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jueves, 24 de enero de 2013 | 0 comentarios

Humble Opinions Again in January 2013

We have seen the state of the art, there two possible directions
That research in coreference resolution Should follow are the use of more expres-
sive than mention-pairs models to manage the problem, Such as entity-mention,
and the incorporation of new information, Such as world knowledge and discourse coherence. In some cases, This Information can not be Expressed in terms of pairs of mentions. That is, it is information That Involves several mentions Either partial or entities at once. THEREFORE, an experimental approach In This Requires the expressiveness of the combined entity-mention model With The MOST typical features of the mention-pair model.
we dened an approach based on constraint satisfaction That
Represented the problem in a hypergraph and solved it by relaxation labeling,
Reducing coreference resolution to a hypergraph partitioning problem under a set of constraints. Our approach managed mention-pair and entity-mention models at the same time, and was Able to enter new information by adding as many
Necessary as constraints. Furthermore, our approach overcame the Weaknesses of previous Approaches in state-of-the-art systems, Such as linking Contradictions, classications without context, and A Lack of information in Evaluating pairs.
The system Developed, RelaxCor,'ve Achieved state-of-the-art results using only the mention-pair model without new knowledge. Moreover, Experiments with the entity-mention model Showed how the system Is Able to enter knowledge in a constructive way.
In Addition, as Explained in Section, We Have Proposed a method based on the clustering of all positive examples in Which examples are included, while the negative examples similar to the positive MOST ones are kept and the rest are discarded. This method you reduce the number of negative examples positive without losing any information.
Regarding the feature selection function, many works just manually select the MOST informative feature functions and discard the noisy ones. Few Researchers have incorporated an automatic feature selection function process.
We have made a small contribution in This Area by Selecting feature functions through to Hill Climbing process.
The other Contributions include techniques for performance
Such as balance optimization, pruning, and reordering. The balance parameter used was the optimal point tond Between Precision and recall, the pruning process while the computational cost and Reduced Avoids the system performance being dependent on the size of the documents. Were Both techniques included in the development process Facilitated That the optimization of the system for a target measure. The reordering process performance improved by Reducing the number of possible labels Assigned To The Most informative mentions, Which Caused The Most Reliable coreferential relations to be resolved rst.
Experiments to add world knowledge in order Were performed to Improve the coreference resolution performance. Although These experiments did not last Achieve a signicant improvement, the reason Seems to be more related to the type and source of information and its extraction than the approach used
to Incorporate it.
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viernes, 21 de diciembre de 2012 | 0 comentarios

The importance of interaction analysis in CSCL

We know that these collaborative learning environments are characterized by a high degree of interaction with the system user, thereby generating a lot of action events. The action event management is a key issue in applications, since, on the one hand, the analysis of data obtained recogidosu real life online, collaborative learning situations also help important issues in the functioning of the group and collaborative learning process should be further understood that this can guide both the design workspace more functional and software components, as well the development of improved facilities such as awareness, feedback, monitoring space work, evaluation and monitoring of the work of the group by a coordinator, tutor, etc.. Indeed, data filtering, proper management of events allows the establishment of a list of parameters that can be used to analyze the group's activities space (eg tutor-to-group or member to member communication flow, asynchronism in the space group, etc.). These parameters allow the efficiency of the group's activities for better performance and group and individual attitudes of its members in the shared workspace that was predicted.
Furthermore, application design will be necessary for this purpose organize and manage both the resources offered by the system and the users accessing these resources. All this user-and resource-user interaction user generates events or "logs" to be found in the log files and represent the information base for conducting statistical process aimed at obtaining knowledge of the system. This will facilitate collaborative learning process by keeping users abreast of what is happening in the system (for example, the contributions of others, documents created, etc.) and control user behavior in order to provide support (eg, help students who are unable to perform a task on your own). Therefore, the user-user and user interaction is critical resource in any collaborative learning environment
to enable groups of students to communicate with each other and achieve common goals (eg, a classroom activity in collaboration).
Although user interaction is the most important point to be managed in applications, it is usually also important to be able to monitor and control the performance and overall system performance. This allows the administrator to continuously monitor critical parts of the system and act as necessary. Moreover, it adds a layer of security implied what already exists (for example, user habits of control "to detect fraudulent use of the system unauthorized users).
To effectively communicate the knowledge gained from the activity of the users group in terms of knowledge and feedback, CSCL applications should provide full support to the above three aspects are essential in all applications collaboration, namely, coordination, communication and collaboration in order to create virtual environments where students, teachers, tutors, etc. are able to cooperate with each other to achieve a common goal of learning. Coordination involves the organization of the group in order to achieve the objectives set and monitor user activity, which is possible by maintaining awareness of the participants.
The communication relates to the communication medium basically messages between users within and between groups and may be in both synchronous and asynchronous modes. Finally, the partnership allows members of the group share all kinds of resources, which is also found in synchronous and asynchronous modes. Both coordination and collaboration and communication will generate many events that will be communicated to users after these facts have been manipulated and analyzed in order to provide users with as much awareness as possible immediate and constant flow as
possible feedback.
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Trend mobile technology

