSR policies have experienced positive outcomes. The CCSRC contacted 584 companies which they felt met their criteria to participate in the study. Of those, 202 chose to participate. The first survey question was "Do you have a CSR policy or Code of International Business Conduct?" 56 of the 202 companies had documented policies in place. The study broke the 202 companies they surveyed into "junior" and "major" companies. 50% of the companies designated as major had documented CSR policies while only 21% of junior companies had one.

The survey also asked about the positive effects of a CSR policy. 24% of respondents claimed a reduction in conflicts or complications, 62% claimed better community relations (relations with the communities they were doing business in), and 25% reported increased shareholder interest. On the downside, 24% reported increased administration costs and 25% reported increased operating costs. One question they failed to ask was whether the benefits outweighed the costs.

The information I've stated in the preceding 2 paragraphs was gleaned from the final draft of the report. I don't have access to the first draft but apparently it described some of the 171 violations they were addressing in the study. I reported on one such violation in Project Management Tips section of this web site under the title "CSR Problems". The incidents reported on reflect the difficulty faced by companies who conduct business in some international locations. These incidents juxtapose our Canadian values and ethics with those of the countries our exploration, gas, mining, and oil companies do business in. One incident reported on, and attributed to the mining company's lack of CSR by the media, pitted one host community against another with the resulting violence blamed on the Canadian mining company. I'm not suggesting here that these companies have not made mistakes in the past, or that improvements cannot be made in their CSR efforts, I am suggesting that we should have realistic expectations about the effectiveness of a CSR policy to prevent any problems in a foreign venture.

A reasonable expectation in some cases would be that the company have a documented CSR policy which conforms to the standards and ethics of this country (Canada), abides by the laws of the host country, and conforms to the standards and ethics of the host country. The expectation should be tempered with the acknowledgment that the operating environment these companies encounter in host countries can be radically different than that found here. For example, when one community is in conflict with another over whether a mining operation should take place, we tend to look to non-violent forms of dispute resolution where some countries may resort to extreme violence to settle the dispute. Canadian companies frequently hire locals as security guards to protect their property as local authorities cannot perform this duty for one reason or another. It is reasonable to expect the hiring company to do its due diligence in hiring these people to ensure they don't create a threat to the surrounding community. It is not reasonable to expect that there will be no conflicts arising out of these situations. Where it is suspected that a security guard overstepped their authority, or engaged in illegal behaviour, it is reasonable to expect the employer to cooperate with the local authorities in the investigation.

North American companies doing business internationally have long had to deal with conflicts between acceptable corporate behaviour in their own country and acceptable behaviour in the host country. Bribery is the classic example. There are countries where bribery is not only accepted but essential to conducting business. Our laws will convict anyone proved to have offered a bribe but failure to pay the bribe may result in a failure to perform on the part of the North American company. Failure to perform might result in the loss of all or part of the company's investment in the project. Holding a company to this type of double standard can only result in one of 2 outcomes: the company will break the rule against bribery, or the company will cease to do business in that host country.

Since this web site is aimed at the project management community, let's draw some conclusions from the survey and CSR in general that may help project managers. The first conclusion I would draw from all of the above is that the CSR policy that governs your project must describe achievable goals. By this I mean that the goals, objectives, and standards stated in the policy must be within the project's power to achieve, or comply with. The second conclusion is that the right CSR policy carefully implemented can provide a business benefit to the organization. It is the project manager's job to ensure that those benefits are realized.

The goals and objectives of the project must include goals and objectives in support of the CSR policy. Those goals and objectives should be spelled out in the Project Charter and the connection between those goals and objectives and the CSR policy clearly defined. Make sure that the CSR related goals and objectives you set for the project are clearly defined, measurable, and obtainable and then agree with your stakeholders on the conditions that will indicate the goals have been met. Check for CSR policy goals and objectives that might conflict with each other and any of your project's goals and objectives, both CSR related and non-CSR. Goals and objectives you feel might conflict with each other, or with the CSR policy should be resolved by senior management. Start your escalation by drawing the project sponsor's attention to the conflict and ask for their help with resolution.

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The Coal Mining Industry And Investing In It

The History Of Coal Usage

Coal was initially used as a domestic fuel, until the industrial revolution, when coal became an integral part of manufacturing for creating electricity, transportation, heating and molding purposes. The large scale mining aspect of coal was introduced around the 18th century, and Britain was the first nation to successfully use advanced coal mining techniques, which involved underground excavation and mining.

Initially coal was scraped off the surface by different processes like drift and shaft mining. This has been done for centuries, and since the demand was quite low, these mining processes were more than enough to accommodate the demand in the market.

However, when the practical uses of using coal as fuel sparked industrial revolution, the demand for coal rose abruptly, leading to severe shortage of the coal output, gradually paving the way for new ways to extract coal from under the ground.

Coal became a popular fuel for all purposes, even to this day, due to their abundance and their ability to produce more energy per mass than other conventional solid fuels like wood. This was important as far as transportation, creating electricity and manufacturing processes are concerned, which allowed industries to use up less space and increase productivity. The usage of coal started to dwindle once alternate energies such as oil and gas began to be used in almost all processes, however, coal is still a primary fuel source for manufacturing processes to this day.

