Machine Learning for Intrusion Detection: Modeling the Distribution Shift

This paper addresses two important issue that arise in formulating and solving computer intrusion detection as a machine learning problem, a topic that has attracted considerable attention in recent years including a community wide competition using a common data set known as the KDD Cup ’99. The first of these problems we address is the size of the data set, 5 × 106 by 41 features, which makes conventional learning algorithms impractical. In previous work, we introduced a one-pass non-parametric classification technique called Voted Spheres, which carves up the input space into a series of overlapping hyperspheres. Training data seen within each hypersphere is used in a voting scheme during testing on unseen data. Secondly, we address the problem of distribution shift whereby the training and test data may be drawn from slightly different probability densities, while the conditional densities of class membership for a given datum remains the same. We adopt two recent techniques from the literature, density weighting and kernel mean matching, to enhance the Voted Spheres technique to deal with such distribution disparities. We demonstrate that substantial performance gains can be achieved using these techniques on the KDD cup data set

Ranking algorithms for implicit feedback

This report presents novel algorithms to use eye movements as an implicit relevance feedback in order to improve the performance of the searches. The algorithms are evaluated on "Transport Rank Five" Dataset which were previously collected in Task 8.3. We demonstrated that simple linear combination or tensor product of eye movement and image features can improve the retrieval accuracy

The pseudodichotomous Dasya sylviae sp. nov. (Delesseriaceae, Ceramiales) from 60–90 m mesophotic reefs off Bermuda

The red alga Dasya sylviae C.W.Schneid., M.M.Cassidy & G.W.Saunders sp. nov . is described from mesophotic depths of 60–90 m off Bermuda. Genetic sequences (COI-5P, rbc L) and morphological characteristics show that this species is distinct from other known pseudodichotomous species of Dasya . Of ten current species in the genus reported from Bermuda, only three, D. collinsiana M.Howe, D. cryptica C.W.Schneid., Quach & C.E.Lane and D. punicea (Zanardini) Menegh., share the overall pattern of pseudodichotomous branching in their axes; however, key morphological features easily distinguish them from D. sylviae sp. nov. The species most similar in habit to D. sylviae sp. nov. is D. crouaniana J.Agardh (type locality West Indies), but it bears shorter pseudolateral branches, and broader and longer tetrasporangial stichidia than the new species. Unique among the species of Dasya , D. sylviae sp. nov. lacks post-sporangial cover cells in tetrasporangial stichidia

Texas Rule of Evidence 503: Defining Scope of Employment for Corporations Comment.

The attorney-corporate client privilege should be regarded as encompassing only communications made to the corporation’s counsel by employees in the scope of their employment. The Supreme Court of Texas and the Texas Court of Criminal Appeals ordered the merger of the Civil and Criminal Rules of Evidence. The merger became effective on March 1, 1998 and is now known as the Texas Rules of Evidence. Although the civil and criminal rules often mirror each other, one monumental change is in the new version of Rule 503. This new version significantly alters the analysis used in a corporate context and determines if there are privileged communications between the attorney and the client’s representative. Texas courts made the switch from the “control group” test to the “subject matter” test, which almost mirrors the version used in federal courts. Under the former Texas rule, the attorney-client privilege applied only to communications between the client\u27s counsel and representatives within the client’s “control group.” This control group could be anyone able to make corporate decisions based on the attorney’s advice. Under this analysis, the attorney-client privilege rarely applied to anyone below the top level of the corporation. The new subject matter test examines the communication’s contents rather than the corporate position of the representative responsible for the communication and is much more undefined when determining the scope of employment. Successful use of this test should begin with identifying employers and their employees. Then the employee could personify the corporation or communicate on matters relating to his specific duties to invoke the attorney-client privilege. Unfortunately, issues with the current understanding of the subject matter test will continue to arise until a dispute arises to clarify the rule

The Trestle and other stories (Original writing).

Abstract Not Available. Source: Masters Abstracts International, Volume: 41-04, page: 0919. Adviser: Alistair MacLeod. Thesis (M.A.)--University of Windsor (Canada), 2002