jueves, 22 de noviembre de 2012 | 0 comentarios


In the past year 2012, the evolution of technology has leapt unexpectedly.
The technology boom of the new generation results in terms of
"Cell phone and Internet" (Smartphone, Tablet, iPhone, etc.) which, rather than being separate realities complement.
However, the development of these types of technology comes a point
wherein converge, and when the network is a global communications
opens and exceeds the expectations of its creators, Internet no longer
exclusively for the military and government, and combined with the services
telephony becomes a social interaction media currently
is present in all areas of daily life.
Today, these technologies are combined in a single, the cellular and
not limited to the function of two people communicate with each other, but now
have evolved to include modalities such as Internet access in almost
all its aspects (data, mp3, teleconference, transmission
photo files and videos, etc..).
This brings countless advantages, accelerate the pace of obtaining
information, facilitates communication, reduces emissions and response times;
ie transforms everyday life into an event technology,
all this tied to economic growth of societies, and beyond
all changes in the natural order of things that the technology generates.
Having seen so many wide and constant changes
that mobile telephony and the Internet have been issued on the global community,
arises in my interest in further informatin on the issues that shape this revolution in our own environment.
To meet the above, in this paper we proposed the development of a software application with mobile computing platform, providing access to information located on a platform database on a Web server, through mobile devices such as cell phones.
The application provides for the registration and monitoring of proprietary information
a pharmaceutical entity, ie the relevant information of the client,
purchasing products and prescription medicines.
This means customers the ability to self manage their comprasen anytime and anywhere without having to physically attend the pharmacy branches and with only the help of a modern cell phone.
Proposed turn developing a web application platform make it accessible on the Intranet, by providing additional features like be: user registration, stock control and drug products counter.
It also proposed the development of a Web site accessible from the Internet,
that appears to be the site of a pharmacy, which contemplates functions
e-commerce such as: customer registration, sale of products and / or drugs
on-line, allowing a customer to make your purchase so virtual.
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sábado, 17 de noviembre de 2012 | 0 comentarios

Differences OLTP vs Data Warehouse

Traditional systems of transactions and data warehousing applications are polar opposites in terms of their design requirements and operating characteristics.
OLTP applications are organized to execute transactions for which they were made, for example, move money between accounts, a charge or credit, a return of inventory, etc.. Furthermore, a data warehouse is organized based on concepts such as: customer invoice, products, etc.
Another difference lies in the number of users. Normally, the number of users of a data warehouse is less than one OLTP. It is common to find that transactional systems are accessed by hundreds of users simultaneously, while only tens Data Warehouse. OLTP systems perform hundreds of transactions per second while a single query of a Data Warehouse can take minutes. Another factor is that transactional systems frequently are smaller in size to the data warehouses, this is because a data warehouse information can consist of several OLTP's.
There are also differences in the design, while an extremely normalized OLTP, of a Data Warehouse tends to be denormalized. The OLTP typically consists of a large number of tables, each with few columns, while in a data warehouse is the lower number of tables, but each of them tends to be greater in number of columns.
The OLTP is continuously updated by operational systems every day, while the Data Warehouse are updated periodically batch.
OLTP structures are very stable, rarely change, while those of Data Warehouses derivatives are constantly changing their evolution. This is because the types of queries to which they are subject are varied and it is impossible to foresee all in advance.
Improving Information Delivery: complete, correct, consistent, timely and accessible. Information that people need, in the time you need it and in the format you need.
Improve Decision Making Process: With more support information are obtained faster decisions, and also the business people acquire greater confidence in their own decisions and those of the rest, and achieved a greater understanding of the impacts of their decisions .
Positive Impact on Business Processes: when people are given access to a better quality of information, the company can achieve on its own:
   · Eliminate delays business processes resulting from incorrect, inconsistent and / or nonexistent.
   · Integrate and optimize business processes through sharing and integrated information sources.
   · Eliminate the production and processing of data that is not used or required as a result of poorly designed applications or no longer used.
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CRM News Software Data: Choosing the Public or Private Cloud