The Process Of Coal Mining

Extracting coal is a difficult and complex process. Coal is a natural resource, a fossil fuel that is a result of millions of years of decay of plants and living organisms under the ground. Some can be found on the surface, while other coal deposits are found deep underground.

Coal mining or extraction comes broadly in two different processes, surface mining, and deep excavation. The method of excavation depends on a number of different factors, such as the depth of the coal deposit below the ground, geological factors such as soil composition, topography, climate, available local resources, etc.

Surface mining is used to scrape off coal that is available on the surface, or just a few feet underground. This can even include mountains of coal deposit, which is extracted by using explosives and blowing up the mountains, later collecting the fragmented coal and process them.

Deep underground mining makes use of underground tunnels, which is built, or dug through, to reach the center of the coal deposit, from where the coal is dug out and brought to the surface by coal workers. This is perhaps the most dangerous excavation procedure, where the lives of all the miners are constantly at a risk.

Investing In Coal

Investing in coal is a safe bet. There are still large reserves of coal deposits around the world, and due to the popularity, coal will be continued to be used as fuel for manufacturing process. Every piece of investment you make in any sort of industry or a manufacturing process ultimately depends on the amount of output the industry can deliver, which is dependent on the usage of any form of fuel, and in most cases, coal.

One might argue that coal usage leads to pollution and lower standards of hygiene for coal workers. This was arguably true in former years; however, newer coal mining companies are taking steps to assure that the environmental aspects of coal mining and usage are kept minimized, all the while providing better working environment and benefits package for their workers. If you can find a mining company that promises all these, and the one that also works within the law, you can be assured safety for your investments in coal.

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Data Mining vs Screen-Scraping

Data mining isn't screen-scraping. I know that some people in the room may disagree with that statement, but they're actually two almost completely different concepts.

In a nutshell, you might state it this way: screen-scraping allows you to get information, where data mining allows you to analyze information. That's a pretty big simplification, so I'll elaborate a bit.

The term "screen-scraping" comes from the old mainframe terminal days where people worked on computers with green and black screens containing only text. Screen-scraping was used to extract characters from the screens so that they could be analyzed. Fast-forwarding to the web world of today, screen-scraping now most commonly refers to extracting information from web sites. That is, computer programs can "crawl" or "spider" through web sites, pulling out data. People often do this to build things like comparison shopping engines, archive web pages, or simply download text to a spreadsheet so that it can be filtered and analyzed.

Data mining, on the other hand, is defined by Wikipedia as the "practice of automatically searching large stores of data for patterns." In other words, you already have the data, and you're now analyzing it to learn useful things about it. Data mining often involves lots of complex algorithms based on statistical methods. It has nothing to do with how you got the data in the first place. In data mining you only care about analyzing what's already there.

The difficulty is that people who don't know the term "screen-scraping" will try Googling for anything that resembles it. We include a number of these terms on our web site to help such folks; for example, we created pages entitled Text Data Mining, Automated Data Collection, Web Site Data Extraction, and even Web Site Ripper (I suppose "scraping" is sort of like "ripping"). So it presents a bit of a problem-we don't necessarily want to perpetuate a misconception (i.e., screen-scraping = data mining), but we also have to use terminology that people will actually use.

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Commercial Kitchen Ventilation and Extraction - What You Need to Know

There are a number of things to consider when installing commercial kitchen ventilation and there are several different types of systems available - but all must comply with the "Standard for kitchen ventilation systems DW172". A commercial kitchen cannot operate effectively without a properly designed and functioning ventilation system. Getting the design of the correct system for YOUR premises can be complex. All systems are operation and site specific - how you move the air, where you move it to and what you have to do with it to ensure compliance not only with the relevant legislation, but also any local building and environmental constraints.

The factors that may need to be addressed include not only physically moving the air, but heat, humidity, smoke, fire, grease and odour. There are various filter and safety systems available that deal with any or all of these issues and the best system for you will depend on your site, its surroundings and your budget. You may also have to deal with noise from the fan(s) and any planning issues relating to external ducting.

In basic terms a ventilation system comprises a canopy over the production area with a fan linked by ducting to a filter bank within the kitchen extraction canopy which draws the air out to the external exhaust point. The fan is sized in direct relation to the amount of air that has to be moved, where it has to be moved to (the exhaust point) and how quickly (depending on the type of food being cooked).

In addition, mechanical provision must be made to replace 85% of the air that is being extracted. This is called "Make up Air", the other 15% is made up by natural means - general kitchen areas and windows etc.

Within the design, careful consideration must also be given to ensure adequate access for cleaning of the duct and servicing of the fans.

If the production equipment is gas, in accordance with British Standard (BS6173) you will have to fit a Gas Interlock system. This system automatically shuts off the gas supply to the cooking equipment in the event of a failure in the ventilation system.

You may also want to consider the installation of a Heat Recovery unit which reclaims the heat (and some of the fuel cost) from your kitchen that would normally be blasted straight out through from your extracton canopy.

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