Indirect sampling Clause Samples

Indirect sampling. Indirect sampling starts from a sample s of ns units obtained with a probability sampling design, it enlarges the initial sample using a link matrix and it associates estimation weights to the final sample units using the initial sampling weights and the link matrix. The sampling strategy is based on the Generalized Weight Share Method (GWSM – ▇▇▇▇▇▇▇▇, 1995; 2002; ▇▇▇▇▇▇▇ and ▇▇▇▇▇▇▇▇, 2006) that can be viewed as a generalization of Network Sampling and also of Adaptive Cluster Sampling (▇▇▇▇▇▇▇▇, 1992; ▇▇▇▇▇▇▇▇ and ▇▇▇▇▇, 1996). The objective is the estimation of a set of parameters of the RA and JC population using the PI-Silc sampling weights and the link matrix generated by the matching procedure (see § 4). The set of individuals selected and surveyed by ▇▇-▇▇▇▇ is considered a random sample s of size ns . For each unit in the sample the set of units is defined on the result of the record linkage process between the Pi-Silc data and the JC (RA) datasets. Let indicate this additional set with c of size nc . In such way the initial sample of PI-Silc units is enlarged adding the linked units in the JC (RA) data. The correspondence between the sampled unit and the unit in the administrative data set can be W = ⎡wsc ⎤ s c represented by a link matrix wsc ≥ 0 ji ⎦ of size n × n where each element the linkage weight wsc > 0 ji . That is, unit j of s is related to unit i of c provided that ji , otherwise the two units are not related to each other. We assume that for any unit j the values of the link matrix can be obtained. Notice that in this application only one unit j has been finally selected for each sampled unit i. As a consequence the size of the target populations (JC/RA) is the same as the size of Pi-Silc sample. W = W ⎡diag(1T W )⎤−1 The link matrix can be also defined in standardized form sc
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Related to Indirect sampling

  • Sampling The Licensee agrees that the Composition is purchased as a “Work Made for Hire” whereby the clearing of any sampled materials is the responsibility of Licensee.

  • System Logging The system must maintain an automated audit trail which can 20 identify the user or system process which initiates a request for PHI COUNTY discloses to 21 CONTRACTOR or CONTRACTOR creates, receives, maintains, or transmits on behalf of COUNTY, 22 or which alters such PHI. The audit trail must be date and time stamped, must log both successful and 23 failed accesses, must be read only, and must be restricted to authorized users. If such PHI is stored in a 24 database, database logging functionality must be enabled. Audit trail data must be archived for at least 3 25 years after occurrence.

  • Materials of Environmental Concern have not been transported or disposed of from the Properties in violation of, or in a manner or to a location that could give rise to liability under, any Environmental Law, nor have any Materials of Environmental Concern been generated, treated, stored or disposed of at, on or under any of the Properties in violation of, or in a manner that could give rise to liability under, any applicable Environmental Law;

  • Testing Landlord shall have the right to conduct annual tests of the Premises to determine whether any contamination of the Premises or the Project has occurred as a result of Tenant’s use. Tenant shall be required to pay the cost of such annual test of the Premises; provided, however, that if Tenant conducts its own tests of the Premises using third party contractors and test procedures acceptable to Landlord which tests are certified to Landlord, Landlord shall accept such tests in lieu of the annual tests to be paid for by Tenant. In addition, at any time, and from time to time, prior to the expiration or earlier termination of the Term, Landlord shall have the right to conduct appropriate tests of the Premises and the Project to determine if contamination has occurred as a result of Tenant’s use of the Premises. In connection with such testing, upon the request of Landlord, Tenant shall deliver to Landlord or its consultant such non-proprietary information concerning the use of Hazardous Materials in or about the Premises by Tenant or any Tenant Party. If contamination has occurred for which Tenant is liable under this Section 30, Tenant shall pay all costs to conduct such tests. If no such contamination is found, Landlord shall pay the costs of such tests (which shall not constitute an Operating Expense). Landlord shall provide Tenant with a copy of all third party, non-confidential reports and tests of the Premises made by or on behalf of Landlord during the Term without representation or warranty and subject to a confidentiality agreement. Tenant shall, at its sole cost and expense, promptly and satisfactorily remediate any environmental conditions identified by such testing in accordance with all Environmental Requirements. Landlord’s receipt of or satisfaction with any environmental assessment in no way waives any rights which Landlord may have against Tenant.

  • Contamination The presence in, on or under land, air or water of a substance (whether a solid, liquid, gas, odour, heat, sound, vibration or radiation) at a concentration above the concentration at which the substance is normally present in, on or under land, air or water in the same locality, that presents a risk of Environmental Harm, including harm to human health or any other aspect of the Environment, or could otherwise give rise to a risk of non-compliance with any Statutory Requirement for the protection of the Environment.