lunes, 12 de noviembre de 2012 | 0 comentarios


Still, the transition to the cloud still leaves some company leaders wondering about the right place to host their customer relationship management data. "The cloud," as experts have come to call the collection of data centers storing corporate information, still has some faults. Sharing data center resources carries the perceived risks of security issues and the real threat of downtime. Companies willing to take on extra risk generally enjoy heightened response times and greater productivity. But media coverage of high profile outages at major data centers has dampened some CIO's enthusiasm for distributed computing.

Therefore, some CRM software vendors have created service packages that include, in their terms, a "private cloud." Like a traditional dedicated server rack, resources are used only by a single client company. However, with help from blade servers, RAID storage arrays, and other tools, vendors promise the ability to ramp up quickly during times of peak demand--without relying on a shared server farm.

According to industry analysts, recessions often force companies to make hard decisions about their vendors and platforms. While some CRM software companies have tentatively extended invitations to the "private cloud," other vendors rely on the scalability and redundancy of the public cloud for their clients' success. Either way, may current CRM software subscribers will spend time over the coming months requesting quotes and exploring the kind of data infrastructure necessary to take their businesses to the next level.
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Real world, real successes

domingo, 4 de noviembre de 2012 | 0 comentarios


IBM is the industry-leading supplier of
grid solutions, services and expertise
to the scientific and technical communities,
as well as to the financial
services sector. Leveraging its considerable
experience in implementing
commercial grids worldwide, IBM has
created targeted grid offerings customized
to meet the unique grid computing
needs of the financial services
industry. IBM Grid Computing is currently
engaged with more than 20
major financial institutions in North
America, Europe and Japan, and
more than 100 organizations
worldwide.
Wachovia worked with IBM and
DataSynapse to enhance the processing
speed of trading analytics in
the financial services company’s fixed
income derivatives group. Before
implementing a grid solution, profit
and loss reports and risk reports took
as long as 15 hours to run; now, grid
solution in place, Wachovia can turn
around mission-critical reports in minutes
on a real-time, intraday basis.
Moreover, trading volume increased
by 400 percent, and the number of
simulations by 2,500 percent. As a
result, the group can book larger,
more exotic and more lucrative trades
with more accurate risk taking.
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Technologies powering the grid 2012

lunes, 29 de octubre de 2012 | 0 comentarios


The workhorses of the IBM grid infrastructure
are the grid engines
desktop PCs, workstations or servers
that run the UNIX, Microsoft
Windows or Linux operating systems
. These compute
resources execute various jobs submitted
to the grid, and have access
to a shared set of storage devices.
The IBM Grid Offering for Risk
Management and Compliance
relies on grid middleware from
DataSynapse to create distributed
sets of virtualized resources.
The production-proven, awardwinning
DataSynapse GridServer
application infrastructure platform
extends applications in real time to
operate in a distributed computing
environment across a virtual pool of
underutilized compute resources.
GridServer application interface modules
allow risk management and
compliance applications and nextgeneration
development of risk management
and compliance application
platforms to be grid-enabled.
IBM DB2 Information Integrator
enables companies to have integrated,
real-time access to structured
and unstructured information across
and beyond the enterprise. Critical to
the grid infrastructure, the software
accelerates risk and compliance analytics
applications that process massive
amounts of data for making
better informed decisions. DB2
Information Integrator provides
transparent access to any data
source, regardless of its location,
type or platform.
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